Memorex MVT2135 Service Manual

Page 1
Page 2
CONTENTS
SERVICING NOTICES ON CHECKING ..................................................................................
HOW TO ORDER PARTS .......................................................................................................
CONTENTS.................................................................................................................................
GENERAL SPECIFICATIONS....................................................................................................
DISASSEMBLY INSTRUCTIONS
2.REMOVAL OF DECK PARTS............................................................................................
3.REMOVAL OF ANODE CAP..............................................................................................
4. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC .................................................
KEY TO ABBREVIATIONS .....................................................................................................
SERVICE MODE LIST ............................................................................................................
PREVENTIVE CHECKS AND SERVICE INTERVALS ............................................................
WHEN REPLACING EEPROM (MEMORY) IC .....................................................................
SERVICING FIXTURES AND TOOLS .....................................................................................
PREPARATION FOR SERVICING .........................................................................................
MECHANICAL ADJUSTMENTS .............................................................................................
ELECTRICAL ADJUSTMENTS ...............................................................................................
BLOCK DIAGRAMS
TV............................................................................................................................................
Y/C/AUDIO/CCD/HEAD AMP/IN/OUT....................................................................................
MICON/OPERATION...............................................................................................................
PRINTED CIRCUIT BOARDS
OPERATION............................................................................................................................
SYSCON/CRT.........................................................................................................................
SCHEMATIC DIAGRAMS
Y/C/AUDIO/CCD/HEAD AMP.................................................................................................
MICON.....................................................................................................................................
IN/OUT.....................................................................................................................................
CHROMA/IF.............................................................................................................................
SOUND AMP...........................................................................................................................
POWER...................................................................................................................................
DEFLECTION..........................................................................................................................
CRT..........................................................................................................................................
OPERATION...........................................................................................................................
INTERCONNECTION DIAGRAM............................................................................................
WAVEFORMS.............................................................................................................................
MECHANICAL EXPLODED VIEWS...........................................................................................
CHASSIS EXPLODED VIEWS...................................................................................................
MECHANICAL REPLACEMENT PARTS LIST.........................................................................
CHASSIS REPLACEMENT PARTS LIST..................................................................................
ELECTRICAL REPLACEMENT PARTS LIST ........................................................................
A1-1 A1-1 A2-1 A3-1~A3-4
B1-1 B2-1~B2-5 B3-1 B4-1, B4-2 C1-1, C1-2 C2-1 C3-1, C3-2 C4-1 C5-1 C5-1 D1-1~D1-4 D2-1~D2-5
E-1, E-2 E-3, E-4 E-5, E-6
F-1, F-2 F-3~F-6
G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 G-15, G-16 G-17, G-18 G-19, G-20 H-1, H-2 I-1, I-2 I-3, I-4 J1-1 J2-1 J3-1, J3-2
A2-1
Page 3
GENERAL SPECIFICATIONS
5oC
0oC
0oC
60oC
G-1 TV CRT CRT Size / Visual Size 13 inch / 335.4 mmV
G-2 VCR System VHS Player / Recorder
G-3 Tuning Broadcasting System US System M
G-4 Signal Video Signal Input Level 1 V p-p/75 ohm
G-5 Power Power Source AC 120V,60Hz
G-6 Regulation Safety UL
G-7 Temperature Operation
G-8 Operating Humidity Less then 80% RH G-9 On Screen Menu Yes
System CRT Type Normal
Color System NTSC Speaker 1Speaker
Sound Output MAX 1.5 W
System Video System NTSC
Hi-Fi STEREO No NTSC PB ­Deck DECK OVD-7
Heads Video Head 2Head
FM Audio Head No
Audio /Control Mono /Yes
Erase(Full Track Erase) Yes Tape Rec PAL ­Speed NTSC SP/SLP
Play PAL -
Fast Forward / Rewind Time (Approx.) FF:4'50"/REW:2'30"
Forward/Reverse NTSC or PAL-M SP/LP/SLP=3x,5x/7x,9x/9x,15x Picture Search Frame Advance ­Slow Speed -
System Tuner and System 1Tuner
Receive CH Destination US(w/CATV)
Intermediate Picture(FP) 45.75 MHz Frequency Sound(FS) 41.25 MHz
Preset CH Stereo/Dual TV Sound Tuner Sound Muting Yes
Audio Signal
Hi-Fi Audio Signal Dynamic Range : More than - dB
Power Consumption at AC 65 W at 120V 60Hz
Protector Power Fuse Yes
Deflection 90 degree Magnetic Field BV/BH +0.45G / +0.18G
Position Front Size 1.5 x 2.5 Inch Impedance 8 ohm
10%(Typical) 1.0 W
Loading System Front Motor 3
NTSC SP/LP/SLP
with Cassette T-120
Tuning System F-Synth Input Impedance VHF/UHF 75 ohm
CH Coverage
FP-FS 4.5 MHz
Output Level ­S/N Ratio (Weighted) 50dB Horizontal Resolution at SP Mode 220Lines Input Level Output Level S/N Ratio at SP (Weighted) 38dB
Harmonic Distortion at SP (1KHz) Typical
Frequency Response at SP 100Hz - 10kHz
at LP 100Hz - 6kHz
at SLP 100Hz - 4kHz
Wow And Flutter : Less than - %Wrms Channel Separation : More than - dB Harmonic Distortion : Less than - %
DC -
at DC ­Stand by (at AC) 5 W at 120V 60Hz Per Year -
Dew Sensor
Radiation FCC X-Radiation DHHS
Storage
-8dBm/50Kohm
-
1.5 %
+
-2
2~69, 4A,A-5~A-1, A~I,
J~W,W+1~W+84
No No
No
~ +4
~ +
A3-1
Page 4
GENERAL SPECIFICATIONS
Display Menu Type Charactor
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry Clock / Date Yes CH/AV Yes Tape Counter(Linear Counter) Yes Tape Speed Yes Sleep Time Yes Stereo/Audio Output
Control Volume Yes Level Bright / Contrast / Sharpness / Color Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark) Auto Tracking/Manual Tracking Yes Caption / Text Yes Index Muting Yes Hi-Fi Repeat Yes Zero Return DEW
G-10 OSD Language English French Spanish
G-11 Clock,Timer Calendar 1990/1/1 ~ 2081/12/31
and Timer Timer Events 8 Program/ 1 Month Back-up One Touch Recording Max Time 5 Hours
OTPB Valid Time Sleep Timer Max Time 120
On/Off Timer Program(On Timer / Off Timer) 1 Auto Shut Off No Signal 15
Timer Back-up (at Power Off Mode) 5
G-12 Remote Unit RC-CG
Control Glow in Dark Remocon Yes
Power Source Voltage(D.C) 3V
Total Keys 41 Keys Power Yes
Timer Rec Set Yes Channel Setup Yes
TV/CATV Yes Auto CH Memory Yes Add/ Delete Yes Guide CH Set
TV Setup Yes
V-chip Set Yes On/Off Timer Set Yes Picture Yes Audio
Sap On/Off Auto Repeat On/Off Yes System Setup Yes
Clock Set Yes
Language Yes
Auto Clock On/Off Yes
Standard Time Yes
Daylight Saving Time Yes Commercial Advance
Marking On/Off
Blueback On/Off
Playback Auto/Manual
Unmarked Tape Movie Advance
Go To Movie
Go To Preview
Bilingal
SAP
Tint Yes Bass/Treble/Balance Manual Tracking Yes
Yes
OSD Language Setting English
Step 10
No Operation -
UM size x pcs UM-4 x 2 pcs
1 Yes
2 Yes
3 Yes
4 Yes
5 Yes
6 Yes
7 Yes
8 Yes
No
No No
No No No No No No No No No
No No No
No
No
No
No No
No Min Min Program Min
Sec
Keys
A3-2
Page 5
GENERAL SPECIFICATIONS
9 Yes
0 Yes
CH Up Yes
CH Down Yes
Volume Up Yes
Volume Down Yes
Input Select Yes
Play Yes
F.Fwd Yes
Rew Yes
Pause/Still Yes
Stop Yes
Rec/OTR Yes
Eject Yes
Counter Reset Yes
Speed Yes
Timer Rec Yes
TV Monitor Yes
Quick View Yes
Program Yes
Slow
Auto Tracking Yes
Set/Tracking+ Yes
Set/Tracking - Yes
Menu Yes
Enter Yes
Cancel Yes
Call Yes
TV/Caption/Text Yes
Sleep Timer Yes
Muting Yes
Zero Return Yes
CM Skip Yes
Audio Select
G-13 Features Auto Head Cleaning Yes
Auto Tracking Yes HQ (VHS Standard High Quality) Yes Auto Power On, Auto Play, Auto Rewind, Auto Eject Yes VIDEO PLUS+(SHOWVIEW,G-CODE) Auto Clock Yes Forward / Reverse Picture Search Yes Reverse Slow One Touch Playback Auto CH Memory Yes Closed Caption Yes TV Auto Shut off Function Yes End Call Index Search SQPB CATV Yes CM Skip(30sec x 6 Times) Yes Comb Filter TV Monitor Yes Program Extend Choke Coil Energy Star Yes Protect of FBT Leak Curcuit Dirty Head V-chip USA V-chip Yes
CANADA V-chip
Zero Return Yes CM Advance Movie Advance
G-14 Accessories Owner's Manual Language English/Spanish
w/Guarantee Card
Remote Control Unit Yes Battery
UM size x pcs -
No
No
No
No No
No No No
No
No No
No No
No
No No
No
No
Rod Antenna Yes
Poles 2 pole
Terminal F type
w/300 ohm to 75 ohm Antenna Adapter Yes
Loop Antenna
Terminal -
U/V Mixer 300 ohm to 75 ohm Antenna Adapter
A3-3
No
No No
Page 6
GENERAL SPECIFICATIONS
Antenna Change Plug DC Car Cord (Center+) AC Plug Adapter AC Cord AV Cord (2Pin-1Pin) Guarantee Card Yes Registration Card ESP Card Warning Sheet Dew/AHC Caution Sheet Quick Set-up Sheet Circuit Diagram Service Facility List Important Safeguard
G-15 Interface Switch Power Yes
G-16 Set Size Approx. W x D x H (mm) 362 x 370.5 x 382 G-17 Weight Net (Approx.) 11.0
G-18 Carton Master Carton
G-19 Cabinet Material Cabinet Front PS 94V0/DECABROM
Informatin Sheet
Play Yes
Pause/Still
System Select
One Touch Playback
Channel Up Yes
Channel Down Yes
F.FWD/Cue Yes
Eject/Stop Yes
Main Power SW
Volume Up Yes
Volume Down Yes
Rew/Rev Yes
Rec/OTR Yes
Indicator Power
Key Light up Rec/OTR
Terminals Front Video Input RCA x 1
Rear Video Input
Gift Box Yes
Drop Test Natural Dropping At
Container Stuffing(40' container) 700
Input Select
Rec/OTR Red
T-Rec Red
On Timer
CS
One Touch Playback
Play
Audio Input RCA x 1
Other Terminal Head Phone(Stereo & Mono, 3.5mm)
Audio Input
Video Output
Audio Output
Euro Scart
Diversity
Ext Speaker W Im
DC Jack 12V(Center +)
VHF/UHF Antenna Input
AC Inlet
Gross (Approx.) 12.5
Content -
Material -
Dimensions W x D x H(mm) -
Description of Origin -
Material Double/White
Dimensions W x D x H(mm) 423 x 447 x 443
Design As per Buyer's
Description of Origin Yes
Height (cm) 62
Cabinet Rear PS 94V0/DECABROM
F Type
1 Corner / 3 Edges / 6 Surfaces
No No No No No
No No No No No No No No No
No No No
No
No No
No No No No No
No No No No No No No No
No
(24.3 lbs) (27.6 lbs) No
Sets
A3-4
Page 7
DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
Remove the 4 screws 1.
2.
Remove the screw 2.
3.
Remove the AC cord from the AC cord hook 3.
4.
Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1
1
2
1
3
Back Cabinet
1
1-2: CRT PCB (Refer to Fig. 1-2) CAUTION:BEFORE REMOVING THE ANODE CAP,
DISCHARGE ELECTRICITY BECAUSE IT CONTAINS HIGH VOLTAGE. BEFORE ATTEMPTING TO REMOVE OR REPAIR ANY PCB, UNPLUG THE POWER CORD FROM THE AC SOURCE.
1.
Remove the Anode Cap. (Refer to REMOVAL OF ANODE CAP)
2.
Disconnect the following connectors: (CP801 and CP851).
3.
Remove the CRT PCB in the direction of arrow.
CRT PCB
Front Cabinet
Fig. 1-1
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
1.
Remove the 2 screws 1.
2.
Disconnect the following connectors: (CP757, CP353, CP401 and CP502).
3.
Unlock the support 2.
4.
Remove the TV/VCR Block in the direction of arrow.
Front Cabinet
1
TV/VCR Block
1
2
UP TO RELEASE
Fig. 1-3
1-4:DECK CHASSIS AND SYSCON PCB
(Refer to Fig. 1-4)
1.
Remove the screw 1.
2.
Remove the screw 2.
3.
Remove the screw 3.
4.
Remove the 3 screws 4.
5.
Disconnect the following connectors: (CP1004, CP1005, CP1006, CP4001, CP4002 and CP4003).
6.
Remove the Deck Chassis and Deck Shield Plate in the direction of arrow (A).
7.
Remove the screw 5.
8.
Remove the Syscon PCB in the direction of arrow (B).
1
4
3
2
4
4
Deck Shield Plate
Fig. 1-2
B1-1
Deck Chassis
(A)
5
(B)
Syscon PCB
Deck Holder
Fig. 1-4
Page 8
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports 1.
1.
Slide the 2 supports 2 and remove the Top Bracket.
2.
NOTE
1. After the installation of the Top Bracket, bend the
support 1 so that the Top Bracket is fixed.
Top Bracket
1
Top Bracket
2
Main Chassis
2
Main Chassis
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the front side.
1.
Push the Locker R to remove the Cassette Side R.
2.
Remove the Cassette Side L.
3.
Main Chassis
Cassette Side R
1
Fig. 2-1
Locker R
NOTE
1.2.In case of the Locker R installation, check if the two positions of Fig.2-3-B are correctly locked. When you install the Cassette Side R, be sure to move the Locker R after installing.
Locker R
Check if these
Cassette Side R
positions are locked.
Fig. 2-3-B
2-4: LINK UNIT (Refer to Fig. 2-4)
Set the Link Unit to the Eject position.
1. Unlock the support 1.
2. Remove the (A) side of the Link Unit first, then remove
3. the (B) side.
Main Chassis
Link Unit
Link Ass'y
Cassette Side L
Main Chassis
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring.
1. Unlock the 4 supports 1 and then remove the Cassette
2. Side L/R. Unlock the support 2 and then remove the Locker R.
3.
Locker Spring
1
1
2
Cassette Holder
Locker R
1
1
(A)
1
(B)
Link Unit
Main Chassis
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Remove the Link Lever.
1. Remove the Flap Lever.
2.
Flap Lever
Link Lever
Fig. 2-4
Fig. 2-5
Cassette Side R
Cassette Side L
Fig. 2-3-A
B2-1
Page 9
DISASSEMBLY INSTRUCTIONS
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw 1.
1. Remove the Loading Motor.
2. Remove the Worm.
3.
Loading Motor
Worm
Main Chassis
• Screw Torque: 3 ± 0.5kgf•cm
1
Fig. 2-6-A
NOTE
1. In case of the Worm installation, check if the value of the Fig. 2-6-B is correct.
19.2 ± 0.1mm
1
Tension Connect
Tension Spring
2
4
1
3
Tension Holder
Tension Band
Tension Arm Ass'y
Fig. 2-7-B
NOTE
1.
In case of the Tension Band installation, note the direction of the installation. (Refer to Fig. 2-7-C)
2.
In case of the Tension Band installation, install correctly as Fig. 2-7-D.
3.
In case of the Tension Connect installation, install as the circled section of Fig. 2-7-E.
Safety surface for pressing of the insert.
Fig. 2-6-B
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the
1. Tension Holder hook is set to the position of Fig. 2-7-A to move the Tension Arm Ass'y. Remove the Tension Spring.
2. Unlock the 2 supports 1 and remove the Tension
3. Band. Unlock the support 2 and remove the Tension Arm
4. Ass'y. Unlock the support 3 and remove the Tension
5. Connect. Float the hook 4 and turn it clockwise then remove the
6. Tension Holder.
Tension Arm Ass'y
Tension Connect
[OK]
[NG]
Tension Connect
Tension Connect
Tension Connect
Main Chassis
Tension Band
Fig. 2-7-C
Tension Band
Tension Band
Fig. 2-7-D
Fig. 2-7-E
Fig. 2-7-A
B2-2
Page 10
DISASSEMBLY INSTRUCTIONS
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring.
1. Turn the T Brake Arm clockwise and bend the hook
2. section to remove it. Unlock the 2 supports 1 and remove the T Brake
3. Band.
Idler Gear
Idler Arm Ass'y
S Reel
T Brake Band
Hook section
1
1
T Brake Arm
T Brake Spring
Fig. 2-8-A
NOTE
1. In case of the T Brake Band installation, install correctly as Fig. 2-8-B.
[OK]
T Brake Band
[NG]
T Brake Band
T Brake Arm
T Brake Arm
(A) T Reel
1
(A)
1
Fig. 2-9-A
NOTE
1.2.In case of the S Reel and T Reel installation, check if the correct parts are installed. (Refer to Fig. 2-9-B) In case of the Idler Arm Ass'y installation, install correctly as Fig. 2-9-C.
Fig. 2-8-B
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel.
1. Remove the 2 Polyslider Washers 1.
2. Remove the Idler Arm Ass'y and Idler Gear.
3.
NOTE
Take care not to damage the gears of the S Reel and T
1. Reel. The Polyslider Washer may be remained on the back of
2. the reel. Take care not to damage the shaft.
3. Do not touch the section "A" of S Reel and T Reel. (Use
4. gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains on it. When you install the reel, clean the shaft and grease it
5. (MG-33). (If you do not grease, noise may be heard in FF/REW mode.) After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
[OK]
[NG]
Clutch Gear
Clutch Gear
Big Hole (S Reel)
Small Hole (T Reel)
Fig. 2-9-B
Idler Arm Ass'y
Idler Arm Ass'y
Fig. 2-9-C
B2-3
Page 11
DISASSEMBLY INSTRUCTIONS
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support 1 and remove the Cassette
1. Opener. Remove the Pinch Roller Block and P5 Arm Ass'y.
2.
1
Cassette Opener
Pinch Roller Block
P5 Arm Ass'y
Main Chassis
Fig. 2-10-A
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1. In case of the Pinch Roller Block and the Pinch Roller
2. Cam installation, install correctly as Fig. 2-10-B.
(3)(1)
2
2
(2)
1
• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)
Spring Position
2
A/C Head
A/C Head Spring
A/C Head Base
Fig. 2-11-A
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw 1.
1. Remove the FE Head.
2.
Pinch Roller Block
P5 Arm Ass'y
Can be seen the hole of the Main Cam.
Can be seen the hole of the Pinch Roller Cam.
Fig. 2-10-B
2-11: A/C HEAD (Refer to Fig. 2-11-A)
Remove the screw 1.
1. Remove the A/C Head Base.
2. Remove the 3 screws 2.
3. Remove the A/C Head and A/C Head Spring.
4.
NOTE
1.
Do not touch the A/C Head. (Use gloves.)
2.
When you install the A/C Head Spring, install as shown in Fig. 2-11-B.
3.
When you install the A/C Head, tighten the screw (1) first, then tighten the screw (2), finally tighten the screw (3).
1
FE Head
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-12
B2-4
Page 12
DISASSEMBLY INSTRUCTIONS
2-13:AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support 1 and remove the AHC Ass'y.
1. Disconnect the following connector:
2. (CD2001) Remove the 3 screws 2.
3. Remove the Cylinder Unit Ass'y.
4.
NOTE
When you install the Cylinder Unit Ass'y, tighten the
1. screws from (1) to (3) in order while pulling the Ass'y toward the left front direction.
Cylinder Unit Ass'y
1
(3)
(2)
(1)
• Screw Torque: 3 ± 0.5kgf•cm
2
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14)
Remove the Capstan Belt.
1. Remove the 3 screws 1.
2. Remove the Capstan DD Unit.
3.
2
2
AHC Ass'y
Fig. 2-13
2-15:
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A)
Remove the E-Ring 1, then remove the Main Cam.
1. Remove the E-Ring 2, then remove the Pinch Roller
2. Cam and Joint Gear.
1
Main Cam
2
Pinch Roller Cam
Joint Gear
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam
1. installation, install them as the circled section of Fig. 2­15-B so that the each markers are met. (Refer to Fig.
2-15-B)
Pinch Roller Cam
Marker
Main Cam
• Screw Torque: 4 ± 0.5kgf•cm
Capstan Belt
Capstan DD Unit
Fig. 2-15-B
2-16: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-16-A)
1.2.Remove the E-Ring 1 and remove the Main Loading Gear. Remove the Main Rod, Tension Lever, Loading Arm S Ass'y and Loading Arm T Ass'y.
1
1
1
1
Fig. 2-14
Main Rod
Tension Lever
Main Loading Gear
Loading Arm T Ass'y
Loading Arm S Ass'y
Fig. 2-16-A
B2-5
Page 13
DISASSEMBLY INSTRUCTIONS
NOTE
When you install the Loading Arm S Ass'y, Loading Arm
1. T Ass'y and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Marker
CASSETTE GUIDE POST/INCLINED BASE S/T
2-18:
UNIT/P4 CAP (Refer to Fig. 2-18-A)
Remove the P4 Cap.
1. Unlock the support 1 and remove the Cassette Guide
2. Post. Remove the Inclined Base S Unit and Inclined Base T
3. Unit.
Main Loading Gear
Marker
Loading Arm T Ass'y
2-17:
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/
Loading Arm S Ass'y
CLUTCH GEAR (Refer to Fig. 2-17-A)
Remove the Polyslider Washer 1.
1. Remove the Clutch Ass'y and Ring Spring.
2. Remove the Clutch Lever.
3. Remove the Coupling Gear, Coupling Spring and
4. Clutch Gear.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Coupling Spring
Clutch Lever
Fig. 2-16-B
Cassette Guide Post
Inclined Base T Unit
P4 Cap
Inclined Base S Unit
1
Fig. 2-18-A
NOTE
Do not touch the roller of Guide Roller.
1. In case of the P4 Cap installation, install it with parallel
2. for "A" and "B" of Fig. 2-18-B. In case of the Cassette Guide Post installation, install
3. correctly as the circled section of Fig. 2-18-C.
"A"
"B"
Clutch Gear
Fig. 2-17-A
NOTE
In case of the Clutch Ass'y installation, install it with
1. inserting the spring of the Clutch Ass'y into the dent of the Coupling Gear. (Refer to Fig. 2-17-B)
Clutch Ass'y
Coupling Gear
Fig. 2-17-B
B2-6
P4 Cap
[OK]
Cassette Guide Post
[NG]
Cassette Guide Post
Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
Page 14
DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. *
After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage.
*
Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 3-1.)
Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated Screwdriver, touch the support of the Anode with the tip of the Screwdriver. A cracking noise will be heard as the voltage is discharged.
GND on the CRT
3. After one side is removed, pull in the opposite direction to remove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 3-3.)
Location of Anode Cap
Fig. 3-3
NOTE
Confirm that there is no dirt, dust, etc. at the spot where the cap was located.
2.3.Arrange the wire of the Anode Cap and make sure the wire is not twisted. Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of the
2. arrow and remove one side of the support.
(Refer to Fig. 3-2.)
Rubber Cap
CRT
Support
Support
CRT
Fig. 3-1
Fig. 3-2
Fig. 3-4
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5.
Support
CRT
5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
Fig. 3-5
B3-1
Page 15
DISASSEMBLY INSTRUCTIONS
4.
REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
REMOVAL
Put the Masking Tape (cotton tape) around the Flat
1. Package IC to protect other parts from any damage.
(Refer to Fig. 4-1.) NOTE
Masking is carried out on all the parts located within 10 mm distance from IC leads.
When IC starts moving back and forth easily after
3. desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 4-3.)
NOTE
Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.
Blower type IC desoldering machine
Masking Tape (Cotton Tape)
Heat the IC leads using a blower type IC desoldering
2.
IC
machine. (Refer to Fig. 4-2.)
NOTE
Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely.
Blower type IC desoldering machine
Fig. 4-1
Tweezers
IC
Fig. 4-3
Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided
5. Shield Wire. (Refer to Fig. 4-4.)
NOTE
Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
IC
Fig. 4-2
IC pattern
Fig. 4-4
B4-1
Page 16
DISASSEMBLY INSTRUCTIONS
INSTALLATION
Take care of the polarity of new IC and then install the
1. new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 4-5.)
Soldering Iron
Solder temporarily
Solder temporarily
Fig. 4-5
Supply the solder from the upper position of IC leads
2. sliding to the lower position of the IC leads.
(Refer to Fig. 4-6.)
When bridge-soldering between terminals and/or the
4. soldering amount are not enough, resolder using a Thin­tip Soldering Iron. (Refer to Fig. 4-8.)
Thin-tip Soldering Iron
IC
Fig. 4-8
Finally, confirm the soldering status on four sides of the
5. IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering.
NOTE
When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided
3.
Supply soldering from upper position to lower position
Shield Wire. (Refer to Fig. 4-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 4-6
Fig. 4-7
B4-2
Page 17
A
A/C ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS'Y AT AUTO A/V
B
BGP BOT BPF BRAKE SOL BUFF B/W
C
C CASE CAP CARR CH CLK CLOCK (SY-SE) COMB CONV CPM CTL CYL CYL-M CYL SENS
D
DATA (SY-CE) dB DC DD Unit DEMOD DET DEV
E
E EF EMPH ENC ENV EOT EQ EXT
F
F FBC FE FF FG FL SW FM FSC FWD
G
GEN GND
H
H.P.F
KEY TO ABBREVIATIONS
:
Audio/Control
:
Automatic Color Control
:
Audio Erase
:
Automatic Frequency Control
:
Automatic Fine Tuning
:
Automatic Fine Tuning Detect
:
Automatic Gain Control
:
Amplifier
:
Antenna
:
Audio Playback
:
Automatic Phase Control
:
Assembly
:
All Time
:
Automatic
:
Audio/Video
:
Burst Gate Pulse
:
Beginning of Tape
:
Bandpass Filter
:
Brake Solenoid
:
Buffer
:
Black and White
:
Capacitance, Collector
:
Cassette
:
Capstan
:
Carrier
:
Channel
:
Clock
:
Clock (Syscon to Servo)
:
Combination, Comb Filter
:
Converter
:
Capstan Motor
:
Control
:
Cylinder
:
Cylinder-Motor
:
Cylinder-Sensor
:
Data (Syscon to Servo)
:
Decibel
:
Direct Current
:
Direct Drive Motor Unit
:
Demodulator
:
Detector
:
Deviation
:
Emitter
:
Emitter Follower
:
Emphasis
:
Encoder
:
Envelope
:
End of Tape
:
Equalizer
:
External
:
Fuse
:
Feed Back Clamp
:
Full Erase
:
Fast Forward, Flipflop
:
Frequency Generator
:
Front Loading Switch
:
Frequency Modulation
:
Frequency Sub Carrier
:
Forward
:
Generator
:
Ground
:
High Pass Filter
H.SW Hz
I
IC IF IND INV
K
KIL
L
L LED LIMIT AMP LM, LDM LP L.P.F LUMI.
M
M MAX MINI MIX MM MOD MPX MS SW
N
NC NR
O
OSC OPE
P
PB PB CTL PB-C PB-Y PCB P. CON PD PG P-P
R
R REC REC-C REC-Y REEL BRK REEL S REF REG REW REV, RVS RF RMC RY
S
S. CLK S. COM S. DATA SEG SEL SENS SER SI SIF SO SOL SP STB SW
:
Head Switch
:
Hertz
:
Integrated Circuit
:
Intermediate Frequency
:
Indicator
:
Inverter
:
Killer
:
Left
:
Light Emitting Diode
:
Limiter Amplifier
:
Loading Motor
:
Long Play
:
Low Pass Filter
:
Luminance
:
Motor
:
Maximum
:
Minimum
:
Mixer, mixing
:
Monostable Multivibrator
:
Modulator, Modulation
:
Multiplexer, Multiplex
:
Mecha State Switch
:
Non Connection
:
Noise Reduction
:
Oscillator
:
Operation
:
Playback
:
Playback Control
:
Playback-Chrominance
:
Playback-Luminance
:
Printed Circuit Board
:
Power Control
:
Phase Detector
:
Pulse Generator
:
Peak-to Peak
:
Right
:
Recording
:
Recording-Chrominance
:
Recording-Luminance
:
Reel Brake
:
Reel Sensor
:
Reference
:
Regulated, Regulator
:
Rewind
:
Reverse
:
Radio Frequency
:
Remote Control
:
Relay
:
Serial Clock
:
Sensor Common
:
Serial Data
:
Segment
:
Select, Selector
:
Sensor
:
Search Mode
:
Serial Input
:
Sound Intermediate Frequency
:
Serial Output
:
Solenoid
:
Standard Play
:
Serial Strobe
:
Switch
C1-1
Page 18
S
SYNC SYNC SEP
T
TR TRAC TRICK PB TP
U
UNREG
V
V VCO VIF VP V.PB VR V.REC VSF VSR VSS V-SYNC VT
X
X'TAL
Y
Y/C
KEY TO ABBREVIATIONS
:
Synchronization
:
Sync Separator, Separation
:
Transistor
:
Tracking
:
Trick Playback
:
Test Point
:
Unregulated
:
Volt
:
Voltage Controlled Oscillator
:
Video Intermediate Frequency
:
Vertical Pulse, Voltage Display
:
Video Playback
:
Variable Resistor
:
Video Recording
:
Visual Search Fast Forward
:
Visual Search Rewind
:
Voltage Super Source
:
Vertical-Synchronization
:
Voltage Tuning
:
Crystal
:
Luminance/Chrominance
C1-2
Page 19
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and
remocon key simultaneously. The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
Set Key Remocon Key Operations
VOL. (-) MIN
VOL. (-) MIN 1
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN 4
VOL. (-) MIN
VOL. (-) MIN
0
2
3
5
6
Releasing of V-CHIP PASSWORD.
Initialization of the factory. NOTE: Do not use this for the normal servicing.
Horizontal position adjustment of OSD. NOTE: Also can be adjusted by using the Adjustment MENU. Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
Adjust the PG SHIFTER automatically. Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjust the PG SHIFTER manually. Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjusting of the Tracking to the center position. NOTE: Also can be adjusted by pressing the ATR button for more than 2 seconds during PLAY.
POWER ON total hours and PLAY/REC total hours are displayed on the screen. Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (CONFIRMATION OF HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
VOL. (-) MIN 8
VOL. (-) MIN 9
Method Operations
Press the ATR button on the remote control for more than 2 seconds during PLAY.
Make the short circuit between the test point of SERVICE and the GND.
Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
Adjusting of the Tracking to the center position. Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
The EOT/BOT/Reel sensor do not work at this moment. Refer to the "PREPARATION FOR SERVICING"
C2-1
Page 20
PREVENTIVE CHECKS AND SERVICE INTERVALS
The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts.
Time
Parts Name
Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band Capstan Shaft
Tape Running Guide Post
Cylinder Unit
: Clean : Replace
500
hours
1,000 hours
1,500 hours
2,000 hours
3,000 hours
Notes
Clean those parts in contact with the tape.
Clean the rubber, and parts which the rubber touches.
Replace when rolling becomes abnormal.
Clean the Head
CONFIRMATION OF HOURS USED
POWER ON total hours and PLAY/REC total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE:The confirmation of using hours will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
1.
Set the VOLUME to minimum.
2.
While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
3.
After the confirmation of using hours, turn off the power.
INIT 00 83 POWER ON
PLAY/REC
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
0010 0003
Initial setting content of MEMORY IC.
POWER ON total hours. PLAY/REC total hours.
C3-1
Page 21
PREVENTIVE CHECKS AND SERVICE INTERVALS
CLEANING
NOTE
After cleaning the heads with isopropyl alcohol, do not run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, damage may occur.
1. AUDIO CONTROL HEAD
Clean the Audio Control Head with the cotton stick soaked by alcohol. Clean the full erase head in the same manner. (Refer to the figure below.)
2. TAPE RUNNING SYSTEM
When cleaning the tape transport system, use the gauze moistened with isopropyl alcohol.
3. CYLINDER
Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol. Hold it to the cylinder head softly. Turn the cylinder head counterclockwise to clean it (in the direction of the arrow). (Refer to the figure below.)
NOTE
Do not exert force against the cylinder head. Do not move the chamois upward or downward on the head. Use the chamois one by one.
Audio Control Head
Cylinder Head
C3-2
Page 22
WHEN REPLACING EEPROM (MEMORY) IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1.
NOTE:Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow
at least 5 seconds before Power On.
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 88 0A 62 63 43 14 34 09 51 38
9A
B2 92 93 00 00 00 15 08 00
10
06 29 01 17 10 60 32 3A DA D7
20 10 15 20 25 26 27 30 3A 3C 3E 40 41 42
28 29 2A 2C 2E 30 32 34 36 38
40 44 4D 4E 4F 50 51 52
43 45 46 47 48 49 4A 4B 4C
53 55 56 57 58 59 5A 5B 5C
50 60 --- --- --- --- --- ---
Enter DATA SET mode by setting VOLUME to minimum.
1. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
2. ADDRESS and DATA should appear as FIG 1.
54
63 64 66 69 6D 74 79 7C 7E 7F
Table 1
ADDRESS DATA
+A
+B +C +D +E +FINI 30 66 00 40 00 1000 A9 0F 94 3E 06 04
5D 5E 5F 60 61 62
INIT 00 83 POWER ON
PLAY/REC
0010 0003
Fig. 1
3.
ADDRESS is now selected and should "blink". Using the PLAY or STOP button on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using PLAY or STOP until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
The unit will now have the correct DATA for the new MEMORY IC.
C4-1
Page 23
SERVICING FIXTURES AND TOOLS
(For 2 heads model)
VHS Alignment Tape JG001 JG001A JG001Q JG001T
(VN S-LI6 )
2 2
(VN S-CO1 )
2
(VN S-LI6 H) (VN S-X6 )
3
2
Screwdriver
JG154 Cable
(For 4 heads model)
3
3
3
VHS Alignment Tape JG001B JG001I JG001P JG001S
1
(VN S-LI6 ) (VN S-CO1 )
1 1
(VN S-LI6 H)
1
(VN S-X6 )
3
3
3
3
JG002B JG002E
JG002F
JG024AJG022 Master PlaneJG153 X Value Adjustment
Adapter Dial Torque Gauge (10~90gf•cm) (60~600gf•cm)
Reel Disk Height Adjustment Jig
JG005 Post Adjustment
Screwdriver Part No. SV-TG0-030-000 (small)
JG100A Torque Tape
(VHT-063)
Tentelometer
Ref. No.
JG001
JG001A
JG001Q
JG001T JG001B
JG001I JG001P JG001S JG002B JG002E JG002F
JG005 JG153
JG022 JG024A JG100A
JG154
Part No.
APJG001000 APJG001A00
APJG001Q00
APJG001T00 APJG001B00
APJG001I00 APJG001P00 APJG001S00 APJG002B00 APJG002E00 APJG002F00 APJG005000 APJG153000 APJG022000 APJG024A00 APJG100A00 APJG154000
Parts Name
VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) Adapter Dial Torque Gauge (10~90gf•cm) Dial Torque Gauge (60~600gf•cm) Post Adjustment Screwdriver X Value Adjustment Screwdriver Master Plane Reel Disk Height Adjustment Jig Torque Tape (VHT-063) Cable
PREPARATION FOR SERVICING
Remarks
Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment VSR Torque, Brake Torque (S Reel/T Reel Ass'y) Brake Torque (T Reel Ass'y) VSR Torque, Brake Torque (S Reel) Guide Roller Adjustment X Value Adjustment Reel Disk Height Adjustment Reel Disk Height Adjustment Playback Torque, Back Tension Torque During Playback Used to connect the test point of SERVICE and GROUND
How to use the Servicing Fixture
1.
Unplug the connector CP757 and CP353, then remove the TV/VCR Block from the set.
2.
Remove the Operation PCB from the set, then connect it with the Syscon PCB. If necessary, connect CP353. (Front A/V Jack Input Terminal)
3.
Short circuit between TP1001 and Ground with the cable JG154.
(Refer to MAJOR COMPONENTS LOCATION GUIDE)
4.
The EOT, BOT and Reel Sensor do not work at this moment. At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
C5-1
Page 24
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work.
••Place an object which weighs between 450g~500g on the Cassette Tape to keep it steady when you want to make the tape run without the Cassette Holder. (Do not place an object which weighs over 500g.) When you activate the deck without the Cassette Holder, short circuit between TP1001 and GND. (Refer
to ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE) In this condition the BOT/EOT/Reel Sensor will
not function.
CONFIRMATION AND ADJUSTMENT OF REEL
1-1:
DISK HEIGHT
1.
Turn on the power and set to the STOP mode.
2.
Set the master plane (JG022) and reel disk height adjustment jig (JG024A) on the mechanism framework, taking care not to scratch the drum, as shown in Fig. 1- 1-A.
3.
While turning the reel and confirm the following points. Check if the surface "A" of reel disk is lower than the surface "B" of reel disk height adjustment jig (JG024A) and is higher than the surface "C". If it is not passed, place the height adjustment washers and adjust to 10(+2, -0)mm.
4.
Adjust the other reel in the same way.
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
Set to the PLAY mode.
2.
Adjust the adjusting parts for the Tension Arm position so that the Tension Arm top is within the standard line of Main Chassis.
3.
While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Fig. 1-2-A
Adjusting parts for the Tension Arm position
Tension Band
Master Plane (JG022)
10(+0.2, -0)mm
Master Plane (JG022)
Height Adjustment Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
Reel Disk Height Adjustment Jig (JG024A)
Reel Disk Height
Reel Disk
Adjustment Jig (JG024A)
(B)
(A)
Fig. 1-1-A
(C)
Fig. 1-1-B
The Tension Arm top will move to the inside direction of the Main Chassis.
Bend
The Tension Arm top will move to the outside direction of the Main Chassis.
Fig. 1-2-B
1-3: CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK
Load a video tape (T-120) recorded in standard speed
1. mode. Set the unit to the PLAY mode. Install the tentelometer as shown in Fig. 1-3. Confirm that
2. the meter indicates 20 ± 2gf in the beginning of playback.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
After confirmation and adjustment of Tension Post position (Refer to item 1-2), load the cassette type torque tape (JG100A) and set to the PLAY mode.
2.
Confirm that the right meter of the torque tape indicates 50~90gf•cm during playback in SP mode.
3.
Confirm that the left meter of the torque tape indicates 25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
P1 Post
Guide Roller
Fig. 1-3
D1-1
Page 25
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Install the Torque Gauge (JG002F) and Adapter (JG002B)
1. on the S Reel. Set to the Picture Search (Rewind) mode.
(Refer to Fig.1-4-B)
Then, confirm that it indicates 120~180gf•cm.
2.
NOTE
Install the Torque Gauge on the reel disk firmly. Press the REW button to turn the reel disk.
1-5: CONFIRMATION OF REEL BRAKE TORQUE
(S Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop
1. mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the S Reel.
2. Install the Torque Gauge (JG002F) and Adapter
3.
(JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
4.
(T Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop
1. mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the T Reel.
2. Install the Torque Gauge (JG002E) and Adapter
3.
(JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise.
Then, confirm that it indicates 30~50gf•cm.
4.
The position at FF mode.
Pinch Roller Block
Stop at this position.
Cassette
The position at STOP mode.
Capstan DD Unit
Cassette Holder Ass'y
Opener
Fig. 1-4-A
NOTE
If the torque is out of the range, replace the following parts.
Check item
1-4 1-5
S Reel side:
Replacement Part
Idler Ass'y/Clutch Ass'y
S Reel/Tension Band/Tension Connect/Tension Arm Ass'y
T Reel side:
T Reel/T Brake Band//T Brake Spring/T Brake Arm
2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the factory. Adjustment is not necessary as usual. When you replace the parts of the tape running mechanism because of long term usage or failure, the confirmation and adjustment are necessary.
2-1: GUIDE ROLLER
Playback the VHS Alignment Tape (JG001 or JG001B).
1.
(Refer to SERVICING FIXTURE AND TOOLS)
Connect CH-1 of the oscilloscope to TP4001 (Envelope)
2.
and CH-2 to TP1002 (SW Pulse). Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center. Trigger with SW Pulse and observe the envelope. (Refer
4.
to Fig. 2-1-A)
When observing the envelope, adjust the Adjusting
5.
Driver (JG005) slightly until the envelope will be flat. Even if you press the Tracking Button, adjust so that flatness is not moved so much. Adjust so that the A : B ratio is better than 3 : 2 as shown
6.
in Fig. 2-1-B, even if you press the Tracking Button to move the envelope (The envelope waveform will begin to decrease when you press the Tracking Button). Adjust the PG shifter during playback.
7.
(Refer to the ELECTRICAL ADJUSTMENTS)
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
Torque Gauge/Adapter (JG002F/JG002B)
S Reel
Torque Gauge/Adapter (JG002E/JG002B)
T Reel
Fig. 1-4-B
D1-2
CH-1 Envelope (TP4001)
CH-1 Track
CH-2 SW Pulse (TP1002)
Entrance Exit
Max
A
A : B 3 : 2
B
CH-2 Track
Fig. 2-1-A
Max
Fig. 2-1-B
Page 26
MECHANICAL ADJUSTMENTS
CONFIRMATION AND ADJUSTMENT OF AUDIO/ CONTROL HEAD
When the Tape Running Mechanism does not work well, adjust the following items.
1.
Playback the VHS Alignment Tape (JG001 or JG001B) .
(Refer to SERVICING FIXTURE AND TOOLS)
2.
Confirm that the reflected picture of stamp mark is appeared on the tape prior to P4 Post as shown in Fig. 2-2-A. a)
When the reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared.
b)
When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a).
3.
Turn the screw 2 to set the audio level to maximum.
4.
Confirm that the bottom of the Audio/ Control Head and the bottom of the tape is shown in Fig. 2-2-C. c)
When the height is not correct, turn the screw 3 to adjust the height. Then, adjust the 1~3 again.
Audio/Control Head
Reflected picture of Stamp Mark
P4 Post
2-3:2-2:
TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
1.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
2.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1)
3.
Confirm and adjust the Audio/Control Head.
4.
(Refer to item 2-2)
Connect CH-1 of the oscilloscope to TP4001, CH-2 to
5.
TP1002 and CH-3 to HOT side of Audio Out Jack. Playback the VHS Alignment Tape (JG001S or
6.
JG001T). (Refer to SERVICING FIXTURE AND TOOLS) Press and hold the Tracking-Auto button on the remote
7.
control more than 2 seconds to set tracking to center. Set the X Value adjustment driver (JG153) to the 4 of
8.
Fig. 2-2-B. Adjust X value so that the envelope waveform output becomes maximum. Check if the relation between Audio and Envelope waveform becomes (1) or (2) of Fig. 2-3.
Envelope
(1) CH-3 Audio
(2)
Audio/Control Head
3
2
Audio/Control Head
Tape
Stamp Mark
1
4
Fig. 2-2-A
Fig. 2-2-B
0.25±0.05mm
Fig. 2-2-C
Fig. 2-3
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
Connect CH-1 of the oscilloscope to TP1002 and CH-2 to
1. the Hi-Fi Audio Out Jack. Playback the VHS Alignment Tape (JG001P or JG001Q) .
2.
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote
3. control more than 2 seconds to set tracking to center. Press the Tracking Up button and count number of steps
4. which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). Press and hold the Tracking-Auto button on the remote
5. control more than 2 seconds to set tracking to center. Press the Tracking Down button and count number of
6. steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). If the difference are more than 3 steps, set the X Value
7. adjustment driver (JG153) to 4 of Fig. 2-2-B. Change the X Value and adjust it so that the value becomes within 2 steps.
D1-3
Page 27
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
3
4
5
6
2
1
8910
1. Tension Connect
2. Tension Arm
3. Guide Roller
4. Audio/Control Head
5. X value adjustment driver hole
6.
P4 Post
7.
T Brake Spring
8.
T Reel
9.
S Reel
10.
Adjusting parts for the Tension Arm position
7
D1-4
Page 28
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies.
CAUTION
Use an isolation transformer when performing any service on this chassis.
Before removing the anode cap, discharge electricity because it contains high voltage.
When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors.
When replacing IC's and transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
On-Screen Display Adjustment
Unplug the AC plug for more than 5 seconds to set the
1. clock to the non-setting state. Then, set the volume level to minimum. Press the VOL. DOWN button on the set and the
2. Channel button (9) on the remote control simultaneously to appear the adjustment mode on the screen as shown in Fig. 1-1.
2. BASIC ADJUSTMENTS (VCR SECTION)
2-1: PG SHIFTER
1.
Connect CH-1 on the oscilloscope to TP1002 and CH-2 to pin 4 of CP1003.
2.
Playback the alignment tape. (JG001A)
3.
Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center.
4.
Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. If the indicator REC disappears, adjustment is completed.
(If the above adjustments doesn't work well:)
5.
Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears.
6.
When the REC indicator is blinking, press both VOL. DOWN button on the set and the channel button (4) on the remote control simultaneously and adjust the Tracking +/- button until the arising to the down of Head Switching Pulse becomes 6.5 ± 0.5H.
(Refer to Fig. 2-1-A, B)
7.
Press the Tracking Auto button.
TV
00 OSD 15
Use the Channel UP/DOWN button or Channel button
3. (0-9) on the remote control to select the options shown in Fig. 1-2. Press the MENU button on the remote control to end
4. the adjustments.
FUNCTION
NO.
OSD H
00
CUT OFF
01
RF AGC DELAY
02
VIF VCO
03
H VCO
04
H PHASE
05
V SIZE
06
V SHIFT
07
R DRIVE
08
B DRIVE
09
R CUT OFF
10
G CUT OFF
11
B CUT OFF
12
FUNCTION
NO.
BRIGHTNESS
13
CONTRAST
14
COLOR
15
TINT
16
SHARPNESS
17
FM LEVEL
18
LEVEL
19
SEPARATION 1
20
SEPARATION 2
21
TEST MONO
22
TEST STEREO
23
X-RAY TEST
24
Fig. 1-1
Fig. 1-2
CH-2
6.5H
CH-1
Fig. 2-1-A
CH-2
CH-1
6.5H
Fig. 2-1-B
2-2: VCO FREERUN
1.
Place the set with Aging Test for more than 10 minutes.
2.
Receive the VHF HIGH.
3.
Disconnect the Antenna while receiving the VHF HIGH and set to the Noise screen.
4.
Once turn off the Power and turn on the Power again.
5.
Approxi. 3 seconds later, input the Antenna again.
6.
Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351.
7.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO".
8.
Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V.
9.
After the 2.5V adjustment, countdown the VIF VCO step No. by 1 step with the VOL. DOWN button.
D2-1
Page 29
ELECTRICAL ADJUSTMENTS
2-3: RF AGC DELAY
1.
Receive the VHF HIGH (63dB).
2.
Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF AGC DELAY".
4.
Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.9V ± 0.15V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
Connect the digital voltmeter to the TP601.
2.
Set condition is AV MODE without signal.
3.
Using the remote control, set the brightness and contrast to normal position.
4.
Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
2-5: CUT OFF
1.
Adjust the unit to the following settings. R CUT OFF=128, G CUT OFF=128, B CUT OFF=128, BRIGHTNESS=128, CONTRAST=100
2.
Place the set with Aging Test for more than 15 minutes.
3.
Set condition is AV MODE without signal.
4.
Using the remote control, set the brightness and contrast to normal position.
5.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF".
6.
Adjust the Screen Volume until a dim raster is obtained.
2-6: WHITE BALANCE NOTE:Adjust after performing CUT OFF adjustment.
1.
Place the set with Aging Test for more than 15 minutes.
2.
Receive the color bar pattern.
3.
Using the remote control, set the brightness and contrast to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R CUT OFF".
5.
Using the VOL. UP/DOWN button on the remote control, adjust the R CUT OFF.
6.
Press the CH. UP/DOWN button on the remote control to select the "R DRIVE", "B DRIVE", "G CUT OFF" or "B CUT OFF".
7.
Using the VOL. UP/DOWN button on the remote control, adjust the R DRIVE, B DRIVE, G CUT OFF or B CUT OFF.
8.
Perform the above adjustments 6 and 7 until the white color is looked like a white.
2-7: FOCUS
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Turn the Focus Volume fully counterclockwise once.
4.
Adjust the Focus Volume until picture is distinct.
2-8: HORIZONTAL PHASE
1.
Receive the center cross signal from the Pattern Generator.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE".
4.
Press the VOL. UP/DOWN button on the remote control until the right and left screen size of the vertical line becomes the same.
2-9: VERTICAL SHIFT
1.
Receive the center cross signal from the Pattern Generator.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT".
4.
Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shadow mask.
2-10: VERTICAL SIZE
1.
Receive the cross hatch signal from the Pattern Generator.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE".
4.
Press the VOL. UP/DOWN button on the remote control until the rectangle on the center of the screen becomes square.
5.
Receive a broadcast and check if the picture is normal.
2-11: SUB BRIGHTNESS
1.
Receive the monoscope pattern. (RF Input)
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (13) on the remote control to select "BRIGHTNESS".
4.
Press the VOL. UP/DOWN button on the remote control until the white 10% is starting to be visible
5.
Receive the monoscope pattern. (Audio Video Input)
6.
Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
2-11: SUB CONTRAST MANUAL
1.
Receive the color bar pattern. (RF Input)
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (14) on the remote control to select "CONTRAST".
4.
Press the VOL. UP/DOWN button on the remote control until the contrast STEP No. becomes "100". Receive the color bar pattern. (Audio Video Input)
5.
Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
D2-2
Page 30
ELECTRICAL ADJUSTMENTS
2-13: SUB TINT
1.
Receive the color bar pattern. (RF Input)
2.
Connect the oscilloscope to TP801.
3.
Using the remote control, set the brightness, contrast, color and tint to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT".
5.
Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line.
(Refer to Fig. 2-2)
6.
Receive the color bar pattern. (Audio Video Input)
7.
Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5.
"A"
Fig. 2-2
2-14: SUB COLOR
1.
Receive the color bar pattern. (RF Input)
2.
Connect the oscilloscope to TP803.
3.
Using the remote control, set the brightness, contrast, color and tint to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (15) on the remote control to select "COLOR".
5.
Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope.
6.
Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110% of the white level. (Refer to Fig. 2-3)
7.
Receive the color bar pattern. (Audio Video Input)
8.
Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~6.
2-15: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum.
(Refer to Fig. 2-4)
TV
00 OSD 15
A
2-16: SUB SHARPNESS
1.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (17) on the remote control to select "SHARPNESS".
2.
Check if the step No. of SHARPNESS is "40".
3.
Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 1, 2.
2-17: H VCO
1.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "H VCO".
2.
Check if the step No. of H VCO is "4".
B
Fig. 2-4
White 0%
White 100%
100%
Red Level
Fig. 2-3
D2-3
Page 31
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE
CP1003
TP1001
TP4001
TP1002
FB401
FOCUS VOLUME SCREEN VOLUME
TP601
TU601
CP351
SYSCON PCB
J801
VR502
TP801
TP803
CRT PCB
D2-4
Page 32
ELECTRICAL ADJUSTMENTS
4.PURITY AND CONVERGENCE ADJUSTMENTS
NOTE
1.
Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments.
2.
Place the CRT surface facing east or west to reduce the terrestrial magnetism.
3.
Turn ON the unit and demagnetize with a Degauss Coil.
4-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 4-1) If the deflection yoke and magnet are in one body, untighten the screw for the body.
2.
Receive the green raster pattern from the color bar generator.
3.
Slide the deflection yoke until it touches the funnel side of the CRT.
4.
Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets.
5.
Switch the color bar generator from the green raster pattern to the crosshatch pattern.
6.
Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets.
7.
Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
8.
Adjust the crosshatch pattern to change to white by repeating steps 6 and 7.
4-2: PURITY NOTE
Adjust after performing adjustments in section 4-1.
1.
Receive the green raster pattern from color bar generator.
2.
Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide.
3.
Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green.
4.
Confirm red and blue colors.
5.
Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw.
DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW
4-3: STATIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-2.
1.
Receive the crosshatch pattern from the color bar generator.
2.
Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets.
3.
Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
4-4: DYNAMIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-3.
1.2.Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left.
(Refer to Fig. 4-2-a)
Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke.
(Refer to Fig. 4-2-b)
R G B
R G B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
WEDGE
WEDGE POSITION
R G B
Fig. 4-2-a
WEDGE
WEDGE
Fig. 4-2-b
R G B
6 POLE MAGNETS 4 POLE MAGNETS PURITY MAGNETS
Fig. 4-1
D2-5
Page 33
TV BLOCK DIAGRAM
MICON/
OPERATION/
DECK
AT+5V_BACK UP
Y/C/AUDIO/
CCD/
HEAD AMP/
IN/OUT
SCL SDA
AT+12V
TU_AUDIO TU_VIDEO
Y/C_AUDIO
TU601
1 4
5
11
SAW FILTER CF601
1
V. OUTPUT IC IC401 AN5522
THERMAL
Q602, Q603
REG.
Q601
BUFFER
CHROMA IC IC601 M61206FP
62
RF AGC OUT
1
VIF IN
64
VIF IN
54
60
AFT OUT
31
ACL/ABCL
63 48 56
IF AGC FILTER
IF AGC
52
EXT AUDIO IN
VIF APC FILTER
55 41
57
VREG VCC
VIF VIDEO OUT
5.7V REG OUT (FOR CPU)
Q606
NC
33
42
MCU RESET
REG.
Q604, Q605
REG.
39 46
8.7V REG OUT
13
5V REG
SW REG CONT
AT+12V
AT+5V
53
AUDIO OUT
SDA
SCL
FM DIRECT OUT
POWER ON CONT
V RAMP FEED BACK
FAST BLK
R OUT G OUT B OUT
V OUT
V PLUSE OUT
1
50 10
5 27 14
15 16
17 29
21
AMP
VCC
2
PROTECTION
PUMP UP
3
5
Q407
H-CONTROL
SW
7
Q405
H-DRIVE
Q406
H. OUTPUT
FB401
1
COL
2
+B
6
E180
7
ABL
9
AFC
10
HEA
E180V
3
HV
F S
H_CTL
J801
F 8
3
7 9
MICON/ OPERATION/ DECK
DY
V801
CRT
Q804
BLUE AMP
Q806
RED AMP
Q608
CUT OFF SW P. CON+8V
MICON/
OPERATION/
DECK
L503
DEGAUSS COIL
AC IN
E-1
X-RAY
X-RAY_TEST
2
2
1
1
Q507
FEED BACK
VR502
+B ADJ
F501
SW.
Q404
Q403
TH501
SW.
SW.
D501
RECTIFIER
FEED BACK
Q501 TLP621(GR)
Q511
SWITCHING
Q510
SWITCHING
T501
8
5
CHROMA APC FILTER
35
11 13
14
16
3
X' TAL
H. PLUSE OUT
32
12
X602
3.579545MHz
F502
5V REG
IC 501 KIA7805P1
FBP IN
6
POWER_FAIL
7
Q611
POWER FAIL
AT+12V UNREG+8V
POWER_FAIL
H OUT
SW.
P. CON+5V
SOUND AMP IC IC351 AN7511
2
5
1
Q805
GREEN
AMP
Q609
POWER ON
SW.
J351
6
8
4
VCR_POWER-H TV_POWER-H TV_A_MUTE
HEAD JACK
CD352
SP+ SP–
SP351 SPEAKER
MICON/ OPERATION/ DECK
TV_POWER-H
VD HD
OSD_BLK OSD_B OSD_R OSD_G
AFT_M
MICON/ OPERATION/ DECK
E-2
Page 34
Y/C/AUDIO/CCD/HEAD AMP/IN/OUT BLOCK DIAGRAM
X4001
3.579545MHz
TV
FE HEAD
HEAD
AUDIO
CONTROL
CYL
CP4001
1
SP-CH2 (L)
2 3
SP_COM
SP-CH1 (R)
4
VD
CP4003
FE HEAD (HOT)
1 2
FE HEAD (GND)
CP4002
6
AUDIO PB
5
AUDIO REC
4
CTL+
CTL-
3
2
AE HEAD(-)
AE HEAD(+)
1
P. CON+5V
Q4011
BUFFER
Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71200M-MPB
NC
67
NC
66 62
GND
65 72
73 74
9
7
8
6
COIL, BIAS OSC T4001
5
6
4
HA
P
R
P P
R
P
REC AMP
AUTO BIAS
2
3
1
L
H
Q4005
BIAS CTL
Q4006
BIAS OSC
50 49
VX01
H L
11
EQ
AMP
Q4012
BUFFER
PB.EE
3
41
C-LPF
4
PLL
5
P. CON + 5V
43
3.58M BPF2
Main CONV
ACC DET
2
LINE AMP
MUTE
10
B-UP AMP
3.58M BPF1
80
REC APC
R
LPF
76
38
VSS
P
REC APC
AGC
NYR/COMB
Q4010
BUFFER
37
CLAMP AUTO-BIAS
Y/C_CLK
Y/C_DATA
Y/C_CS
H. SW
VCR_A_MUTE
ENV. DET V.REC_ST-H
DUMMY_V. SYNC SD_VIDEO
SD_SYNC
MICON/ OPERATION/ DECK
MICON/ OPERATION/ DECK
AUDIO
53 54
55
36 39 57 58 59
24 26 25
Q4009
BUFFER
Q4007
SYNC IN
CCD
VCA
VIDEO AGC
QV-QH
1
32
30
NC
2 3
12
3
28
ALC
R P
UOT
SERAIL DECODER
SYNC SEP
MUTE HA SW
60B
SYNC SEP
C-ROT
RF-SW IN
ENV DET
TU_VIDEO TU_AUDIO
Y/C_AUDIO
TV
E-3
Q4001, Q4002
AUDIO PB SW
Q4003
SW
FRONT_AUDIO
FRONT_VIDEO CTL+ CTL-
MICON/ OPERATION/ DECK
E-4
Page 35
MICON/OPERATION/DECK BLOCK DIAGRAM
TV
VCR_POWER_H
CP1004
1
CAPSTAN DD UNIT
4
5 9
10 11 12
Y/C/AUDIO/CCD/
HEAD AMP/
IN/OUT
AT+5.6V
P. CON+5V
H_CONTROL
X-RAY_TEST
CAP_FG CAP/M F/R
I LIMIT
CAP_CTL LDM_CTL
CTL_FG/PG
CYL_CTL
DUMMY_V. SYNC
AT+5.6V
D1003
SW1001
14
2
3
4
1
32
3
1
4
2
Q1013
EOT SENSOR
Q1024
LED DRIVER
MS_SEN A
Q1009
MS_SEN B
Q1003
REEL SENS.
Q1005
TIMER SYSCON MICON IC IC1001 OEC7071A
TAB SW
50
1
MSSEN-A
MSSEN-B
2
REEL-T
80
24
H_CONTROL
41
X-RAY_TEST
27
VCR-POWER
12
I LIMIT
CAP-PWM
76
CAP-FG
87 11
CAP-FWD
20
CTL
90
FG/PG DRUM-PWM
77
13
DUMMY-V.SYNC
3
EOT
61
CENTER LED
RESET-L
POWER_FAIL_L
X-OUT(12MHz)
X-IN(12MHz)
XC-OUT(32KHz)
XC-IN(32MHz)
CTL-
V-REC-ST-H
CVIN
VIDEO-H. SW
SDATA
SCLK
VIDEO ENV
VCR_A_MUTE
IIC-DATA1
IIC-CLK1
CTL AMP-OUT
FF/REW-L
AFT(MONI) OSD OUT1
V-SYNC
H/C-SYNC
KEY 1
TV-POWER
SYSTEM RESET IC IC1003 R3111N311A/C-TR
EEP ROM IC
SDA
5 6
IC1099 S-24C04BDP-LA
SCL
POWER ON/OFF
Q1023
X_RAY_SW
REC/OTR STOP/EJECT PLAY
AUDIO L
VIDEO
J701
3
1
4
2
FF/CUE
POWER FAIL2
FRONT_VIDEO
FRONT_AUDIO
CTL+ CTL­V. REC_ST_H SD_VIDEO
SD_SYNC H. SW
Y/C_DATA
Y/C_CLK
Y/C_CS ENV_DET
VCR_A_MUTE
X_RAY SDA
SCL
OSD_R OSD_G OSD_B AFT_M OSD_BLK
VD HD TV_A_MUTE
TV_POWER_H
REW/REV
Y/C/AUDIO/CCD/ HEAD AMP/ IN/OUT
TV
X1001 12MHz
X1002
32.768KHz
Q1004
1 OUT
34
85 39
38 36
35
95CTL+ 94 66 56
18 68 70
69 CS
6
81
72
71 97
FF/REW_SW
73
R
64
G
63
62
B
7 60 59 58 82TV_A_MUTE
9
28
E-5
Q1011
BOT SENSOR
KEY 2
4
BOT
REMOCON-IN
REC LED
T-REC LED
10
14
30
29
Q1007
REC LED SW
(AI)
Q1008
ON TIM/T-REC
LED SW(TO)
Q4204
TV POWER
SW
OS753
321
REC/OTR T-REC
D793
D791
CH DOWN
D792
CH UP VOL. UP VOL. DOWN
AT+5V
POWER/PLAY
E-6
Page 36
PRINTED CIRCUIT BOARDS
OPERATION
SOLDER SIDE
W812
W814
W815
J351
CD757
R351
W003
W805 W811
R350_1
W009
SW751
C382
CD351_1
SW797
R777_1
SW796
W006
W007
SW799
SW798
R775_1
R776_1
SW791
W008
R772_1
W002
W001
R773_1 R774_1 R771_1
R778_1
C755_1
SW795SW793SW792SW794
OS753
W005
W004
R766
D793
R793_2
J701_1
R754_2
CD352
D791
F-1
F-2
Page 37
PRINTED CIRCUIT BOARDS
SYSCON/CRT (INSERTED PARTS)
SOLDER SIDE
CD852
R1051
C1003_1
SW1001
W259
C1021
Q602
D608
W238
W233
C643
D1001
W237
W236 W257
W262
C1058
W276
W255 W254
W272
Q804_1
Q805_1
CP851B
W234
W246
W296
R1066
X1001
W250
W249
W248
W267
W266
L801
W801
W245
W242
W253
W268
Q603
W243
X1002
Q1003
W240
TP803
S107Y
Q806_1
W247
W172W244
W166
W239
L1001
W270
R810
Q1005
W176
W269
Q1009
W163
W200
IC1099
W150
W134
W182
W273
R820
C801
W177
TP801
TP802
W836
W139
W128
W144
W125
W187
W203
W202
W232
W215
CP757_2
W805
R1010
W127
W185
W180
W287
W806
W174
W285
W188
W151
W173
W201
W912
W124
W170
W161
W199
R4016
W217
W148
W286
W164
W207
W193
W230
J801_1
W147
W131
W179
W159
W211
W198
R807 R808
W143
W850
W158
C1020
R1016
W825
W213
R802
R805
W146
W288
W157
C1015
W191
W130
W155
W228
W141
D609
W186
W154
C1016
W197
W227
CP1003
CP801
S818Y
W142
W178
W153
W209
C1018
W196
W229
W137
W145
R650
D1003
W156
R1028
W190
W220
W214
W160
W231
Q1011
W149
D611
D620
W162
W225
R666
D619
W165
L4009
W218
W126
W152
W212
W195
W194
R4048
W184
W181
W167
W208 W206
W205
W192
W189
W123
W135
W129
D621
W169
R4029
W221
Q1013
W138
W168
W210
W222
D605
W051
W069
W090
W171
W100
C4042
S825Y
W223
TP1001
C1032
W077
W874
W175
R4014
W078
W101
R4028
R4032
W098
W095
W120
C4047
W116
C665
C1001
W074
W140
W086
W888
C4045
W114
CP353_1
W060
R655_1
L1003
R1008
D610
W084
C4053
W117
W115
W110
W059
S107X
W055
CP1001
W066
L612
C655
W087
C4046
L4005
CP4003
W113
W057
D615
W072
W065
W081
D4003
W813
C1007
W056
B602
W064
W092
W080
C4010
C4049
X4001
W109
W054
C659
C4035
W122
TP4001
W076
C687
W085
W897
C4031
C4034
C4051
C4052
W280
R1064
W075
W827
C4027
TP1002
W863
R404
C664
W097
W862
X602
C4048
W119
W814
W279
W895
W071
Q4006
W082
C4030
C351
C649
W088
C4058
W118
IC351
W061
S818X
W848
W067
Q606
R668
L4003
Q4005 R4004
W104
C356
W828
W111
D409
D613
CF601
W068
B604
C648
C4012
C4023
C4065
W073
W093
R612
W108
T4001
W106
W096
D612
W070
CF603
C652
W105
W103
C4067
C4062
W112
D408
D614
L607
CF604
R654
W089
C4002
C4004
CP4001_1
C4063
W099
W121
C355
W808
W091
W915
CP851A
C641
C644
W094
CP4002
Q4002
C4009
L4006
W063
C627
W107
W020
R672
L601
Q605
W027
L4001
W834
C632
Q4001
R4007
R4006
W047
W847
R456
W018
W878
C624
W022
Q604
C4025_1
W046
W016
W829
W029
W048
W282
W030
W024
W044
S825X
D513
C433
D601
W021
D602
W032
C354
W019
C417
R607
W031
W045
W040
R522
D412
C431
T401
W917
W858
C534
C438
Q405
W035
D515
W042
S802X
W857
W872
W041
D508
W049
D413
R460
C418
IC501
HS402
W023
R640
R651
W028
W026
R508
R512
C511
W884
R422
R503
W274
S101A
R500
W816
R402
W037
D501
Q406
C521
C517
C519
W291
S102A
R440
W823
B402
CP401
R553
C432
B403
W824
R554
D405
W811
W817
C402
R453
C424
W890
W820
L401
FH504
W033
TP601
C523
W290
D510_1
B503
C524
D519
W043
D505
C516
F501 FH501FH502
5A125VOR250V
FH503
F502
D407
C541
C522_1
S802Y
D512
W832
C423
D507
W283
VR401
W034
C518
C506
R450
R447
C422
W036
VR502
W856
D517
D514
W001
D402
R490
W840
C451
R449
R408
2.5A125VOR250V
W901
R529_1
Q507
R532
R533
D528
C505
T501
CP504
W014
D404
R419
W277
R505
W838
L502
D403
D411
W871
C530
CP505
TH501_1
D401
W007
C515
R421
W003
IC401
L603
C406
D533
R511
W006
R517
B501
CP502
R501
FB401
W004
D536
D535
TU601
R528
D530
C405
HS401
C612
IC502
D537
C535
R514
W807
C610
D521
D534
C407
C537
W012
R415
W008
W005
R524
D520
R531
R502
W002
W013
C509
C507
C508
W009
W866
Q511
W011
W853
R423
D410
CP351_1
C539
HS501_1
Q510
D518
F-3 F-4
CD501
Page 38
PRINTED CIRCUIT BOARDS
SYSCON/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
C510
R527
C605C604
C536
C532
R525
C602
R504R506R510
C554
R516
R507
R530
Q505 R513
C631
W025
R4053
W880
R4052
C4020
R4001
C4069
C4015
C4021
R4051
C4019
C4016
R4003
R4002
Q4003
R4039
C4064
61
R4064
C4055
R4042
R4012
R4010
C4005
R4015
C4066
R4038
41
IC4001
R610
R352
C301
C4059
1
R4011
C4006
R357
W818
R353
R4041
C4061
W887
R4043
21
C4074
R4020
R669
Q4012
R4055
C4028
R359
R4017
R4018
C4060
R4035
R4060
C4032
C4029
R4034
C4037
R4021
R4019
C660
Q4010
R4033
R4062
R4068
C4036
R4024
C4033
R4037
C357
C4054
C4024_1
R4023
R4022
R4057
C4014_1
R676 C673
R4201
C4050
C4044
R4025
R4058
R4056
C4038
C4075
R638
C4057
R4054
W873
C4076
Q4007
Q4011
R4059
C1042_2
Q4009
C4041
R4061
R1025
R4045
R1011
R4044
Q1023
R1075
C1089
R4047
R1035
Q1024
C1028
R1017
R1029
R4026
R1021
R1012
Q1007
C4043
R1007
C1065
C1019
R1013
C1009
R1042
C1029
R1009
Q1004
Q1008
C1004
C1010
C1023
R1020
R1053
C656
R1078
C1062
C1037
C1022
R1033
R1036
R1044
C1084
R1048
C1060
R1034
C1034
R1045
R1038
C1013
C1027
C4206_1
W903
C1061
R1031
C1035
C1031
C1038 C1071
81
C1025
C1039_1
C1056
R1032
IC1001
1
R1001
R1030
51
C1082
R1070
C1046
R1040
C1047
C1026
31
R1005
C1040
C1083
R1047
C1048
C1049
R1046
R1018
C1043
C1050
C1068
R401
R411
R414
R416
R413
R441
C416
W907
R420
C623
R439
R444
Q404
R616
R609
Q601
C527
R618
R628
W284
R620
R601
W865
R442
C674
R608
C672
R625
R622
C640
R665
C618
R615
C650
C636
R633
C625
Q609
C654
R644
49
C622
C651
C634
33
IC601
R636
Q407
R614
C621
Q608
R1063
R1054
R1022
R1087
R1055
R1052
R1050
R1019
R1083
C805
C811
R813
R816
R663
C667
R815
C810 R812
R814
W810
R811 C809
R1049
IC1003
C1017
Q403
R627
R646
C688
R647
17
1
Q611
Q612
C675
R626
C629
R656
C647
C639
R658
R624
R648
R603
R657
R639 R643
C653
W846
R649 R660
R631
R635
R641
R613
C645
C630
R652
C658
R1073
R642
R659
W894
R602
F-5
F-6
Page 39
ABC D E F GH
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
8
H.SW
R4047
Y/C_CS
12K
ENV_DET
H.AMP_SW1
VCR_A_MUTE
100K
R4044
12K
R4054
C4069
R4045
18K
0.1 F
7
FROM POWER
P.CON+5V
GND
W858
NC
2.7K
R4051
6
0.5
2.2
OUT
C4016
0.068 B
C4019
C4015
0.047 F
0.047 F
5
P.CON+5V
FROM/TO CYL MOTOR
4
CP4001_1
TOC-C04X-B1
4
SP-CH1 (R)
3
2
SP-CH2 (L)
1
SP COM
TU_AUDIO
P.CON+5V DUMMY_V.SYNC
FRONT_AUDIO P.CON+5V
3
FROM/TO HEAD AUDIO CONTROL
CP4002
IMSA-9604S-06Z14
AUDIO PB
6
AUDIO REC
5
CTL+
4
CTL-
3
AE HEAD(-)
2
AE HEAD(+)
2
1
TO FULL ERASE HEAD
CP4003 TMC-T02X-E1
FE HEAD(GND)
2
FE HEAD(HOT)
1
GND
HOT
P.CON+5V SD_SYNC
V.REC_ST_H
CTL+
CTL-
AUDIO PB SW Q4001
KTC3198
W880
AUDIO PB SW Q4002
KTC3198
1
L4001
22uH
0305
C4055
1F
C4009
4716V KA
R4007
C4012
39K 1/4W
R4006
47K 1/4W
R4053
6.8K
R4004
15 1/4W
226.3V KA
5.2 SW
0
Q4003
KRA103SRTK
5.3
R4001
560
0
R4002
0.7
0
0
0.7
0
10K
R4003
10K
5
0.022100V MKT
C4002
6
5
COIL,BIAS OSC
T4001
1626009
1
2
34
2206.3V KA
C4004
C4005
C4006
3.3K
0.01 F
R4010
0
0.015 B
C4023
R4015
R4052
8.2K
226.3V KA
L4003
100uH
0305
0
BIAS OSC
Q4006
KTC3203_Y
0
2.2
R4064
6.8K
C4020
0.1 F
C4021
0.1 F
Y/C/A/CCD/H.AMP IC
IC4001
LA71201M-N-MPB
BIAS CTL
Q4005
KTA1266
5.20
5.2 R4011
22K
C4010
476.3V KA
R4012
CAUTION: DIGITAL TRANSISTOR
COMP
AUDIO
ENV
C-ROT
C-GND
MUTE
DET
KILL
616263646566676869
DET
0
HA GND
4.0
CHROMA
DET
1.8
ACC DET
0.7
0.7
NC
0.7
NC
5.0
HA VCC
RF-SW
IN
HA SW
P
R
H
P
L
1.7
ALC
ALC DET
SP,LP
6.8K
8.2K
AMP
4
R4019
330K
+
R
P
PB,EE
EQ
REC:LP<EP PB:EP
C4031
1.8
820
70717273747576777879
0
HA
PRE GND
2.0
2.0
2.0
0
A-GND
2.2
4.9
A-VCC
2.3 NC
0
2.0
2.2 2.2 2.3 2.2 2.2 2.5 2.3 2.2 2.3 2.4 5.0 1.0 1.0 1.7 1.4 0
C4074
0.01 F
W887
C4025_1
2206.3V KA
H
P
L
R
P
1 2 3
Vref
2.3V
3
1 10111213141516
0.1 F
C4028
1K
R4055
336.3V KA
C4027
R4017
R4018
C4029
0.01 F
1016V KA
C4030
R4056
4.7M
150
R4020
W897
SEARCH_AUDIO
NOTE:
ABC D E F GH
(SYSCON PCB)
Y/C_CLK
Y/C_DATA
P.CON+5V
0305
47uH
L4006
476.3V KA
C4063
150V KA
C4062
C4064
8.2K
R4039
X4001
C-VCC
SERAIL
DECODER
BGA
C4032
3.350V KA
R4057
4.9
RP
C-LPF
PB,EE
7
6.8K
R4058
3.58M BPF2
Main
B-UP
CONV
AMP
ACC AMP
ACC
DET
DETAIL
ENH
NL
EMPHA
LINE AMP
P
REC
MUTE
AMP
AUTO BIAS
VREF
4.21M BPF
Sub
CONV
LPF
8809
470
R4022
0.0033 B R4021
22K
C4033
820PB
BUFFER
Q4011
2SC2412K
0.6
0
2.7K
C4075
C4034
4
R4059
10M
150P CH
4.725V KA
R4061
VD
THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
2
0.022 B
100CT3R502
VX01
REC APC
P
R
RPPP
R
CLAMP
R-EQ TEST
REC
FM-EQ
FM
R
AGC
PHASE
fo-ADJ
10M
R4041
1.8K
C4065
PB
APC
BEFORE
AFTER
R
P
P
NL
EMPHA
FM
MOD
NORMAL
EQ
33K
R4023
C4076
P.CON+5V
R4042
320FH
VCO
P
PHASE
EQ
Q-ADJ
R4024
R
REC AFC
R
DOUBBLE
PB
FM EQ
4.0
150V KA
C4066
820
BGA BGA
Y-LPF
LIM
VHS
NC
V.ENV
TP4001
5.6K
0.1 F
R4037
BUFFER
Q4012
2SC2412K
R4043
0.022 B
SLD
PB-C
YNR/COMB
P
R
S-EQ
SOPB
3
C4035
390
5.0
3.4
C4067
NC
B
3.58M
FM
DEM
P
FM
AGC
FIL
AMP
BPF1
3.3K
CNC
B.D
P
DEEM
NC1
ALWAYS
PB
N.L.
R
P.CON+5V
0305
47uH
L4005
0.01 F
C4060
C4058
476.3V KA C4059
R4038
680K
0.1 F C4061
0.01 F
150V KA
W818
2.203.33.34.02.61.92.8
0.85.05.02.35.04.84.84.8000
414243444546474849550515253545556575859660
FBC
R
P
R
P
AUTO-BIAS
SYNC
SEP
V.SYNC
SEP
4.7K
0.1 2.2
390PB
C4037
PLL
CLAMP
VCA
CLAMP
1 2 3
S
DET
CLOCK
0
40
VSS
1.7
OUT
0
VSS
3.0
IN
2.8
VCA
3.1
3.1
2.6
VCP
C4048
C4049
1016V KA
1016V KA
BUFFER
Q4010
2SA1037AK
0 2.3
2.0
4.0
REG
4V
NC
30 31 32 33 34 35 36 37 38 39
2.0 C4050
2.3
BAL TC1
0.22 B
2.3
R4060 1.5M
1.6
AGC TC2
6DB
C4051
336.3V KA
R4032
100 1/4W
2.9
3.6
0
4.9
Y-VCC
B
R4025
1.5K
2.8
1.8
21 22 23 24 25 26 27 28 29
C4044
2.2M
R4068
2206.3V KA
0.1 F
C4045
0.1 F
C4038
180P CH
C4024_1
18P CH
VDD 4Fsc
5V
VIDEO
R
PB-C
Y/C
MIX
SUB LPF
MAIN
DE-EM
R
P
Y-GND
17 18 192 20
0 1.5
NC
150V KA
TIMMING OUT
DRIVER
CCD
AGC
1/2
QV/QH
MAIN
EMPHA
FIL
C4036
W873
D4003
0.047 B
C4014_1
Y/C_AUDIO
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1SS133
R4016
R4014
VCR_A_MUTE
2.2M 1/4W
470K 1/4W
PLAY_LED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1.7
C4052
C4053
C4054
0.1 F
C4046
3.350V KA
4.750V KA
4.750V KA
2.2K
R4033
0
5.0
R4029
47K 1/4W
R4034
82K
R4062
3.3M
C4057
1F
C4047
1016V KA
5.0
2SA1037AK
R4048
68 1/4W
R1025
100
BUFFER
Q4009
0.7
SYNC IN
Q4007
2SC2412K
R4028
8
7
FROM/TO IN/OUT
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
FROM/TO MICON
6
5
R4035
100K
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
ENV_DET
H.SW
SD_VIDEO
SD_SYNC
PLAY_LED
TU_VIDEO
FRONT_VIDEO
L4009
C4041
KA
6.3V
0.1 F
C4042
100
100uH
0305
1
P.CON+5V
4
Y/C_VIDEO
SD_VIDEO
W888
47K 1/4W
R4026
2.8
C4043
0.1 F
39K
FROM/TO CHROMA/IF
TU_VIDEO
TU_AUDIO
SD_VIDEO
Y/C_AUDIO
VD
3
0
PCB010 VMA227
2
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB)
TUNER VIDEO SIGNAL
1
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
G-2G-1
Page 40
8
7
CP1001
TMC-J12P-B2
1
2
3
4
5
6
6
7
8
9
10
11
12
5
4
3
2
1
FROM/TO DECK
(CP101)
CAP_FG
CAP_VCO
VCC
CAP_M/F/R
I_LIMIT
GND[M]
GND
LD/CY_VCO
CAP_CTL
LDM_CTL
CYL_FG/PG
CYL_CTL
FROM/TO DECK
CD852
CH01408A
BOT SENSOR
Q1011
ST-304L
ABC DEF GH
FROMPOWER
POWER_FAIL2
P.CON+5V
MOTOR+12V
GND
22016V YK
C1032
L1003
ELC0607
W805
3.9
0
SW1001
MXS01380MPP0
GND
22uH
EOT SENSOR
ST-304L
5.1
LED DRIVER
Q1024
KRC103SRTK
C1001
4716V YK
C1007
4725V YK
R1010
3.3K 1/4W
Q1013
R1016
0.1
5.0
D1003 LNA2702L010R
270 1/4W
0
X_RAY
CAP_FG
CAP_M/F/R
CAP_CTL
LDM_CTL
CYL_DRIVE
EOT
BOT
CENTLED
S825Y
C1042_2
47K
R1018
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1F
TAB_SW VCR_POWER_H
C1043
0.01B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
R1011
180K
R1073
180K
VCR_A_MUTE TAB_SW
TV_A_MUTE
IIC_OFF
CAP_FG
CTL-
CTL+
FF/REW_SW
Q1004
KRC103SRTK
0.0022 B
H.SW
H.AMP_SW1
CAP_M/F/R
C1089
5.1
C1025
0.1 F
R1001
3.3K
R1008
1K1/4W
R1064
1K1/4W
0
0
R1012
10K
R1075
C1022
0.1F
0.2
0.0039 B
13
W894
4.7K
C1084
5.9 X_RAY_SW
Q1023
0
2SC2412K
C1013
12
C1015 4710V KA
C1016 2216V KA
0.0047 B C1018 4.750V KA
C1019
0.001CH
C1027
0.0039B
TIMER SYSCON MICON IC
R1070
100
MS_SEN B
Q1003
RPI-352Q01R
11
R1048
4.7K
R1009 560
R1013 560
C1020
10
OEC7071A
23
1
0.8
CAP_CTL
R1028
1016V KA
IC1001
4
R1083
CYL_DRIVE
22K 1/4W
5.25.2
1.4
33K
C1065
R1029
4.7K
W810
0
5.1
NC
NC
5.9
5.2
2.5
0
2.0
0.6
2.5
2.5
0.2
0
2.5
2.6
2.5
5.1
5.2
0
MS_SEN-B
MS_SEN A
RPI-352Q01R
MICON SCHEMATIC DIAGRAM (SYSCON PCB)
SDA
REEL_T
REEL_S
0.1 F
818283848586878889
REEL-T
NC
POWER_FAIL_L
IIC OFF
CAP-FG
AMP-VSS
NC
DRUM FG/PG
90919293949596979899
AMP-VREFOUT
AMP-VREFIN
C
CTL-
CTL+
AMP C
CTL AMP-OUT
100
MSSEN-A
110
MS_SEN-A
Q1009
5.20.8
23
1
4
1.4
0.5
100
R1087
R1050
NOTE:
0.1 F
C1028
C1029
0.0068 B
C1061 100P CH
R1045
R1020 22K
R1017 39K
R1053 220
0.90.9
REEL-S
CAP FULL
EOT
MSSEN-B
00 0 00
MS_SEN-B
EOT
33K
THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
DRUM-PWM
BOT
4
BOT
MS_SEN-A
S818Y
CAP-PWM
5 HI-FI-ENV
5
ENV_DET
NC
75 VOLUME
81 VCR_A_MUTE
82 TV_A_MUTE
83 (EXT MUTE)
98 AMP-VCC
99 ANALOG VCC
100 DEW
6 VIDEO-ENV
AFT_M
R1030
SCL
Y/C_CS
Y/C_CLK
Y/C_DATA
C1060 100P CH
220
R1042
R1044
5.6K
220
R1038
5.6K
00
4.9 0 0 0
73 FF/REW-L
72 IIC-DATA1
74 JUST CLOCK
7 AFT(MONI)
8 AFT(REC)
9 KEY 1
9
5.25.2 2.22.22.41.41.4 5.22.32.62.6 5.25.2
KEY_A
REEL_S
REEL_T
4.7K
R1046
R1019
REEL SENSOR
Q1005
RPI-301
0 4.7 5.24.24.9
69 CS
70 SCLK
71 IIC-CLK1
10 KEY 2
KEY_B
4.7K
47K
68 SDATA
13 DUMMY-V.SYNC
12 CAP-LIMIT
11 CAP-FWD
11 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28 293 30
000
C1039_1
0.1 F DUMMY_V.SYNC
REMOCON_IN
C1058
4.7K
R1047
390
R1052
0
1.2
2
1
34
0
0.9
OSD_R
OSD_G
OSD_B
22
R1035
10
R1021
C1010 220P CH
C1009 220P CH
62 B
64 R
63 G
17 ENV-CMP-IN
19 HI-FI-H.SW
18 VIDEO-H.SW
NC
9
H.SW
TP1002
NC0
0
IC1003
R3111N311A/C
SYSTEM RESET IC
5.2 5.1
0.1 F
CENTLED
10
C1023 220P CH
4.8
61 CENTER LED
20 LDM CTL
00 00
LDM_CTL
NC
NC NC
OUT
123
V.REC_ST_H
R1007
4.7K
R1063
NC
00
0
65 NC
67 NC
66 V REC START H
16 HEAD.AMP.SW
15 COLOR ROTARY
14 REMOCON-IN
NC NC
W825
C1082
0.01 F
1006.3V YK
C1017
CAUTION: DIGITAL TRANSISTOR
C1071
OSD_BLK
C1004
R1036 4.7K
C1037 390P CH
59 V-SYNC
60 OSD OUT1
50 TAB SW
49 OSD-VSS
48 (AV2)
33 PLAY LED
32 RENT_H
31 ON-TIMER LED
21 NC
22 DEGAUSS_H
4.7K
R1055
0
GNDIN
0
100P CH
100P CH
58 H/C-SYNC
23 NC
R1066
4.7K 1/4W
R1022 4.7K
H_CTL
NC
45
C1056
0.1F
C1034
0.1F
C1035
220PCH
C1031
0.001B
57 NUA
56 CVIN
55 VHOLD
EXT-MUTE
24 H_CONTROL
25 PROTECT
5.2
5.0
NC
R1054
PROTECT
RESET
R1049
4.7K
D1001
1SS133
1K
R1031
54 HLF
XC_OUT(32KHz)
XC_IN(32KHz)
VCR-POWER
4.7K
C1083
0.0022 B
R1051
18K 1/4W
3325V YK
C1021
SERVICE
TP1001
NC
5.22.11.62.300002.62.52.51.8 515253545556575859660616263646566676869770717273747576777879880
53 OSD-VCC
52 SD-IN(MONI)
NUB
OSC-OUT2
OSC-IN2
CLKSEL
X-RAY_TEST
VSS
X-OUT(12MHz)
X-IN(12MHz)
VCC
RESET-L
T-REC LED
TV-POWER
T-REC_LED
2206.3V YK
C1003_1
R1032 10K
50
5.2
SERVICE
2.6
2.5
5.2
NC
40 41 42 43 44 45 46 47 48 49
2.6
2.1
5.2
1.3
1.5
5.2
4.8
31 32 33 34 35 36 37 38 39
REC LED
C1068
0.0022B
REC_LED
SD_SYNC
7
0
NC
NC(AV1)
0
NC
0
0
NC
0
NC
0
6
C1038
680P CH
L1001
2.2uH
R1040
33K
8
X1001
100CT01207
C104922PCH
X1002
100DA32R01
C105020PCH
5678
SDA
SCL
VSS
A2
0000
TUNER VIDEO SIGNAL DEFLECTION SIGNAL CAPSTAN AFC SIGNAL CYLINDER AFC SIGNAL CYLINDER APC SIGNAL
R1033
1K
C1046 20PCH
R1005
2.7K
C1047 18PCH
C1040 18PCH
C1048 18PCH
5.202.62.5
VCC
TEST
A1
A0
1234
X-RAY_TEST
RESET
PLAY_LED
IC1099
EEP ROM IC
S-24C04BDP-LA
R1034
1M
C1026
0.01F
C1062
1B
R1078
390K
TV_POWER_H
FROM/TO Y/C/AUDIO/HEAD.AMP
Y/C_CLK
Y/C_DATA
Y/C_CS H.SW
SD_VIDEO
ENV_DET
VCR_A_MUTE
CTL+
CTL-
DUMMY_V.SYNC
V.REC_ST_H
H.AMP_SW1
SD_SYNC
PLAY_LED
FROM/TO CHROMA/IF
POWER_OFF_H
HD
VD
AFT_M
SCL
SDA
OSD_R
OSD_G
OSD_B
OSD_BLK
AT+5V_BACKUP
AT+5V
VCR_POWER_H
TV_POWER_H
PROTECT
FROM/TO IN/OUT
IIC_OFF REC_LED T-REC_LED KEY_A KEY_B REMOCON_IN SCL SDA
TO SOUND AMP
TV_POWER_H TV_A_MUTE
FROM/TO DEFLECTION
X_RAY X-RAY_TEST H_CTL
PCB010 VMA227
8
7
6
5
4
3
2
1
ABC DEF GH
G-4G-3
Page 41
ABC D E F GH
IN/OUT SCHEMATIC DIAGRAM
8
CP351_1
TEST POINT
6
173979-6
B.OUT
IIC OFF
INT-MONI
SDA
123
AT+5V
Y/C_AUDIO
GND
4
Y/C_VIDEO
12345
SCL
GND
CP1003
TEST POINT
173979-4
1102345678
CP757_2
1-173979-0
KEY_B
(CD757)
FROM/TO OPERATION
NC NC NC
REC_LED
T-REC_LED
KEY_A
AT+5V
9
GND
REMOCON_IN
7
6
5
FROM/TO MICON
IIC_OFF
(SYSCON PCB)
W806
C4206_1
0.0022 B
1234567
CP353_1
173979-7
GND
(CD351)
SP_OUT
FROM/TO OPERATION
SOUND_OUT
SOUND_GND
FRONT_AUDIO_IN
GND
FRONT_VIDEO_IN
FROM/TO SOUND AMP
SOUND_GND
SOUND+
SP_OUT
FROM CHROMA/IF
AT+5V
INT-MONI
B.OUT
8
7
6
5
SDA
SCL
T-REC_LED
REC_LED
4
KEY_B
KEY_A
REMOCON_IN
3
FROM/TO Y/C/AUDIO/HEAD.AMP
Y/C_AUDIO
Y/C_VIDEO
FRONT_AUDIO
FRONT_VIDEO
3.6 3.6
0
REC LED SW(AI)
Q1007
KRC102SRTK
0
2
W903
(AI)
0
0
ON TIM/T-REC LED SW(TO)
Q1008
KRC102SRTK
W912
(AI)
W866
R4201
75
FROM POWER
GND
4
3
2
THE DC VOLTAGE AT EACH PART WAS
NOTE:
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
CAUTION: DIGITAL TRANSISTOR
B.SIGNAL
TUNER VIDEO SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
PCB010 VMA227
1
ABC D E F GH
G-6G-5
Page 42
ABC D E F GH
8
7
FROM/TO MICON
PROTECT
AT+5V_BACKUP
OSD_BLK
VCR_POWER_H
POWER_OFF_H
6
1213
1.8
1
AGC
2
2.5
3
2.5
4
SCL
2.5
5
SDA
5
6
7
+5V
8
9
+30V
10
TU601 TECC1040PG32D
11
IF
1415
4.9
29.3
0
4
3
FROM/TO TV POWER
AT+30V
GND
UNREG+8V
AT+12V
P.CON+5V_SW
AT+5V
FROM MICON
2
TV_POWER_H
TUNER VIDEO SIGNAL
R.SIGNAL
G.SIGNAL
B.SIGNAL
DEFLECTION SIGNAL
LUMINANCE SIGNAL
1
COLOR SIGNAL PLAYBACK VIDEO SIGNAL
AT+5V
OSD_R
OSD_G
OSD_B
AFT_M
NC
NC NC
NC NC
SDA
SCL
CHROMA/IF SCHEMATIC DIAGRAM
W829
AT+5V
VD
C667
TU_VIDEO
HD
C602
0.022 F
C604
L603
C612
4706.3V YK
4.750V KA
C610
C605
100P CH
100P CH
W871
W901
INT-MONI
47uH
0305
AUDIO_OUT
Y/C_AUDIO VD
TU_AUDIO
AFT_M
R601
2.2K
1
3
L601
3192001
W895
C656
0.01 F
220 1/2W
D601 1SS133
R609 680
C618 330P CH
C621 0.01 F
R614 390K
1K
R616
2.6
1.9
0
BUFFER
Q601
2SA1037AK
CF603
EFCT4R5YS5A
R612
680 1/4W
C623 0.0047 B
R618 10M
R607
CF601 SAF45MFY220ZR
C624
4716V YK
D602
MTZJ8.2B
SAW FILTER
OUTOUTGININ
12345
W862
R608
10K
1F
C625
C632
R620
100
C627
C631
1F
2.250V KA
150V KA
C622
0.22 B
R665
C687
EFCT4R5MW5
L607
R622
W848
150K
C634
0.01 F
CHROMA IC
0.1 F
CF604
22uH
330
R615
470
2.3
2.4
2.3
3.0
2.0
3.2
9.0
3.0
2.2
0
0
2.4
2.9
NC
2.3
2.7
1.5
IC601
M61206FP
C636
49
50515253545556575859
AUDIO BYPASS
EXT AUDIO IN
FM DIRECT OUT
VIF VCO F/B
VREG Vcc
VIF APC FILTER
VIF VIDEO OUT
VIF GND
AFT OUT
6061626364
QIF IN
RF AGC OUT
IF AGC FILTER
REG.
Q602
KTC3203_Y
0.01 F
100010V YK
C641
W865
0.01 F
NC
2.0 2.0 8.2 8.2 8.2 4.0 5.5
Hi Vcc
46 SW REG CONT 47 LIMITER IN 48 IF AGC 49 QIF OUT 50 AUDIO OUT
64 VIF IN
VIF Vcc
3
C639
R624
W5RH3.5X5X1.0
H VCO F/B
0.01 F
2K
R602
2
1 10111213141516
B602
8.04.8
SB140-EIC
5.5
1 VIF IN
SCL
5
100
SCL
D608
W801
R625
6
R626
H.PLUSE
4.8 8.3
C643
10K
MCU RESET
INTELLIGENT MONI
H OUT
FBP IN
789
10K
R656
H_OUT
REG.
Q603
KTC3203_Y
5.5 REG.
Q604
2SD400E
5.0 8.3
5.6
100
R663
100
R628
2250V YK
2250V YK
C644
NCNC
3.7
Y SW OUT
5.7V REG OUT(FOR CPU)
DEF
C675
68P CH
1K
1K
R657
C629 68P CH
R603
REG.
Q605
2SD400E
5.08.3
5.6
C640
0.1 F
5.6 0 0 3.2
5v REG
VIDEO/CHROMA GND
34 EXT C in 33 8.7V REG OUT 32 X’TAL 31 ACL/ABCL
17 V OUT 16 B OUT
AFC FILTER
H.PLUSE OUT
SDA
1B
C645
C647
0.01 F
R631
6.8K
100
SDA
CAUTION: DIGITAL TRANSISTOR
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
R633
8.2K
150V KA
C649
3.2
TV/Y IN
CHROMA APC FILTER
V PULSE OUT
VIDEO CHROMA Vcc
V RAMP FEEDBACK
STRAT UP Vcc
R OUT
POWER ON CONT
D609
MTZJ6.8B
R658 1.5K
100
R666
W846
R.OUT
VCR_POWER_H
11.0 8.2
FAST BLK
fsc OUT
V RAMP CAP
D610
R659 1.5K
1/4W
G.OUT
S107XS107Y
(SYSCON PCB)
REG.
Q606
8.8 KTC3203_Y
B604
W4BRH3.5X6X1
100
R644
C652
C651
47P CH
C672
C650
0.01 F
0.015 B
2.0
8.8
333435363738394404142434445464748
3.3
3.0
0
R IN
30 31 32
4.7
0
G IN
0.1
7.3
PROTECT
NC
4.9
4.9
4.8
2.0
0
B IN
20 21 22 23 24 25 26 27 28 29
8.0
8.0
3.7
17 18 19
G OUT
3.04.0 4.8 2.84.03.33.02.6 0 00.43.22.55.05.01.5 D615
D611
MTZJ6.8B
MTZJ6.8B
R636 100
R660 1.5K
D620
1SS133
R635
100
AT+5V
B.OUT
ARESINCE THESE PARTS MARKED BYCAUTION:
4716V YK
R610
C654
X602
MTZJ6.8B
C648
0.2250V KA
1M
18P CH
C673
100CT3R505
C659
1006.3V KA
C653
0.01 F
0
R669
470
R654
820 1/2W
1/4W
C674
120P CH
1K
W827
0.1 F
R613
Q611
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
R638
8.2K
R627
12K
3.6
0
H CONTRO
0
KRC102SRTK
C655
R668
L612
220P CH
1SS133
R655_1
470
6.8uH
R676
C660
W874
4716V KA
D621
1SS133
D619
1K 1/4W
4.5 H CONTRO
0
KRC102SRTK
R639
12K
R650
470 1/4W
Q612
12K
R646
R642
5.6K
C688
0.056 B
C664
163V MKT
R649
2.2K
W850
8
FROM/TO Y/C/AUDIO/HEAD.AMP
SD_VIDEO
TU_VIDEO
TU_AUDIO
Y/C_AUDIO
VD
TO IN/OUT
INT-MONI
B.OUT
AT+5V
C665
27K
1016V KANP
R643
47K
C658
0.22 B
R641
22K
ETANTLES PIECES REPAREES PAR UNATTENTION:
R647
2.2K
R648
2.2K
D605
11ES1-EIC
R652
4.7K C630
100P CH
1.0
0
W872
W828
CUT OFF SW
Q608
KRC111SRTK
OSD_BLK
V_OUT
OSD_R
OSD_G
OSD_B
HD
S818X
W878
CUT_OFF
B.OUT
G.OUT
R.OUT
HEATER
180V
POWER_OFF_H
0.4
D612 1SS133
D614 1SS133
D613 1SS133
0.8
H_GND
PROTECT
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE: THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
0
TO SOUND AMP
AUDIO_OUT
FROM/TO DEFLECTION
AT+5V
ACL
GND
V_OUT
HEATER
V_FEEDBACK
180V
H_OUT
H.PLUSE
H_GND
(CP851B)
CP851A
B2013H02-10P
H_GND1
R672
1K 1/4W
PROTECT
5.0
Q609
KRC111SRTK
TO CRT
GND
10
CUT_OFF
9
B.OUT
8
G.OUT
7
R.OUT
6
NC
NC
5
H GND
4
HEATER
3
NC
NC
2
180V
1
FROM TV POWER
AT+12V
PCB010 VMA227
7
6
5
4
3
2
1
ABC D E F GH
G-8G-7
Page 43
ABC D E F GH
SOUND AMP SCHEMATIC DIAGRAM
8
7
FROM/TO IN/OUT
SP_OUT
SOUND+
SOUND_GND
6
W814
5
(SYSCON PCB)
W808
5678
08.2 3.5 3.4
8
7
6
5
-+
SOUND AMP IC
IC351 AN7511
1234
C351
0
0.0068
2.250V KA
FROM MICON
TV_A_MUTE
4
3
TV_POWER_H
FROM TV POWER
SOUND+B
SOUND_GND
FROM CHROMA/IF
AUDIO_OUT
GND
C357
0.001 CH
C355
1016V KA
R359
47K
R353
68K
R357
5.6K
C354
R352
220016V YK
4.7K
2
C301
3.95.1 0.3
4
B
1050V YK
C356
3
2
PCB010 VMA227
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
AUDIO SIGNAL(REC)
1
ABC D E F GH
G-10G-9
Page 44
ABC D E F GH
8
CAUTION:
ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE
5A 125V
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE
(F501) AND 2.5A 125V (F502)
N’UTILISER QUE DES FUSIBLE DE MEME TYPE
(F501) ET 2.5A 125V (F502)
2.5A 125V
5A 125V
5A 125V
POWER SCHEMATIC DIAGRAM
(SYSCON PCB)
8
7
C516
C541_1
1SS133
10ELS2N
SB290S
820P2KV R
C505
D507
SB290S
D517
C519
470P500V B
D519
D505
SB290S
470P500V B
S802Y
D513
1SS133
470P500V B
D508
1SS133
C524
D510_1
RU2AM-EIC
C517
0.00222KV R
100016V MHE
C522_1
C523
1160V YK
C534
763WSA0019
TP601
220200V YXF
C521
C511
47025V YK
YK
47035V
R503
1 1/2W
IN OUT GND SW
1234
100016V YK
NC
HS504
S825X
2.5A 125V
F502
2.5A125V
FH504
51MS025LCC
EYF-52BC
R512
56K 1/2W
R508
56K 1/2W
1F
C527
R640 10 1/2W
R651 10 1/2W
5V REG IC IC501 KIA78R05PI
EYF-52BC
D515
AT+12V
POWER_FAIL
UNREG+8V
R522
100 1/4W
+B
FH503
AT+30V
MTZJ33B
W834
S802X
6
5
AC120V_60Hz
CD501
0R414903
DEGAUSS
COIL L503
8R140031
BLUE
BROWN
21
CP502
A1561WV2-2P
1
2
ZPB45BL3R0A
S101A
S102A
TH501_1
CP505
003P-2100
FH502
EYF-52BC
CP504
003P-2100
5A 125V
F501
5A125V
51MS050LCC
EYF-52BC
FH501
R500
2.7M 1/2W
C506
+-10%
0.22275V PHE840
W838
L502
1R0A103F24
34
12
RM11C-EIC
RM11C-EIC
R501
2.2 5W
4
C554
0.0022 B
FEED BACK
AT+5V
R553
R554
SWITCHING
KTC3198
39K 1/2W
22K 1/4W
330
VR502
+B ADJ
3
2.7K
R529_1
R516
2
POWER_FAIL2
POWER_FAIL
D501
MTZJ10B
10K
R530
1K
R513
10K
4.20
POWER_FAIL
Q505
2SA1037AK
R507
4.9
4.89
47K
Q507
15.7
6.0
5.4
R532
4.7K 1/4W
R505
330 1/4W
D528
MTZJ5.6B
D518
D520
R533
RM11C-EIC
C507
C508
RM11C-EIC
C509
470200V UP
FEED BACK
IC502
TLP621(GR)
1.2K 1/4W
D521
0.001500V B
500V
B
0.001
D530
53.6
54.4
1
2
R528
0.22 1W
HS501_1
763WSAA013
R5041MR5061MR510
R502
C535
8.02
34
0.4
D534
MTZJ18B
4750V MHE
C537
121.7
10 3W
R
0.0012KV
R514
0.33 1W
1M
R511
1M 1/4W
B501
BL02RN2-R62T2
D
G
3.4
SWITCHING
S
0.5 Q510
STP5NC50FP
C510
0.0056 B
R525
1.8K
R524
560 1/4W
3.4
0.4
0.5
C536
0.022 B
10K
R527
470P250V KX
C530
C539
0.0033250V KX
R517
330 1W
D533
1SS133
R531221/4W
D537
1SS133
SWITCHING Q511 KTC3203_Y
D536
10ELS6N
MTZJ18B
C515
C532
270P B
D535
0.01100V MKT
B503
W5RH3.5X5X1.0
C518
470P500V B
D512
SB290S
D514
T501 81290804
NC
10
135V
SB
11
SG
12
12V
13
5V
14
LG
15
16
17
HG
12V
18
W856
DC IN
8
6
NC
5
COL
NC
4
3
2
GND
1
ADJ
TO SOUND AMP
SOUND+B
GND
SOUND_GND
TO Y/C/AUDIO/HEAD.AMP
GND
P.CON+5V
TO DEFLECTION
GND
+B
AT+12V
H_GND_1
H_GND
TO IN/OUT
GND
TO MICON
GND
P.CON+5V
POWER_FAIL2
GND (MOTOR GND)
MOTOR+12V
FROM/TO CHROMA/IF
H_GND AT+30V
AT+12V
UNREG+8V
AT+5V
P.CON+5V_SW
GND
PCB010 VMA227
7
6
5
4
3
2
THE DC VOLTAGE AT EACH PART WAS MEASURED
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:
1
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
1
ABC D E F GH
G-12G-11
Page 45
ABC D E F GH
DEFLECTION SCHEMATIC DIAGRAM
8
7
6
5
4
3
2
FROM MICON
FROM/TO CHROMA/IF
V_FEEDBACK
FROM POWER
FROM/TO MICON
X-RAY_TEST
PCB010 VMA227
H_CTL
V_OUT
GND
ACL
H.PLUSE
HEATER
H_GND
180V
AT+5V
H_OUT
GND
H_GND
H_GND_1
AT+12V
X_RAY
+B
SWITCHING
Q403
KRC111SRTK
(SYSCON PCB)
V.OUTPUT IC
IC401 AN5522
­+
Vcc GND
1234567
3.6 25.9 2.0 0 12.5 26.3 3.7
D401
11E1-EIC
R401
17
W863
W917
W853
W813
R441
56K
4.9
0
0
R440
51K 1/4W
SWITCHING
Q404
KRA104SRTK
AMP
470
R439
D408
0
PUMP UP
10035V MHE
C406
0.05
20
22K +-1%
HZ27-1L
10.8
0
THERMAL PROTECTION
D407
1SS133
4.89
H CONTROL SWITCH
Q407
0.3
2SC2412K
R404
1K 1/4W
C416
22P CH
0.5
H-DRIVE
Q405
2SC1627_Y
D409
HZ11B3L
W847
W907
R444
31.0
0
R411
18K +-1%
33K +-1%
C417
R456
R442
15K +-1%
R413
1.8K
6801/2W
R402
31.0 0
B
500V
22.3
0.0022
C418
4.7K 1/2W
C433
R420
6801/2W
R422
ETH09K14BZ
34
NC
2
0.2 1
2250V YK
33025V YK
8.2K +-1%
T401
R414
C405
R415
D412
1N4937
D402
1N4937
100035V YK
1 1/2W
100V
TF
0.22
W807
C402
R450
2.7 1W
W857
W840
C431
D413
1N4937
2.2250V YK
262.0
136.0
135.0
22.3
8.1
NC
1.5
NC
FB401 3213015R
COL
1
E180
6
B+
2
AFC
0
9
HEA TER
10
GND
8
0
E12
4
E27
3
GND
8
E8
5
HV
F
S
GND
0
11
0.7
ABL
7
R421
220 1/2W
V.POSI
330 1/2W
H.OUTPUT
Q406
2SD2627LS
-CBC11
HS402
763WSAA013
METAL
VR401
2.2K
R408
1.3
680 1/4W
B403
262.0
W884
4.7mH 0909
1250V MHE
C422
R447
68 1/2W
W5RH3.5X5X1.0
0
B402
W5RH3.5X5X1.0
R419
R416
82K
12K
150V KA
2.2 1/2W
6
1.3
C438
100025V YK
C407
D411
1SS133
19
W816
0.001500V B R460
100 1/4W
763WSAA013
L401
W823
D403
D404
HS401
C424
18
MTZJ30B
MTZJ30B
C423
W832
0.00911.25KV MPP
W824
R451
2.7 1W
R449
C451
W820
0.47250V PMS
W890
TO DY
CP401
A1561WV2-A5P
NC
5
4
3
2
1
A34JXV70X53N45
9
10
8 6
11
FOCUS
SCREEN
V801
R G B
2
CD801
SM1098-009-1A
FROM/TO DECK
175
1
CD803
CH012101
TO CRT
CAUTION: DIGITAL TRANSISTOR
D410
MTZJ6.8B
R423
10K 1/4W
W811
R453
180K 1/4W
C432
0.150V YK R490
68K 1/4W
D405
11E1-EIC
CAUTION: DIGITAL TRANSISTOR
W817
8
7
6
5
4
3
2
1
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE: THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
DEFLECTION SIGNAL
1
ABC D E F GH
G-14G-13
Page 46
ABC D E F GH
CRT SCHEMATIC DIAGRAM
8
BLUE AMP
7
4.7K
R814
6
5
FROM CHROMA/IF
CP851B B2013H02-10P
10
9
8
7
6
5
4
3
2
1
GND
CUT_OFF
B.OUT
G.OUT
R.OUT
NC
H_GND
HEATER
NC
180V
(CP851A)
GND
CUT_OFF
B.OUT
G.OUT
R.OUT
H_GND1
HEATER
NC
180V
R811
390
C809
470P B
Q804_1
2SC4217
2.8
GREEN AMP
Q805_1
2SC4217
2.9
132.5
2.5
132.1
2.5
(CRT PCB)
21
22
TP801
R808
2.7K 1/4W
TP802
R802
12K 1W
R807
2.7K 1/4W
R805
12K 1W
J801_1
HPS3200-010501
127.5
0
3
4
0
0
0
567
1
F
126.5
8
8
104.1
9
127.5
7
6
5
4.7K
R815
R812
390
C810
470P B
4
RED AMP
Q806_1
2SC4217
2.8
23
132.3
2.5
3
4.7K
R816
R813
390
C811
470P B
C805
2
PCB110 TCA377
100P CH
TP803
R810
12K 1W
R820
2.7K 1/4W
L801
220uH
FROM DEFLECTION
(CD801)
CP801
A2361WV2-2P
GND
2
GND
1
FOCUS
W836
SCREEN
S801
C801
0.00222KV B
ANT001
T4-216BNK-BK
ACCESSORY
TM101
R25-1195
4
3
2
1
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
R.SIGNAL
G.SIGNAL
B.SIGNAL
1
ABC D E F GH
G-16G-15
Page 47
ABC D E F GH
OPERATION SCHEMATIC DIAGRAM
8
7
SW751
EVQ21505R
POWER ON/OFF
R778_1
820 1/4W
SW795
REC/OTR
R771_1
1K 1/4W
EVQ21505R
SW791
STOP/EJECT
R772_1
1.5K 1/4W
EVQ21505R
PLAY
SW792
(OPERATION PCB)
R773_1
2.7K 1/4W
SW793
EVQ21505R
FF/CUE
EVQ21505R
R774_1
5.6K 1/4W
SW794
REW/REV
EVQ21505R
R766
10 1/4W
C755_1
OS753
PIC-37143TH5
0
GND
3
4.5 B+
2
4.5 Vout
1
2206.3V KA
D793
REC/OTR
R793_2
LTL-4224-031A
270 1/4W
T-REC
D791
R754_2
LTL-4224-031A
270 1/4W
6
SW796
VOL UP
R777_1
1.5K 1/4W
EVQ21505R
SW797
VOL DOWN
EVQ21505R
W812
W811
R351
22 1/4W
R350_1
22 1/4W
W814
W815
1
NC
5
4
3
2
6
7
HEADPHONE_JACK
J351
HTJ-035-28A
R775_1
SW799
820 1/4W
EVQ21505R
CH UP
SW798
FROM/TO IN/OUT
CD757
(CP757_2)
CH2A019A
REMOCON_IN
10
9
GND
8
AT+5V
7
6
KEY_A
5
T-REC_LED
5
4
REC_LED
3
2
1
KEY_B
NC
NC
NC
CH DOWN
R776_1
1K 1/4W
EVQ21505R
W805
8
7
6
5
10016V KA
C382
4
HEH
4
123
E
VIDEO
3
FROM/TO IN/OUT
(CP353_1)
CD351_1 CH27090A
FRONT_VIDEO_IN
7
6
GND
FRONT_AUDIO_IN
5
SOUND_GND
4
SOUND_OUT
3
SP_OUT
2
GND
2
SPEAKER
SP351
NF-16D27W
8 OHM
1
1
CD352 CH12435A
SP +
1
SP -
2
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
FRONT AV JACK
J701_1
AV2-24D-5
AUDIO L
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
TUNER VIDEO SIGNAL
AUDIO SIGNAL(REC)
PCB030 TEXA28
4
3
2
1
ABC D E F GH
G-18G-17
Page 48
ABC D E F GH
INTERCONNECTION DIAGRAM
8
J351
1
5
4
3
2
6
7
8 OHM
SPEAKER
SP351
6
S101A
BLUE
BROWN
S102A
AC120V_60Hz
CD501
7
2
1
CD352
SOUND GND
SP OUT
CD757
10
REMOCON_IN
10
CP757_2
5
DEGAUSS COIL
L503
21
CP502
2
DEGAUSS COIL
1
DEGAUSS COIL
E
123
VIDEO
FRONT AV JACK
J701_1
9
8765432
GND
AT+5V
KEY_A
9
8765432
4
HEH
REC_LED
T-REC_LED
J
AUDIO L
KEY_B
CD351
1
1
CP351_1
7654321
GND
FRONT_VIDEO_IN 7654321
SP_OUT_L
SOUND_OUT_L
SOUND_GND
FRONT_AUDIO_IN
GND
OS753
GND
B+
V.OUT
OPERATION PCB
PCB030 TEXA28
TM101
LM
LOADING MOTOR
M101
CP1001
1
2
3
4
5
6
7
8
9
10
11
12
CAP_FG
CAP_VCO
VCC
CAP/M/F/R
I_LIMIT
MOTOR_GND
GND
LD/CY_VCO
CAP_CTL
LDM_CTL
CYL_FG/PG
CYL_CTL
ROTOR
MAGNETCOIL
MR
FG SENSOR
G
O
VCC
CAPSTAN DD UNIT
DECK MECHA ASS’Y
M2001
HALL
IN
MAIN
OUT
SWITCH
LOGIC
HALL
SENSOR
1
2
HALL VCC
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
7
6
5
H5001
MICRO MOTOR
M2003
CH2
CH1
SP HEAD
AUDIO
CONTROL
4
3
AE
2
1
FBT
FB401
FFC
4
FOCUS SCREEN
CP401
5
4
3
2
NC
3
8
9
NC
HEATER
1102345678
180V
S801
FOCUS
SCREEN
CRT PCB
PCB110 TCA377
6
5
7
4
CRT SOCKET
3
J801
1
2
1
2
CP801
CP851B
GND
GND
GND
CD801
9
B.OUT
CUT_OFF
G.OUT
F
R.OUT
NC
H_GND
V801
ANODE
H.V
CRT
1
CP851A
CUT_OFF
B.OUT
G.OUT
R.OUT
HEATER
SYSCON PCB
PCB010 VMA227
GND
NC
H_GND
NC
180V
10
9
8
7
6
5
4
3
2
1
TUNER
PACK
TU601
IF
11
NC
10
+30V
9
NC
8
+5V
7
NC
6
SDA
5
SCL
4
NC
3
NC
2
AGC
1
U IN
CP4001_1
1
2
3
4
CP4002
6
5
4
3
2
1
CP4003
2
1
SP-CH2 (L)
SP_COM
SP-CH1 (R)
AUDIO PB
AUDIO REC
CTL+
CTL-
AE HEAD(-)
AE HEAD(+)
FE HEAD (GND)
FE HEAD (HOT)
FFC
2
FE HEAD (GND)
1 FE HEAD (HOT)
FULL ERASE HEAD ASS’Y
1
2
3
4
CD2001
U-OUT
V-OUT
W-OUT
M-COM
GND
PG_OUT
PG_GND
CYLINDER UNIT ASS’Y
UN4001
AUDIO PB
6
AUDIO REC
5
CTL+
4
CTL-
3
AE HEAD(-)
2
AE HEAD(+)
1
H5002
1
2
3
4
5
6
7
HEAD AUDIO CONTROL ASS’Y
1
ABC D E F GH
G-20G-19
Page 49
WAVEFORMS
Y/C/AUDIO/CCD/HEAD AMP
1PB
0.5V 20µs/div
2 POWER ON
100mV 0.1µs/div
MICON
6 POWER ON
1.0V 20µs/div
7 POWER ON
0.5V 10ms/div
11 PB
0.5V 0.5ms/div
12 PB
1.0V 0.5ms/div
3 PB 10mV 20us/div
4 PB
0.5V 1ms/div
5 REC
10.0V 5us/div
8 POWER ON
1.0V 10µs/div
13 PB
1.0V 5ms/div
DEFLECTION
9 PB
1.0V 10ms/div
10 PB
1.0V 5ms/div
The following waveforms were measured at the point of the corresponding
NOTE:
balloon number in the schematic diagram.
17 0.5V 5ms/div
18 10.0V 5ms/div
H-1
Page 50
19 2.0V 20µs/div
20 200mV 20µs/div
WAVEFORMS
CRT
21 50.0V 20µs/div
22 50.0V 20µs/div
23 50.0V 20µs/div
The following waveforms were measured at the point of the corresponding
NOTE:
balloon number in the schematic diagram.
H-2
Page 51
MECHANICAL EXPLODED VIEW
120
111
205
V801
205
L503
205
205
J801
PCB110 (CRT PCB)
110
115
118
117
113
207
116
206
122
206
PCB030
206
108
121
B
101
(OPERATION PCB)
207
SP351
I-1
Page 52
MECHANICAL EXPLODED VIEW
204
207
204
204
209
119
203
202
202
114
202
202
106
202
201
112
PCB800 (SYSCON PCB)
107
109
209
103
104
102
104
211
208
112
210
210
105
FB401
211
201
I-2
Page 53
CHASSIS EXPLODED VIEW (TOP VIEW)
341
331
348
334
314
323
508
333
315
AB
M2003
501
H5002
322
336
508
324
502
AB
335
342
332
UN4001
503
312
504
305
300
H5001
306
302
347
301
AA
313
AA
AA
AA
318
325
AB
CLASS
GREASE G-555G
AB
317
PART NO.
MG-33
309
321
AA
AB
319
AB
AB
AB
320
316
MARK
AA AB
307
AB
M101
304
AA
AB
506
346
507
AB
NOTE:
Applying positions AA and AB for the grease are displayed for this section. Check if the correct grease is applied for each position.
345
AB
L-2
Page 54
CHASSIS EXPLODED VIEW (BOTTOM VIEW)
328
308
327
326
509
344
343
AA
AA
338
AA
337
510
AA
AB
AB
510
AA
340
AA
M2001
510
AA
AA
303
329
AA
311
339
310
AB
300
AA
AA
CLASS
GREASE G-555G
PART NO.
MG-33
MARK
AA AB
505
330
NOTE:
Applying positions AA and AB for the grease are displayed for this section. Check if the correct grease is applied for each position.
L-3
Page 55
MECHANICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION
101 A5A304C720 CABINET,FRONT ASS'Y 102 85OP700037 HOLDER,LED 103 752WSA0230 SHIELD,CASE HEAD AMP 104 753WSA0118 PLATE,EARTH-SYSCON 105 899HV3T000 HOLDER,ANODE WIRE 106 702WPA0832 CABINET,BACK 107 761WPA0225 HOLDER,DECK 108 735WPAA267 BUTTON,REC 109 753WUAA006 SPRING,EARTH HEAD AMP
110 726000A023 SHEET,CRT SERVICEMAN 111 741WUA0019 SPRING,EARTH 112 85OP700038 HOLDER,END SENSOR 113 701WPJB487 CABINET,FRONT 114 722A08A095 SHEET,RATING 115 711WPA0114 PLATE,FRONT 116 712WPJB238 FLAP 117 713WPA0075 GUIDE,REMOCON 118 7230006830 SHEET,LED 119 752WSAA040 PLATE,DECK SHIELD
120 723000A824 FILM,DECORATION 121 735WPJA514 BUTTON,FRAME 122 743WKA0032 SPRING,FLAP (COMBO)
201 8117540B04 SCREW,TAPPING (B0) TRUSS 4x20 202 8117540A64 SCREW,TAPPING (B0) TRUSS 4x16 203 8107630604 SCREW,TAP TITE (S) BRAZIER 3x6 204 8110630A24 SCREW,TAP TITE (P) BRAZIER 3x12 205 8121J50B54 SCREW,TAPPING (B0) GW20 5x28 206 8110630A04 SCREW,TAP TITE (P) BRAZIER 3x10 207 8110630804 SCREW,TAP TITE (P) BRAZIER 3x8 208 8109I30804 SCREW,TAP TITE (B) WH7 3x8 209 8110330804 SCREW,TAP TITE (P) FLAT 3x8
210 8109630802 SCREW,TAP TITE (B) BRAZIER 3x8 211 8109I30A04 SCREW,TAP TITE (B) WH7 3x10
--- JA5K0200 POLYBAG
--- J5A30401 INSTRUCTION BOOK
--- J5780102 WARRANTY SHEET
--- 791WHAA016 LAMIFILM BAG
--- A5A304A975 INSTRUCTION BOOK KIT
--- 792WHA0271 PACKAGE,TOP
--- 792WHA0272 PACKAGE,BOTTOM
--- 793WCDB088 GIFT BOX
J1-1
Page 56
CHASSIS REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
300 A5A305A420KDECK ASS'Y A5A305A420K 501 8107226804 SCREW,TAP TITE(S) BIND 2.6x8
301 85OA400227 PINCH ROLLER BLOCK 503 8107226404 SCREW,TAP TITE(S) BIND 2.6x4 302 85OA500026 AHC ASS'Y 504 8102120604 SCREW,PAN M2x6 303 85OP200290 BELT,CAPSTAN (S) 505 8109126604 SCREW,TAP TITE(B) PAN 2.6x6 304 85OP600581 WORM 506 810A130404 SCREW/WASHER(A) M3x4 305 85OP500083 BASE,AC HEAD 507 810A126504 SCREW/WASHER(A) M2.6x5 306 85OP800324 SPRING,AC HEAD 508 82Q264713N POLYSLIDER WASHER 2.6x4.7xT0.13 307 85OA000459 MAIN CHASSIS ASS'Y 509 82P184505N POLYSLIDER WASHER(CUT) 1.8x4.5xT0.5 308 85OA200089 CLUTCH ASS'Y 309 85OA200090 ARM IDLER ASS'Y 510 83ETW30000E-RING 3.0
310 85OA300065 LOADING ARM S UNIT CD1501 122H071603 CORD JUMPER SMCD-7X151 311 85OA300066 LOADING ARM T UNIT CD1502 122Y021902 CORD JUMPER 2Y021902 312 85OA400223 INCLINED BASE T UINT 3S H5001 1523D91034 HEAD (AUDIO CONTROL) HVMXA1072A 313 85OA400226 P5 ARM ASS'Y H5002 1543D02013 HEAD (FULL ERASE) HVFHP0032A 314 85OA400233 TENSION ARM ASS'Y (WT) !M101 1596P98001 MOTOR (LOADING) MXN13FB12K3 315 85OA400231 INCLINED BASE S UNIT !M2001 1510S98036 CAPSTAN DD UNIT F2QVB08 316 85OP800358 SPRING,LOCKER !M2003 1589S11014 MICRO MOTOR I2OAL03 317 85OP900736 CASS,HOLDER !UN4001 A5A305A500 CYLINDER UNIT ASS'Y A5A305A500 318 85OP900748 CASS,SIDE L 319 85OP900749 CASS,SIDE R
320 85OP900739 LOCKER,R 321 85OA900228 LINK UNIT 322 85OP000496 POST,CASS GUIDE 323 85OP200291 REEL,S (S) 324 85OP200292 REEL,T (S) 325 85OP200308 GEAR,IDLER 326 85OP200311 GEAR,CLUTCH 327 85OP200312 GEAR,COUPLING 328 85OP200313 LEVER,CLUTCH 329 85OP300194 GEAR,MAIN LOADING
502 810A123504 SEMS A M2.3x5.0
330 85OP400490 LEVER,TENSION 331 85OP400492 HOLDER,TENSION 332 85OP400520 CAP.P4 333 85OP400532 BAND,TENSION 334 85OP400533 CONNECT,TENSION 335 85OP600573 ARM,BRAKE T 336 85OP600574 BAND,BRAKE T 337 85OP600577 CAM,PINCH ROLLER 338 85OP600578 CAM,MAIN 339 85OP600579 ROD,MAIN
340 85OP600582 GEAR,JOINT 341 85OP800322 SPRING,TENSION 342 85OP800350 SPRING,BRAKE T 343 85OP800355 SPRING,COUPLING 344 85OP800356 SPRING,RING 345 85OP900743 LEVER,LINK 346 85OP900744 LEVER,FLAP 347 85OP900745 CASS,OPENER 348 85OP900746 BRACKET,TOP 3V
J2-1
Page 57
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
RESISTORS DIODES
! R415 R002T22R2J RC 2.2 OHM 1/2W D536 D28TELS6N6 DIODE RECTIFER 10ELS6N-TA1B2 ! R420 R801R7822F RC 8.2K OHM 1/10W D537 D1VT001330 DIODE,SILICON 1SS133T-77 ! R439 R801R7223F RC 22K OHM 1/10W D601 D1VT001330 DIODE,SILICON 1SS133T-77 ! R442 R801R7153F RC 15K OHM 1/10W D602 D97U08R21B DIODE,ZENER MTZJ8.2B T-77 ! R444 R801R7183F RC 18K OHM 1/10W D605 D2WT11ES10 DIODE SILICON 11ES1-EIC ! R447 R65582680J R,FUSE 68 OHM 1/2W D608 D2WXSB1400 DIODE SCHOTTKY SB140-EIC
R449 R63502010J R,FUSE 1 OHM 1/2W or D609 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
! R450 R655812R7J R,FUSE 2.7 OHM 1W D611 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
R451 R655812R7J R,FUSE 2.7 OHM 1W D612 D1VT001330 DIODE,SILICON 1SS133T-77 ! R500 R0G3K2275K RC 2.7M OHM 1/2W D613 D1VT001330 DIODE,SILICON 1SS133T-77 ! R501 R5Y2CD2R2J R,CEMENT 2.2 OHM 5W D614 D1VT001330 DIODE,SILICON 1SS133T-77 ! R502 R3X28B100J R,METAL OXIDE 10 OHM 3W D615 D97U06R81B DIODE,ZENER MTZJ6.8B T-77 ! R510 R903N8105J RC 1M OHM 1/8W D619 D1VT001330 DIODE,SILICON 1SS133T-77 ! R512 R002T2563J RC 56K OHM 1/2W D620 D1VT001330 DIODE,SILICON 1SS133T-77
R514 R3X181R33J R,METAL OXIDE 0.33 OHM 1W D621 D1VT001330 DIODE,SILICON 1SS133T-77 ! R517 R3X181331J R,METAL OXIDE 330 OHM 1W D791 0021E2Q150 LED LTL-4224-031A ! R528 R63581R22J R,FUSE 0.22 OHM 1W D793 0021E2Q150 LED LTL-4224-031A ! R802 R3X181123J R,METAL OXIDE 12K OHM 1W D1001 D1VT001330 DIODE,SILICON 1SS133T-77 ! R805 R3X181123J R,METAL OXIDE 12K OHM 1W D1003 0010100320 INFRARED LED LNA2702L010R ! R810 R3X181123J R,METAL OXIDE 12K OHM 1W D4003 D1VT001330 DIODE,SILICON 1SS133T-77
R655U2010J R,FUSE 1 OHM 1/2W D610 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
CAPACITORS ICS
C354 E02L02222M CE 2200 UF 16V ! IC351 I01DP75110 IC AN7511 ! C402 E02L04102M CE 1000 UF 35V ! IC401 I01TD55220 IC AN5522 ! C407 E02L03102M CE 1000 UF 25V IC501 I1KA98R050 IC KIA78R05PI
C423 P4J7F3474J CMPP 0.47 UF 250V PMS ! IC502 0002500450 PHOTO COUPLER TLP621(GR) ! C424 P4N8FJ912H CMPP 0.0091UF 1.25KV IC601 I06FC61206 IC M61206FP ! C431 E02LTD2R2M CE 2.2 UF 250V IC1001 I56F57071A IC OEC7071A ! C433 E02LT3331M CE 330 UF 25V ! IC1003 IC7J0311A0 IC R3111N311A/C-TR
C451 P61101224J CMPL 0.22 UF 100V TF or IC1099 A5A304C015 IC S-24C04BDP-LA
! C506 P2472B224M CMP 0.22UF 275V PHE840 ! C507 C0JTB0513K CC 0.001 UF 500V B Q403 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK
C509 E51CGC471M CE 470 UF 200V Q404 TPAAD05003 COMPOUND TRANSISTOR KRA104SRTK ! C511 E02LT3471M CE 470 UF 25V ! Q405 TC5T01627Y TRANSISTOR SILICON 2SC1627_Y(TPE2)
C517 C03L0R7H3K CC 0.0022UF 2KV R ! Q406 TD30026270 TRANSISTOR SILICON 2SD2627LS-CBC11 ! C521 E62NFC221M CE 220 UF 200V Q407 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S ! C530 CB3930MQ2K CC 470 PF 250V Q505 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
C535 C03L0R713K CC 0.001 UF 2KV R Q507 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) ! C539 CB3930ML3M CC 0.0033UF 250V ! Q510 TJXG5NC500 FET STP5NC50FP
C541 C03L0R7W2K CC 820 PF 2KV R ! Q511 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
C801 C0PWB07H3K CC 0.0022UF 2KV B Q601 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
D401 D2WT011E10 DIODE SILICON 11E1-EIC Q603 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT ! D402 D2WXN49370 DIODE SILICON 1N4937 Q604 TDWT00400E TRANSISTOR SILICON 2SD400E
D403 D97U03001B DIODE,ZENER MTZJ30B T-77 or Q605 TDWT00400E TRANSISTOR SILICON 2SD400E
D404 D97U03001B DIODE,ZENER MTZJ30B T-77 or Q608 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK
D405 D2WT011E10 DIODE SILICON 11E1-EIC Q611 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK
D407 D1VT001330 DIODE,SILICON 1SS133T-77 Q612 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK ! D408 D94TA27011 DIODE ZENER HZ27-1L TD ! Q804 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC ! D409 D94TA11B13 DIODE ZENER HZ11B3L TD ! Q805 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC
D410 D97U06R81B DIODE,ZENER MTZJ6.8B T-77 ! Q806 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC
D411 D1VT001330 DIODE,SILICON 1SS133T-77 Q1003 0002700530 PHOTO COUPLER RPI-352Q01R ! D412 D2WXN49370 DIODE SILICON 1N4937 Q1004 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK ! D413 D2WXN49370 DIODE SILICON 1N4937 ! Q1005 0002700590 PHOTO COUPLER RPI-301 ! D501 D97U01001B DIODE,ZENER MTZJ10B T-77 Q1007 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK ! D505 D2WXB290S0 DIODE SILICON SB290S Q1008 TNAAB05003 COMPOUND TRANSISTOR KRC102SRTK
D507 D2WXB290S0 DIODE SILICON SB290S Q1009 0002700530 PHOTO COUPLER RPI-352Q01R
D508 D1VT001330 DIODE,SILICON 1SS133T-77 Q1011 0000M00390 PHOTO TRANSISTOR ST-304L ! D510 D2WXRU2AM0 DIODE SILICON RU2AM-EIC Q1013 0000M00390 PHOTO TRANSISTOR ST-304L ! D512 D2WXB290S0 DIODE SILICON SB290S Q1023 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S
D513 D1VT001330 DIODE,SILICON 1SS133T-77 Q1024 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK
D514 D1VT001330 DIODE,SILICON 1SS133T-77 Q4001 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) ! D515 D97U03301B DIODE,ZENER MTZJ33B T-77 or Q4002 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
! D517 D28TELS2N2 DIODE RECTIFER 10ELS2N-TA1B2 Q4005 TAATA12660 TRANSISTOR,SILICON KTA1266-AT(Y,GR)
D518 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4006 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT ! D519 D2WXB290S0 DIODE SILICON SB290S Q4007 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S
D520 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4009 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
D521 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4010 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
D528 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 Q4011 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S
D530 D2WTRM11C0 DIODE SILICON RM11C-EIC Q4012 T8YJ2412K0 TRANSISTOR SILICON 2SC2412KT146 R,S
D533 D1VT001330 DIODE,SILICON 1SS133T-77 ! D534 D97U01801B DIODE,ZENER MTZJ18B T-77 L401 021679472K COIL 4.7 MH ! D535 D97U01801B DIODE,ZENER MTZJ18B T-77 ! L502 029T000092 COIL,LINE FILTER 1R0A103F24
P611T1224J CMPL 0.22 UF 100V TF IC4001 I03F301MN0 IC LA71201M-N-MPB
TRANSISTORS
DIODES
D97U03301C DIODE,ZENER MTZJ33C T-77 Q606 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
D97U03301C DIODE,ZENER MTZJ33C T-77 Q609 TNAAJ05003 COMPOUND TRANSISTOR KRC111SRTK
D97X03301B DIODE,ZENER MTZJ-33B-T72 Q4003 TPAAC05002 COMPOUND TRANSISTOR KRA103SRTK
Q602 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT
COILS &TRANSFORMERS
J3-1
Page 58
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION
COILS &TRANSFORMERS MISCELLANEOUS
!L503 028R140031COIL,DEGAUSS 8R140031 !FB401 043213015RTRANSFORMER,FLYBACK 3213015R
L601 0331920018 COIL 3192001 FH501 06710T0006HOLDER,FUSE EYF-52BC
L603 02167F470J COIL 47 UH FH502 06710T0006HOLDER,FUSE EYF-52BC
L607 021LA6220KCOIL 22 UH FH503 06710T0006HOLDER,FUSE EYF-52BC
L612 021LA66R8KCOIL 6.8 UH FH504 06710T0006HOLDER,FUSE EYF-52BC
L801 021673221K COIL 220 UH OS753 077Q037002REMOTE RECEIVER PIC-37143TH5
L1001 021LA62R2KCOIL 2.2 UH !SP351 070W535002SPEAKER NF-16D27W
L1003 02167H220KCOIL 22 UH !TH501 DF5EL3R0A0DEGAUSS ELEMENT ZPB45BL3R0A
L4001 02167F220J COIL 22 UH TM101 076R0CG010TRANSMITTER R25-1195 or
L4003 02167F101J COIL 100 UH 076N0CG010TRANSMITTER RC-CG010
L4005 02167F470J COIL 47 UH !TU601 0145K00055TUNER,VHF-UHF TECC1040PG32D
L4006 02167F470J COIL 47 UH !V801 098Y1404B9CRT W/DY A34JXV70X53N45
L4009 02167F101J COIL 100 UH X602 100CT3R505CRYSTAL HC-49/C 3.579545MHz
T401 045009003J TRANS,HORIZONTAL DRIVEETH09K14BZ X1001 100CT01207CRYSTAL HC-49/U-S 12MHz !T501 0481290804 TRANSFORMER,SWITCHING81290804 X1002 100DA32R01CRYSTAL DT-26 32.768KHz
T4001 031626009RCOIL,BIAS OSC 1626009 X4001 100CT3R502CRYSTAL HC-49/U 3.579545MHz
JACKS
!J351 060G131014RCA JACK HTJ-035-28A RESISTOR
J701 060Q401075RCA JACK AV2-24D-5 RC...................CARBON RESISTOR
!J801 066X120014 SOCKET,CRT HPS3200-010501
SWITCHES
SW751 0504101T34 SWITCH,TACT EVQ21505R CC...................CERAMIC CAPACITOR
SW791 0504101T34 SWITCH,TACT EVQ21505R CE...................ALUMI ELECTROLYTIC CAPACITOR
SW792 0504101T34 SWITCH,TACT EVQ21505R CP...................POLYESTER CAPACITOR
SW793 0504101T34 SWITCH,TACT EVQ21505R CPP..................POLYPROPYLENE CAPACITOR
SW794 0504101T34 SWITCH,TACT EVQ21505R CPL..................PLASTIC CAPACITOR
SW795 0504101T34 SWITCH,TACT EVQ21505R CMP.................METAL POLYESTER CAPACITOR
SW796 0504101T34 SWITCH,TACT EVQ21505R CMPL...............METAL PLASTIC CAPACITOR
SW797 0504101T34 SWITCH,TACT EVQ21505R CMPP...............METAL POLYPROPYLENE CAPACITOR
SW798 0504101T34 SWITCH,TACT EVQ21505R
SW799 0504101T34 SWITCH,TACT EVQ21505R
SW1001 0508A11002 SWITCH(LEAF) MXS01380MPP0
CAPACITORS
VARIABLE RESISTORS
VR401 V1263H3BT7VOLUME,SEMI FIXED RH0683CJ3R
VR502 V1163L2BTCVOLUME,SEMI FIXED EVNCYAA03BY2
P.C.BOARD ASSEMBLIES
PCB010 A5A304C010PCB ASS'Y VMA227A
PCB030 A5A304C030PCB ASS'Y TEXA28A
PCB110 A5A304C110PCB ASS'Y TCA377A
MISCELLANEOUS
ANT001 125C108027ANTENNA ROD T4-216BNK-BK
B402 024HT03553CORE,BEADS W5RH3.5X5X1.0
B403 024HT03553CORE,BEADS W5RH3.5X5X1.0
B501 024A8407C3CORE,BEADS BL02RN2-R62T2
B503 024HT03553CORE,BEADS W5RH3.5X5X1.0
B602 024HT03553CORE,BEADS W5RH3.5X5X1.0
B604 024HT03564CORE,BEADS W4BRH3.5X6X1
CD351 06CH27090ACORD CONNECTOR CH27090A
CD352 06CH12435ACORD CONNECTOR CH12435A !CD501 120R414903CORD AC BUSH 0R414903
CD757 06CH2A019ACORD CONNECTOR CH2A019A
CD801 06CU82039ACORD CONNECTOR SM1098-009-1A
CD803 06CH012101CORD CONNECTOR CH012101
CD851 WHL6032038FLAT CABLE AWG26 10C BLACK 320MM
CD852 06CH01408ACORD EIS CONNECTOR CH01408A
CF601 1022T45R72FILTER,SAW SAF45MFY220ZR
CF603 1011T4R504FILTER,CERAMIC EFCT4R5YS5A
CF604 1011T4R517FILTER,CERAMIC EFCT4R5MW5
CP351 0694260139 CONNECTOR PCB SIDE 173979-6
CP353 0694270139 CONNECTOR PCB SIDE 173979-7 !CP401 069S450089 CONNECTOR PCB SIDE A1561WV2-A5P !CP502 069S420110 CONNECTOR PCB SIDE A1561WV2-2P
CP504 069W01001ACONNECTOR PCB SIDE 003P-2100
CP505 069W01001ACONNECTOR PCB SIDE 003P-2100
CP757 06942A0139 CONNECTOR PCB SIDE 1-173979-0
CP801 069S320010 CONNECTOR PCB SIDE A2361WV2-2P
CD4001 122L061501 CORD JUMPER 2L061501
CP1001 06972C0010CONNECTOR PCB SIDE TMC-J12P-B2
CP1003 0694240139 CONNECTOR PCB SIDE 173979-4
CP4001 0697240600 CONNECTOR PCB SIDE TOC-C04X-B1
CP4002 069J760029 CONNECTOR PCB SIDE IMSA-9604S-06Z14
CP4003 0697120320 CONNECTOR PCB SIDE TMC-T02X-E1
CP851A 067U010049WIRE HOLDER B2013H02-10P
CP851B 067U010049WIRE HOLDER B2013H02-10P
CUS012 800WFAA008CUSHION C !F501 081PC05004FUSE 51MS050LCC !F502 081PC2R504FUSE 51MS025LCC
J3-2
Page 59
SPEC.NO.
O/R NO.
M5A3-04C
K1X5006
Page 60
MVT2135B Series E
SERVICE MANUAL
COLOR TELEVISION/VIDEO CASSETTE RECORDER
ORIGINAL
MFR’S VERSION C
Design and specifications are subject to change without notice.
Page 61
SERVICING NOTICES ON CHECKING
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathode­ray tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
6. AVOID AN X-RAY1. KEEP THE NOTICES
Safety is secured against an X-ray by consider­ing about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage pe­ripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathode­ray tube.
PERFORM A SAFETY CHECK AFTER
7. SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
Unplug the plug from the AC outlet.
2.
Remove the antenna terminal on TV and turn on the TV.
3.
Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter
[Note 1].
4.
If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Earphone jack
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
A1-1
Page 62
CONTENTS
SERVICING NOTICES ON CHECKING ..................................................................................
HOW TO ORDER PARTS .......................................................................................................
CONTENTS .................................................................................................................................
GENERAL SPECIFICATIONS....................................................................................................
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS............................................
2. REMOVAL OF DECK PARTS............................................................................................
3. REMOVAL OF ANODE CAP..............................................................................................
4. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC .................................................
KEY TO ABBREVIATIONS .....................................................................................................
SERVICE MODE LIST ............................................................................................................
PREVENTIVE CHECKS AND SERVICE INTERVALS ............................................................
WHEN REPLACING EEPROM (MEMORY) IC .....................................................................
SERVICING FIXTURES AND TOOLS .....................................................................................
PREPARATION FOR SERVICING .........................................................................................
MECHANICAL ADJUSTMENTS .............................................................................................
ELECTRICAL ADJUSTMENTS ...............................................................................................
BLOCK DIAGRAMS
TV ............................................................................................................................................
Y/C/AUDIO/CCD/HEAD AMP .................................................................................................
MICON/OPERATION/IN/OUT ................................................................................................
PRINTED CIRCUIT BOARDS
OPERATION............................................................................................................................
SYSCON/CRT .........................................................................................................................
SCHEMATIC DIAGRAMS
Y/C/AUDIO/CCD/HEAD AMP .................................................................................................
MICON .......................................................................................................................... ...........
IN/OUT .....................................................................................................................................
CHROMA/IF.............................................................................................................................
SOUND AMP ...........................................................................................................................
POWER ...................................................................................................................................
DEFLECTION ..........................................................................................................................
CRT..........................................................................................................................................
OPERATION ...........................................................................................................................
INTERCONNECTION DIAGRAM............................................................................................
WAVEFORMS .............................................................................................................................
MECHANICAL EXPLODED VIEWS...........................................................................................
CHASSIS EXPLODED VIEWS ...................................................................................................
MECHANICAL REPLACEMENT PARTS LIST .........................................................................
CHASSIS REPLACEMENT PARTS LIST..................................................................................
ELECTRICAL REPLACEMENT PARTS LIST ........................................................................
A1-1 A1-1 A2-1 A3-1~A3-4
B1-1 B2-1~B2-6 B3-1 B4-1, B4-2 C1-1, C1-2 C2-1 C3-1, C3-2 C4-1 D1-1 D1-1 D2-1~D2-4 D3-1~D3-5
E-1, E-2 E-3, E-4 E-5, E-6
F-1, F-2 F-3~F-6
G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 G-15, G-16 G-17, G-18 G-19, G-20 H-1, H-2 I1-1, I1-2 I2-1, I2-2 J1-1 J2-1 J3-1, J3-2
A2-1
Page 63
GENERAL SPECIFICATIONS
,
5oC
0oC
0oC
60oC
G-1 TV CRT CRT Size / Visual Size 13 inch / 335.4 mmV
G-2 VCR System VHS Player / Recorder
G-3 Tuning Broadcasting System US System M
G-4 Signal Video Signal Input Level 1 V p-p/75 ohm
G-5 Power Power Source AC 120V,60Hz
G-6 Regulation Safety UL
G-7 Temperature Operation
G-8 Operating Humidity Less then 80% RH G-9 On Screen Menu Yes
System CRT Type Normal
Color System NTSC Speaker 1Speaker
Sound Output MAX 1.5 W
System Video System NTSC
Hi-Fi STEREO No NTSC PB ­Deck DECK OVD-7
Heads Video Head 2Head
FM Audio Head No
Audio /Control Mono /Yes
Erase(Full Track Erase) Yes Tape Rec PAL ­Speed NTSC SP/SLP
Play PAL -
Fast Forward / Rewind Time (Approx.) FF:4'50"/REW:2'30"
Forward/Reverse NTSC or PAL-M SP/LP/SLP=3x,5x/7x,9x/9x,15x Picture Search Frame Advance ­Slow Speed -
System Tuner and System 1Tuner
Receive CH Destination US(w/CATV)
Intermediate Picture(FP) 45.75 MHz Frequency Sound(FS) 41.25 MHz
Preset CH Stereo/Dual TV Sound Tuner Sound Muting Yes
Audio Signal
Hi-Fi Audio Signal Dynamic Range : More than - dB
Power Consumption at AC 65 W at 120V 60Hz
Protector Power Fuse Yes
Display Menu Type Charactor
Deflection 90 degree Magnetic Field BV/BH +0.45G / +0.18G
Position Front Size 1.5 x 2.5 Inch Impedance 8 ohm
10%(Typical) 1.0 W
Loading System Front Motor 3
NTSC SP/LP/SLP
with Cassette T-120
Tuning System F-Synth Input Impedance VHF/UHF 75 ohm
CH Coverage
FP-FS 4.5 MHz
Output Level ­S/N Ratio (Weighted) 50dB Horizontal Resolution at SP Mode 220Lines Input Level Output Level S/N Ratio at SP (Weighted) 38dB
Harmonic Distortion at SP (1KHz) Typical
Frequency Response at SP 100Hz - 10kHz
at LP 100Hz - 6kHz
at SLP 100Hz - 4kHz
Wow And Flutter : Less than - %Wrms Channel Separation : More than - dB Harmonic Distortion : Less than - %
DC -
at DC ­Stand by (at AC) 5 W at 120V 60Hz Per Year -
Dew Sensor
Radiation FCC X-Radiation DHHS
Storage
2~69, 4A,A-5~A-1, A~I,
-8dBm/50Kohm
-
1.5 %
+
~ +4
-2
~ +
J~W
No No
No
W+1~W+84
A3-1
Page 64
GENERAL SPECIFICATIONS
Timer Rec Set Yes Channel Setup Yes
TV Setup Yes
Auto Repeat On/Off Yes System Setup Yes
Commercial Advance
Movie Advance
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry Clock / Date Yes CH/AV Yes Tape Counter(Linear Counter) Yes Tape Speed Yes Sleep Time Yes Stereo/Audio Output
Control Volume Yes Level Bright / Contrast / Sharpness / Color Yes
Tint Yes Bass/Treble/Balance Manual Tracking Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark)
Auto Tracking/Manual Tracking Yes Caption / Text Yes Index Muting Yes Hi-Fi Repeat Yes Zero Return DEW
G-10 OSD Language English French Spanish
OSD Language Setting English
G-11 Clock,Timer Calendar 1990/1/1 ~ 2081/12/31
and Timer Timer Events 8 Program/ 1 Month Back-up One Touch Recording Max Time 5 Hours
OTPB Valid Time Sleep Timer Max Time 120
On/Off Timer Program(On Timer / Off Timer) 1 Auto Shut Off No Signal 15
Timer Back-up (at Power Off Mode) 5
G-12 Remote Unit RC-CG
Control Glow in Dark Remocon Yes
Power Source Voltage(D.C) 3V
Total Keys 41 Keys Power Yes
TV/CATV Yes Auto CH Memory Yes Add/ Delete Yes Guide CH Set
V-chip Set Yes On/Off Timer Set Yes Picture Yes Audio Sap On/Off
Clock Set Yes Language Yes Auto Clock On/Off Yes Standard Time Yes Daylight Saving Time Yes
Marking On/Off Blueback On/Off Playback Auto/Manual Unmarked Tape
Go To Movie Go To Preview
Bilingal SAP
Yes
Step 10
No Operation -
UM size x pcs UM-4 x 2 pcs
1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes
A3-2
No
No No
No No No No No No No No No
No No No
No
No
No
No No
No Min Min Program Min
Sec
Keys
Page 65
GENERAL SPECIFICATIONS
0 Yes CH Up Yes CH Down Yes Volume Up Yes Volume Down Yes Input Select Yes Play Yes F.Fwd Yes Rew Yes Pause/Still Yes Stop Yes Rec/OTR Yes Eject Yes Counter Reset Yes Speed Yes Timer Rec Yes TV Monitor Yes Quick View Yes Program Yes Slow Auto Tracking Yes Set/Tracking+ Yes Set/Tracking - Yes Menu Yes Enter Yes Cancel Yes Call Yes TV/Caption/Text Yes Sleep Timer Yes Muting Yes Zero Return Yes CM Skip Yes Audio Select
G-13 Features Auto Head Cleaning Yes
Auto Tracking Yes HQ (VHS Standard High Quality) Yes Auto Power On, Auto Play, Auto Rewind, Auto Eject Yes VIDEO PLUS+(SHOWVIEW,G-CODE) Auto Clock Yes Forward / Reverse Picture Search Yes Reverse Slow One Touch Playback Auto CH Memory Yes Closed Caption Yes TV Auto Shut off Function Yes End Call Index Search SQPB CATV Yes CM Skip(30sec x 6 Times) Yes Comb Filter TV Monitor Yes Program Extend Choke Coil Energy Star Yes Protect of FBT Leak Curcuit Dirty Head V-chip USA V-chip Yes
CANADA V-chip Zero Return Yes CM Advance Movie Advance
G-14 Accessories Owner's Manual Language English/Spanish
w/Guarantee Card Remote Control Unit Yes Battery
UM size x pcs -
No
No
No
No No
No No No
No
No No
No No
No
No No
No
No
Rod Antenna Yes
Poles 1 pole
Terminal F type
w/300 ohm to 75 ohm Antenna Adapter Loop Antenna
Terminal ­U/V Mixer 300 ohm to 75 ohm Antenna Adapter Antenna Change Plug
A3-3
No No
No No No
Page 66
GENERAL SPECIFICATIONS
DC Car Cord (Center+) AC Plug Adapter AC Cord AV Cord (2Pin-1Pin) Guarantee Card Yes Registration Card ESP Card Warning Sheet Dew/AHC Caution Sheet Quick Set-up Sheet Circuit Diagram Service Facility List Important Safeguard
G-15 Interface Switch Power Yes
G-16 Set Size Approx. W x D x H (mm) 362 x 370.5 x 382 G-17 Weight Net (Approx.) 11.0
G-18 Carton Master Carton
G-19 Cabinet Material Cabinet Front PS 94V0/DECABROM
Informatin Sheet
Play Yes
Pause/Still
System Select
One Touch Playback
Channel Up Yes
Channel Down Yes
F.FWD/Cue Yes
Eject/Stop Yes
Main Power SW
Volume Up Yes
Volume Down Yes
Rew/Rev Yes
Rec/OTR Yes
Indicator Power
Key Light up Rec/OTR
Terminals Front Video Input RCA x 1
Rear Video Input
Gift Box Yes
Drop Test Natural Dropping At
Container Stuffing(40' container) 700
Input Select
Rec/OTR Red
T-Rec Red
On Timer
CS
One Touch Playback
Play
Audio Input RCA x 1
Other Terminal Head Phone(Stereo & Mono, 3.5mm)
Audio Input
Video Output
Audio Output
Euro Scart
Diversity
Ext Speaker W
DC Jack 12V(Center +)
VHF/UHF Antenna Input
AC Inlet
Gross (Approx.) 12.5
Content -
Material -
Dimensions W x D x H(mm) -
Description of Origin -
Material Double/White
Dimensions W x D x H(mm) 423 x 447 x 443
Design As per Buyer's
Description of Origin Yes
Height (cm) 62
Cabinet Rear PS 94V0/DECABROM
F Type
No No No No
No No No No No No No No No
No No No
No
No No
No No No No No
No No No No No No No No
No
(24.3 lbs) (27.6 lbs) No
1 Corner / 3 Edges / 6 Surfaces
Sets
A3-4
Page 67
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
Remove the 5 screws 1.
2.
Remove the AC cord from the AC cord hook 3.
3.
Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1
1
1
1
3
Back Cabinet
1
1-2: CRT PCB (Refer to Fig. 1-2) CAUTION: BEFORE REMOVING THE ANODE CAP,
DISCHARGE ELECTRICITY BECAUSE IT CONTAINS HIGH VOLTAGE. BEFORE ATTEMPTING TO REMOVE OR REPAIR ANY PCB, UNPLUG THE POWER CORD FROM THE AC SOURCE.
1.
Remove the Anode Cap. (Refer to REMOVAL OF ANODE CAP)
2.
Disconnect the following connectors: (CP801 and CP851B).
3.
Remove the CRT PCB in the direction of arrow.
CRT PCB
Front Cabinet
Fig. 1-1
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
1.
Remove the 2 screws 1.
2.
Disconnect the following connectors: (CP757, CP351, CP401 and CP502).
3.
Unlock the support 2.
4.
Remove the TV/VCR Block in the direction of arrow.
Front Cabinet
1
TV/VCR Block
1
2
UP TO RELEASE
1-4: DECK CHASSIS AND SYSCON PCB
(Refer to Fig. 1-4)
1.
Remove the screw 1.
2.
Remove the screw 2.
3.
Remove the screw 3.
4.
Remove the Deck Shield Plate in direction of arrow (A).
5.
Remove the screw 4.
6.
Remove the Cover Light Plate in direction of arrow (C).
7.
Remove the 3 screws 5.
8.
Disconnect the following connectors: CP1001, CP4001, CP4002 and CP4003).
9.
Remove the Deck Chassis in the direction of arrow (B).
10.
Remove the screw 6.
11.
Remove the Syscon PCB in the direction of arrow (C).
1
5
5
(A)
3
2
Deck Shield Plate
5
Fig. 1-3
Fig. 1-2
B1-1
Deck Chassis
(B)
6
4
(C)
Syscon PCB
Cover Light Plate
Deck Holder
Fig. 1-4
Page 68
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports 1.
1.
Slide the 2 supports 2 and remove the Top Bracket.
2.
NOTE
1. After the installation of the Top Bracket, bend the
support 1 so that the Top Bracket is fixed.
Top Bracket
1
Top Bracket
2
Main Chassis
2
Main Chassis
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the front side.
1.
Push the Locker R to remove the Cassette Side R.
2.
Remove the Cassette Side L.
3.
Main Chassis
Cassette Side R
1
Fig. 2-1
Locker R
NOTE
1.2.In case of the Locker R installation, check if the two positions of Fig.2-3-B are correctly locked. When you install the Cassette Side R, be sure to move the Locker R after installing.
Locker R
Check if these
Cassette Side R
positions are locked.
Fig. 2-3-B
2-4: LINK UNIT (Refer to Fig. 2-4)
Set the Link Unit to the Eject position.
1. Unlock the support 1.
2. Remove the (A) side of the Link Unit first, then remove
3. the (B) side.
Main Chassis
Link Unit
Link Ass'y
Cassette Side L
Main Chassis
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring.
1. Unlock the 4 supports 1 and then remove the Cassette
2. Side L/R. Unlock the support 2 and then remove the Locker R.
3.
Locker Spring
1
1
2
Cassette Holder
Locker R
1
1
(A)
1
(B)
Link Unit
Main Chassis
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Extend the support 1.
1. Remove the Link Lever.
2. Remove the Flap Lever.
3.
1
Flap Lever
Link Lever
Fig. 2-4
Fig. 2-5
Cassette Side R
Cassette Side L
Fig. 2-3-A
B2-1
Page 69
DISASSEMBLY INSTRUCTIONS
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw 1.
1. Remove the Loading Motor.
2. Remove the Worm.
3.
Loading Motor
Worm
Main Chassis
• Screw Torque: 3 ± 0.5kgf•cm
1
Fig. 2-6-A
NOTE
1.2.In case of the Worm installation, check if the value of the Fig. 2-6-B is correct.
In case of the Loading Motor installation, hook the wire on the Cassette Opener as shown Fig. 2-6-C.
Tension Arm Ass'y
Tension Connect
Tension Spring
2
4
1
3
Tension Holder
Fig. 2-7-A
1
Tension Band
Tension Arm Ass'y
Fig. 2-7-B
19.2 ± 0.1mm
Safety surface for pressing of the insert.
Loading Motor
Cassette Opener
Fig. 2-6-B
Fig. 2-6-C
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the
1. Tension Holder hook is set to the position of Fig. 2-7-A to move the Tension Arm Ass'y. Remove the Tension Spring.
2. Unlock the 2 supports 1 and remove the Tension
3. Band. Unlock the support 2 and remove the Tension Arm
4. Ass'y. Unlock the support 3 and remove the Tension
5. Connect. Float the hook 4 and turn it clockwise then remove the
6. Tension Holder.
B2-2
NOTE
1.
In case of the Tension Band installation, note the direction of the installation. (Refer to Fig. 2-7-C)
2.
In case of the Tension Band installation, install correctly as Fig. 2-7-D.
3.
In case of the Tension Connect installation, install as the circled section of Fig. 2-7-E.
Tension Connect
Tension Band
Fig. 2-7-C
[OK]
[NG]
Tension Connect
Tension Connect
Tension Band
Tension Band
Fig. 2-7-D
Tension Connect
Main Chassis
Fig. 2-7-E
Page 70
DISASSEMBLY INSTRUCTIONS
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring.
1. Turn the T Brake Arm clockwise and bend the hook
2. section to remove it. Unlock the 2 supports 1 and remove the T Brake
3. Band.
Idler Gear
S Reel
Idler Arm Ass'y
(B)
T Brake Band
Hook section
1
1
T Brake Arm
T Brake Spring
Fig. 2-8-A
NOTE
1. In case of the T Brake Band installation, install correctly as Fig. 2-8-B.
[OK]
T Brake Band
[NG]
T Brake Band
T Brake Arm
T Brake Arm
(A) T Reel
1
(A)
1
Fig. 2-9-A
NOTE
1.2.In case of the S Reel and T Reel installation, check if the correct parts are installed. (Refer to Fig. 2-9-B)
In case of the Idler Arm Ass'y installation, install correctly as Fig. 2-9-C. And also set it so that the section "B" of Fig. 2-9-A is placed under the Main Chassis tab.
Fig. 2-8-B
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel.
1. Remove the 2 Polyslider Washers 1.
2. Remove the Idler Arm Ass'y and Idler Gear.
3.
NOTE
Take care not to damage the gears of the S Reel and T
1. Reel. The Polyslider Washer may be remained on the back of
2. the reel. Take care not to damage the shaft.
3. Do not touch the section "A" of S Reel and T Reel. (Use
4. gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains on it. When you install the reel, clean the shaft and grease it
5. (FG-84M). (If you do not grease, noise may be heard in FF/REW mode.) After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
[OK]
[NG]
Clutch Gear
Clutch Gear
Big Hole (S Reel)
Small Hole (T Reel)
Fig. 2-9-B
Idler Arm Ass'y
Idler Arm Ass'y
Fig. 2-9-C
B2-3
Page 71
DISASSEMBLY INSTRUCTIONS
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support 1 and remove the Cassette
1. Opener. Remove the Pinch Roller Block and P5 Arm Ass'y.
2.
1
Cassette Opener
Pinch Roller Block
P5 Arm Ass'y
Main Chassis
Fig. 2-10-A
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1. In case of the Pinch Roller Block and the Pinch Roller
2. Cam installation, install correctly as Fig. 2-10-B.
Pinch Roller Block
P5 Arm Ass'y
Can be seen the hole of the Main Cam.
Can be seen the hole of the Pinch Roller Cam.
Fig. 2-10-B
2-11: A/C HEAD (Refer to Fig. 2-11-A)
Remove the screw 1.
1. Remove the A/C Head Base.
2. Remove the 3 screws 2.
3. Remove the A/C Head and A/C Head Spring.
4.
NOTE
1.
Do not touch the A/C Head. (Use gloves.)
2.
When you install the A/C Head Spring, install as shown in Fig. 2-11-B.
3.
When you install the A/C Head, tighten the screw (1) first, then tighten the screw (2), finally tighten the screw (3).
(3)
(1)
2
2
(2)
2
A/C Head
Spring Position
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw 1.
1. Remove the FE Head.
2.
1
FE Head
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-12
2-13: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support 1 and remove the AHC Ass'y.
1. Disconnect the following connector:
2. (CD2001) Remove the 3 screws 2.
3. Remove the Cylinder Unit Ass'y.
4.
NOTE
When you install the Cylinder Unit Ass'y, tighten the
1. screws from (1) to (3) in order while pulling the Ass'y toward the left front direction.
Cylinder Unit Ass'y
AHC Ass'y
1
1
• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)
A/C Head Spring
A/C Head Base
Fig. 2-11-A
B2-4
• Screw Torque: 3 ± 0.5kgf•cm
(3)
(2)
(1)
2
2
2
Fig. 2-13
Page 72
DISASSEMBLY INSTRUCTIONS
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A)
Remove the Capstan Belt.
1. Remove the 3 screws 1.
2. Remove the Capstan DD Unit.
3.
2-15:
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A)
Remove the E-Ring 1, then remove the Main Cam.
1. Remove the E-Ring 2, then remove the Pinch Roller
2. Cam and Joint Gear.
1
Capstan Belt
Capstan DD Unit
1
1
• Screw Torque: 4 ± 0.5kgf•cm
1
Fig. 2-14-A
NOTE
1.
In case of the Capstan DD Unit installation, apply the silicon bond (TSE3843-W) on the position Fig. 2-14-B correctly. (If no silicon bond applied, abnormal noise will be heard on the deck operation.)
(Refer to Fig. 2-14-B, C)
Applied position of silicon bond
Main Cam
2
Pinch Roller Cam
Joint Gear
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam
1. installation, install them as the circled section of Fig. 2­15-B so that the each markers are met. (Refer to Fig.
2-15-B)
Pinch Roller Cam
Marker
Capstan DD Unit
Be careful not to apply the silicon bond to the Pinch Roller.
Fig. 2-14-B
Silicon Bond
Main Chassis
Fig. 2-14-C
Main Cam
Fig. 2-15-B
2-16: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-16-A)
1.2.Remove the E-Ring 1 and remove the Main Loading Gear. Remove the Main Rod, Tension Lever, Loading Arm S Ass'y and Loading Arm T Ass'y.
1
Main Rod
Tension Lever
Main Loading Gear
Loading Arm T Ass'y
Loading Arm S Ass'y
B2-5
Fig. 2-16-A
Page 73
DISASSEMBLY INSTRUCTIONS
NOTE
When you install the Loading Arm S Ass'y, Loading Arm
1. T Ass'y and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Marker
CASSETTE GUIDE POST/INCLINED BASE S/T
2-18:
UNIT/P4 CAP (Refer to Fig. 2-18-A)
Remove the P4 Cap.
1. Unlock the support 1 and remove the Cassette Guide
2. Post. Remove the Inclined Base S Unit and Inclined Base T
3. Unit.
Main Loading Gear
Marker
Loading Arm T Ass'y
2-17:
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/
Loading Arm S Ass'y
CLUTCH GEAR (Refer to Fig. 2-17-A)
Remove the Polyslider Washer 1.
1. Remove the Clutch Ass'y and Ring Spring.
2. Remove the Clutch Lever.
3. Remove the Coupling Gear, Coupling Spring and
4. Clutch Gear.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Coupling Spring
Clutch Lever
Fig. 2-16-B
Cassette Guide Post
Inclined Base T Unit
P4 Cap
Inclined Base S Unit
1
Fig. 2-18-A
NOTE
Do not touch the roller of Guide Roller.
1. In case of the P4 Cap installation, install it with parallel
2. for "A" and "B" of Fig. 2-18-B. In case of the Cassette Guide Post installation, install
3. correctly as the circled section of Fig. 2-18-C.
"A"
"B"
Clutch Gear
Fig. 2-17-A
NOTE
In case of the Clutch Ass'y installation, install it with
1. inserting the spring of the Clutch Ass'y into the dent of the Coupling Gear. (Refer to Fig. 2-17-B)
Clutch Ass'y
Coupling Gear
Fig. 2-17-B
B2-6
P4 Cap
[OK]
Cassette Guide Post
[NG]
Cassette Guide Post
Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
Page 74
DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work.
After turning the power off there might still be a potential
*
voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. Do not use pliers to loosen or tighten the Anode Cap
*
terminal, this may cause the spring to be damaged.
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 3-1.)
Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated Screwdriver, touch the support of the Anode with the tip of the Screwdriver. A cracking noise will be heard as the voltage is discharged.
GND on the CRT
3. After one side is removed, pull in the opposite direction to remove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 3-3.)
Location of Anode Cap
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of the
2. arrow and remove one side of the support.
(Refer to Fig. 3-2.)
Rubber Cap
Support
CRT
Fig. 3-1
Fig. 3-3
NOTE
Confirm that there is no dirt, dust, etc. at the spot where the cap was located.
2.3.Arrange the wire of the Anode Cap and make sure the wire is not twisted. Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Fig. 3-4
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5.
CRT
Support
Fig. 3-2
Support
CRT
5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
B3-1
Fig. 3-5
Page 75
DISASSEMBLY INSTRUCTIONS
4.
REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
REMOVAL
Put the Masking Tape (cotton tape) around the Flat
1. Package IC to protect other parts from any damage.
(Refer to Fig. 4-1.) NOTE
Masking is carried out on all the parts located within 10 mm distance from IC leads.
When IC starts moving back and forth easily after
3. desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 4-3.)
NOTE
Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.
Blower type IC desoldering machine
Masking Tape (Cotton Tape)
Heat the IC leads using a blower type IC desoldering
2.
IC
machine. (Refer to Fig. 4-2.)
NOTE
Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely.
Blower type IC desoldering machine
Fig. 4-1
Tweezers
IC
Fig. 4-3
Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided
5. Shield Wire. (Refer to Fig. 4-4.)
NOTE
Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
IC
Fig. 4-2
IC pattern
Fig. 4-4
B4-1
Page 76
DISASSEMBLY INSTRUCTIONS
INSTALLATION
Take care of the polarity of new IC and then install the
1. new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 4-5.)
Soldering Iron
Solder temporarily
Solder temporarily
Fig. 4-5
Supply the solder from the upper position of IC leads
2. sliding to the lower position of the IC leads.
(Refer to Fig. 4-6.)
When bridge-soldering between terminals and/or the
4. soldering amount are not enough, resolder using a Thin­tip Soldering Iron. (Refer to Fig. 4-8.)
Thin-tip Soldering Iron
IC
Fig. 4-8
Finally, confirm the soldering status on four sides of the
5. IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering.
NOTE
When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided
3.
Supply soldering from upper position to lower position
Shield Wire. (Refer to Fig. 4-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 4-6
Fig. 4-7
B4-2
Page 77
A
A/C ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS'Y AT AUTO A/V
B
BGP BOT BPF BRAKE SOL BUFF B/W
C
C CASE CAP CARR CH CLK CLOCK (SY-SE) COMB CONV CPM CTL CYL CYL-M CYL SENS
D
DATA (SY-CE) dB DC DD Unit DEMOD DET DEV
E
E EF EMPH ENC ENV EOT EQ EXT
F
F FBC FE FF FG FL SW FM FSC FWD
G
GEN GND
H
H.P.F
KEY TO ABBREVIATIONS
:
Audio/Control
:
Automatic Color Control
:
Audio Erase
:
Automatic Frequency Control
:
Automatic Fine Tuning
:
Automatic Fine Tuning Detect
:
Automatic Gain Control
:
Amplifier
:
Antenna
:
Audio Playback
:
Automatic Phase Control
:
Assembly
:
All Time
:
Automatic
:
Audio/Video
:
Burst Gate Pulse
:
Beginning of Tape
:
Bandpass Filter
:
Brake Solenoid
:
Buffer
:
Black and White
:
Capacitance, Collector
:
Cassette
:
Capstan
:
Carrier
:
Channel
:
Clock
:
Clock (Syscon to Servo)
:
Combination, Comb Filter
:
Converter
:
Capstan Motor
:
Control
:
Cylinder
:
Cylinder-Motor
:
Cylinder-Sensor
:
Data (Syscon to Servo)
:
Decibel
:
Direct Current
:
Direct Drive Motor Unit
:
Demodulator
:
Detector
:
Deviation
:
Emitter
:
Emitter Follower
:
Emphasis
:
Encoder
:
Envelope
:
End of Tape
:
Equalizer
:
External
:
Fuse
:
Feed Back Clamp
:
Full Erase
:
Fast Forward, Flipflop
:
Frequency Generator
:
Front Loading Switch
:
Frequency Modulation
:
Frequency Sub Carrier
:
Forward
:
Generator
:
Ground
:
High Pass Filter
H.SW Hz
I
IC IF IND INV
K
KIL
L
L LED LIMIT AMP LM, LDM LP L.P.F LUMI.
M
M MAX MINI MIX MM MOD MPX MS SW
N
NC NR
O
OSC OPE
P
PB PB CTL PB-C PB-Y PCB P. CON PD PG P-P
R
R REC REC-C REC-Y REEL BRK REEL S REF REG REW REV, RVS RF RMC RY
S
S. CLK S. COM S. DATA SEG SEL SENS SER SI SIF SO SOL SP STB SW
:
Head Switch
:
Hertz
:
Integrated Circuit
:
Intermediate Frequency
:
Indicator
:
Inverter
:
Killer
:
Left
:
Light Emitting Diode
:
Limiter Amplifier
:
Loading Motor
:
Long Play
:
Low Pass Filter
:
Luminance
:
Motor
:
Maximum
:
Minimum
:
Mixer, mixing
:
Monostable Multivibrator
:
Modulator, Modulation
:
Multiplexer, Multiplex
:
Mecha State Switch
:
Non Connection
:
Noise Reduction
:
Oscillator
:
Operation
:
Playback
:
Playback Control
:
Playback-Chrominance
:
Playback-Luminance
:
Printed Circuit Board
:
Power Control
:
Phase Detector
:
Pulse Generator
:
Peak-to Peak
:
Right
:
Recording
:
Recording-Chrominance
:
Recording-Luminance
:
Reel Brake
:
Reel Sensor
:
Reference
:
Regulated, Regulator
:
Rewind
:
Reverse
:
Radio Frequency
:
Remote Control
:
Relay
:
Serial Clock
:
Sensor Common
:
Serial Data
:
Segment
:
Select, Selector
:
Sensor
:
Search Mode
:
Serial Input
:
Sound Intermediate Frequency
:
Serial Output
:
Solenoid
:
Standard Play
:
Serial Strobe
:
Switch
C1-1
Page 78
S
SYNC SYNC SEP
T
TR TRAC TRICK PB TP
U
UNREG
V
V VCO VIF VP V.PB VR V.REC VSF VSR VSS V-SYNC VT
X
X'TAL
Y
Y/C
KEY TO ABBREVIATIONS
:
Synchronization
:
Sync Separator, Separation
:
Transistor
:
Tracking
:
Trick Playback
:
Test Point
:
Unregulated
:
Volt
:
Voltage Controlled Oscillator
:
Video Intermediate Frequency
:
Vertical Pulse, Voltage Display
:
Video Playback
:
Variable Resistor
:
Video Recording
:
Visual Search Fast Forward
:
Visual Search Rewind
:
Voltage Super Source
:
Vertical-Synchronization
:
Voltage Tuning
:
Crystal
:
Luminance/Chrominance
C1-2
Page 79
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and
remocon key simultaneously. The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
Set Key Remocon Key Operations
VOL. (-) MIN
VOL. (-) MIN 1
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN 4
VOL. (-) MIN
VOL. (-) MIN
0
2
3
5
6
Releasing of V-CHIP PASSWORD.
Initialization of the factory. NOTE: Do not use this for the normal servicing.
If you set a factory initialization, the memories are reset such as the clock
setting, the channel setting, the POWER ON total hours, and PLAY/REC
total hours.
Horizontal position adjustment of OSD. NOTE: Also can be adjusted by using the Adjustment MENU. Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
Adjust the PG SHIFTER automatically. Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjust the PG SHIFTER manually. Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjusting of the Tracking to the center position. NOTE: Also can be adjusted by pressing the ATR button for more than 2 seconds during PLAY.
POWER ON total hours and PLAY/REC total hours are displayed on the screen. Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (CONFIRMATION OF HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
VOL. (-) MIN 8
VOL. (-) MIN 9
Method Operations
Press the ATR button on the remote control for more than 2 seconds during PLAY.
Make the short circuit between the test point of SERVICE and the GND.
Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
Adjusting of the Tracking to the center position. Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
The BOT, EOT and the Reel sensor do not work and the deck can be operated without a cassette tape. Refer to the "PREPARATION FOR SERVICING"
C2-1
Page 80
PREVENTIVE CHECKS AND SER VICE INTERVALS
The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.
Time Parts Name Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band T Brake Band
Clutch Ass'y
Idler Arm Ass'y
Capstan Shaft
Tape Running Guide Post
Cylinder Unit
: Clean : Check it and if necessary, replace it.
500
hours
1,000 hours
1,500 hours
2,000 hours
2,500 hours
Notes
Clean those parts in contact with the tape.
Clean the rubber, and parts which the rubber touches.
Replace when rolling becomes abnormal.
Clean the Head
CONFIRMATION OF HOURS USED
POWER ON total hours and PLAY/REC total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to "0".
The confirmation of using hours will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 5 seconds before Power On.
1.
Set the VOLUME to minimum.
2.
While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
3.
After the confirmation of using hours, turn off the power.
INIT 00 83 POWER ON
PLAY/REC
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
0010 0003
Initial setting content of MEMORY IC.
POWER ON total hours. PLAY/REC total hours.
C3-1
Page 81
PREVENTIVE CHECKS AND SERVICE INTERVALS
CLEANING
NOTE
After cleaning the heads with isopropyl alcohol, do not run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, damage may occur.
1. AUDIO CONTROL HEAD
Clean the Audio Control Head with the cotton stick soaked by alcohol. Clean the full erase head in the same manner. (Refer to the figure below.)
2. TAPE RUNNING SYSTEM
When cleaning the tape transport system, use the gauze moistened with isopropyl alcohol.
3. CYLINDER
Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol. Hold it to the cylinder head softly. Turn the cylinder head counterclockwise to clean it (in the direction of the arrow). (Refer to the figure below.)
NOTE
Do not exert force against the cylinder head. Do not move the chamois upward or downward on the head. Use the chamois one by one.
Audio Control Head
Cylinder Head
C3-2
Page 82
WHEN REPLACING EEPROM (MEMORY) IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1.
NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow
at least 5 seconds before Power On.
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 88 0A 62 63 43 14 34 09 51 38
9A
B2 92 93 00 00 00 15 08 00
10
06 29 01 17 10 60 32 3A DA D7
20 10 15 20 25 26 27 30 3A 3C 3E 40 41 42
28 29 2A 2C 2E 30 32 34 36 38
40 44 4D 4E 4F 50 51 52
43 45 46 47 48 49 4A 4B 4C
53 55 56 57 58 59 5A 5B 5C
50 60 --- --- --- --- --- ---
Enter DATA SET mode by setting VOLUME to minimum.
1. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
2. ADDRESS and DATA should appear as FIG 1.
54
63 64 66 69 6D 74 79 7C 7E 7F
Table 1
ADDRESS DATA
+A
+B +C +D +E +FINI 30 66 00 40 00 1000 A9 0F 94 3E 06 04
5D 5E 5F 60 61 62
INIT 00 83 POWER ON
PLAY/REC
0010 0003
Fig. 1
3.
ADDRESS is now selected and should "blink". Using the PLAY or STOP button on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using PLAY or STOP until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
The unit will now have the correct DATA for the new MEMORY IC.
C4-1
Page 83
SERVICING FIXTURES AND TOOLS
(For 2 heads model)
VHS Alignment Tape JG001 JG001A JG001Q JG001T
(VN S-LI6 )
2 2
(VN S-CO1 )
2
(VN S-LI6 H) (VN S-X6 )
3
2
Screwdriver
JG154 Cable
(For 4 heads model)
3
3
3
VHS Alignment Tape JG001B JG001I JG001P JG001S
1
(VN S-LI6 ) (VN S-CO1 )
1 1
(VN S-LI6 H)
1
(VN S-X6 )
3
3
3
3
JG002B JG002E
JG002F
JG024AJG022 Master PlaneJG153 X Value Adjustment
Adapter Dial Torque Gauge (10~90gf•cm) (60~600gf•cm)
Reel Disk Height Adjustment Jig
JG005 Post Adjustment
Screwdriver Part No. SV-TG0-030-000 (small)
JG100A Torque Tape
(VHT-063)
Tentelometer
Ref. No.
JG001
JG001A
JG001Q
JG001T JG001B
JG001I JG001P JG001S JG002B JG002E JG002F
JG005 JG153
JG022 JG024A JG100A
JG154
Part No.
APJG001000 APJG001A00
APJG001Q00
APJG001T00 APJG001B00
APJG001I00 APJG001P00 APJG001S00 APJG002B00 APJG002E00 APJG002F00 APJG005000 APJG153000 APJG022000 APJG024A00 APJG100A00 APJG154000
Parts Name
VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 2 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) VHS Alignment Tape (For 4 heads model) Adapter Dial Torque Gauge (10~90gf•cm) Dial Torque Gauge (60~600gf•cm) Post Adjustment Screwdriver X Value Adjustment Screwdriver Master Plane Reel Disk Height Adjustment Jig Torque Tape (VHT-063) Cable
PREPARATION FOR SERVICING
Remarks
Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment Monoscope, 6KHz Color Bar, 1KHz Hi-Fi Audio X Value Adjustment VSR Torque, Brake Torque (S Reel/T Reel Ass'y) Brake Torque (T Reel Ass'y) VSR Torque, Brake Torque (S Reel) Guide Roller Adjustment X Value Adjustment Reel Disk Height Adjustment Reel Disk Height Adjustment Playback Torque, Back Tension Torque During Playback Used to connect the test point of SERVICE and GROUND
How to use the Servicing Fixture
1.
Unplug the connector CP757 and CP351, then remove the TV/VCR Block from the set.
2.
Remove the Operation PCB from the set, then connect it with the Syscon PCB. If necessary, connect CP351. (Front A/V Jack Input Terminal)
3.
Short circuit between TP1001 and Ground with the cable JG154.
(The BOT, EOT and the Reel Sensor do not work and the deck can be operated without a cassette tape.)
4.
In case of using a cassette tape, press the STOP/EJECT button to insert or eject a cassette tape. Turn on the power and re-check the cable before checking the trouble points.
D1-1
Page 84
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work.
• Place an object which weighs between 450g~500g on the Cassette Tape to keep it steady when you want to make the tape run without the Cassette Holder. (Do not place an object which weighs over 500g.)
CONFIRMATION AND ADJUSTMENT OF REEL
1-1:
DISK HEIGHT
1.
Turn on the power and set to the STOP mode.
2.
Set the master plane (JG022) and reel disk height adjustment jig (JG024A) on the mechanism framework, taking care not to scratch the drum, as shown in Fig. 1- 1-A.
3.
While turning the reel and confirm the following points. Check if the surface "A" of reel disk is lower than the surface "B" of reel disk height adjustment jig (JG024A) and is higher than the surface "C". If it is not passed, place the height adjustment washers and adjust to 10(+2, -0)mm.
4.
Adjust the other reel in the same way.
Master Plane (JG022)
Reel Disk Height Adjustment Jig (JG024A)
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
Set to the PLAY mode.
2.
Adjust the adjusting section for the Tension Arm position so that the Tension Arm top is within the standard line of Main Chassis.
3.
While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Fig. 1-2-A
Adjusting section for the Tension Arm position
Tension Band
Master Plane (JG022)
10(+0.2, -0)mm
Reel Disk
Height Adjustment Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
Reel Disk Height Adjustment Jig (JG024A)
(B)
(A)
Fig. 1-1-A
(C)
Fig. 1-1-B
The Tension Arm top will move to the inside direction of the Main Chassis.
Bend
The Tension Arm top will move to the outside direction of the Main Chassis.
Fig. 1-2-B
1-3: CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK
Load a video tape (T-120) recorded in standard speed
1. mode. Set the unit to the PLAY mode. Install the tentelometer as shown in Fig. 1-3. Confirm that
2. the meter indicates 20 ± 2gf in the beginning of playback.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
After confirmation and adjustment of Tension Post position (Refer to item 1-2), load the cassette type torque tape (JG100A) and set to the PLAY mode.
2.
Confirm that the right meter of the torque tape indicates 50~90gf•cm during playback in SP mode.
3.
Confirm that the left meter of the torque tape indicates 25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
D2-1
P1 Post
Guide Roller
Fig. 1-3
Page 85
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Install the Torque Gauge (JG002F) and Adapter (JG002B)
1. on the S Reel. Set to the Picture Search (Rewind) mode.
(Refer to Fig.1-4-B)
Then, confirm that it indicates 120~180gf•cm.
2.
NOTE
Install the Torque Gauge on the reel disk firmly. Press the REW button to turn the reel disk.
1-5: CONFIRMATION OF REEL BRAKE TORQUE
(S Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop
1. mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the S Reel.
2. Install the Torque Gauge (JG002F) and Adapter
3.
(JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
4.
(T Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop
1. mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A. Move the Idler Ass'y from the T Reel.
2. Install the Torque Gauge (JG002E) and Adapter
3.
(JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise.
Then, confirm that it indicates 30~50gf•cm.
4.
The position at FF mode.
Pinch Roller Block
Stop at this position.
Cassette
The position at STOP mode.
Capstan DD Unit
Cassette Holder Ass'y
Opener
Fig. 1-4-A
NOTE
If the torque is out of the range, replace the following parts.
Check item
1-4 1-5
S Reel side:
Replacement Part
Idler Ass'y/Clutch Ass'y
S Reel/Tension Band/Tension Connect/Tension Arm Ass'y
T Reel side:
T Reel/T Brake Band//T Brake Spring/T Brake Arm
2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the factory. Adjustment is not necessary as usual. When you replace the parts of the tape running mechanism because of long term usage or failure, the confirmation and adjustment are necessary.
2-1: GUIDE ROLLER
Playback the VHS Alignment Tape (JG001 or JG001B).
1.
(Refer to SERVICING FIXTURE AND TOOLS)
Connect CH-1 of the oscilloscope to TP4001 (Envelope)
2.
and CH-2 to TP1002 (SW Pulse). Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center. Trigger with SW Pulse and observe the envelope. (Refer
4.
to Fig. 2-1-A)
When observing the envelope, adjust the Adjusting
5.
Driver (JG005) slightly until the envelope will be flat. Even if you press the Tracking Button, adjust so that flatness is not moved so much. Adjust so that the A : B ratio is better than 3 : 2 as shown
6.
in Fig. 2-1-B, even if you press the Tracking Button to move the envelope (The envelope waveform will begin to decrease when you press the Tracking Button). Adjust the PG shifter during playback.
7.
(Refer to the ELECTRICAL ADJUSTMENTS)
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
Torque Gauge/Adapter (JG002F/JG002B)
S Reel
Torque Gauge/Adapter (JG002E/JG002B)
T Reel
Fig. 1-4-B
D2-2
CH-1 Envelope (TP4001)
CH-1 Track
CH-2 SW Pulse (TP1002)
Entrance Exit
Max
A
A : B 3 : 2
B
CH-2 Track
Fig. 2-1-A
Max
Fig. 2-1-B
Page 86
MECHANICAL ADJUSTMENTS
CONFIRMATION AND ADJUSTMENT OF AUDIO/ CONTROL HEAD
When the Tape Running Mechanism does not work well, adjust the following items.
1.
Playback the VHS Alignment Tape (JG001 or JG001B).
(Refer to SERVICING FIXTURE AND TOOLS)
2.
Confirm that the reflected picture of stamp mark is appeared on the tape prior to P4 Post as shown in Fig. 2-2-A. a)
When the reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared.
b)
When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a).
3.
Turn the screw 2 to set the audio level to maximum.
4.
Confirm that the bottom of the Audio/ Control Head and the bottom of the tape is shown in Fig. 2-2-C. c)
When the height is not correct, turn the screw 3 to adjust the height. Then, adjust the 1~3 again.
Audio/Control Head
Reflected picture of Stamp Mark
P4 Post
2-3:2-2:
TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
1.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
2.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1)
3.
Confirm and adjust the Audio/Control Head.
4.
(Refer to item 2-2)
Connect CH-1 of the oscilloscope to TP4001, CH-2 to
5.
TP1002 and CH-3 to HOT side of Audio Out Jack. Playback the VHS Alignment Tape (JG001S or
6.
JG001T). (Refer to SERVICING FIXTURE AND TOOLS) Press and hold the Tracking-Auto button on the remote
7.
control more than 2 seconds to set tracking to center. Set the X Value adjustment driver (JG153) to the 4 of
8.
Fig. 2-2-B. Adjust X value so that the envelope waveform output becomes maximum. Check if the relation between Audio and Envelope waveform becomes (1) or (2) of Fig. 2-3.
Envelope
(1) CH-3 Audio
(2)
Audio/Control Head
3
2
Audio/Control Head
Tape
Stamp Mark
1
4
Fig. 2-2-A
Fig. 2-2-B
0.25±0.05mm
Fig. 2-2-C
Fig. 2-3
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
Connect CH-1 of the oscilloscope to TP1002 and CH-2 to
1. the Hi-Fi Audio Out Jack. Playback the VHS Alignment Tape (JG001P or JG001Q).
2.
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote
3. control more than 2 seconds to set tracking to center. Press the Tracking Up button and count number of steps
4. which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). Press and hold the Tracking-Auto button on the remote
5. control more than 2 seconds to set tracking to center. Press the Tracking Down button and count number of
6. steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). If the difference are more than 3 steps, set the X Value
7. adjustment driver (JG153) to 4 of Fig. 2-2-B. Change the X Value and adjust it so that the value becomes within 2 steps.
D2-3
Page 87
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
3
4
5
6
2
1
8910
1. Tension Connect
2. Tension Arm
3. Guide Roller
4. Audio/Control Head
5. X value adjustment driver hole
6.
P4 Post
7.
T Brake Spring
8.
T Reel
9.
S Reel
10.
Adjusting section for the Tension Arm position
7
D2-4
Page 88
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies.
CAUTION
Use an isolation transformer when performing any service on this chassis.
Before removing the anode cap, discharge electricity because it contains high voltage.
When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors.
When replacing IC's and transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
On-Screen Display Adjustment
Unplug the AC plug for more than 5 seconds to set the
1. clock to the non-setting state. Then, set the volume level to minimum. Press the VOL. DOWN button on the set and the
2. Channel button (9) on the remote control simultaneously to appear the adjustment mode on the screen as shown in Fig. 1-1.
2. BASIC ADJUSTMENTS (VCR SECTION)
2-1: PG SHIFTER
1.
Connect CH-1 on the oscilloscope to TP1002 and CH-2 to pin 4 of CP1003.
2.
Playback the alignment tape. (JG001A)
3.
Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center.
4.
Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. If the indicator REC disappears, adjustment is completed.
(If the above adjustments doesn't work well:)
5.
Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears.
6.
When the REC indicator is blinking, press both VOL. DOWN button on the set and the channel button (4) on the remote control simultaneously and adjust the Tracking +/- button until the arising to the down of Head Switching Pulse becomes 6.5 ± 0.5H.
(Refer to Fig. 2-1-A, B)
7.
Press the Tracking Auto button.
TV
00 OSD 15
Use the Channel UP/DOWN button or Channel button
3. (0-9) on the remote control to select the options shown in Fig. 1-2. Press the MENU button on the remote control to end
4. the adjustments.
FUNCTION
NO.
OSD H
00
CUT OFF
01
RF AGC DELAY
02
VIF VCO
03
H VCO
04
H PHASE
05
V SIZE
06
V SHIFT
07
R DRIVE
08
B DRIVE
09
R CUT OFF
10
G CUT OFF
11
B CUT OFF
12
FUNCTION
NO.
BRIGHTNESS
13
CONTRAST
14
COLOR
15
TINT
16
SHARPNESS
17
FM LEVEL
18
LEVEL
19
SEPARATION 1
20
SEPARATION 2
21
TEST MONO
22
TEST STEREO
23
X-RAY TEST
24
Fig. 1-1
Fig. 1-2
CH-2
6.5H
CH-1
Fig. 2-1-A
CH-2
CH-1
6.5H
Fig. 2-1-B
2-2: VCO FREERUN
1.
Place the set with Aging Test for more than 10 minutes.
2.
Receive the VHF HIGH.
3.
Disconnect the Antenna while receiving the VHF HIGH and set to the Noise screen.
4.
Once turn off the Power and turn on the Power again.
5.
Approxi. 3 seconds later, input the Antenna again.
6.
Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351.
7.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO".
8.
Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V.
9.
After the 2.5V adjustment, countdown the VIF VCO step No. by 1 step with the VOL. DOWN button.
D3-1
Page 89
ELECTRICAL ADJUSTMENTS
2-3: RF AGC DELAY
1.
Receive the VHF HIGH (63dB).
2.
Connect the digital voltmeter between the pin 5 of CP351 and the pin 1 (GND) of CP351.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF AGC DELAY".
4.
Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.9V ± 0.05V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
Connect the digital voltmeter to the TP601.
2.
Set condition is AV MODE without signal.
3.
Using the remote control, set the brightness and contrast to normal position.
4.
Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
2-5: CUT OFF
1.
Adjust the unit to the following settings. R CUT OFF=128, G CUT OFF=128, B CUT OFF=128, BRIGHTNESS=128, CONTRAST=100
2.
Place the set with Aging Test for more than 15 minutes.
3.
Set condition is AV MODE without signal.
4.
Using the remote control, set the brightness and contrast to normal position.
5.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF".
6.
Adjust the Screen Volume until a dim raster is obtained.
2-6: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment.
1.
Place the set with Aging Test for more than 15 minutes.
2.
Receive the color bar pattern.
3.
Using the remote control, set the brightness and contrast to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R CUT OFF".
5.
Using the VOL. UP/DOWN button on the remote control, adjust the R CUT OFF.
6.
Press the CH. UP/DOWN button on the remote control to select the "R DRIVE", "B DRIVE", "G CUT OFF" or "B CUT OFF".
7.
Using the VOL. UP/DOWN button on the remote control, adjust the R DRIVE, B DRIVE, G CUT OFF or B CUT OFF.
8.
Perform the above adjustments 6 and 7 until the white color is looked like a white.
2-8: HORIZONTAL PHASE
1.
Receive the center cross signal from the Pattern Generator.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE".
4.
Press the VOL. UP/DOWN button on the remote control until the right and left screen size of the vertical line becomes the same.
2-9: VERTICAL SHIFT
1.
Receive the center cross signal from the Pattern Generator.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT".
4.
Check if the step No. V. SHIFT is "3".
5.
Adjust the VR401 until the horizontal line becomes fit to the notch of the shadow mask.
2-10: VERTICAL SIZE
1.
Receive the cross hatch signal from the Pattern Generator.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE".
4.
Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum.
2-11: SUB BRIGHTNESS
1.
Receive the monoscope pattern. (RF Input)
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (13) on the remote control to select "BRIGHTNESS".
4.
Press the VOL. UP/DOWN button on the remote control until the white 10% is starting to be visible
5.
Receive the monoscope pattern. (Audio Video Input)
6.
Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
2-7: FOCUS
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Turn the Focus Volume fully counterclockwise once.
4.
Adjust the Focus Volume until picture is distinct.
D3-2
Page 90
ELECTRICAL ADJUSTMENTS
2-12: SUB CONTRAST MANUAL
1.
Receive the color bar pattern. (RF Input)
2.
Using the remote control, set the brightness and contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (14) on the remote control to select "CONTRAST".
4.
Press the VOL. UP/DOWN button on the remote control until the contrast STEP No. becomes "100".
5.
Receive the color bar pattern. (Audio Video Input)
6.
Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
2-13: SUB TINT
1.
Receive the color bar pattern. (RF Input)
2.
Connect the oscilloscope to TP801.
3.
Using the remote control, set the brightness, contrast, color and tint to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "TINT".
5.
Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line.
(Refer to Fig. 2-2)
6.
Receive the color bar pattern. (Audio Video Input)
7.
Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5.
White 0%
100%
White 100%
2-15: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum.
(Refer to Fig. 2-4)
Red Level
Fig. 2-3
TV
"A"
Fig. 2-2
2-14: SUB COLOR
1.
Receive the color bar pattern. (RF Input)
2.
Connect the oscilloscope to TP803.
3.
Using the remote control, set the brightness, contrast, color and tint to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (15) on the remote control to select "COLOR".
5.
Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope.
6.
Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110 ± 10% of the white level. (Refer to Fig. 2-3)
7.
Receive the color bar pattern. (Audio Video Input)
8.
Press the INPUT SELECT button on the remote control to set to the AV mode. Then perform the above adjustments 2~6.
00 OSD 15
A
2-16: SUB SHARPNESS
1.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (17) on the remote control to select "SHARPNESS".
2.
Check if the step No. of SHARPNESS is "40".
3.
Press the AV button on the remote control to set to the AV mode. Then perform the above adjustments 1, 2.
2-17: H VCO
1.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "H VCO".
2.
Check if the step No. of H VCO is "4".
B
Fig. 2-4
D3-3
Page 91
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
CRT
L503
CP351
CP502
TU601
FB401
AC IN
TP1002
CP1003
CD757
TP4001
TP1001
CP757
VR502 VR401
TP601
CP4002
A/C HEAD
SYSCON PCB
CD351
CP851A
CRT
CP801
CD801
R802
J801
CRT PCB
TP801
TP803
R810
CP851B
OPERATION PCB
D3-4
CD352
SPEAKER
Page 92
ELECTRICAL ADJUSTMENTS
4.PURITY AND CONVERGENCE ADJUSTMENTS
NOTE
1.
Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments.
2.
Place the CRT surface facing east or west to reduce the terrestrial magnetism.
3.
Turn ON the unit and demagnetize with a Degauss Coil.
4-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 4-1) If the deflection yoke and magnet are in one body, untighten the screw for the body.
2.
Receive the green raster pattern from the color bar generator.
3.
Slide the deflection yoke until it touches the funnel side of the CRT.
4.
Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets.
5.
Switch the color bar generator from the green raster pattern to the crosshatch pattern.
6.
Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets.
7.
Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
8.
Adjust the crosshatch pattern to change to white by repeating steps 6 and 7.
4-2: PURITY NOTE
Adjust after performing adjustments in section 4-1.
1.
Receive the green raster pattern from color bar generator.
2.
Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide.
3.
Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green.
4.
Confirm red and blue colors.
5.
Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw.
DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW
4-3: STATIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-2.
1.
Receive the crosshatch pattern from the color bar generator.
2.
Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets.
3.
Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets.
4-4: DYNAMIC CONVERGENCE NOTE
Adjust after performing adjustments in section 4-3.
1.2.Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left.
(Refer to Fig. 4-2-a)
Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke.
(Refer to Fig. 4-2-b)
R G B
R G B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
WEDGE
WEDGE POSITION
R G B
Fig. 4-2-a
WEDGE
WEDGE
Fig. 4-2-b
R G B
6 POLE MAGNETS 4 POLE MAGNETS PURITY MAGNETS
Fig. 4-1
D3-5
Page 93
TV BLOCK DIAGRAM
MICON/
OPERATION/
IN/OUT
AT+5V_BACK UP
Y/C/AUDIO/
CCD/
HEAD AMP
SCL
SDA
AT+12V
TU_AUDIO TU_VIDEO
Y/C_AUDIO
TU601
1 4
5
11
SAW FILTER CF601
1
V. OUTPUT IC IC401 AN5522
THERMAL
Q602, Q603
REG.
Q601
BUFFER
CHROMA IC IC601 M61206FP
62
RF AGC OUT
1
VIF IN
64
VIF IN
54
60
AFT OUT
31
ACL/ABCL
63 48 56
IF AGC FILTER
IF AGC
52
EXT AUDIO IN
VIF APC FILTER
55 41
57
VREG VCC
VIF VIDEO OUT
5.7V REG OUT (FOR CPU)
Q606
NC
33
42
MCU RESET
REG.
Q604, Q605
REG.
39 46
5V REG
8.7V REG OUT
13
SW REG CONT
AT+12V
AT+5V
53
AUDIO OUT
SDA
SCL
FM DIRECT OUT
POWER ON CONT
V RAMP FEED BACK
FAST BLK
R OUT
G OUT
B OUT
V OUT
V PLUSE OUT
1
50 10
5
27 14 15
16
17
29
21
AMP
VCC
2
PROTECTION
PUMP UP
3
5
Q407
H-CONTROL
SW
7
Q405
H-DRIVE
Q406
H. OUTPUT
FB401
1
COL
2
+B
6
E180
7
ABL
9
AFC
10
HEA
E180V
3
HV
F S
H_CTL
J801
F 7
3
7 9
MICON/ OPERATION/ IN/OUT
DY
V801
CRT
Q804
BLUE AMP
Q806
RED AMP
Q805
GREEN
AMP
X' TAL
32
12
X602
3.579545MHz
F502
MICON/
OPERATION/
IN/OUT
L503
DEGAUSS COIL
AC IN
X-RAY
X-RAY_TEST
2
2
1
1
F501
Q507
FEED BACK
SW.
VR502
+B ADJ
Q404
Q403
TH501
SW.
SW.
D518, D520, D521, D530
RECTIFIER
FEED BACK
IC502 TLP621(GR)
Q511
SWITCHING
Q510
SWITCHING
T501
8
5
11 13
14
16
3
5V REG IC
IC501
E-1 E-2
KIA78R05PI
FBP IN
H. PLUSE OUT
6
7
AT+12V
UNREG+8V
POWER_FAIL
H OUT
P. CON+5V
SOUND AMP IC IC351 AN7511
2
5
1
Q609
6
8
4
VCR_POWER-H TV_POWER-H TV_A_MUTE
Q608
CUT OFF SW
POWER ON
SW.
J351
HEAD
JACK
CD352
SP+ SP–
POWER OFF_H
TV_POWER-H
SP351 SPEAKER
MICON/ OPERATION/ IN/OUT
VD HD
OSD_BLK OSD_B OSD_R OSD_G
AFT_M
MICON/ OPERATION/ IN/OUT
Page 94
X4001
3.579545MHz
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
TV
FE HEAD
HEAD
AUDIO
CONTROL
CYL
CP4001
1
SP-CH2 (L)
2 3
SP_COM
SP-CH1 (R)
4
VD
CP4003
FE HEAD (HOT)
1 2
FE HEAD (GND)
CP4002
6
AUDIO PB
5
AUDIO REC
4
CTL+
CTL-
3
2
AE HEAD(-) AE HEAD(+)
1
P. CON+5V
Q4011
BUFFER
Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71201M-N-MPB
NC
67
NC
66 62
GND
65 72
73 74
9
7
8
6
COIL, BIAS OSC T4001
5
6
4
HA
P
R
P P
R
P
REC AMP
AUTO BIAS
2
3
1
L H
Q4005
BIAS CTL
Q4006
BIAS OSC
50 49
VX01
H
L
VREF
11
EQ
AMP
Q4012
BUFFER
PB.EE
3
41
PLL
TIMMING
C-LPF
4
43
DRIVER
3.58M BPF2
Main CONV
ACC DET
5
2
P. CON + 5V
OUT
LINE AMP
MUTE
10
B-UP AMP
3.58M BPF1
80
REC APC
R
LPF
76
39
P
REC APC
AGC
NYR/COMB
Q4010
BUFFER
37
CLAMP AUTO-BIAS
Y/C_CLK
Y/C_DATA
Y/C_CS
H. SW VCR_A_MUTE ENV. DET
V.REC_ST-H
DUMMY_V. SYNC SD_VIDEO
SD_SYNC
MICON/ OPERATION/ IN/OUT
MICON/ OPERATION/ IN/OUT
AUDIO
53 54
55
39 57 58 59
26 25
36
24
Q4009
BUFFER
Q4007
SYNC IN
CCD
VCA
VIDEO AGC
QV-QH
1
32
30
NC
2 3
12
3
28
ALC
R P
UOT
SERAIL DECODER
SYNC SEP
MUTE HA SW
60B
SYNC SEP
C-ROT
RF-SW IN
ENV DET
TU_VIDEO
TU_AUDIO
Y/C_AUDIO
TV
E-3
Q4001, Q4002
AUDIO PB SW
Q4003
SW
FRONT_AUDIO
FRONT_VIDEO CTL+
CTL-
MICON/ OPERATION/ IN/OUT
E-4
Page 95
MICON/OPERATION/IN/OUT BLOCK DIAGRAM
TV
VCR_POWER_H
CP1001
1
CAPSTAN DD UNIT
4
5 9
10 11
12
Y/C/AUDIO/CCD/
HEAD AMP
AT+5.6V
P. CON+5V
H_CONTROL
X-RAY_TEST
CAP_FG CAP/M F/R
I LIMIT
CAP_CTL LDM_CTL
CTL_FG/PG
CYL_CTL
DUMMY_V. SYNC
AT+5.6V
D1003
SW1001
14
2
3
4
1
32
3
1
4
2
Q1013
EOT SENSOR
Q1024
LED DRIVER
MS_SEN A
Q1009
MS_SEN B
Q1003
REEL SENS.
Q1005
TIMER SYSCON MICON IC IC1001 OEC7071A
TAB SW
50
1
MSSEN-A
MSSEN-B
2
REEL-T
80
24
H_CONTROL
41
X-RAY_TEST
27
VCR-POWER
12
I LIMIT
CAP-PWM
76
CAP-FG
87
11
CAP-FWD
20
LDM CTL
90
DRUM FG/PG DRUM-PWM
77
13
DUMMY-V.SYNC
3
EOT
61
CENTER LED
RESET-L
POWER_FAIL_L
X-OUT(12MHz)
X-IN(12MHz)
XC-OUT(32KHz)
XC-IN(32MHz)
CTL-
V-REC-ST-H
CVIN
VIDEO-H. SW
SDATA
SCLK
VIDEO ENV
VCR_A_MUTE
IIC-DATA1
IIC-CLK1
CTL AMP-OUT
FF/REW-L
AFT(MONI) OSD OUT1
V-SYNC
H/C-SYNC
KEY 1
TV-POWER
SYSTEM RESET IC IC1003 R3111N311A/C
EEP ROM IC
SDA
5 6
IC1099 S-24C04BDP-LA
SCL
POWER ON/OFF
Q1023
X_RAY_SW
REC/OTR STOP/EJECT PLAY
AUDIO L
VIDEO
J701
3
1
4
2
FF/CUE
POWER FAIL2
FRONT_VIDEO
FRONT_AUDIO
CTL+ CTL­V. REC_ST_H SD_VIDEO
SD_SYNC
H. SW
Y/C_DATA Y/C_CLK
Y/C_CS ENV_DET
VCR_A_MUTE
POWER OFF_H
X_RAY SDA
SCL
OSD_R OSD_G OSD_B AFT_M OSD_BLK
VD HD TV_A_MUTE
TV_POWER_H
REW/REV
Y/C/AUDIO/CCD/ HEAD AMP
TV
X1001 12MHz
X1002
32.768KHz
Q1004
1 OUT
34
85 39
38 36
35
95CTL+ 94 66 56
18 68 70
69 CS
6
81
72
71 97
FF/REW_SW
73
R
64
G
63
62
B
7 60 59 58 82TV_A_MUTE
9
28
Q1011
BOT SENSOR
KEY 2
4
BOT
REMOCON-IN
REC LED
T-REC LED
10
14
30
29
Q1007
REC LED SW
(AI)
Q1008
ON TIM/T-REC
LED SW(TO)
OS753
321
REC/OTR T-REC
D793
D791
CH DOWN
CH UP VOL. UP VOL. DOWN
AT+5V
E-5 E-6
Page 96
PRINTED CIRCUIT BOARDS
OPERATION
SOLDER SIDE
W812
W814
W815
J351
CD757
R351
W003
W805
W811
R350_1
W009
SW751
CD351_1
C382
SW797
R777_1
SW796
W006
W007
SW799
SW798
R776_1
R775_1
SW791
W008
SW794
W002
R772_1
W001
R773_1 R774_1
R771_1
R778_1
C755_1
SW795SW793SW792
OS753
W005
W004
R766
D793
R793_2
J701_1
R754_2
CD352
D791
F-1
F-2
Page 97
PRINTED CIRCUIT BOARDS
SYSCON/CRT (INSERTED PARTS)
SOLDER SIDE
CD852
R1051
C1003_1
SW1001
W259
C1021
Q602
D608
W238
W233
C643
D1001
W237
W236
W257
W262
C1058
W276
W255 W254
W272
Q804_1
Q805_1
CP851B
W234
W246
W296
R1066
X1001
W250
W249
W248
W267
W266
L801
W801
W245
W242
W253
W268
Q603
W243
X1002
Q1003
W240
TP803
S107Y
Q806_1
W247
W172W244
W166
W239
L1001
W270
R810
Q1005
W176
W269
Q1009
W163
W200
IC1099
W150
W134
W182
W273
R820
C801
W177
TP801
TP802
W836
W139
W128
W144
W125
W187
W203
W202
W232
W215
CP757_2
W805
R1010
W127
W185
W180
W287
W806
W174
W285
W188
W151
W173
W201
W912
W124
W170
W161
W199
R4016
W217
W148
W286
W164
W207
W193
W230
J801_1
W147
W131
W179
W159
W211
W198
R807 R808
W143
W850
W158
C1020
R1016
W825
W213
R802
R805
W146
W288
W157
C1015
W191
W130
W155
W228
W141
D609
W186
W154
C1016
W197
W227
CP1003
CP801
S818Y
W142
W178
W153
W209
C1018
W196
W229
W137
W145
R650
D1003
W156
R1028
W190
W220
W214
D620
W160
W231
W225
Q1011
W149
D611
D619
W162
L4009
R666
W165
W218
W126
W152
W212
W195
W194
R4048
W184
W181
W167
W208 W206
W205
W192
W189
W123
W135
W129
D621
W169
W210
R4029
W221
W222
Q1013
W138
W168
C4042
D605
W051
W077
W069
W090
W171
W100
W095
C4047
S825Y
W223
TP1001
C665
C1032
W874
W175
R4014
W078
W101
R4028
R4032
W098
W120
W116
R655_1
C1001
W074
W140
D610
W086
W888
C4045
W114
CP353_1
W060
L1003
R1008
W084
C4053
W117
W115
W110
W059
S107X
W055
CP1001
W066
L612
C655
W087
C4046
L4005
CP4003
W113
W057
D615
W072
W065
W081
D4003
W813
C1007
W056
B602
W064
W092
W080
C4010
C4049
X4001
W109
W054
C687
C659
C4035
W122
TP4001
W076
W085
W897
C4031
C4034
C4051
C4052
W280
R1064
W075
W827
C4027
TP1002
W863
R404
C664
W097
W862
X602
C4048
W119
W814
W279
W895
W082
C4030
C351
W071
C649
W088
Q4006
C4058
W118
IC351
W061
S818X
W848
W067
Q606
R668
L4003
Q4005 R4004
W104
C356
W828
W111
D409
D613
CF601
W068
B604
C648
C4012
C4023
C4065
W073
W093
R612
W108
T4001
W106
W096
D612
W070
CF603
C652
W105
W103
C4067
C4062
W112
D408
D614
L607
CF604
R654
W089
C4002
C4004
CP4001_1
C4063
W099
W121
C355
W808
W094
W091
Q4002
W915
CP851A
C641
C644
CP4002
C4009
L4006
W063
C627
W107
W020
R672
L601
Q605
W027
L4001
W834
C632
Q4001
R4007
R4006
W047
W847
R456
W018
W878
C624
W022
Q604
C4025_1
W046
W016
W829
W029
W048
W282
W030
W024
W044
S825X
D513
C433
D601
W021
D602
W032
W040
C354
W019
C417
R607
W031
W045
R522
D412
C431
T401
W917
W858
C534
C438
Q405
W035
D515
W042
S802X
W857
W872
W041
D508
W049
D413
R460
C418
IC501
HS402
W023
R640
R651
W028
W026
R508
R512
C511
W884
R422
R503
W274
S101A
R500
W816
R402
W037
D501
Q406
C521
C517
C519
W291
S102A
R440
W823
B402
CP401
R553
C432
B403
W824
R554
D405
W811
W817
C402
R453
C424
W890
W820
L401
FH504
W033
TP601
C523
W290
D510_1
B503
C524
D519
W043
D505
C516
F501 FH501FH502
5A125VOR250V
FH503
F502
D407
C541
C522_1
S802Y
D512
W832
C423
D507
W283
VR401
W034
C518
C506
R450
R447
C422
W036
VR502
W856
D517
D514
W001
R490
W840
C451
R449
R408
2.5A125VOR250V
W901
R529_1
Q507
R532
R533
D528
C505
T501
CP504
W014
D402
D404
R419
R505
W838
D403
W277
L502
D411
W871
C530
CP505
TH501_1
D401
W007
C515
R421
W003
IC401
L603
C406
D533
R511
W006
R517
B501
CP502
R501
FB401
W004
D536
D535
TU601
R528
D530
C405
HS401
C612
IC502
D537
C535
R514
W807
C610
D521
D534
C407
C537
W012
R415
W008
W005
R524
D520
R531
R502
W002
W013
C509
C507
C508
W009
W866
Q511
W011
W853
R423
D410
CP351_1
C539
HS501_1
Q510
D518
F-3 F-4
CD501
Page 98
PRINTED CIRCUIT BOARDS
SYSCON/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
C510
R527
C605C604
C536
C532
R525
C602
R504R506R510
C554
R516
R507
R530
Q505 R513
C631
W025
R4053
W880
R4052
C4020
R4001
C4069
C4015
C4021
R4051
C4019
C4016
R4003
R4002
Q4003
R4039
C4064
61
R4064
C4055
R4042
R4012
R4010
C4005
R4015
C4066
R4038
41
IC4001
R610
R352
C301
C4059
1
R4011
C4006
R357
W818
R353
R4041
C4061
W887
R4043
21
C4074
R4020
R669
Q4012
R4055
C4028
R359
R4017
R4018
C4060
R4035
R4060
C4032
C4029
R4034
C4037
R4021
R4019
C660
Q4010
R4033
R4062
R4068
C4036
R4024
C4033
R4037
C357
C4054
C4024_1
R4023
R4022
R4057
C4014_1
R676 C673
R4201
C4050
C4044
R4025
R4058
R4056
C4038
C4075
R638
C4057
R4054
W873
C4076
Q4007
Q4011
R4059
C1042_2
Q4009
C4041
R4061
R1025
R4045
R1011
R4044
Q1023
R1075
C1089
R4047
R1035
Q1024
C1028
R1017
R1029
R4026
R1021
R1012
Q1007
C4043
R1007
C1065
C1019
R1013
C1009
R1042
C1029
R1009
Q1004
Q1008
C1004
C1010
C1023
R1020
R1053
C656
R1078
C1062
C1037
C1022
R1033
R1036
R1044
C1084
R1048
C1060
R1034
C1034
R1045
R1038
C1013
C1027
C4206_1
W903
C1061
R1031
C1035
C1031
C1038 C1071
81
C1025
C1039_1
C1056
R1032
IC1001
1
R1001
R1030
51
C1082
R1070
C1046
R1040
C1047
C1026
31
R1005
C1040
C1083
R1047
C1048
C1049
R1046
R1018
C1043
C1050
C1068
R401
R411
R414
R416
R413
R441
C416
W907
R420
C623
R439
R444
Q404
R616
R609
Q601
C527
R618
R628
W284
R620
R601
W865
R442
C674
R608
C672
R625
R622
C640
R665
C618
R615
C650
C636
R633
C625
Q609
49
C622
C654
R644
C651
C634
33
IC601
R636
Q407
R614
C621
Q608
R1063
R1054
R1022
R1087
R1055
R1052
R1050
R1019
R1083
C805
C811
R813
R816
R663
C667
R815
C810 R812
R814
W810
R811 C809
R1049
IC1003
C1017
Q403
R627
R646
C688
R647
17
1
Q611
Q612
R626
C675
C629
R656
C647
C639
R658
R624
R648
R603
R657
R639 R643
C653
W846
R649 R660
R631
R635
R641
R613
C645
C630
R652
C658
R1073
R642
R659
W894
R602
F-5
F-6
Page 99
ABC D E F GH
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
8
H.SW
R4047
Y/C_CS
12K
ENV_DET
H.AMP_SW1
VCR_A_MUTE
100K
R4044
12K
R4054
C4069
R4045
18K
0.1 F
7
FROM TV POWER
P.CON+5V
GND
W858
NC
2.7K
R4051
6
0.5
2.2
OUT
C4016
0.068 B
C4019
C4015
0.047 F
0.047 F
5
P.CON+5V
FROM/TO MICRO MOTOR
4
CP4001_1 TOC-C04X-B1
4
SP-CH1 (R)
3
2
SP-CH2 (L)
1
SP COM
NC
TU_AUDIO
P.CON+5V DUMMY_V.SYNC
FRONT_AUDIO P.CON+5V
3
FROM/TO HEAD AUDIO CONTROL
CP4002 IMSA-9604S-06Z14
6
AUDIO_PB
5
AUDIO_REC
4
CTL+
3
CTL-
2
AE HEAD(-)
1
2
AE HEAD(+)
TO FULL ERASE HEAD
CP4003 TMC-T02X-E1
2
FE HEAD(GND)
1
FE HEAD(HOT)
GND
HOT
P.CON+5V SD_SYNC
V.REC_ST_H
CTL+
CTL-
AUDIO PB SW Q4001
KTC3198
W880
AUDIO PB SW Q4002
KTC3198
L4001
22uH
0305
C4055
1F
C4009
4716V KA
R4007
C4012
39K 1/4W
R4006
47K 1/4W
R4053
6.8K
R4004
15 1/4W
226.3V KA
5.2 SW
0
Q4003
KRA103SRTK
5.3
R4001
560
0
R4002
0.7
0
0
0.7
0
10K
R4003
10K
5
0.022100V MKT
C4002
6
5
COIL,BIAS OSC
T4001
1626009
1
2
34
2206.3V KA
C4004
C4005
C4006
3.3K
0.01 F
R4010
0
0.015 B
C4023
R4015
R4052
8.2K
226.3V KA
L4003
100uH
0305
0
BIAS OSC
Q4006
KTC3203_Y
0
2.2
R4064
6.8K
C4020
0.1 F
C4021
0.1 F
Y/C/A/CCD/H.AMP IC
IC4001
LA71201M-N-MPB
BIAS CTL
Q4005
KTA1266
5.20
5.2 R4011
22K
C4010
476.3V KA
R4012
COMP
AUDIO
ENV
C-ROT
C-GND
MUTE
DET
KILL
616263646566676869
DET
0
HA GND
4.0
CHROMA
DET
1.8
ACC DET
0.7
NC
0.7
NC
0.7
NC
5.0
HA VCC
RF-SW
IN
HA SW
P
R
H
P
L
1.7
ALC
ALC DET
SP,LP
6.8K
8.2K
AMP
4
R4019
330K
+
R
P
PB,EE
EQ
REC:LP<EP PB:EP
C4031
1.8
820
70717273747576777879
0
HA
PRE GND
2.0
2.0
2.0
0
A-GND
2.2
4.9
A-VCC
2.3 NC
0
2.0
2.2 2.2 2.3 2.2 2.2 2.5 2.3 2.2 2.3 2.4 5.0 1.0 1.0 1.7 1.4 0
C4074
0.01 F
W887
C4025_1
2206.3V KA
H
P
L
R
P
1 2 3
Vref
2.3V
3
1 10111213141516
0.1 F
C4028
1K
R4055
336.3V KA
C4027
R4017
R4018
C4029
0.01 F
1016V KA
C4030
R4056
4.7M
150
R4020
W897
1
THE DC VOLTAGE AT EACH PART WAS
NOTE:
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
ABC D E F GH
(SYSCON PCB)
Y/C_CLK
Y/C_DATA
P.CON+5V
L4006
C-VCC
SERAIL
DECODER
RP
Main
C-LPF
CONV
4.21M BPF
Sub
CONV
LPF
VREF
REC AMP
PB,EE
7
8809
C4032
R4022
0.0033 B R4021
22K
C4033
820PB
6.8K
R4058
BUFFER
Q4011
2SC2412K
0.6
0
2.7K
4
R4059
C4075
3.350V KA
R4057
4.9
BUFFER
Q4012
2SC2412K
47uH
0305
R4041
1.8K
2
5.0
4.0
3.4
476.3V KA
C4063
C4062
R4039
150V KA
8.2K
C4064
C4065
0.022 B
R4042
150V KA
C4066
820
R4043
0.022 B
3.3K
C4067
C4058
476.3V KA C4059
R4038
0.1 F
150V KA
680K
X4001
100CT3R502
VX01
PB
REC
APC
APC
BEFORE
P
R
BGA
R
P
3.58M BPF2
B-UP
AMP
ACC AMP
R
PP
ACC
DET
P
R
DETAIL
CLAMP
ENH
NL
NL
EMPHA
EMPHA
FM
MOD
R-EQ
NORMAL
TEST
LINE
REC
AMP
FM-EQ
FM
R
P
AGC
MUTE
PHASE
AUTO
EQ
BIAS
fo-ADJ
470
R4023
4.725V KA
C4034
10M
150P CH
10M
R4061
P.CON+5V
VD
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
NC
VDD 4Fsc
ALWAYS
LIM
V.ENV
5.6K
R4037
SLD
PB-C
S-EQ
YNR/COMB
P
R
SOPB
3
390
B
3.58M
FM
DEM
P
FM
AGC
FIL
C4035
BPF1
AMP
CNC
PB
B.D
P
N.L.
DEEM
NC1
5V
R
PB-C
Y/C
MIX
SUB LPF
MAIN
DE-EM
R
P
Y-GND
0 1.5
150V KA
TIMMING OUT
DRIVER
CCD
VIDEO
AGC
1/2
FBC
R
P
R
P
QV/QH
SYNC
SEP
V.SYNC
SEP
R
4.7K
MAIN
EMPHA
FIL
17 18 192 20
0.1 2.2
NC
C4036
390PB
0.047 B
C4014_1
320FH
VCO
P
AFTER
P
PHASE
EQ
Q-ADJ
33K
R4024
C4076
R
REC AFC
R
DOUBBLE
PB
FM EQ
BGA BGA
Y-LPF
VHS
NC
TP4001
0.1 F
Y/C_AUDIO
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
P.CON+5V
L4005
2.203.33.34.02.61.92.8
PLL
AUTO-BIAS
CLAMP
VCA
CLAMP
1 2 3
6DB
S
DET
0.1 F
C4037
0305
47uH
0.01 F
C4060
C4061
0.01 F
0.85.05.02.35.04.84.84.8000
414243444546474849550515253545556575859660
CLOCK
VSS
OUT
VSS
IN
VCA
VCP
REG
4V
BAL
TC1
AGC
TC2
Y-VCC
B
1.5K
R4025
C4038
180P CH
D4003
R4014
VCR_A_MUTE
40
1.7
3.0
2.8
3.1
3.1
2.6
2.0
4.0
30 31 32 33 34 35 36 37 38 39
2.0
2.3
2.3
1.6
2.9
3.6
4.9
2.8
1.8
21 22 23 24 25 26 27 28 29
1SS133
470K 1/4W
0
0
NC
0
W818
C4048
1016V KA
C4049
1016V KA
C4050
0.22 B
R4060 1.5M
C4051
336.3V KA
0.1 F
C4045
C4044
C4024_1
R4016
2.2M 1/4W
PLAY_LED
BUFFER
Q4010
2SA1037AK
1.7
0 2.3
R4032
100 1/4W
2.2M
R4068
2206.3V KA
18P CH
W873
C4052
C4053
C4054
0.1 F
C4046
3.350V KA
4.750V KA
4.750V KA
2.2K
R4033
0
5.0
R4029
47K 1/4W
R4034
82K
R4062
3.3M
C4057
1F
C4047
1016V KA
5.0
2SA1037AK
R4048
68 1/4W
R1025
100
BUFFER
Q4009
0.7
SYNC IN
Q4007
2SC2412K
R4028
8
7
FROM/TO IN/OUT
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
FROM/TO MICON
6
5
R4035
100K
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
ENV_DET
H.SW
SD_VIDEO
SD_SYNC
PLAY_LED
TU_VIDEO
FRONT_VIDEO
L4009
C4041
KA
6.3V
0.1 F
C4042
100
100uH
0305
1
P.CON+5V
4
Y/C_VIDEO
SD_VIDEO
W888
47K 1/4W
R4026
2.8
C4043
0.1 F
39K
0
FROM/TO CHROMA/IF
TU_VIDEO
TU_AUDIO
SD_VIDEO
Y/C_AUDIO
VD
RECORD COLOR SIGNAL
3
PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB)
2
TUNER VIDEO SIGNAL
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PCB010 VMA227
CAUTION: DIGITAL TRANSISTOR
1
G-2G-1
Page 100
8
7
CP1001
TMC-J12P-B2
6
10
11
12
5
4
3
2
1
FROM/TO DECK
(CP101)
CAP_FG
1
CAP_VCO
2
3
CAP_M/F/R
4
I_LIMIT
5
6
7
LD/CY_VCO
8
CAP_CTL
9
LDM_CTL
CYL_FG/PG
CYL_CTL
FROM/TO DECK
CH01408A
VCC
GND[M]
GND
CD852
BOT SENSOR
Q1011
ST-304L
ABC DEF GH
FROMTV POWER
POWER_FAIL2
P.CON+5V
GND
MOTOR+12V
GND
22016V YK
C1032
L1003
22uHELC0607
W805
3.9
0
SW1001
MXS01380MPP0
EOT SENSOR
ST-304L
LED DRIVER
Q1024
KRC103SRTK
C1001
4716V YK
C1007
4725V YK
R1010
3.3K 1/4W
Q1013
R1016
5.1
0.1
5.0
D1003 LNA2702L010R
270 1/4W
0
X_RAY
CAP_FG
CAP_M/F/R
CAP_CTL
LDM_CTL
CYL_DRIVE
EOT
BOT
CENTLED
S825Y
C1042_2
47K
R1018
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1F
TAB_SW VCR_POWER_H
C1043
0.01B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
R1011
330K
R1073
330K
VCR_A_MUTE TAB_SW
TV_A_MUTE
IIC_OFF
CAP_FG
CTL-
CTL+
FF/REW_SW
Q1004
KRC103SRTK
0.0022 B
H.SW
H.AMP_SW1
CAP_M/F/R
C1089
5.1
C1025
0.1 F
R1001
3.3K
R1008
1K1/4W
R1064
1K1/4W
0
0
R1012
10K
R1075
C1022
0.1F
0.2
4.7K
0.0039 B
13
C1084
W894
5.9 X_RAY_SW
Q1023
2SC2412K
0
C1013
C1015 4710V KA
C1016 2216V KA
0.0047 B C1018 4.750V KA
C1019
0.001CH
C1027
0.0039B
TIMER SYSCON MICON IC
R1070
100
MS_SEN B
Q1003
RPI-352Q01R
11
R1048
4.7K
R1009 560
R1013 560
C1020
10
OEC7071A
23
1
0.8
CAP_CTL
R1028
1016V KA
IC1001
4
R1083
CYL_DRIVE
22K 1/4W
5.25.2
1.4
33K
MICON SCHEMATIC DIAGRAM
SDA
REEL_T
REEL_S
0.1 F
C1065
R1029
4.7K
W810
818283848586878889
0
REEL-T
5.1
NC
NC
NC
POWER_FAIL_L
5.9 IIC OFF
5.2 CAP-FG
2.5 AMP-VSS
0
NC
2.0 DRUM FG/PG
90919293949596979899
0.6 AMP-VREFOUT
2.5 AMP-VREFIN
2.5 C
0.2 CTL-
0
CTL+
2.5 AMP C
2.6 CTL AMP-OUT
2.5
5.1
5.2
100
MSSEN-A
0
110
MS_SEN-A
MS_SEN-B
MS_SEN A
Q1009
RPI-352Q01R
5.20.8
23
1
4
1.4
0.5
100
R1087
R1050
NOTE:
0.1 F
C1028
C1029
0.0068 B
C1061 100P CH
R1045
R1020 22K
R1017 39K
R1053 220
0.90.9
REEL-S
CAP FULL
EOT
MSSEN-B
00 0 00
MS_SEN-B
EOT
33K
THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
DRUM-PWM
BOT
4
BOT
MS_SEN-A
S818Y
CAP-PWM
5 HI-FI-ENV
5
ENV_DET
NC
75 VOLUME
81 VCR_A_MUTE
82 TV_A_MUTE
83 (EXT MUTE)
98 AMP-VCC
99 ANALOG VCC
100 DEW
6 VIDEO-ENV
AFT_M
R1030
SCL
Y/C_CS
Y/C_CLK
Y/C_DATA
220
R1042
R1044
5.6K
220
R1038
5.6K
00
4.9 0 0 0
73 FF/REW-L
72 IIC-DATA1
74 JUST CLOCK
7 AFT(MONI)
8 AFT(REC)
9 KEY 1
9
5.25.2 2.22.22.41.41.4 5.22.32.62.6 5.25.2
KEY_A
REEL_S
REEL_T
4.7K
R1046
R1019
REEL SENS
Q1005
RPI-303
0
69 CS
70 SCLK
71 IIC-CLK1
12 CAP-LIMIT
11 CAP-FWD
10 KEY 2
11 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28 293 30
C1039_1
0.1 F
KEY_B
4.7K
47K
R1052
0
0
1
R1047
390
1.2
2
34
0.9
DUMMY_V.SYNC
4.7K
OSD_R
OSD_G
V.REC_ST_H
22
R1007
R1035
C1060 100P CH
R1063
4.7 5.24.24.9
0
67 NC
68 SDATA
66 V REC START H
15 COLOR ROTARY
13 DUMMY-V.SYNC
14 REMOCON-IN
000
NC NC
C1082
REMOCON_IN
1006.3V YK
C1058
R1021
4.7K
C1009 220P CH
NC
00
64 R
63 G
65 NC
17 ENV-CMP-IN
16 HEAD.AMP.SW
18 VIDEO-H.SW
H.SW
TP1002
W825
0.01 F
IC1003
SYSTEM RESET IC
0.1 F
C1017
10
NC
9
CAUTION: DIGITAL TRANSISTOR
(SYSCON PCB)
SERVICE
0.1F
55 VHOLD
EXT-MUTE
NC
1K
R1031
54 HLF
XC_OUT(32KHz)
XC_IN(32KHz)
VCR-POWER
4.7K
C1083
0.0022 B
R1051
18K 1/4W
3325V YK
C1021
TP1001
NC
5.22.11.62.300002.62.52.51.8
53 OSD-VCC
OSC-OUT2
OSC-IN2
X-RAY_TEST
X-OUT(12MHz)
X-IN(12MHz)
RESET-L
TV-POWER
C1003_1
C1056
OSD_B
C1071
100P CH
CENTLED
OSD_BLK
10
R1036 4.7K
C1037 390P CH
C1023 220P CH
C1010 220P CH
4.8
62 B
60 OSD OUT1
61 CENTER LED
50 TAB SW
49 OSD-VSS
48 (AV2)
33 PLAY LED
32 RENT_H
31 ON-TIMER LED
21 NC
20 LDM CTL
19 HI-FI-H.SW
00 00
4.7K
R1055
NC0
LDM_CTL
NC NC
0
NC NC
OUT
R3111N311A/C
123
5.2 5.1
C1004
100P CH
C1031
0.001B
57 NUA
59 V-SYNC
58 H/C-SYNC
22 DEGAUSS_H
23 NC
24 H_CONTROL
5.0
R1066
4.7K 1/4W
R1022 4.7K
H_CTL
0
45
GNDIN
0
C1034
0.1F
C1035
220PCH
56 CVIN
25 PROTECT
5.2
R1054
PROTECT
RESET
R1049
4.7K
D1001
1SS133
R1032 10K
515253545556575859660616263646566676869770717273747576777879880
SERVICE
52 SD-IN(MONI)
NUB
CLKSEL
NC
VSS
VCC
REC LED
T-REC LED
REC_LED
T-REC_LED
2206.3V YK
SD_SYNC
7
C1038
50
5.2
0
NC
NC(AV1)
0
L1001
2.6
2.2uH
2.5
R1040
5.2
33K
NC
0
40 41 42 43 44 45 46 47 48 49
0
8
2.6 100CT01207
2.1
5.2
X1002
1.3
100DA32R01
1.5
5.2
4.8
NC
0
NC
31 32 33 34 35 36 37 38 39
0
C1068
0.0022B
5678
SDA
VSS
TUNER VIDEO SIGNAL DEFLECTION SIGNAL CAPSTAN AFC SIGNAL CYLINDER AFC SIGNAL CYLINDER APC SIGNAL
6
R1033
1K
680P CH
C1046 20PCH
R1005
2.7K
C1047 18PCH
C1040 18PCH
X1001
C1048 18PCH
C104922PCH
C105020PCH
5.202.62.5
SCL
A2
VCC
TEST
A1
A0
1234
0000
X-RAY_TEST
RESET
PLAY_LED
IC1099
EEP ROM IC
S-24C04BDP-LA
R1034
1M
C1026
0.01F
C1062
1B
R1078
390K
TV_POWER_H
FROM/TO Y/C/AUDIO/HEAD AMP
Y/C_CLK
Y/C_DATA
Y/C_CS H.SW
SD_VIDEO
ENV_DET
VCR_A_MUTE
CTL+
CTL-
DUMMY_V.SYNC
V.REC_ST_H
H.AMP_SW1
SD_SYNC
PLAY_LED
FROM/TO CHROMA/IF
POWER_OFF_H
HD
VD
AFT_M
SCL
SDA
OSD_R
OSD_G
OSD_B
OSD_BLK
AT+5V_BACKUP
AT+5V
VCR_POWER_H
TV_POWER_H
PROTECT
FROM/TO IN/OUT
IIC_OFF REC_LED T-REC_LED KEY_A KEY_B REMOCON_IN SCL SDA
TO SOUND AMP
TV_POWER_H TV_A_MUTE
FROM/TO DEFLECTION
X_RAY X-RAY_TEST H_CTL AT+5V
PCB010 VMA227
8
7
6
5
4
3
2
1
ABC DEF GH
G-4G-3
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