Toshiba VTW2186 Service Manual

SERVICE MANUAL
COLOR TELEVISION/ VIDEO CASSETTE RECORDER/ DVD VIDEO PLAYER
VTW2186
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
WHEN REPLACING DVD DECK
[ When the removal of the DVD Deck ]
Before removing Pick Up PCB and DVD PCB connector, make the short circuit on the position as shown Fig. 1 using a soldering. If you remove the DVD Deck with no soldering, the Laser may be damaged.
[ When the installation of the DVD Deck ]
Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.
Pick Up PCB
Make the sort circuit using a soldering.
Fig. 1
A1-2
TAPE REMOVAL METHOD AT NO POWER SUPPLY
1.
Remove the TV/DVD/VCR block from the main unit and the Fig. 1 below can be seen.
(Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.)
2.
Remove the screw 1 of the Deck Chassis and remove the Loading Motor.
3.
Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape.
(Refer to Fig. 2)
4.
Rotate the Clutch Ass'y either of the directions to wind the Video Tape in the Cassette Case.
5.
Repeat the above step 3~4. Then take out the Video Cassette from the Deck Chassis. Be careful not to scratch on the tape.
Loading Motor
Screw 1
Capstan DD Unit
Pinch Roller Cam
Insert hole for screw driver
Fig. 1
Main Cam
Main Chassis (Front Side)
Fig. 2
DISC REMOVAL METHOD AT NO POWER SUPPLY
1.
Remove the Back Cabinet and TV//DVD/VCR Block. (Refer to item 1 of the DISASSEMBLY
INSTRUCTIONS.)
2.
Rotate the Main Gear in the direction of the arrow by hand.
(Refer to Fig. 1)
3.
Draw the Tray.
DVD DeckMain Gear
Clutch Ass'y
Fig. 1
A1-3
PARENTAL CONTROL - RATING LEVEL
4 DIGIT PASSWORD CANCELLATION
If the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below.
Turn Unit ON.
1. Press and hold the '7' key on the remote control unit.
2. Simultaneously press and hold the 'STOP' key on the front panel.
3. Hold both keys for more than 3 seconds.
4. The On Screen Display message 'PASSWORD CLEAR' will appear.
5. The 4 digit password has now been cleared
6.
TRAY LOCK
Tray cannot be opened by setting the Tray Lock, please follow the steps below.
Turn Unit ON.
1. Set the DVD to the Stop Mode.
2. Press and hold the '9' key on the remote control unit.
3. Simultaneously press and hold the 'STOP' key on the front panel.
4. Hold both keys for more than 3 seconds.
5. Press the OPEN/CLOSE key on the front panel to check the Tray Lock setting.
6.
NB: No indications on the screen when the Tray Lock is setting. To unlock the Tray Lock, please follow the steps below.
Turn Unit ON.
1. Set the DVD to the Stop Mode.
2. Set the VOLUME to minimum.
3. Press and hold the 'REC/OTR' button on the front panel.
4. Simultaneously press and hold the '4' key on the remote control unit.
5. Hold both keys for more than 2 second.
6. The On Screen Display message 'INITIALIZE7 COMPLETE' will appear.
7. The Tray Lock has now been cleared.
8.
NB: The above procedure will reset ALL of the player's settings to the default factory state.
PREPARATION OF SERVICING
The laser diode used for a pickup head may be destroyed with external static electricity. Moreover, even if it is operating normally after repair, when static electricity discharge is received at the time of repair, a life of product may become short. Please perform the following measure against static electricity, be careful of destruction of a laser diode enough at the time of repair, and work.
It works on the desk which performed measures against static electricity, such as conductive mat.
Soldering iron with ground wire or ceramic type is used.
A worker needs to use a ground conductive wrist strap for body.
A1-4
CONTENTS
SERVICING NOTICES ON CHECKING......................................................................
HOW TO ORDER PARTS ...........................................................................................
WHEN REPLACING DVD DECK ................................................................................
TAPE REMOVAL METHOD AT NO POWER SUPPLY..............................................
DISC REMOVAL METHOD AT NO POWER SUPPLY...............................................
PARENTAL CONTROL - RATING LEVEL .................................................................
TRAY LOCK ................................................................................................................
PREPARATION OF SERVICING ................................................................................
CONTENTS .................................................................................................................
GENERAL SPECIFICATIONS ....................................................................................
DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS ................................
2.REMOVAL OF VCR DECK PARTS ......................................................................
3.REMOVAL OF DVD DECK PARTS ......................................................................
4.REMOVAL OF ANODE CAP ................................................................................
5.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
DVD..........................................................................................................................
TV.............................................................................................................................
Y/C/AUDIO/HEAD AMP ...........................................................................................
MICON .....................................................................................................................
DEMODULATOR/21PIN/STEREO ..........................................................................
T'TEXT/Hi-Fi/SOUND AMP......................................................................................
PRINTED CIRCUIT BOARDS
DVD..........................................................................................................................
VCR..........................................................................................................................
MAIN/CRT/OPERATION/POWER ...........................................................................
STEREO/IF/RELAY/FILTER/LOADING MOTOR/SW..............................................
SCHEMATIC DIAGRAMS
MPEG/MICON/DSP .................................................................................................
MEMORY .................................................................................................................
FR AMP/DSP ...........................................................................................................
AUDIO/VIDEO..........................................................................................................
Y/C/AUDIO/HEAD AMP ...........................................................................................
MICON .....................................................................................................................
DVD IN/OUT ............................................................................................................
CHROMA/IF .............................................................................................................
DEMODULATOT/21PIN...........................................................................................
T'TEXT/RGB SW......................................................................................................
SOUND AMP ...........................................................................................................
SECAM CHROMA/Hi-Fi...........................................................................................
REGULATOR1.........................................................................................................
DEFLECTION ..........................................................................................................
CRT/POWER SW/OPERATION ..............................................................................
TV POWER ..............................................................................................................
POWER2..................................................................................................................
NICAM......................................................................................................................
IF ..............................................................................................................................
CHOKE COIL ...........................................................................................................
LOADING MOTOR/SW ............................................................................................
INTERCONNECTION DIAGRAM ................................................................................
WAVEFORMS .............................................................................................................
MECHANICAL EXPLODED VIEWS ...........................................................................
CHASSIS EXPLODED VIEWS....................................................................................
DVD DECK EXPLODED VIEWS .................................................................................
MECHANICAL REPLACEMENT PARTS LIST ..........................................................
CHASSIS REPLACEMENT PARTS LIST...................................................................
DVD DECK REPLACEMENT PARTS LIST ................................................................
ELECTRICAL REPLACEMENT PARTS LIST ............................................................
A1-1 A1-1 A1-2 A1-3 A1-3 A1-4 A1-4 A1-4 A2-1 A3-1~A3-7
B1-1~B1-3 B2-1~B2-6 B3-1~B3-3 B4-1 B5-1, B5-2 C1-1, C1-2 C2-1 C3-1, C3-2 C4-1 D1-1 D1-1 D2-1~D2-4 D3-1~D3-6
E-1, E-2 E-3, E-4 E-5, E-6 E-7, E-8 E-9, E-10 E-11, E-12
F-1, F-2 F-3~F-6 F-7, F-8 F-9, F-10
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 G-21, G-22 G-23, G-24 G-25, G-26 G-27, G-28 G-29, G-30 G-31, G-32 G-33, G-34 G-35, G-36 G-37, G-38 G-39, G-40 G-41, G-42 G-43, G-44 H-1~H-3 I1-1~I1-3 I2-1, I2-2 I3-1 J1-1, J1-2 J2-1 J3-1 J4-1~J4-7
A2-1
GENERAL SPECIFICATIONS
G-1 TV CRT CRT Size / Visual Size 21 inch / 508.0mmV
G-2 VCR System VHS Player / Recorder
G-3 DVD System Color System PAL
G-4 Tuning Broadcasting System U.K. System I
System CRT Type Flat
Color System PAL Speaker 2 Speaker
Sound Output MAX 1.5W + 1.5W
System Video System PAL
Hi-Fi STEREO Yes NTSC PB(PAL 60Hz) Yes Deck DECK OVD-7
Heads Video Head 4 Head
FM Audio Head 2 Head
Audio /Control Mono /Yes
Erase(Full Track Erase) Yes Tape Rec PAL SP/LP Speed NTSC -
Play PAL SP/LP
Fast Forward / Rewind Time (Approx.) at 25oC FF:1'48"/REW:1'48"
Forward/Reverse NTSC or PAL-M SP=3x,5x Picture Search PAL or SECAM SP/LP=5x,7x/7x,13x Frame Advance Yes Slow Speed 1/5, 1/10,1/30
Disc DVD, CD-DA, CD-R/RW, Video CD, SVCD
Disc Diameter 120 mm , 80 mm Deck Disc Loading System Front Loading
Pick up 1-Lens 2-Beams System Playback time(Max) DVD 1-Layer 135min (4.7GB)
Search speed Fwd 4 step
Slow speed Fwd 1/7 -1/2 times
System Tuner and System 2 Tuner
Receive CH Destination U.K.
Intermediate Picture(FP) 39.5MHz Frequency Sound(FS) 33.5MHz
Auto Tuning Method ­Preset CH 80CH Stereo/Dual TV Sound Yes (NICAM) Tuner Sound Muting Yes
Deflection 90 degree Magnetic Field BV/BH +0.45G / +0.18G
Position Front Size 1.8 x 3.9 Inch Impedance 8 ohm
10%(Typical) 1.5W + 1.5W
Loading System Front Motor 3
NTSC SP
Cassette at E-180
DVD-R/RW (Video Format Only)
Motor 3 Motors
DVD 2-Layer 245min (8.5GB) CD 74min Video CD 74min
Actual 2-45 times (DVD, Video CD)
Rev 4 step
Actual 2-45 times (DVD, Video CD)
Actual --
Rev --
Actual --
Tuning System F-Synth Input Impedance UHF 75 ohm CH Coverage
FP-FS 6.0MHZ
4-40 times (CD)
4-40 times (CD)
21~69
A3-1
GENERAL SPECIFICATIONS
G-5 Signal Video Signal Input Level 1 V p-p/75 ohm
RGB Signal Output Level ­Audio Signal Input Level -3.8dBm/50k ohm
VCR
DVD
Hi-Fi Audio Signal Dynamic Range : More than 75 dB
G-6 Power Power Source AC 230~240V 50Hz
Power Consumption at AC 80 W at 230 V 50 Hz
Protector Power Fuse Yes
G-7 Regulation Safety CE , BEAB
G-8 Temperature Operation +5oC ~ +40oC
G-9 Operating Humidity Less than 80% RH
Output Level 1 V p-p/75 ohm
S/N Ratio (Weighted) at DVD Mode S/N Ratio (Weighted) at VCR Mode Horizontal Resolution at DVD Mode Horizontal Resolution at VCR(SP)Mode
Output Level (0dB=0.775Vrms) -3.8dBm/1k ohm
Output Level (-20dBFs 0dBFs=2.0Vrms)
Digital Output Level 0.5 V p-p/75 ohm(DVD) S/N Ratio at DVD (Weighted) 90 dB S/N Ratio at VCR(SP) (Weighted) 42 dB
Harmonic Distortion at DVD Mode 0.06% (1kHz) Harmonic Distortion at VCR(SP) Mode 1.5% (1kHz) Typical
Frequency Response :
DVD Mode at DVD 4Hz - 22kHz
at Video CD 4Hz - 20kHz
at SVCD 4Hz - 20kHz
at CD 4Hz - 20kHz
VCR Mode at SP 100Hz - 10kHz
at LP 100Hz - 5kHz
at SLP(EP) -
Frequency Response : 20Hz - 20kHz Wow And Flutter : Less than 0.01 %Wrms Channel Separation : More than 60 dB Harmonic Distortion : Less than 1.0 %
DC -
at DC ­Stand by (at AC) 6 W at 230 V 50 Hz Per Year -
Safety Circuit Yes IC Protector(Micro Fuse) No Dew Sensor
Radiation CE X-Radiation NONE
Storage -20oC ~ +60oC
65dB 53dB 400 Lines 240 Lines
-12.0dBm/1k ohm
No
A3-2
GENERAL SPECIFICATIONS
G-10 On Screen Menu Yes
Display Menu Type Character (TV/VCR) Timer Rec Set Yes
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry Yes Stereo/Audio Output Yes
Control Volume Yes Level Brightness / Contrast / Sharpness / Color Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol
TV/VCR Yes DVD Yes Clock / Date Yes CH/AV Yes Tape Counter(Linear Counter) Yes Tape Speed Yes Sleep Time Yes Auto Tracking/Manual Tracking Yes Index Yes Mute Yes Hi-Fi Yes PDC Yes Repeat Yes Zero Return Yes DEW
Channel Setup Yes
TV Setup Yes
VCR Setup
System Setup
Tint Bass/Treble/Balance Manual Tracking Yes
Auto Tuning Ch Mapping Ch Tuning Yes Ch Allocation Guide Ch Set Yes
On/Off Timer Set Yes Picture Yes Audio NICAM Auto On/Off Yes
Auto Repeat On/Off Yes System Select Scene Repeat
Clock Set Yes (Calendar 24h) Language System Select
Bilingual NICAM Yes
Mark)
Yes
No No
No
No
No
No No No
No No
No
No No
No
A3-3
GENERAL SPECIFICATIONS
G-11 On Screen Menu (DVD) Yes
G-12 OSD Language TV/VCR English
G-13 Clock,Timer Calendar 1990/1/1 ~ 2081/12/31
Display Menu Type Character
and Timer Timer Events 8 Program/ 1 Month Back-up One Touch Recording Max Time SP 5 Hours LP 10 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) 30
Language Yes
Picture Yes
Sound Yes
Parental Yes
Other No
Open Yes Close Yes No disc Yes Reading Yes Play Yes Still/Pause Yes Stop Yes Prohibit Mark Yes Step Yes Skip(>>|) Yes Skip(|<<) Yes Random Yes (CD, VIDEO CD, MP3, WMA, JPEG ) Repeat Yes Slow+ ## Yes Slow- ## No Search+ ## Yes Search- ## Yes Jump Yes Resume Yes Title No. Yes Chapter No. Yes Track No. Yes Time Yes Sub Title No. Yes Angle No. Yes Vocal On/Off Yes Audio No. Yes Audio Stereo L/R Yes (Video CD,SVCD) Zoom Yes Marker No. No Program Play Back Yes (CD, VIDEO CD, MP3, WMA, JPEG ) Surround On/Off No Screen Saver No MP3, WMA, JPEG Folder Name Yes
DVD English
Menu Yes Subtitle Yes Audio Yes
TV Screen Size(4:3, 16:9) Yes OSD Display On/Off Yes JPEG Interval Yes Select Files Yes
DRC (Dynamic Range Control) Yes dts Decode No Output(5.1ch/ 2ch) No Surround On/Off No Center On/Off No Sub Woofer On/Off No
Password Lock/ Un Lock Yes Rating Level Yes
OSD Language(Set up Language) No Output(RGB/Composite) No
File Name Yes
File No Yes
Time Yes (MP3, WMA Only)
Track No Yes
Step 10
No Operation -
Min Min Program Min Min min.
A3-4
GENERAL SPECIFICATIONS
G-14 Remote Unit(for TOSHIBA) RC-GN
Control Glow in Dark Remocon Yes Unit Format NEC
Custom Code 71-8E Power Source Voltage(D.C) 3V
Total Keys 49 Keys
UM size x pcs UM-4 x 2 pcs
TV/VCR DVD Power 1 2 3 4 5 6 7 8 9 0/AV
CH / Page Up Yes CH / Page Down Yes
Volume Up Volume Down Display Sleep Audio Select Mute Skip- / Channel Return Skip+ / TEXT/MIX/TV T-REC REC(T-REC/OTR) Rec/OTR Slow Play Stop Rev Fwd Pause / Still CM Skip / Jump SP/LP / Return Counter Reset / Angle Zero Return / Subtitle Zoom / Reveal Menu /Setup Video+/ Program/ Repeat A-B D.Tracking / Top Menu Tracking+ / DVD Menu Tracking- / Play Mode Cancel / F/T/B Enter / Hold
Index / Sub Page Yes Cursor Up / Green Yes Cursor Down / Yellow Yes Cursor Left / Red Yes Cursor Right / Blue Yes
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
A3-5
GENERAL SPECIFICATIONS
G-15 Features Auto Head Cleaning Yes
G-16 Accessories Owner's Manual Language English
Auto Tracking Yes HQ (VHS Standard High Quality) Yes Auto Power On, Auto Play, Auto Rewind, Auto Eject Yes VIDEO PLUS+(SHOWVIEW,G-CODE) Yes CH Auto Setup/Auto Clock Yes PDC Yes Forward / Reverse Picture Search Yes TV Auto Shut off Function Yes Index Search Yes SQPB CM Skip(30sec x 6 Times) Yes VM Circuit TV/REC Monitor Choke Coil Yes Energy Star Protect of FBT Leak Circuit Yes Zero Return Yes Power On Memory T'Text Yes
Parental Lock (DVD Only) Yes Tray Lock Yes Auto Stop (Pause, and Resume Stop after 5min.) Yes VIDEO CD Playback Yes SVCD Playback Yes
MP3 Playback Yes WMA Playback Yes JPEG Playback Yes Digital Out (Dolby Digital) Yes
Down Mix Out (Dolby Digital) Yes
TruSurround Screen Saver
Copy (Disc to Tape) Yes (by Conditioning) Audio DAC 192kHz / 24bit
Remote Control Unit Yes Rod Antenna
Loop Antenna
U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Dew/AHC Caution Sheet AC Plug Adapter Quick Set-up Sheet Yes Battery Yes
AC Cord AV Cord (2Pin-1Pin) 21pin-RCA Cable RF Cable Yes (0.9m) Registration Card Yes PTB Sheet Anti-Theft Sheet Euro Warranty Information Sheet Helpline Sheet Yes
Text type Fastext Text Language English, French, Swedish, German
Spanish, Italian, Czech
Overlay Graphics And Text No Command List No Entry Point Jump No
(MPEG) Yes (PCM) Yes (DTS) Yes
(DTS)
w/Guarantee Card
Poles ­Terminal -
w/300 ohm to 75 ohm Antenna Adapter -
Terminal
UM size x pcs UM-4 x 2 pcs OEM Brand
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
A3-6
GENERAL SPECIFICATIONS
G-17 Interface Switch Front Standby Yes
Indicator Standby Yes(Red)
Terminals Front Video Input RCA x1
Rear Video Input
G-18 Set Size Approx. W x D x H (mm) 573 x 482 x 517 G-19 Weight Net (Approx.) 27.5kg (60.5lbs)
G-20 Carton Master Carton
Gift Box Yes
Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Container Stuffing(40' container) 216
G-21 Material Cabinet Front PS 94HB
PCB Non-Halogen Demand Yes
G-22 Environment Pb Free Lead-free Solder No
Cd Free No
Channel Up Yes Channel Down Yes Volume Up Yes Volume Down Yes Play (VCR) Yes Stop / Eject (VCR) Yes F.FWD/Cue (VCR) Yes Rew/Rev (VCR) Yes REC/OTR (VCR) Yes Play (DVD) Yes Stop (DVD) Yes Skip+/Search+ (DVD) Yes Skip-/Search- (DVD) Yes Open/Close (DVD) Yes Input Select No Main Power SW Yes
REC/OTR Yes(Red) T-REC Yes(Red) TV/VCR No DVD No
Audio Input RCA x2(STEREO) Other Terminal
Audio Input Video Output Audio Output RCA x2(STEREO) Digital Audio Output Coaxial (DVD Only) Euro Scart 1-SCART VHF/UHF Antenna Input DIN type AC Inlet No
Gross (Approx.) 31.0kg (68.2lbs)
Content ­Material ­Dimensions W x D x H(mm) ­Description of Origin -
Material Double/White Dimensions W x D x H(mm) 658 x 575 x 625 Design As per Buyer's Description of Origin Yes
Height (cm) 31
Rear PS 94V0 Non Decabrom Jack Panel -
Eyelet Demand Yes
Other No
Headphone (Stereo & Mono, 3.5mm)
No No No
No
Sets
A3-7
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.2.Remove the 6 screws 1.
Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1
1
1
1
1
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 CP853B).
3.
Remove the CRT PCB in the direction of arrow.
Back Cabinet
Fig. 1-1
1-3: POWER SW PCB (Refer to Fig. 1-3)
1.
Remove the 2 screws 1.
2.
Disconnect the following connector: (CP1704).
3.
Remove the Power SW PCB in the direction of arrow.
Front Cabinet
Power SW PCB
1
1
1-4: TV/DVD/VCR BLOCK (Refer to Fig. 1-4)
1.
Remove the 2 screws 1.
2.
Disconnect the following connectors: (CP352, CP402 and CP1702).
3.
Remove the TV/DVD/VCR Block in the direction of arrow.
Front Cabinet
1
1
Fig. 1-3
Front Cabinet
CRT PCB
TV/DVD/VCR Block
Fig. 1-4
Fig. 1-2
B1-1
DISASSEMBLY INSTRUCTIONS
1-5: FILTER PCB (Refer to Fig. 1-5)
1.
Remove the screw 1.
2.
Disconnect the following connector: (CP504).
3.
Remove the Filter PCB in the direction of arrow.
1
Filter PCB
TV/DVD/VCR Block
1-6: MAIN PCB (Refer to Fig. 1-6)
1.
Remove the 2 screws 1.
2.
Remove the 4 screws 2.
3.
Disconnect the following connectors: (CP3601, CP3602 and CP3603).
4.
Remove the Main PCB in the direction of arrow.
Main PCB
DVD/VCR Block
1
2
2
1
Fig. 1-5
2
2
1-7: TOP SHIELD (Refer to Fig. 1-7)
1.2.Remove the 11 screws 1. Remove the Top Shield in the direction of arrow.
Top Shield
1
1
1
1
1
1
1
1
DVD/VCR Block
1-8: DVD BLOCK (Refer to Fig. 1-8)
1.
Remove the 2 screws 1.
2.
Remove the VCR Holder.
3.
Remove the 4 screws 2.
4.
Disconnect the following connectors: (CP8001 and CP8002).
5.
Remove the DVD Block in the direction of arrow.
2
2
2
VCR Holder
2
1
1
1
Fig. 1-7
Fig. 1-6
B1-2
1
1
DVD Block
Bottom Plate
Fig. 1-8
DISASSEMBLY INSTRUCTIONS
1-9: OPERATION PCB/DVD PCB/DVD DECK
(Refer to Fig. 1-9)
1.
Make the short circuit on the position as shown Fig. 1-9 using a soldering. If you remove the DVD Deck with no soldering, the Laser may be damaged.
2.
Remove the 2 screws 1.
3.
Remove the Operation PCB in the direction of arrow (A).
4.
Remove the 2 screws 2.
5.
Remove the Front Shield in the direction of arrow (B).
6.
Remove the 4 screws 3.
7.
Remove the DVD Deck in the direction of arrow (C).
8.
Remove the 2 screws 4.
9.
Disconnect the following connectors: (CP2601, CP2602 and CP2603).
10.
Remove the DVD PCB in the direction of arrow (D).
NOTE
When the installation of the DVD Deck, remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.
4
4
DVD PCB
3
3
(D)
Pick Up PCB
1-10: VCR DECK (Refer to Fig. 1-10) NOTE
Do not remove the cable at the FE Head section. The FE Head may be damaged if you remove the cable by force.
1.
Move the Cassette Holder Ass'y to the back side.
2.
Remove the screw 1.
3.
Remove the FE Head.
4.
Remove the 3 screws 2.
5.
Remove the screw 3.
6.
Disconnect the following connectors: (CP1001, CP4501 and CP4505).
7.
Remove the AC Head Cover and VCR Deck in the direction of arrow.
2
2
1
FE Head
2
AC Head Cover
VCR Deck
DVD Deck
Operation PCB
1
2
2
1
(A)
Front Shield
(B)
(C)
3
3
Make the short circuit using a soldering.
Angle Deck
Fig. 1-9
3
1-11: VCR PCB (Refer to Fig. 1-11)
1.
Remove the 4 screws 1.
2.
Remove the AV Jack Shield.
3.
Remove the VCR PCB in the direction of arrow.
1
1
AV Jack Shield
VCR PCB
Bottom Plate
Fig. 1-10
1
1
B1-3
Bottom Plate
Fig. 1-11
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF VCR 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 one position 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 this position
Cassette Side R
is 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 Unit
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
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.
2.
In case of the Loading Motor installation, slacken the wire as shown Fig. 2-6-C.
3.
When installing the wires between Capstan DD Unit and Loading Motor, connect them correctly as shown Fig. 2-6-D.
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
Fig. 2-7-A
1
Tension Connect
Tension Spring
2
4
1
3
Tension Holder
Tension Band
Tension Arm Ass'y
19.2 ± 0.1mm
Safety surface for pressing of the insert.
Slacken the wire.
Loading Motor
Fig. 2-6-B
Fig. 2-6-C
Loading Motor Capstan DD Unit
-
+
Pink
L2
L1
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.
Tension Connect
Tension Band
Fig. 2-7-C
[OK]
[NG]
Tension Connect
Tension Connect
Tension Band
Tension Band
Fig. 2-7-D
White
Fig. 2-6-D
B2-2
Tension Connect
Main Chassis
Fig. 2-7-E
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. (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
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)
1
2
A/C Head
A/C Head Spring
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
(3)
(2)
(1)
• Screw Torque: 3 ± 0.5kgf•cm
2
2
2
Fig. 2-13
• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)
A/C Head Base
Fig. 2-11-A
B2-4
DISASSEMBLY INSTRUCTIONS
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14)
Remove the Capstan Belt.
1. Remove the screw 1.
2. Remove the Capstan Holder.
3. Remove the 3 screws 2.
4. Remove the Capstan DD Unit.
5.
1
2
2
2
• Screw Torque: 4 ± 0.5kgf•cm
2-15:
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR
Capstan Belt
Capstan Holder
Capstan DD Unit
(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
Fig. 2-14
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
Fig. 2-15-B
2-16: LOADING GEAR S/T UNIT (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 Unit and Loading Arm T Unit.
1
Main Rod
Tension Lever
Main Loading Gear
Loading Arm T Unit
Loading Arm S Unit
Main Cam
2
Pinch Roller Cam
Joint Gear
Fig. 2-15-A
Fig. 2-16-A
NOTE
When you install the Loading Arm S Unit, Loading Arm
1. T Unit and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Marker
Main Loading Gear
Marker
Loading Arm T Unit
Loading Arm S Unit
Fig. 2-16-B
B2-5
DISASSEMBLY INSTRUCTIONS
2-17:
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/ 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
Inclined Base S Unit
1
Cassette Guide Post
Inclined Base T Unit
P4 Cap
Coupling Gear
Coupling Spring
Clutch Gear
Clutch Lever
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
2-18:
CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP/LED REFLECTOR (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/T Unit.
3. Remove the screw 2.
4. Remove the LED Reflector.
5.
LED Reflector
• Screw Torque: 5 ± 0.5kgf•cm
2
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"
P4 Cap
"B"
Cassette Opener
Fig. 2-18-B
[OK]
Cassette Guide Post
[NG]
Cassette Guide Post
B2-6
Fig. 2-18-C
DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF DVD DECK PARTS
NOTE
1. Do not disassemble the DVD DECK PARTS except listed parts here. Minute adjustments are needed if the disassemble is done. If the repair is needed except listed parts, replace the DVD MECHA ASS'Y.
3-1: TRAY (Refer to Fig. 3-1-A)
Set the Tray opened. (Refer to the DISC REMOVAL
1.
METHOD AT NO POWER SUPPLY)
Unlock the 2 supports 1 and remove the Tray.
2.
Main Frame Ass'y
Tray
NOTE
In case of the Tray installation, install them as the
1. circled section of Fig. 3-1-B so that the each markers are met.
1
1
Fig. 3-1-A
NOTE
In case of the Main Chassis Ass'y, install it from (1) to
1. (4) in order. (Refer to Fig. 3-2-B) In case of the Main Chassis Ass'y installation, hook the
2. wire on the Main Frame Ass'y as shown Fig. 3-2-C.
Main Frame Ass'y (Bottom Side)
(3)
Rack Loading
(3)
(2)
(4)
Check Lock
Main Frame Ass'y
(3)
Traverse Holder
(1)
Main Chassis Ass'y
(4)
Fig. 3-2-B
Main Frame Ass'y
Tray
Fig. 3-1-B
3-2: MAIN CHASSIS ASS'Y (Refer to Fig. 3-2-A)
Remove the screw 1.
1. Unlock the 2 supports 2.
2. Remove the Insulator (R) from the Main Frame Ass'y.
3. Remove the Main Chassis Ass'y.
4.
1
2
2
Main Frame Ass'y
Insulator (R)
Check Hook
Fig. 3-2-C
3-3: LOADING MOTOR PCB ASS'Y/ LOADING BELT
(Refer to Fig. 3-3-A)
1.
Remove the Loading Belt.
2.
Remove the screw 1.
3.
Remove the 2 screws 2.
4.
Remove the Loading Motor PCB Ass'y.
5.
Remove the Pulley Gear.
Loading Belt
2
2
Main Frame Ass’y
Pulley Gear
1
• Screw Torque: 2.5 ± 0.3kgf•cm (Screw 1)
• Screw Torque: 1.0 ± 0.3kgf•cm (Screw 2)
Loading Motor PCB Ass’y
Fig. 3-3-A
Main Chassis Ass'y
• Screw Torque: 2.0 ± 0.5kgf•cm
Fig. 3-2-A
B3-1
DISASSEMBLY INSTRUCTIONS
NOTE
1.
In case of the Pulley Motor installation, check if the value of the Fig. 3-3-B is correct.
2.
When installing the Loading Motor PCB Ass'y, install it correctly as Fig. 3-3-C.
3.
In case of the Loading Motor PCB Ass'y installation, hook the wire on the Main Frame Ass'y as shown Fig. 3-3-C.
Pulley Motor
Loading Motor
Rack Loading
Safety surface for pressing of the insert.
The Lever should be position between A and B.
7.0 ± 0.1mm
Fig. 3-3-B
AB
3-5: CLAMPER ASS'Y (Refer to Fig. 3-5-A)
Press the Clamper and rotate the Clamper Plate
1. clockwise, then unlock the 3 supports 1. Remove the Clamper Plate, Clamper Magnet and
2. Clamper.
Clamper Plate
Clamper Magnet
Main Frame
1
1
Clamper
1
Fig. 3-5-A
NOTE
1. In case of the Clamper Ass'y installation, install correctly as Fig. 3-5-B.
Clamper Plate
Check Hook
Loading Motor PCB Ass’y
Fig. 3-3-C
3-4: RACK LOADING/MAIN GEAR/PULLEY GEAR
(Refer to Fig. 3-4-A)
1.
Press down the catcher 1 and slide the Rack Loading.
2.
Unlock the support 2 and remove the Pulley Gear.
3.
Remove the Main Gear.
Pulley Gear
Main Gear
2
1
Rack Loading
Main Frame Ass’y
Fig. 3-4-A
NOTE
1. In case of the Rack Loading installation, do not mesh it to the Main Gear as shown the Fig. 3-4-B.
Rack Loading
Check Hook
Clamper
No gap
Fig. 3-5-B
3-6:
TRAVERSE HOLDER/INSULATOR (F)/INSULATOR (R) (Refer to Fig. 3-6-A)
Remove the Traverse Holder.
1. Remove the 2 Insulator (F).
2. Remove the Insulator (R).
3.
Main Chassis Ass'y
Insulator (F)
Traverse Holder
Insulator (F)
Insulator (R)
Fig. 3-6-A
NOTE
1.2.In case of the Insulator (F) installation, install correctly as Fig. 3-6-B. In case of the Insulator (R) installation, install correctly as Fig. 3-6-C.
Main Gear
Fig. 3-4-B
Insulator (F)
Traverse Holder
Fig. 3-6-B
B3-2
DISASSEMBLY INSTRUCTIONS
Insulator (R)
3-7:
RACK FEED ASS'Y/SWITCH PCB ASS'Y/FEED
Main Chassis Ass'y (Top Side)
MOTOR (Refer to Fig. 3-7-A)
Remove the screw 1.
1. Remove the Rack Feed Ass'y.
2. Remove the screw 2.
3. Remove the Switch PCB Ass'y.
4. Remove the 2 screw 3.
5. Remove the Feed Motor.
6. Remove the Motor Gear.
7.
1
2
Switch PCB Ass'y
Main Chassis Ass'y
Screw Torque: 5.0 ± 0.3kgfcm (Screw 1)
Screw Torque: 3.0 ± 0.3kgfcm (Screw 2)
Screw Torque: 1.0 ± 0.3kgfcm (Screw 3)
Screw Torque: 3.5 ± 0.3kgfcm (Screw 4)
Rack Feed Ass'y
3
3
Fig. 3-6-C
Motor Gear
Feed Motor
Fig. 3-7-A
~ FEED MOTOR ~
Switch PCB Ass'y
~ SPINDLE MOTOR ~
Install wire from (1) to (4) in order.
Main Chassis Ass'y (Bottom Side)
Check Hook
Check Hook
Loosen the wire in the direction of the arrow.
Check Hook
BLUE (4) ORANGE (3)
BLACK (2) RED (1)
Fig. 3-7-D
Check Hook
Fig. 3-7-E
NOTE
1.
When pushing the Rack Feed in the direction of the arrow, it should be restored to the original position by the spring force. (Refer to Fig. 3-7-B)
2.
In case of the Motor Gear installation, check if the value of the Fig. 3-7-C is correct.
3.
When installing the wire of the Switch PCB Ass'y, install it correctly as Fig. 3-7-D.
4.
After the assembly of the Main Chassis Ass'y, hook the wire on the Main Chassis Ass'y as shown Fig. 3-7-E.
Push
Rack Feed Ass'y
Fig. 3-7-B
Motor Gear
Feed Motor
6.0 ± 0.2mm
Safety surface for pressing of the insert.
Fig. 3-7-C
B3-3
DISASSEMBLY INSTRUCTIONS
4. 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. 4-1.)
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. 4-3.)
NOTE
Confirm that there is no dirt, dust, etc. at the spot where the cap was located.
Location of Anode Cap
Fig. 4-3
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of
2. the arrow and remove one side of the support.
(Refer to Fig. 4-2.)
Rubber Cap
Support
CRT
Fig. 4-1
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. 4-4.)
Fig. 4-4
4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 4-5.
CRT
Support
Fig. 4-2
Support
CRT
5.6.Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
B4-1
Fig. 4-5
DISASSEMBLY INSTRUCTIONS
5.
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. 5-1.) 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. 5-3.)
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. 5-2.)
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. 5-1
Tweezers
IC
Peel off the Masking Tape.4. Absorb the solder left on the pattern using the Braided
5. Shield Wire. (Refer to Fig. 5-4.)
NOTE
Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Fig. 5-3
Braided Shield Wire
Soldering Iron
IC
Fig. 5-2
IC pattern
Fig. 5-4
B5-1
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. 5-5.)
Soldering Iron
Solder temporarily
Supply the solder from the upper position of IC leads
2.
Solder temporarily
sliding to the lower position of the IC leads. (Refer to Fig. 5-6.)
Fig. 5-5
When bridge-soldering between terminals and/or the
4. soldering amount are not enough, resolder using a Thin­tip Soldering Iron. (Refer to Fig. 5-8.)
Thin-tip Soldering Iron
IC
Fig. 5-8
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, always be 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. 5-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 5-6
Fig. 5-7
B5-2
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, Flip-flop
:
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
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
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