MEMOREX MVR4046A Service Manual
MVR4046A
SERVICE MANUAL
VIDEO CASSETTE RECORDER
ORIGINAL
MFR’S VERSION A
Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES 3. PUT PARTS AND WIRES IN THE
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. 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.
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.
PERFORM A SAFETY CHECK AFTER
4.
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.
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
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 ............................................................................................
KEY TO ABBREVIATIONS.........................................................................................................
SERVICE MODE LIST.................................................................................................................
PREVENTIVE CHECKS AND SERVICE INTERVALS..............................................................
NOTE FOR THE REPLACING OF MEMORY IC .......................................................................
SERVICING FIXTURES AND TOOLS........................................................................................
PREPARATION FOR SERVICING .............................................................................................
MECHANICAL ADJUSTMENTS.................................................................................................
ELECTRICAL ADJUSTMENTS ..................................................................................................
BLOCK DIAGRAMS
Y/C/AUDIO/CCD/HEAD AMP ..................................................................................................
SYSTEM CONTROL/SERVO/DECK.......................................................................................
TUNER.....................................................................................................................................
HI-FI.........................................................................................................................................
OPERATION/POWER .............................................................................................................
PRINTED CIRCUIT BOARDS
SYSCON/OPERATION/DECK.................................................................................................
SYSCON/OPERATION ............................................................................................................
SCHEMATIC DIAGRAMS
Y/C/AUDIO/CCD/HEAD AMP ..................................................................................................
SYSTEM CONTROL/SERVO ..................................................................................................
TUNER.....................................................................................................................................
POWER ...................................................................................................................................
OPERATION ...........................................................................................................................
HI-FI.........................................................................................................................................
DECK.......................................................................................................................................
INTERCONNECTION DIAGRAM................................................................................................
WAVEFORMS.............................................................................................................................
MECHANICAL EXPLODED VIEW .............................................................................................
CHASSIS EXPLODED VIEWS ...................................................................................................
MECHANICAL REPLACEMENT PARTS LIST..........................................................................
CHASSIS REPLACEMENT PARTS LIST ..................................................................................
ELECTRICAL REPLACEMENT PARTS LIST ...........................................................................
A1-1
A1-1
A2-1
A3-1~A3-6
B1-1
B2-1~B2-5
C1-1, C1-2
C2-1
C3-1, C3-2
C4-1
C5-1
C5-1
D1-1~D1-4
D2-1, D2-2
E-1, E-2
E-3, E-4
E-5, E-6
E-7, E-8
E-9, E-10
F-1, F-2
F-3, F-4
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
H-1, H-2
I-1
I-2, I-3
J1-1
J2-1
J3-1, J3-2
A2-1
GENERAL SPECIFICATIONS
G-1.Outline of the Product
3 -Speed 1/2" Video Cassette Recorder
G-2.VCR Format
VHS Standard NTSC PAL SECAM PAL-M PAL-N
VHS Hi-Fi Audio System
G-3.Video Recording System : Rotary,slant azimuth two head helical scan system
Luminance Component : FM recording
Chrominance Component: Low frequency converted direct recording
G-4.Broadcasting System
US System M
G-5.Color System NTSC PAL SECAM or Monochrome
G-6.NTSC Playback(PAL60Hz) Yes No
G-7.MESECAM Yes No
G-8.Cassette Tape
VHS type video cassette tape Width 12.65mm (1/2 Inch)
VHS-C type video cassette tape Width 12.65m m (1/2 Inch)
G-9.Tape Speed
NTSC or PAL-M PAL or SECAM
S P 33.35 mm/sec S P 23.39 mm/sec
LP 16.67 mm/sec LP 11.69 mm/sec
SL P 11.12 mm/sec
G-10.Recording/Playback Time
NTSC or PAL-M
at SP Mode Max. 210 min. (with T-210 cassette)
at LP Mode Max. 420 min. (with T-210 cassette)
at SLP Mode Max. 630 min. (with T-210 cassette)
PAL or SECAM
at SP Mode Max. 300 min. (with E-300 cassette)
at LP Mode Max. 600 min. (with E-300 cassette)
G-11.Deck
OVD-5 OVD-6 OVD-6S OVD-6S(Vertical)
G-12.Rewind/Fast Forward Time(Approx.)
FF:1' 48" / Rew:1' 48" (with T-120 cassette)
G-13.Search Speed
S P 3 and 5 Times
LP 7 and 9 Times
SLP 9 and 15 Times
G-14.Slow Speed
S P 1/5 ~ 1/30 Times
LP 1/5 ~ 1/30 Times
SLP 1/5 ~ 1/30 Times
G-15.Frame Advance
S P 1/10 Times
LP 1/10 Times
SLP 1/10 Times
G-16.Antenna Input Impedance
VHF/UHF 75 ohm unbalanced
(with E-180 cassette)
A3-1
GENERAL SPECIFICATIONS
G-17.Tuner and Receiving Channel
Tuner: Contactless Electric Tuner
Oscar(W/O HYPER) Oscar(W/ HYPER) France CATV Others
Channel coverage
2 ~ 69 , 4A , A-5 ~ A-1 , A ~ I , J ~ W , W+1 ~ W+84
Tuning System
Frequency syn. Voltage syn. Others
G-18.Preset Channel
No -- channels
Allocation ch ~ ch
ch ~ ch
ch ~ ch
G-19.Intermediate Frequency
Picture(FP) 45.75 MHz MHz MHz
Sound (FS) 41.25 MHz MHz MHz
FP-FS 4.50 MHz MHz MHz
G-20.RF Converter Output
Channel 3 or 4 ch. ~
Level/Impedance 66 dBµ / 75 ohm
Sound Selector Yes( G I K) No
G-21.Stereo/Dual TV Sound
Yes( NICAM GERMAN USA JAPAN) No
G-22.Video Signal
Input Level 1 Vp-p / 75 ohm
Output Level 1 Vp-p / 75 ohm
S/N Ratio 50 dB (Weighted)
Horizontal Resolution at SP Mode 230 Lines
G-23.Audio Signal
Input Level Microphone -- dB / -- Kohm
Line -- dB / -- Kohm
RCA - 8 dB / 50 Kohm
Output Level Line -- dB / -- Kohm
RCA - 8 dB / 1 Kohm(0dB=0.775 Vrms)
S/N Ratio at SP Mode 42 dB (Weighted)
Harmonic Distortion : 1.5 % (1KHz)
Frequency Response : at SP Mode 100 Hz ~ 10 KHz
Hi-Fi Audio Signal NONE
Depth Multiplex Recording Rotary, Slant Azimuth Two Head
System Helical Scan System
Dynamic Range : More than 90 dB
Wow And Flutter : Less than 0.01 % Wrms
Channel Separation : More than 60 dB
Harmonic Distortion : Less than 1 %
G-24.Heads
Video 4 Rotary Heads
FM Audio 2 Rotary Heads
Audio / Control 1 Stationary Head ( Mono Stereo(L,R) )
Erase 1 Full Track Erase
G-25.Motor: 3 Motors
Tape/Cassette Loading
Cylinder (Direct Drive)
Capstan (Direct Drive)
at LP Mode 100 Hz ~ 6 KHz
at SLP Mode 100 Hz ~ 4 KHz
A3-2
GENERAL SPECIFICATIONS
G-26.Power Source
120 V AC 50Hz AC 60Hz
G-27.Power Consumption: 11 W at AC 120 V 60 Hz
Stand by: 1.5 W at AC 120 V 60 Hz
Per Year: -- kWh / Year
G-28.Dimensions(Approx.)
360 mm(W) 240 mm(D) 95 mm(H)
G-29.Weight(Approx.) Net : 3.2 Kg ( 7.1 lbs)
Gross : 3.8 Kg ( 8.4 lbs)
G-30.Cabinet Material
Cabinet Front: PS 94HB DECABROM
ABS 94V2 NON-DECA
94V0
G-31.Cassette Loading System: Front Cassette Loading System
G-32.Tape Counter: Linear Time Tape Counter
G-33.Protector: Power Fuse Dew Sensor
G-34.Regulation
Safety
UL CSA SAA SI CE SEV
NEMKO FEMKO DEMKO IEC65 CNS SISIR
SEMKO NZ HOMOLO SABS GOST
NOM AS3159 DENTORI UNE NONE
Radiation
FCC DOC PTT CE SEV
SABA SI NZ HOMOLO UNE
CNS CISPR13 DENTORI AS/NZS NONE
G-35.Temperature
Operation 5 ºC ~ 40 ºC
Storage -20 ºC ~ 60 ºC
G-36.Operating Humidity : Less than 80 %RH
G-37.Clock and Timer
Built-in 1 Month 8 Events Programmable Timer
One Touch Recording : Max Time 5 Hours
G-38.Timer back up Time
More than 1/12 Minutes (at Power Off Mode)
G-39.Terminals
VHF/UHF Antenna Input/Output Din Type F-Type France Type
Front Video Input<RCA ø8.3>
Front Audio Input<RCA ø8.3> x2
Rear Video Input<RCA ø8.3>
Rear Audio Input<RCA ø8.3>
Rear Video Output<RCA ø8.3>
Rear Audio Output<RCA ø8.3> x2
21 Pin
G-40.Indicator
Power Play ATR Repeat Tape In
( Red ) ( ) ( ) ( ) ( )
TV/VCR REC T-REC NONE
( Red ) ( Red ) ( Red )
A3-3
G-41.Display
Fluorescent Indicator Yes No
On Screen Display
GENERAL SPECIFICATIONS
Clock/Counter,Channel,Timer Rec,OTR,Play,Rec,FF(Cue),Rew(Rev),
Pause,ATR,Eject
WKL,Y.M.D,Start,End AFT Repeat
VCR Memory Index VPS PDC
SP LP SLP AM PM
Menu
Clock Set( Calendar 12H 24H)
Timer Rec Se t
Auto Repeat On/Off
CH Se t TV/CATV
Auto CH Memory
ADD/Delete
Sap On/Off
No Noise Back Ground
Language
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry
NICAM M1/2,NICAM Off,Audio Output
Stereo,Audio Output,Bilingual
Stereo,Audio Output,SAP Stereo,Audio Output
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause
CH/AV Clock Memory Pin Code
Tape Counter Index Hotel Lock Tape Speed
Tracking Hi-Fi Tape In Repeat
Dirty Head
G-42.OSD Language
Eng Ger Fre Spa Ita Por Jan
OSD Language Setting
Eng Ger Fre Spa Ita Por Jan
Not Applicable
G-43.Carton
Master Carton: Need No Need
Content: ---- Set
Material: ---- / ---- Corrugated Carton
Dimensions: ---- mm(W) ---- mm(D) ---- mm(H)
Description of Origin Yes No
Gift Box Need No Need
Material Single/Brown Corrugated Carton ( with Photo Label)
Dimensions: 430 mm(W) 310 mm(D) 165 mm(H)
Design: As Per BUYER 's
Description of Origin: Yes No
Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Container Stuffing: 2,828 Sets / 40' container
Single/White Corrugated Carton ( with Photo Label)
Single Full Color Carton W/Photo
Height 25cm 31cm 46cm 62cm 80cm 100cm
A3-4
G-44.Accessories
Owner's Manual ( W/Guarantee Card) [English/French]
Remote Control Unit Dew Caution Sheet
Video Cassette Tape Battery (UM- 4 x 2 )
Safety Tip Toll Free Insert Sheet
Guarantee Card Audio-Video Cord (RCA)
Warning Sheet Quick Set-Up Sheet
Information Sheet U/V Mixer
75 ohm Coaxial Cable ( Single Shield Double Shield)
300 ohm to 75 ohm VHF Antenna Adaptor
21pin Cable Car Cord
G-45.Other Features
Auto Head Cleaning Index Search
Auto Tracking Auto Search
CH Auto Set-Up/Auto Clock ATS
VIDEO PLUS+, SHOWVIEW, G-CODE PDC
HQ (VHS Standard High Quality) VPS
Auto Power On, Auto Play, Auto Rewind, Auto Eject,Auto Power Off
Premiere/ Canal+ Full OSD
Forward / Reverse Picture Search SQPB
One Touch Playback SAP
CATV Channel Lock
Auto CH Memory Anti Theft
Just Clock Function Hotel Lock
Kurupika Guide CM Skip(30s x 6 Times)
Rental Game Position
Self Seeking Dirty Head Warning
Energy Star
GENERAL SPECIFICATIONS
G-46.Switch
Front
Rear
Power Channel Up Channel Down
Play F.FWD/Cue Rew/Rev
Pause/Still Eject/Stop Rec/OTR
System Select Input Select Output Select
One Touch Playback
RF-Converter Output Channel Selector( 1 or 2CH 3 or 4CH)
TV/CATV Selector
SIF Selector
A3-5
GENERAL SPECIFICATIONS
G-47.Remote Control Unit: RC-DC
Glow in Dark Remocon Yes No
Power Source: D.C 3 V Battery UM - 4 x 2
Control Key :Total 40 Key
0 Ch Up Power
1 Ch Down Eject
2 Input Select Play
3 Audio Select Stop
4 TV/VCR F.FWD
5 Pause/Still Rew
6 Slow Timer R e c
7 Slow Speed Up REC/OTR
8 Slow Speed Down Auto Tracking
9 Skip Search Tracking Up
Menu Speed Tracking Down
Set Up TV Monitor Counter Reset
Set Down Index Clock/Counter
Enter Program Zero Return
Cancel Video Plus One Touch Playback
Call Program/Video Plus
A3-6
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: TOP CABINET, FRONT CABINET AND
OPERATION PCB (Refer to Fig. 1-1)
1.
Remove the 4 screws 1.
2.
Remove the Top Cabinet in the direction of arrow (A).
3.
Disconnect the following connector: (CP651).
4.
Unlock the 7 supports 2.
5.
Remove the Front Cabinet in the direction of arrow (B).
6.
Remove the 4 screws 3 and remove the Operation PCB.
1
Top Cabinet
1
(A)
1
Front Cabinet
2
2
1-2: FLAP (Refer to Fig. 1-2)
1.2.Open Flap to 90˚ and flex in direction of arrow (A), at
the same time slide in direction of arrow (B).
Then lift in direction of arrow (C).
(B)
2
2
2
2
3
3
Operation PCB
2
3
3
Fig. 1-1
1-3: DECK CHASSIS (Refer to Fig. 1-3)
Remove the 3 screws 1.
1.
Remove the screw 2.
2.
Disconnect the following connectors: (CP1001, CP1002,
3.
CP1003, CP4001, CP4002 and CP4003).
Remove the Deck Chassis in the direction of arrow.
4.
2
1
1
1
Deck Chassis
1
Bottom Plate
Fig. 1-3
1-4: SYSCON PCB AND JACK PLATE (Refer to Fig. 1-4)
Remove the screw 1.
1.
Remove the Syscon PCB in the direction of arrow (A).
2.
Unlock the 2 supports 2.
3.
Remove the Jack Plate in the direction of arrow (B).
4.
(C)
(B)
(A)
Flap
Fig. 1-2
Syscon PCB
(A)
(B)
2
2
Jack Plate
Bottom Plate
1
Fig. 1-4
B1-1
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Remove the 2 screws 1.
1.
Slide the 2 supports 2 and remove the Top Bracket.
2.
NOTE
When you install the Top Bracket, install the screw (1)
first, then install the screw (2).
(2)
1
Top Bracket
2
Main Chassis
• Screw Torque: 5 ± 0.5kgf•cm
Top Bracket
2
Main Chassis
2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the back side.
1.
Remove the Polyslider Washer 1.
2.
Remove the Flap Lever.
3.
Unlock the 3 supports 2 and remove the Tape Guide R.
4.
(1)
1
Fig. 2-1
NOTE
When you install the Tape Guide L, install as shown in the
circle of Fig. 2-3-B. (Refer to Fig. 2-3-B)
Tape Guide L
REC Lever
• The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-B
2-4: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-4)
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
Locker R
Tape Guide R
Flap Lever
2
2
2
Main Chassis
1
Fig. 2-2
2-3: TAPE GUIDE L (Refer to Fig. 2-3-A)
Move the Cassette Holder Ass'y to the back side.
1.
Unlock the 2 supports 1 and remove the Tape Guide L.
2.
Remove the REC Lever. (Recorder only)
3.
REC Lever
Tape Guide L
1
Cassette Side L
Main Chassis
Fig. 2-4
2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
Unlock the 4 supports 1 and then remove the Cassette
1.
Side L/R.
NOTE
When you install the Cassette Side R, be sure to move the
Locker R after installing.
1
1
Locker R
Cassette Side R
1
1
Cassette Side L
Fig. 2-5
1
Main Chassis
• The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-A
B2-1
DISASSEMBLY INSTRUCTIONS
2-6: LINK ASS'Y (Refer to Fig. 2-6)
Set the Link Ass'y to the Eject position.
1.
Remove the (A) side of the Link Ass'y first, then remove
2.
the (B) side.
Link Ass'y
(A)
Main Chassis
(B)
Link Ass'y
Main Chassis
Fig. 2-6
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7)
Remove the Link Lever.
1.
Remove the Dumper Spring.
2.
Remove the 2 screws 1.
3.
Unlock the support 2 and remove the Loading Motor
4.
Ass'y.
Unlock the 2 supports 3 and remove the Deck PCB
5.
(BOT).
1
Dumper Spring
Loading Motor Ass'y
2
2-9: TENSION ASS'Y (Refer to Fig. 2-9-A)
Move the Inclined S Ass'y to the back side.
1.
Remove the Tension Spring.
2.
Unlock the support 1 and remove the Tension Arm
3.
Ass'y.
Remove the Tension Adjust.
4.
Unlock the 2 supports 2 and remove the Tension Band
5.
Ass'y.
Unlock the support 3 and remove the Tension Holder.
6.
Remove the SS Brake Spring.
7.
Remove the SS Arm Brake.
8.
Tension Adjust
2
Tension Spring
SS Brake Spring
SS Arm Brake
2
1
3
Tension Band Ass'y
Tension Arm Ass'y
Tension Holder
Inclined S Ass'y
Fig. 2-9-A
NOTE
When you install the Tension Adjust, install as shown in
Fig. 2-9-B. (Refer to Fig. 2-9-B)
3
Main Chassis
• Screw Torque: 5 ± 0.5kgf•cm
1
Deck PCB
(BOT)
2-8: SENSOR COVER L2 (Refer to Fig. 2-8)
Unlock the support 1 and remove the Sensor Cover L2.1.
Main Chassis
Sensor Cover L2
1
Link Lever
Fig. 2-7
Fig. 2-8
Adjust the direction of the Marker to inside.
2-10: T BRAKE ASS'Y (Refer to Fig. 2-10)
Remove the T Brake Spring.
1.
Remove the T Brake Ass'y.
2.
T Brake Ass'y
T Brake Spring
Fig. 2-9-B
Fig. 2-10
B2-2
DISASSEMBLY INSTRUCTIONS
2-11: S REEL/T REEL (Refer to Fig. 2-11)
Remove the S Reel and T Reel.
1.
Remove the 2 Polyslider Washers 1.
2.
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. 2-11) Do not adhere the stains
on it.
When you install the reel, clean the shaft and oil it (FL
5.
OIL #6115). (If you do not oil, noise may be heard in FF/
REW mode.)
After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
S Reel
(A)
1
T Reel
(A)
1
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1.
When you install the Pinch Roller Block, install as shown
2.
in the circle of Fig. 2-12-B. (Refer to Fig. 2-12-B)
Fig. 2-12-B
2-13: A/C HEAD (Refer to Fig. 2-13-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
Do not touch the A/C Head. (Use gloves.)
1.
When you install the A/C Head Spring, install as shown
2.
in Fig. 2-13-B. (Refer to Fig. 2-13-B)
When you install the A/C Head, tighten the screw (1)
3.
first, then tighten the screw (2), finally tighten the screw
(3).
2-12: PINCH ROLLER BLOCK/P5-3 ARM ASS'Y
(Refer to Fig. 2-12-A)
Remove the P5 Spring.
1.
Remove the screw 1.
2.
Unlock the 2 supports 2 and remove the Cassette
3.
Opener.
Remove the Pinch Roller Block, Pinch Roller Arm
4.
Spring, Pinch Roller Lever Ass'y and P5-3 Arm Ass'y.
P5 Spring
P5-3 Arm Ass'y
1
2
Cassette Opener
2
Pinch Roller Block
Pinch Roller Arm Spring
Pinch Roller Lever Ass'y
Main Chassis
Fig. 2-11
(3)
(1)
2
2
(2)
1
• Screw Torque: 4 ± 0.5kgf•cm (Screw 1)
2
Spring Position
A/C Head
A/C Head Spring
A/C Head Base
Fig. 2-13-A
Fig. 2-13-B
2-14: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-14)
Remove the screw 1.
1.
Remove the FE Head.
2.
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-12-A
B2-3
FE Head
• The FE Head is not installed on the Video Cassette Player.
• Screw Torque: 4 ± 0.5kgf•cm
1
Fig. 2-14
DISASSEMBLY INSTRUCTIONS
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-15)
Unlock the support 1 and remove the AHC Ass'y.
1.
Remove the 3 screws 2.
2.
Remove the Cylinder Unit Ass'y.
3.
NOTE
When you install the Cylinder Unit Ass'y, tighten the
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
AHC Ass'y
Cylinder Unit Ass'y
2
(2)
• Screw Torque: 3 ± 0.5kgf•cm
(1)
2
2
(3)
1
Fig. 2-15
2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16)
Remove the Capstan Belt.
1.
Remove the 3 screws 1.
2.
Remove the Capstan DD Unit.
3.
1
Middle Gear
E-Ring
Main Cam
Pinch Roller Cam
2
Joint Gear
P5 Cam
Fig. 2-17-A
NOTE
When you install the Pinch Roller Cam, P5 Cam and Main
Cam, align each marker. (Refer to Fig. 2-17-B)
Pinch Roller Cam
Check the hole of Main
Chassis can be seen.
Marker
Main Cam
P5 Cam
Capstan Belt
Capstan DD Unit
1
1
1
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-16
2-17: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-17-A)
Remove the Polyslider Washer 1, then remove the
1.
Middle Gear.
Remove the E-Ring, then remove the Main Cam, P5
2.
Cam and Pinch Roller Cam.
Remove the Polyslider Washer 2, then remove the
3.
Joint Gear.
Fig. 2-17-B
2-18: CLUTCH ASS'Y (Refer to Fig. 2-18)
Remove the Polyslider Washer 1.
1.
Remove the Clutch Ass'y, Ring Spring and Coupling
2.
Gear.
Unlock the 2 supports 2 and remove the Clutch Lever.
3.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Clutch Lever
2
2
Fig. 2-18
B2-4
DISASSEMBLY INSTRUCTIONS
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A)
Remove the E-Ring 1 and remove the Main Loading
1.
Gear.
Remove the Capstan Brake Spring.
2.
Slide the Main Rod and remove the Capstan Brake
3.
Ass'y.
Remove the Main Rod, Tension Lever, Clutch Actuator,
4.
Idler Arm Ass'y.
Remove the screw 2.
5.
Remove the LED Reflecter.
6.
Remove the Loading Arm S Ass'y and Loading Arm T
7.
Ass'y.
8.
Remove the Loading Gear S and Loading Gear T.
9.
Remove the Loading Gear Spring.
Capstan Brake Spring
Main Rod
Idler Arm Ass'y
LED Reflecter
Clutch Actuator
Capstan Brake Ass'y
1
2
Main Loading Gear
Tension Lever
Loading Gear T
Loading Gear
Spring
Loading Arm T Ass'y
Loading Gear S
Loading Gear
Spring
2. When you install the Clutch Actuator, install as shown in
the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C)
Clutch Actuator
Fig. 2-19-C
2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20)
Unlock the support 1 and remove the P4 Cover.
1.
Remove the screw 2.
2.
Unlock the support 3 and remove the Loading Gear
3.
Holder.
Remove the Inclined S.
4.
Remove the Inclined T.
5.
Remove the 2 screws 4, then remove the Guide Roller.
6.
NOTE
Do not touch the roller of Guide Roller.
2
Loading Gear Holder
Guide Roller
3
Loading Arm S Ass'y
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-19-A
NOTES
1. When you install the Loading Arm S Ass'y, Loading Arm
T Ass'y and Main Loading Gear, align each marker.
(Refer to Fig. 2-19-B)
Marker
Main Loading Gear
Marker
Loading Arm T Ass'y
Loading Arm S Ass'y
4
Inclined S
• Screw Torque: 5 ± 0.2kgf•cm (Screw 2)
• Screw Torque: 0.7 ± 0.2kgf•cm (Screw 4)
Guide Roller
4
Inclined T
P4 Cover
1
Fig. 2-20
Fig. 2-19-B
B2-5
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
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