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MVR2040A

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
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.

3. 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.

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.

4. PERFORM A SAFETY CHECK AFTER 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 ADJUSTMENT .................................................................................................... BLOCK DIAGRAMS Y/C/AUDIO/CCD/HEAD AMP .................................................................................................. SYSTEM CONTROL/SERVO/DECK ....................................................................................... TUNER ..................................................................................................................................... OPERATION/POWER ............................................................................................................. PRINTED CIRCUIT BOARDS SYSCON/OPERATION/DECK ................................................................................................. SYSCON/OPERATION ............................................................................................................ SCHEMATIC DIAGRAMS Y/C/AUDIO/CCD/HEAD AMP .................................................................................................. SYSTEM CONTROL/SERVO .................................................................................................. TUNER ..................................................................................................................................... POWER ................................................................................................................................... OPERATION ........................................................................................................................... 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 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 H-1 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 G-6. NTSC Playback(PAL60Hz) NTSC Yes PAL No SECAM or Monochrome

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 12.65mm (1/2 Inch) G-9. Tape Speed NTSC or PAL-M PAL or SECAM SP 33.35 mm/sec SP 23.39 mm/sec LP 16.67 mm/sec LP 11.69 mm/sec SLP 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 G-12.Rewind/Fast Forward Time(Approx.) FF:1' 48" / Rew:1' 48" (with T-120 cassette) (with E-180 cassette) G-13.Search Speed SP LP SLP G-14.Slow Speed SP LP SLP G-15.Frame Advance SP LP SLP 3 7 9 and 5 and 9 and 15 Times Times Times Times Times Times Times Times Times

OVD-6S(Vertical)

1/5 ~ 1/30 1/5 ~ 1/30 1/5 ~ 1/30 1/10 1/10 1/10

G-16.Antenna Input Impedance VHF/UHF 75 ohm unbalanced

A3- 1

GENERAL SPECIFICATIONS
G-17.Tuner and Receiving Channel Tuner: Contactless Electric Tuner Oscar(W/O HYPER) Oscar(W/ HYPER) Channel coverage 2 ~ 69 , 4A , A-5 ~ A-1 , A ~ I , J ~ W , Tuning System Frequency syn. Voltage syn. G-18.Preset Channel No Allocation -channels ch ~ ch ~ ch ~ 45.75 41.25 4.50 MHz MHz MHz ~ 75 I USA France CATV W+1 ~ W+84 Others Others

ch ch ch MHz MHz MHz MHz MHz MHz

G-19.Intermediate Frequency Picture(FP) Sound (FS) FP-FS G-20.RF Converter Output Channel Level/Impedance Sound Selector G-21.Stereo/Dual TV Sound Yes( NICAM

3 or 4 ch. 66 dB / Yes( G GERMAN

ohm K) JAPAN)

No 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 G-23.Audio Signal Input Level Microphone Line RCA Output Level Line RCA S/N Ratio at SP Mode Harmonic Distortion : Frequency Response : at SP at LP at SLP

Lines

-dB / -Kohm -dB / -Kohm -8 dB / 50 Kohm -dB / -Kohm -8 dB / 1 Kohm(0dB=0.775 42 dB (Weighted) 1.5 % (1KHz) Mode 100 Hz ~ 10 Mode 100 Hz ~ 6 Mode 100 Hz ~ 4

Vrms)

KHz KHz KHz

Hi-Fi Audio Signal NONE Depth Multiplex Recording Rotary, Slant Azimuth Two Head System Helical Scan System Dynamic Range : More than -- dB Wow And Flutter : Less than -- % Wrms Channel Separation : More than -- dB Harmonic Distortion : Less than -- % G-24.Heads Video FM Audio Audio / Control Erase G-25.Motor: 3 Motors Tape/Cassette Loading Cylinder (Direct Drive) Capstan (Direct Drive) 4 1 1 Rotary Heads Rotary Heads Stationary Head ( Full Track Erase Mono Stereo(L,R) )

A3- 2

GENERAL SPECIFICATIONS
G-26.Power Source 120 V AC 50Hz 11 2.5 -AC 60Hz W at AC 120 W at AC 120 kWh / Year V V 60 60 Hz(Approx.) Hz(Approx.) G-27.Power Consumption: Stand by: Per Year: G-28.Dimensions(Approx.) 360 mm(W) G-29.Weight(Approx.) G-30.Cabinet Material Cabinet Front: 240 Net Gross mm(D) : : 3.2 4.6 95 mm(H) 7.1 lbs) 10.2 lbs) DECABROM NON-DECA

Kg ( Kg ( 94HB 94V2 94V0

PS ABS

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 NEMKO SEMKO NOM Radiation FCC SABA CNS G-35.Temperature Operation Storage

CSA FEMKO NZ AS3159 DOC SI CISPR13 5 -20 C C ~ ~ 80

SAA DEMKO HOMOLO DENTORI PTT NZ DENTORI 40 60 %RH C C

SI IEC65 SABS UNE CE HOMOLO AS/NZS

CE CNS GOST NONE SEV UNE NONE

SEV SISIR

G-36.Operating Humidity : Less than

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 Front Video Input Front Audio Input Rear Video Input Rear Audio Input Rear Video Output Rear Audio Output 21 Pin G-40.Indicator Power ( Red ) TV/VCR ( Red ) Play ( REC ( Red ) ) ( ATR ) T-REC ( Red ) ( Repeat ) ( Tape In ) NONE Din Type F-Type France Type

A3- 3

GENERAL SPECIFICATIONS
G-41.Display Fluorescent Indicator Yes No Clock/Counter,Channel,Timer Rec,OTR,Play,Rec,FF(Cue),Rew(Rev), Still,Pause,ATR,Eject,Stop WKL,Y.M.D,Start,End AFT Repeat VCR Memory Index VPS PDC SP LP SLP AM PM On Screen Display Menu Clock Set( Calendar 12H 24H) Timer Rec Set Auto Repeat On Off Sap On Off CH Set TV/CATV Auto CH Memory Add/Delete Language No Noise Back Ground 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/Pause/T-Rec (Symbol) CH/AV Clock Memory Tape Counter Index Tracking Hi-Fi Dirty Head G-42.OSD Language Eng Ger OSD Language Setting Eng Ger Not Applicable Fre Fre Spa Spa Ita Ita Por Por

Pin Code Tape Speed

Jan Jan

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) Single/White Corrugated Carton ( with Photo Label) Single Full Color Carton W/Photo Dimensions: 450 mm(W) 345 mm(D) 195 mm(H) Design: As Per BUYER 's Description of Origin: Yes No Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces Height 25cm 31cm 46cm 62cm 80cm 100cm Container Stuffing: 1,870 Sets / 40' container

A3- 4

GENERAL SPECIFICATIONS
G-45.Accessories Owner's Manual ( W/Guarantee Card) [English/Spanish] 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 Registration Card Car Cord Tape Rewinder(Buyer Supply) G-45.Other Features Auto Head Cleaning Index Search Auto Tracking 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(30 sec. x 6 times ) Rental Game Position Self Seeking Dirty Head Warning Energy Star G-46.Switch Front Power Play Pause/Still System Select One Touch Playback Rear RF-Converter Output Channel Selector( TV/CATV Selector SIF Selector 1 or 2CH 3 or 4CH) Channel Up F.FWD/Cue Eject/Stop Input Select Channel Down Rew/Rev Rec/OTR Output Select

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 42 Key 0 1 2 3 4 5 6 7 8 9 Menu Set Up Set Down Enter Cancel Call Ch Up Ch Down Input Select Audio Select TV/VCR Pause/Still Slow Slow Speed Up Slow Speed Down Skip Search Speed TV Monitor Index Program Video Plus Program/Video Plus Power Eject Play Stop F.FWD Rew Timer Rec REC/OTR Auto Tracking Tracking Up Tracking Down Counter Reset Clock/Counter Zero Return One Touch Playback

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

1-3: DECK CHASSIS (Refer to Fig. 1-3) 1. Remove the 3 screws 1. 2. Remove the screw 2. 3. Disconnect the following connectors: (CP1001, CP1002, CP1003, CP4001, CP4002 and CP4003). 4. Remove the Deck Chassis in the direction of arrow.
1 1 2 1

Deck Chassis

1

1

(A)

1
Front Cabinet (B)

2 2

2 2

3 2

3

3 3

Bottom Plate

Fig. 1-3 1-4: SYSCON PCB AND JACK PLATE (Refer to Fig. 1-4) Fig. 1-1 1. Remove the screw 1. 2. Remove the Syscon PCB in the direction of arrow (A). 3. Unlock the 2 supports 2. 4. Remove the Jack Plate in the direction of arrow (B).

2

2

Operation PCB

1-2: FLAP (Refer to Fig. 1-2) 1. Open Flap to 90 and flex in direction of arrow (A), at the same time slide in direction of arrow (B). 2. Then lift in direction of arrow (C).

2 (A)
Syscon PCB

2

1

(C)
(A)

(B)

Jack Plate

(B)

Flap

Bottom Plate

Fig. 1-2

Fig. 1-4

B1-1

DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1) 1. Remove the 2 screws 1. 2. Slide the 2 supports 2 and remove the Top Bracket. NOTE
Tape Guide L

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)

When you install the Top Bracket, install the screw (1) first, then install the screw (2).
REC Lever (2)

1
Top Bracket

(1)

1

Top Bracket 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)
2
Main Chassis Main Chassis Screw Torque: 5 0.5kgfcm

2

1. Move the Cassette Holder Ass'y to the front side. 2. Push the Locker R to remove the Cassette Side R. 3. Remove the Cassette Side L. Fig. 2-1
Cassette Side R Main Chassis Locker R

2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2) 1. Move the Cassette Holder Ass'y to the back side. 2. Remove the Polyslider Washer 1. 3. Remove the Flap Lever. 4. Unlock the 3 supports 2 and remove the Tape Guide R.

Tape Guide R Flap Lever Cassette Side L Main Chassis

Fig. 2-4
2

2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
2 2 1
Main Chassis

1. Unlock the 4 supports 1 and then remove the Cassette Side L/R. Fig. 2-2 NOTE When you install the Cassette Side R, be sure to move the Locker R after installing.
1 1

2-3: TAPE GUIDE L (Refer to Fig. 2-3-A) 1. Move the Cassette Holder Ass'y to the back side. 2. Unlock the 2 supports 1 and remove the Tape Guide L. 3. Remove the REC Lever. (Recorder only)

REC Lever Locker R Tape Guide L Cassette Side R Cassette Side L

1

1

1

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) 1. Set the Link Ass'y to the Eject position. 2. Remove the (A) side of the Link Ass'y first, then remove the (B) side. 2-9: TENSION ASS'Y (Refer to Fig. 2-9-A) 1. Move the Inclined S Ass'y to the back side. 2. Remove the Tension Spring. 3. Unlock the support 1 and remove the Tension Arm Ass'y. 4. Remove the Tension Adjust. 5. Unlock the 2 supports 2 and remove the Tension Band Ass'y. 6. Unlock the support 3 and remove the Tension Holder. 7. Remove the SS Brake Spring. 8. Remove the SS Arm Brake.
Tension Adjust (B) (A) Link Ass'y

Link Ass'y

2 2
Main Chassis

Tension Band Ass'y

Main Chassis

Fig. 2-6
Tension Spring Tension Arm Ass'y

2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7) 1. Remove the Link Lever. 2. Remove the Dumper Spring. 3. Remove the 2 screws 1. 4. Unlock the support 2 and remove the Loading Motor Ass'y. 5. Unlock the 2 supports 3 and remove the Deck PCB (BOT).
1
Loading Motor Ass'y SS Brake Spring SS Arm Brake

1 3

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 Adjust the direction of the Marker to inside.

Dumper Spring

2

1
Deck PCB (BOT) Link Lever

Fig. 2-9-B 2-10: T BRAKE ASS'Y (Refer to Fig. 2-10) 1. Remove the T Brake Spring. 2. Remove the T Brake Ass'y. Fig. 2-7
T Brake Ass'y

Screw Torque: 5 0.5kgfcm

2-8: SENSOR COVER L3 (Refer to Fig. 2-8) 1. Unlock the support 1 and remove the Sensor Cover L3.

Main Chassis T Brake Spring Sensor Cover L3

1

Fig. 2-8

Fig. 2-10

B2-2

DISASSEMBLY INSTRUCTIONS
2-11: S REEL/T REEL (Refer to Fig. 2-11) 1. Remove the S Reel and T Reel. 2. Remove the 2 Polyslider Washers 1. NOTE 1. Take care not to damage the gears of the S Reel and T Reel. 2. The Polyslider Washer may be remained on the back of the reel. 3. Take care not to damage the shaft. 4. Do not touch the section "A" of S Reel and T Reel. (Use gloves.) (Refer to Fig. 2-11) Do not adhere the stains on it. 5. When you install the reel, clean the shaft and oil it (FL OIL #6115). (If you do not oil, noise may be heard in FF/ REW mode.) 6. After installing the reel, adjust the height of the reel. (Refer to MECHANICAL ADJUSTMENT)
S Reel

NOTE 1. Do not touch the Pinch Roller. (Use gloves.) 2. When you install the Pinch Roller Block, install as shown 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) 1. Remove the screw 1. 2. Remove the A/C Head Base. 3. Remove the 3 screws 2. 4. Remove the A/C Head and A/C Head Spring. NOTE

(A)

1

T Reel

(A)

1

1. Do not touch the A/C Head. (Use gloves.) 2. When you install the A/C Head Spring, install as shown in Fig. 2-13-B. (Refer to Fig. 2-13-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) (3)

2

2

Fig. 2-11 2-12: PINCH ROLLER BLOCK/P5-3 ARM ASS'Y (Refer to Fig. 2-12-A) 1. Remove the P5 Spring. 2. Remove the screw 1. 3. Unlock the 2 supports 2 and remove the Cassette Opener. 4. Remove the Pinch Roller Block, Pinch Roller Arm Spring, Pinch Roller Lever Ass'y and P5-3 Arm Ass'y.
1
P5 Spring

2
(2) A/C Head

A/C Head Spring

1
A/C Head Base Screw Torque: 4 0.5kgfcm (Screw 1)

Fig. 2-13-A

2
Cassette Opener

2
P5-3 Arm Ass'y Pinch Roller Block Pinch Roller Arm Spring Pinch Roller Lever Ass'y Spring Position

Fig. 2-13-B

2-14: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-14) 1. Remove the screw 1. 2. Remove the FE Head.
1
FE Head

Main Chassis

Screw Torque: 5 0.5kgfcm

Fig. 2-12-A

The FE Head is not installed on the Video Cassette Player. Screw Torque: 4 0.5kgfcm

Fig. 2-14

B2-3

DISASSEMBLY INSTRUCTIONS
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-15) 1. Unlock the support 1 and remove the AHC Ass'y. 2. Remove the 3 screws 2. 3. Remove the Cylinder Unit Ass'y. 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.
Pinch Roller Cam E-Ring Main Cam

1
Middle Gear

2
Joint Gear P5 Cam

AHC Ass'y

Fig. 2-17-A
Cylinder Unit Ass'y

1

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.

P5 Cam

2 (1)
(2) 2 Screw Torque: 3 0.5kgfcm

2
(3)

Fig. 2-15

Marker

Main Cam

2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16) 1. Remove the Capstan Belt. 2. Remove the 3 screws 1. 3. Remove the Capstan DD Unit. Fig. 2-17-B
Capstan Belt Capstan DD Unit

2-18: CLUTCH ASS'Y (Refer to Fig. 2-18) 1. Remove the Polyslider Washer 1. 2. Remove the Clutch Ass'y, Ring Spring and Coupling Gear. 3. Unlock the 2 supports 2 and remove the Clutch Lever.
1

1
Screw Torque: 5 0.5kgfcm

1 1

Clutch Ass'y

Fig. 2-16
Ring Spring

2-17: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-17-A) 1. Remove the Polyslider Washer 1, then remove the Middle Gear. 2. Remove the E-Ring, then remove the Main Cam, P5 Cam and Pinch Roller Cam. 3. Remove the Polyslider Washer 2, then remove the Joint Gear.

Coupling Gear

2
Clutch Lever

2

Fig. 2-18

B2-4

DISASSEMBLY INSTRUCTIONS
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A) 1. Remove the E-Ring 1 and remove the Main Loading Gear. 2. Remove the Capstan Brake Spring. 3. Slide the Main Rod and remove the Capstan Brake Ass'y. 4. Remove the Main Rod, Tension Lever, Clutch Actuator, Idler Arm Ass'y. 5. Remove the screw 2. 6. Remove the LED Reflecter. 7. Remove the Loading Arm S Ass'y and Loading Arm T Ass'y. 8. Remove the Loading Gear S and Loading Gear T. 9. Remove the Loading Gear Spring.
Capstan Brake Spring Capstan Brake Ass'y

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) 1. Unlock the support 1 and remove the P4 Cover. 2. Remove the screw 2. 3. Unlock the support 3 and remove the Loading Gear Holder. 4. Remove the Inclined S. 5. Remove the Inclined T. 6. Remove the 2 screws 4, then remove the Guide Roller. NOTE Do not touch the roller of Guide Roller.
2
Loading Gear Holder

1
Main Loading Gear Main Rod

Tension Lever Loading Gear T Idler Arm Ass'y

LED Reflecter

2

Loading Gear Spring Loading Arm T Ass'y Loading Gear S

Clutch Actuator

Loading Gear Spring

Guide Roller

3

Loading Arm S Ass'y Inclined S

4
Guide Roller

4
Screw Torque: 5 0.5kgfcm

Fig. 2-19-A
1

Inclined T P4 Cover

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

Screw Torque: 5 0.2kgfcm (Screw 2) Screw Torque: 0.7 0.2kgfcm (Screw 4)

Fig. 2-20

Marker

Loading Arm T Ass'y

Loading Arm S Ass'y

Fig. 2-19-B

B2-5

KEY TO ABBREVIATIONS
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 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 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 I H.SW Hz IC IF IND INV KIL L LED LIMIT AMP LM, LDM LP L.P.F LUMI. M MAX MINI MIX MM MOD MPX MS SW NC NR OSC OPE PB PB CTL PB-C PB-Y PCB P. CON PD PG P-P R REC REC-C REC-Y REEL BRK REEL S REF REG REW REV, RVS RF RMC RY 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

K L

M

N O P

R

S

C1-1

KEY TO ABBREVIATIONS
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 : : : : : : : : : : : : : : : : : : : : : 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

SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. Method Press both PLAY button and CH UP button on the set for more than 2 seconds. Operations Initialization of the factory. NOTE: Do not use this for the normal servicing. PLAY/REC total hours are displayed on the FIP. Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (CONFIRMATION OF USING HOURS). Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "NOTE FOR THE REPLACING OF MEMORY IC". 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"

While pressing the CH UP key on the set, press the FF key on the set for more than 2 seconds.

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.

C2-1

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 Replace when rolling becomes abnormal. Clean the Head Clean those parts in contact with the tape.
Clean the rubber, and parts which the rubber touches.

500 hours

1,000 hours

1,500 hours

2,000 hours

3,000 hours

Notes

CONFIRMATION OF USING HOURS
PLAY/REC total hours can be checked on the FIP. Total hours are displayed in 16 system of notation. 1. Turn on the POWER. 2. While pressing the CH UP button on the set, press the FF button on the set for more than 2 seconds. 3. Adjust the ADDRESS to "7D" by SET +/- button and read the DATA. (This DATA becomes the thousands digit and hundreds digit value of the following formula.) 4. Adjust the ADDRESS to "7E" by SET +/- button and read the DATA. (This DATA becomes the tens digit and ones digit value of the following formula.) 5. After the confirmation of using hours, turn off the power.

ADDRESS

DATA

(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)

C3-1

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 Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol and clean the audio control head by wiping it horizontally. 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

NOTE FOR THE REPLACING OF 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.
INI 00 DATA ADDRESS DATA 0A INI 13 00 INI 01 02 INI 14 00 INI 02 00 INI 15 00 INI 03 64 INI 16 00 INI 04 64 INI 17 00 INI 05 4A INI 18 00 INI 06 0A INI 19 00 INI 07 0B INI 08 26 INI 09 85 INI 0A 53 INI 0B 0C INI 0C 08 INI 0D 0C INI 0E 00 INI 0F 8C INI 10 68 INI 11 5C INI 12 53

ADDRESS

Table 1 1. Turn on the POWER. 2. While pressing the CH UP key on the set, press the FF key on the set for more than 2 seconds. ADDRESS and DATA will appear on TV Monitor as FIG 1.

ADDRESS

DATA

Fig. 1 3. ADDRESS is now selected and should "blink". Using the FF or REW 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 FF or REW button 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

SERVICING FIXTURES AND TOOLS
(For 2 heads model) VHS Alignment Tape JG001 (VN 2 S-LI6 3 ) JG001A (VN 2 S-CO13 ) JG001Q (VN 2 S-LI6 3 H) JG001T (VN 2 S-X6 3 ) (For 4 heads model) VHS Alignment Tape JG001B (VN 1 S-LI6 3 ) JG001I (VN 1 S-CO13 ) JG001P (VN 1 S-LI6 3 H) JG001S (VN 1 S-X6 3 )

JG002B Adapter JG002E Dial Torque Gauge (10~90gfcm) JG002F (60~600gfcm)

JG005 Post Adjustment Screwdriver Part No. SV-TG0-030-000 (small)

JG153 X Value Adjustment Screwdriver

JG022 Master Plane

JG024A Reel Disk Height Adjustment Jig

JG100A Torque Tape (VHT-063)

JG154 Cable

Tentelometer

Part No. JG001 JG001A JG001Q JG001T JG001B JG001I JG001P JG001S JG002B JG002E JG002F JG005 JG153 JG022/JG024A JG100A JG154 Monoscope, 6KHz (For 2 heads model) Color Bar, 1KHz (For 2 heads model) Hi-Fi Audio (For 2 heads Hi-Fi model) X Value Adjustment (For 2 heads model) Monoscope, 6KHz (For 4 heads model) Color Bar, 1KHz (For 4 heads model) Hi-Fi Audio (For 4 heads Hi-Fi model) X Value Adjustment (For 4 heads model)

Remarks

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 Playback Torque, Back Tension Torque During Playback Used to connect the test point of SERVICE and GROUND

PREPARATION FOR SERVICING
1. Short circuit between TP1001 and Ground with the cable JG154. (Refer to MAJOR COMPONENTS LOCATION GUIDE) 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

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. 1-1: CONFIRMATION AND ADJUSTMENT OF REEL 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. 11-A. 3. Confirm that "A" of the reel disk is lower than "B" of the reel disk height adjustment jig (JG024A) , and is higher than "C". If it is not enough height, adjust to 10(+0.2, -0) mm with the height adjustment washer. 4. Adjust the other reel in the same way.
Master Plane (JG022)

1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION 1. Set to the PLAY mode. 2. Adjust the Tension Adjust until the edge of the Tension Arm is positioning within 0.5mm range from the standard line center of Main Chassis. After this adjustment, confirm that the cut position is located in "A" area as shown in Fig. 1-2-B. If it is located in "B" area, adjust again. 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) Standard line center of Main Chassis Tension Adjust

Fig. 1-2-A

Reel Disk Height Adjustment Jig (JG024A)

(A) Cut Position

(B) Tension Adjust

Fig. 1-2-B 1-3: CONFIRMATION OF PLAYBACK TORQUE AND BACK TENSION TORQUE DURING PLAYBACK Fig. 1-1-A
Reel Disk Height Adjustment Jig (JG024A) (B)

Reel Disk

1. Load a video tape (T-120) recorded in standard speed mode. Set the unit to the PLAY mode. 2. Install the tentelometer as shown in Fig. 1-3. Confirm that 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 60~110gfcm during playback in SP mode. 3. Confirm that the left meter of the torque tape indicates 25~40gfcm during playback in SP mode.
Tentelometer

Master Plane (JG022)

10(+0.2, -0)mm (C)

(A) Height Adjustment Washer 2.6x4.7xT0.13 2.6X4.7xT0.25

Video Tape

Fig. 1-1-B

P1 Post

Guide Roller

Fig. 1-3 D1-1

MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE 1. Operate within 4~5 seconds after the reel disk begins to turn. 2. Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Set to the Rewind mode. (Refer to Fig.1-4) 3. Then, confirm that it indicates 120~180gfcm. 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) 1. Set to the STOP mode. 2. Move the Idler Ass'y from the S Reel. 3. Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise. 4. Then, confirm that it indicates 60~100gfcm. (T Reel Brake) (Refer to Fig. 1-4) 1. Set to the STOP mode. 2. Move the Idler Ass'y from the T Reel. 3. Install the Torque Gauge (JG002E) and Adapter (JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise. 4. Then, confirm that it indicates 45~70gfcm.
Torque Gauge/Adapter (JG002F/JG002B)

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 1. Playback the VHS Alignment Tape (JG001 or JG001B). (Refer to SERVICING FIXTURE AND TOOLS) 2. Connect CH-1 of the oscilloscope to TP4001 (Envelope) and CH-2 to TP1002 (SW Pulse). 3. Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. 4. Trigger with SW Pulse and observe the envelope. (Refer to Fig. 2-1-A) 5. When observing the envelope, adjust the Adjusting 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. 6. Adjust so that the A : B ratio is better than 3 : 2 as shown 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). 7. Adjust the PG shifter during playback. (Refer to the ELECTRICAL ADJUSTMENTS) NOTE After adjustment, confirm and adjust A/C head. (Refer to item 2-2)
CH-1 Envelope (TP4001)

Torque Gauge/Adapter (JG002E/JG002B)

CH-1 Track CH-2 SW Pulse (TP1002)

CH-2 Track

S Reel

Envelope

T Reel

(1)

Fig. 1-4 NOTE If the torque is out of the range, replace the following parts. Check item 1-4 1-5 Replacement Part Idler Ass'y/Clutch Ass'y

CH-3 Audio (2)

Fig. 2-1-A

Entrance

Exit

Max

T Brake Spring/Tension Spring

A

B

Max

A:B=3:2

Fig. 2-1-B

D1-2

MECHANICAL ADJUSTMENTS
2-2: 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: TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT) 1. Confirm and adjust the height of the Reel Disk. (Refer to item 1-1) 2. Confirm and adjust the position of the Tension Post. (Refer to item 1-2) 3. Adjust the Guide Roller. (Refer to item 2-1) 4. Confirm and adjust the Audio/Control Head. (Refer to item 2-2) 5. Connect CH-1 of the oscilloscope to TP4001, CH-2 to TP1002 and CH-3 to HOT side of Audio Out Jack. 6. Playback the VHS Alignment Tape (JG001S or JG001T). (Refer to SERVICING FIXTURE AND TOOLS) 7. Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. 8. Set the X Value adjustment driver (JG153) to the 4 of 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. 2-1-A. 2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only) 1. Connect CH-1 of the oscilloscope to TP4001, CH-2 to TP1002 and CH-3 to the Hi-Fi Audio Out Jack. 2. Playback the VHS Alignment Tape (JG001P or JG001Q). (Refer to SERVICING FIXTURE AND TOOLS) 3. Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. 4. Press the Tracking Up button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). 5. Press the Tracking Down button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). 6. Confirm that the difference between these counted steps number in the above items are within 2 steps. If the difference are more than 3 steps, do Tape Running Adjustment again. (Refer to item 2-3)

Stamp Mark

Fig. 2-2-A

Audio/Control Head

3

1

2 4

Fig. 2-2-B

Audio/Control Head Tape

0.250.05mm

Fig. 2-2-C

D1-3

MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE

5

6

4

3 7 2 1 8

10

9

1. Tension Adjust 2. Tension Arm 3. Guide Roller 4. P1 Post 5. Audio/Control Head

6. X value adjustment driver hole 7. P4 Post 8. T Brake Spring 9. T Reel 10. S Reel

D1-4

ELECTRICAL ADJUSTMENTS
Read and perform this adjustment when repairing the circuits or replacing electrical parts or PCB assemblies.

1. BASIC ADJUSTMENT
CAUTION When replacing IC's or transistors, use only specified silicon grease (YG6260M). (To prevent the damage to IC's and transistors.) 1-1: PG SHIFTER CONDITIONS MODE-PLAYBACK Input Signal-Alignment Tape (JG001B) INSTRUCTIONS 1. Connect CH-1on the oscilloscope to TP1002 and CH-2 to TP4201. 2. Playback the alignment tape. (JG001B) 3. Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. 4. While pressing the CH UP button on the set, press the STOP button on the set for more than 2 seconds. if the indicator ATR disappear's, the adjustment is finished. (Refer to Fig. 1-1-A, B)

CH-2

6.5H

CH-1

Fig. 1-1-A

CH-2

CH-1 6.5H

Fig. 1-1-B

D2-1

ELECTRICAL ADJUSTMENTS
2. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE

TP1001

T501

TU6001

TP4001 TP1002

TP4201 J4201

SYSCON PCB

D2-2

Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
Q4007 BUFFER X4001 3.579545MHz Y/C/AUDIO/CCD/ HEAD AMP IC IC4001 LA71077BM-MPB Q4008 BUFFER Q4009 BUFFER

62
VX01 85 L H

61

51
PULL TIMMING

53

49
OUT

47 4FSC
59 CLAMP 55
DETAL ENH

SP/LP/EP-H INPUT_SEL TRICK_PB-H/EE-H DOC_XO_CTL
SYSCON/ SERVO/DECK

DRIVER

CCD
FM MOD

H.SW

REC FM-EQ

WC DC

NL EMPHA V/I CONV

30 19 CLAMP P P 28 R R
YNR/ COMB N.L. DEEM NC1 Y/C MIX VCA CLAMP

84 83 CP4001
1 EP/LP_CH2 (L) H H.AMP SW L

AGC AMP

KIL C-LPF

25

Y-LPF

82
88

P

R

2 EP/LP_COM 3 EP/LP_CH1 (R) 4 CYL 5 SP-CH2 (L) SP_COM

GCA
R

B-UP AMP ACC AMP
R

Main CONV
P

3.58M BPF2

46 44

89 90
H

FM AGC DELAY
H.SW L

P

3.58M BPF1 KIL B.D. PB AMP

Y/C R/P
AUDIO R/P
COMP OUT

16 17 Q4004 BUFFER

REC/EE/PB

6 SP-CH1 (R) 7 8 9

94 14 13 12 11 93 15 31

COMP C.ROTARY H.SW AUDIO_MUTE-H V.REC_ST-H ENV.DET H.AMP_SW DUMMY_V.SYNC OSD_V C.SYNC
SYSCON/ SERVO/DECK

91

PB FM-EQ PB PHASE-EQ
DOUBLE LIM FM DEM SUB LPF
V-AGC

1/2

C ROT

P

7 5
FE HEAD 1 FE HEAD (HOT) 2 FE HEAD (GND)

REC AMP

R

RF SW IN AUDIO FBC MUTE H.A R/P ENV DET Chara INS.
H.A SW

6

P

R

AUTO BIAS
4 PB.EE 99 EQ AMP

LINE AMP MUTE

ALC
6dB
SYNC SEP

35 34

3

2

1

100

96

98 97

78 76

42 40
FSC

CP4002
6
5 HEAD AUDIO CONTROL 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+) 4 1 6 3 Q4006 BIAS OSC
T4001

Q4005 2
BIAS CTL

FRONT_V_IN TUNER_V TUNER_A FRONT_A_IN-L P.CON+5V FROM_NORMAL_A TUNER

5

Q4001, Q4002
AUDIO PB SW

Q4003 SW

CTL+ CTL-

SYSCON/ SERVO/DECK

E-1

E-2

SYSTEM CONTROL/SERVO/DECK BLOCK DIAGRAM

TIMER SYSCON SERVO CONTROLLER IC IC1001 OEC0089A
POWER

POWER_ON-H POWER_FAIL
X1001 10MHz

80 POWER ON H

C.SYNC 54 P_OFF-L 55 4 FSC OUT SP/LP/EP-H REC/EE/PB
DUMMY V.SYNC

C.SYNC
4FSC

89 POWER FAIL-H 73 OSC 2 72 OSC 1

52 83 1 27 SP/LP/EP-H REC/EE/PB
DUMMY_V.SYNC

H.SW 24 C.ROTARY
KEY-B OPERATION KEY-A REM_IN 8 9 KEY-B KEY-A TRICK PB-H

H.SW C.ROTARY TRICK_PB-H/EE-H AUDIO_MUTE-H COMP V.REC_ST-H
ENV.DET
Y/C/AUDIO/CCD/ HEAD AMP

28 85 59 30 56 14 43
31 32

A.MUTE COMP V.REC ST-H

DECK BLK

CP1003 1 VCC 2 BOT

82 REM IN P.CON+5V 3 BOT-H 12 EOT-H

ENV DET

BOT SENSOR Q101 EOT SENSOR Q1006 2
REEL SENSOR Q1001

CV IN CTL-H(+) CTL-H(-) P.CON+5V 1 2 1
REEL SENSOR Q1002

OSD_V CTL+ CTLDOC_XO_CTL
INPUT_SEL

DOC_XO_CTL 100 INPUT SEL H.AMP SW

20 29
11 45

MICRO MOTOR

CP1001 3 CYL PG 5 CYL FG 7 CYL DRIVE

P.CON+5V

4

3

4

3 87 REEL-T 88 REEL-S 39 DPG 38 DFG 26 DRUM PWM

H.AMP_SW
AFT-S.CURVE VIDEO_OUT

AFT S.CURVE
CV OUT (TV/VCR)VCR-H

84 98 99
6 CL

TV/VCR IIC_CLK
IIC_DATA

TUNER

FS/IIC CLK
IIC DATA

CAPSTAN DD UNIT

CP1002 3 I LIMIT 4 CTL 6 FG 7 CAP/M/F/R

21 CAP FULL 25 CAP PWM 66 CAP LIMIT 40 CFG 60 CAP FWD 76 SENS LED Q1003 RESET 16

IC1003 RE5VS31A
3

5 DA

EEP ROM IC IC1099 S-24C01BDP AT+5V (M-COM)

SYSTEM RESET IC
2

1

D1009 IC1002 BA6955AN

SW1001 TAB SW 92 64 63
TAB SW

LOADING MOTOR DRIVER IC
2 4 1 8 7 5 CP1003 LDMLDM+ AT+12.6_V FL_CS FL_S_CLK FL_SD_OUT OPERATION

POWER

MODE VCC

SW. 2 MS_SEN B Q1004 3 4 3 4

7

MS SEN-A MS SEN-B

1

2

1 MS_SEN A Q1005

6

LDM FWD-H LDM REV-H
FL_CS FL_S_CLK

M101 LOADING MOTOR 3 M 4

94 95 97

18 CENT LED

AT+5V
D1001 Q1007 CENT SW.

FL_SD_OUT

P.CON+5V

E-3

E-4

TUNER BLOCK DIAGRAM

REAR OUT JACK J4201 3
Q4201

MONO FRONT JACK J4203 2 4

2

SYSCON/ SERVO/DECK

VIDEO_OUT

BUFFER

AT_13T
TU6001

RF-SW SW6001
2

FRONT_A_IN-L FRONT_V_IN FSC TUNER_V Y/C/AUDIO/CCD/ HEAD AMP

15 2 3
5 6 11

TUNER_A FROM_NORMAL_A

TV/VCR

IIC_CLK IIC_DATA

12
16 21

SYSCON/ SERVO/DECK

23 24

AFT-S.CURVE

+32V

E-5

E-6

OPERATION BLOCK DIAGRAM
V651 7-MT_201GA

14

11 10

4 23

22 21

17

1

2

25 26 HEATER_DC-

9

6 17

11 31

30 5

1

HEATER_DC+

POWER

CP601
KEY-A

CP651 4 3 4 3
KEY-A KEY-B FL_CS FL_SD_OUT SYSCON/ SERVO/DECK

CH-UP CH-DOWN
FIP DRIVER IC IC 651 BU2977FS

KEY-B

23

24

26
STOP/EJECT REC/OTR FF/CUE PLAY REW/REV POWER

FL_S_CLK

OS651 1 3
REM_IN AT+5V

POWER BLOCK DIAGRAM
T501 6 7 HEATER_DCOPERATION HEATER_DC+ +32V

13
5 2 4

10 9 12 11 IC501 KIA431
AT+12.6V P.CON+5V

D505, D508 D523, D528 Q503 SW. Q502 CONTROL Q511 PHOTO COUPLER

VOLTAGE CTL IC

1

2

Q501
Q510 PHOTO COUPLER

Q504
P.ON SW POWER_ON-H SYSCON/ SERVO/DECK

P.CON+5V SW

MODE VCC L501 POWER_FAIL

AC IN

E-7

E-8

PRINTED CIRCUIT BOARDS

SYSCON/OPERATION (INSERTED PARTS)
SOLDER SIDE
C656 V651 OS651 D517 D524 L504 C514 S102 R508 D651 C519 D512 L505 C518 C502 SW660 SW659 S101

DECK
SOLDER SIDE
CP101 S105 S106 S104 CP651_1 Q101 S103

W004

C657

W035 W034

J4203_1 W115 D4205 W819 SW1001

W114

C4212 W160 W164

TP1001

W113

R663

R501

C520

Q501 D1005

C503

W112

R529

D519

C522 Q1003 W003 D514 W161 W824

C506 C523 D502

SW604_1

W073

W031

W030

W068

R1010

R1013

W001

W138

SW608 SW605 W111

D1006 R1021 R1018

D504

B501

W070

W067

W071

D503

W828 W086

IC1099 C1013

X1001

W040

W039

CP601_1 SW603_1 W144 W116 SW606_1

W011 W162 Q1004 W010

D515

T501

W832

W084 Q1001 W083 W167 W166 W079

W808

Q1

00

5
W008 W007 D510 R534 Q503 R513

Q1

C1012

W807

L1001 C1027

00 2
C1018

D1008

W081

VEX905A
SW607

W006 R1003 R1015

W005

C1022

D1009 W078 W100 W099 W056 C1020

R511

D507 C1029 W036

IC1003 W037 W092 W091 W057 C1026 W097 W055 W089

D511 B502 C509 R512

R514

R1053

TU6001 W093 W829 W152 Q1006 C6003 W125 W168

R504 W053 W054

D1001 W041 W098 W088 W090 W044 W043

C512 C508 Q502 W012 W024 W023 R1041 R1046 W022 IC501 C1035 R1054 D1002 W021 R1007 Q510 R505 Q511 W015 W014 W013

W051 W052

W050

L4002

W045

W145

L4008 Q4009 Q4008

C4045 W169 W046 C4058

W150

W135

W121

W049 W047 W042

R4033

W048

W102

C4033

C4037

C4039

C5

W119

W813 W159 C6010 R6010 L6002 L6003 L6001 R6004 SW6001 C6008 C4201 TP4201 W816 R4201 C4209 Q4201

05

W812

C4070 C4050

C4060 W061 R4062 R4063

D508

L4005 W134 TP4001 W131 TP1002 C4065 Q4007 C4066 W130 W132 X4001 C4030 C4031

D523

C4059 C4061

C4062 C4057

D506 L501

D528

D505 R527

W020 W019 D1004 W827 W017

CP4 003

C4044 C4023

R4078_1 W060 W059 W018 C1001 C4035 C4034 C4071 IC1002 W026 Q4006 W064 T4001 L4003 C4010 D1003 W027

W803 C4026

1 CP

00

2

W821

L4007

W101

C4043

C4038

FH502

C4021 C4001 W109 C4011

C4024

C504

Q4005

C4016

F501

W025

R502

1.6A250V

W028

W108 W106

L4001

FH501

C4022

W811

C4004

W063

W105 W107

C4017

W104 J4201_1 CP4001

C4002 W062

CP1003 CP501

W103 Q4002

R4027

Q4004

Q4001 CP4002

CP1001

F-1

F-2

F-3
C510 C501 C507 C511 R518 C515 R516 R506 R510 R1052 R1024 C1030 R1051 R1050 R1055 R1009 R1023 C1021 R1047 R4067 Q504 R661 R509 R4068 R4015 R4069 C1017 R4070 R4047 R507 R1030_1 C1006 C1036 C4047 R4049 R1036 C4056 C1031 R1035 R4065 R1038 R1048 51 C1015 R1045 R1042 C663 81 1 R4057 C1011 31 IC1001 R1033 C1010 R4060 R4055 C4054 C4052 C4053 R4051 R4010 C4005 C4006 R4001 R1039 C1007 R1025 C1033 R1049 C1023 C1019 C1025 C1014 R1044 C1016 R1040 R1043 R1011 R4011 C4074 R4002 Q4003 R4048 C4049 C4041 C4025 C4027 C4020 R4032 R4025 R4034 R4023 R4020 31 R4022 C660 R1008 R1037 C655 51 R1014 C1008 R4004 R4003 C4018 R1012 R4072 C1009 R1034 1

SOLDER SIDE

R4024 C4068 R4021 R4009

IC4001

R4059 R4053

IC651

R4008 R4013 R4012 C4048 C4055 R4050 Q1007

C4009

81 C4003 R1027 R1019 R1017 C1024 R1005 C4036 R1026 R4046 R4043 R4045 R4029 R4044 C4032 C4029 C4028

PRINTED CIRCUIT BOARDS SYSCON/OPERATION (CHIP MOUNTED PARTS)

R662 C654

R4026 R4019

R4209

R1004 C6014

R4028 R4031

VEX905A

R605 R601

R607

R604

C4202

R603

R602 C6013

R1006 R4204 R4210

R4202 R6009 R6008 C6009 R4206 R6006 R6005 C6002 C6001

F-4

A

B

C

D

E

F

G

H

Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
8
FRONT_A_IN-L TUNER_A P.CON+5V

(SYSCON PCB)
SP/LP/EP-H INPUT_SEL

8

L4002 47K R4026 R4031 47K 100uH 0305 6.3V 47 KA

R4019

7
P.CON+5V GND

4.7K

6.8K

FROM POWER

R4028

C4070

L4008 100uH 0305 R4043 3.3K BUFER Q4007 2SC1815Y 3.0 8.2K 50V 1 KA R4045 1.8K 5.2 C4032 0.022 B C4033

7
6.3V 47 KA

W812

B

33 KA

C4036

C4021

0.022

50V 1 KA

6.3V

C4045

R4029 2.2M

2.4 6.3V 22 KA 16V 10 KA C4065 50V 1 KA C4026 TP4001

C4037

R4065 F C4044 R4053 1.8K 2.2K BUFFER Q4008 2SC1815Y 1K 5.2 3.7 3.0 R4059 FROM/TO TUNER

6.3V 22 KA

C4030

R4046

1.5K

0.1

50V 1 KA

FSC 4FSC FRONT_V_IN FRONT_A_IN-L

C4023

C4031 50V 1 KA

6
C4066 Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71077BM-MPB NC 2.4 2.4 2.4 80 81 0 FROM/TO CYL CP4001 TOC-C09X-A1 1.8 1.8 1.8 NC NC NC SP-CH1 (R) SP_COM SP-CH2 (L) EP/LP-CH1 (R) EP/LP_COM EP/LP-CH2 (L) R4024 ENV.DET 5.1 BUFFER Q4004 2SC1815Y COMP 4 FROM_NORMAL_A R4072 18K 0.001 B C4068 R4008 12K 0 0 100K R4021 47K R4004 2.7K R4009 2.2K R4012 18K C4016 C4009 0.1 F C4011 50V 1 KA P.CON+5V L4001 100uH 0305 6.3V 47 KA C4003 C4001 0.1 F 1.8 0 5.1 1.8 1.8 1.8 1.8 0 1.0 0 0 2.8 79

NC 3 C4028 1K 1/4W

R4044

2 3.579545MHz

C4039

6

C4048 0.01 B

50V 1 KA

R4050 680K

0.047 F

C4050 0.01 F

TUNER_V C4055 F 0.022 TUNER_A FROM_NORMAL_A

0.1 B

C4029

NC NC NC 0 2.4 5.0 2.3 2.3 2.8 2.3 1.5 2.0 78 77 76 75 74 A-Vcc 73 72 71

R4033

H.A GND
CH4

84

REC EP OUT

H L

Vref 2.3V ALC
H.AMP H SW

85

46

5

9 8 7 6 5 4 3 2 1

CH3

H.A GND H.A VCC
CH2

NC 0 1.4 4.0 2.3 2.2 3.0 4.1 3.4 4.9 3.4 5.0 5.0 2.5 5.0 3.7 2.3 0.1 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 ALWAYS C-VCC VDD 4Fsc CLOCK C-GND KIL REG PULL SLD 5V VX01 320FH DET VCO TIMMING OUT OUT AUTO-BIAS DRIVER KIL P R BEFORE REC BGA CLAMP APC CCD KIL P IN PB REC AFTER APC AFC BGA R PB KIL AMP B.D. P R VCA C.SYNC 0
P R

NC

X4001

VSS VSS 47 48 49 50

0 1.9 0 2.7 2.5 1.9

2.6 BUFFER Q4009 2SA1015Y R4060 C4058 C4059 25V 4.7 KA C4061 50V 1 KA R4063 C4052 0.1 F C4053 0.01 B R4057 C4062 1.8K 50V 1 KA FRONT_V_IN CTLCTL+ DOC_XO_CTL R4078_1 1 100 1/4W OSD_V INPUT_SEL H.AMP_SW COMP ENV.DET C.SYNC H.SW 3.3M TUNER_V 220K R4062 220K 1/4W

82

83

0

FROM/TO SYSCON/SERVO 4FSC DUMMY_V.SYNC C.SYNC SP/LP/EP-H TRICK_PB-H/EE-H V.REC_ST-H C.ROTARY AUDIO_MUTE-H REC/EE/PB OSD_V

5

86

45

3.0 6.3V 22 KA 3.2 2.8 2.8 4.9 2.8 3.5 C4060 50V 1 KA

87

88

90

H NOMAL HA TEST CH1 L H.AMP SW

R

Y-LPF
P R

NC1
PB-Y

91

REC AGC FILT ENV DET COMP OUT A.GND MUTE
ALC-LEVEL

92

93

94

4

R LINE AMP

P

DELAY PB FM-EQ PB PHASE-EQ REC AMP CTL AMP 6 7 8 9 10

95

96

97

98

P VHS

TEST

33

0 5.1

100 99

H.A R/P AUDIO MUTE RF SW IN C ROT

HA SW IN Y/C R/P AUDIO R/P

R4013 10K C4010 6.3V 47 KA

P.CON+5V 6.3V 100 KA FROM/TO HEAD AUDIO CONTROL CP4002 IMSA-9604S-06Z13 6 5 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+) 0 AUDIO PB SW Q4001 2SC3331 0 AUDIO PB SW Q4002 2SC3331 0 0.7 R4002 10K 6 5 4 1 2 3 CTL+ CTLL4003 COIL,BIAS OSC T4001 1626007 560 V.REC_ST-H R4001 0 5.3 470P CH 5.2 SW Q4003 DTA124EKA C4071

1 C4074 R4011 22K BIAS CTL Q4005 2SA1318 0 5.2 5.2 50V 1 KA

2

3

4

5

11 0

12

13

14

15

16 0

17 0 4.9

18

19

Y-Vcc 20 21 22

23

24

25

Y-GND 26 27 28 50V 1 KA

29

30

2.4 2.4 2.4 2.4

0 2.4 2.4 1.5 0.0022 B

C4017

390P CH C4043

C4034

50V 1 KA

C4025

R4034

10K C4027 820P CH R4022 6.8K R4068 47K

C4041

R4020

R4047

820

18K

3

R4051

33K

5.0 5.0 NC

0 0.8 0.8 0.8

0 1.6 5.0 1.0 0.2 2.0 3.4 2.8

0 2.1 1.0 4.8

31

2.4

EQ AMP

32

PB/EE

REC: EP/LP PB:EP

Vref PB /EE

SQPB

R

34

25V 4.7 KA 0.3

AUTO BIAS

CLAMP

Chara INS.

6DB

35

DOUBLE LIM

NL EMPHA

FBC

R VIDEO OUT

36

S-EQ FM-EQ

1/2

37

REC FM-EQ

NOMAL FM

MOD

FM DEM

DETAIL ENH

R

P R P

R-EQ WC TEST DC

SYNC SEP

AGC TC2 V-AGC

38

FM AGC

P

R

AFC
1 2 3

39

Sub CONV

3.58M BPF2

SUB LPF

V/I CONV

Y/C PB-C MIX

40

BALANCER

41

REC SP OUT

AGC + AMP

P

R

89

4.21M BPF

Main CONV

B-UP AMP

ACC AMP

P

SYNC DET

42

YNR/COMB

N.L. DEEN

VCP

43

GCA

ACC BGA DET

3.58M BPF1

CLAMP

44

L

C-LPF

2.5 NC C4057 6.3V 22 KA 1.5 1.0 R4055 100K

4

3.0 C4054 0.01 B 4.3 4.4 NC 0 4.6

C4056 0.1 F DUMMY_V.SYNC

3

L4007 C4047 6.3V 100 KA 100uH 18P CH R4049 C4038 F R4048 0.1 1.5K C4049 4.7K

100uH

R4032 27K

47K

R4067

R4025 C4024 330K 25V 4.7 KA

R4069

47K

R4070

0.01 B

R4010

C4005

3.3K

C4022

6.3V 47 KA C4006

V.REC_ST-H

H.AMP_SW

C.ROTARY

R4015

2.2

1

FE HEAD(HOT)

REC/EE/PB

P.CON+5V

R4027

2

FE HEAD(GND)

TRICK_PB-H/EE-H

100V 0.022 TF

0.015 B

AUDIO_MUTE-H

C4002

C4004

CP4003 TMC-T02X-E1

DOC_XO_CTL

BIAS OSC Q4006 2SD734

H.SW

L4005

0

47uH 0305

0

180 1/4W 16V 10 KA

2

TO FULL ERASE HEAD

0

10K

0

C4018

5

0.0012 B

0.7 R4003

C4020 0.01 B

W821

1K

200P CH

R4023

8.2K

C4035

2

1

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK

CAUTION: DIGITAL TRANSISTOR

RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB) PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL TUNER VIDEO SIGNAL
F G

PCB010 VMX181

1

A

B

C

D

E

H

G-1

G-2

A

B

C

D

E

F

G

H

SYSTEM CONTROL/SERVO SCHEMATIC DIAGRAM
AFT-S.CURVE FROM/TO POWER R1008 POWER_FAIL MODEVCC POWER_ON-H AT+5V[M-CON] R1010 33K 1/4W 10K POWER_FAIL-AC VIDEO_OUT IIC_DATA

(SYSCON PCB)

FROM/TO TUNER

8

8
IIC_CLK TV/VCR

7

P.CON+5V AUDIO_MUTE-H AT+5V POWER_ON-H SENS_LED CYL_DRIVE LDM.F GND GND GND F/R (S/S) (CAP) (LDM) LOADING MOTOR DRIVER IC IC1002 BA6955AN CONTROL LOGIC STD POWER SAVE 11.9 1 0 2 LDM.F 0 3 0 4 LDM.R 0 5 0 6 0 7 11.9 LM+ 8 11 CAP_LIMIT LDM.R AT+12.6_V V.REC_ST-H C.SYNC

7
4FSC

D1008 C1019

R1051

82P CH

1SS133

10K

C1006

0.1

6

R1030_1 1M

10 R1039 C1014 33P CH C1016 27P CH 1M

RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL

B

C1033

15P CH C1007

15P CH

0.022

C1036

B

6

LM-

X1001 R1011 10MHz 22K

W827

R1004 47K FROM/TO DECK REM_IN SP/LP/EP-H TV/VCR BOT LMLM+ SID1050CM 1N4005E REEL-T R1007 82K 1/4W REEL-S POWER_FAIL-AC 14 D1004 TRICK_PB-H/EE-H 0 NC 5.0 0 5.0 5.0 0 NC 5.0 5.0 4.2 0 NC 4.9 5.0 5.0 NC 0.3 3.0 5.0 NC 0.7 0.1 5.0 0 R1019 3.3K 3.3K

NC NC NC 5.0 3.8 3.8 3.8 0 80 79 78 77 76 POWER ON H SUB-RESET(TV/VCR LED) 81 T-REC LED SENS LED REC LED

15uH C1017 0.1 F 0

R1015

D1002

1N4005E

R1025 R1040 1M NC NC NC NC NC NC NC 820 0 0 2.4 2.3 0 5.0 5.0 5.0 0 5.0 3.2 4.3 3.2 2.4 3.4 0 5.0 0 5.0 5.0 5.0 5.0 5.0 0 0 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 CTL_MONITER LDM FWD-H LDM REV-H CAP FWD A.MUTE VSS C.SYNC GND X1 CYL SPEED UP D OSC OUT OSC 2 OSC 1 EE-H 4 FSC OUT CAP LIMIT V.REC ST-H P.OFF-L TEST 4 FSC IN 50 3.3

L1001

18 1/4W R1053

15K 1/4W

FROM/TO Y/C/AUDIO/CCD/HEAD AMP 4FSC C1027 DUMMY_V.SYNC C.SYNC SP/LP/EP-H TRICK_PB-H/EE-H V.REC_ST-H VIDEO_OUT C.ROTARY AUDIO_MUTE-H REC/EE/PB OSD_V 25V 4.7 KA 0.0047 B C1031 B C1030 0.022 CTL7 R1055 CTL+ CAP_FG CYL_PG CYL_FG DOC_XO_CTL INPUT_SEL H.AMP_SW COMP ENV.DET H.SW

82

49

5

CP1003 (CP101) IMSA-9604S-04Z14 1 2 3 4 VCC BOT LDMLDM+

83

48

2.8 2.7 3.3 3.5 1.3 3.5 5.2 5.2 5.0 4.5 4.5 2.6 2.6 2.6 2.6 0 2.6 2.6

C1025 120P CH R1043 2.7K R1044 4.7K

R1049 820

25V 4.7 KA C1023 0.1 B

5

84

AFC LPF 81 POWER ON L 82 REM IN 83 SP/LP/EP-H 84 VCR-H(TV/VCR) 50 D OSC IN 49 VSS(OS) 48 AFC OSC CHR BIAS CV OUT V.REF CV IN Vcc(OSD) TIMER SYSCON SERVO CONTROLLER IC IC1001 OEC0089A VCC(SV) CFG DPG 99 IIC DATA 100 DOC_XO_CTL 32 CTL-H(-) 31 CTL-H(+) DFG CTL AMP CTL BIAS CTL AMP(-) VDD (60K=TEST) DUMMY V.SYNC CTL GAIN SW VSS(SV) H.AMP SW C.ROTARY COMP

85

TRICK PB-H JUST CLOCK REEL-T REEL-S POWER FAIL-H VIDEO MUTE-H SERVICE TAB SW

86

87

44

45

46

47

88

D1001

43

C1022 6.3V 22 KA R1050 C1018 470K 6.3V 47 KA

C1029

89

TMPG06-12A

90

SW1001 SPVF130100

D1003

91

92

4

39

47K 1/4W

40

R1013

3

4

41

42

R1054 C1015 220P CH 9 R1042 220 C1020 6.3V 47 KA R1048 R1045 47K R1041 560 1/4W R1046 C1021 270K C1026 6.3V 22 KA VIDEO H.SW TP1002 NC 6 R1052 1K 1K 1/4W 8

1K

2

1

R1012 270 CENT SW 0.1 Q1007 DTC124EKA CENT_LED 4.9 0 FL_CS FL_S_CLK

4

93

AUDIO OUT MUTE L FL_CS FL_S_CLK TUNER_L FL_SD_OUT

94

95

96

35

36

37

38

R1003 120 1/4W 12 REEL SENSOR Q1002 SG-260 2.4 1.2 1 R1009 1.2 REEL SENSOR Q1001 SG-260 2 1 0 2 47K

97

REEL-T

34

FL_SD_OUT IIC_CLK IIC_DATA DOC_XO_CTL

FROM/TO OPERATION REM_IN FL_CS FL_SD_OUT FL_S_CLK KEY-B KEY-A

98

AFT S.CURVE

REC/EE/PB

3CH/4CH

DRUM PWM

FS/IIC CLK MS SEN-B MS SEN-A HIFI ENV ST SEL BOT-H KEY-B A VSS KEY-A

INPUT SEL

Hi Fi H.SW

CENT LED

ENV DET

CAP PWM

CAP FULL

100 99

EOT-H

RESET

A VDD

GND

H.SW

13 R1017 REEL-S 47K R1005 4 4.9 3

PG

31

32

33

560 1/4W 0.001 B R1047 6.8K CTL+ CTL-

1 0 W807 REC/EE/PB

2 0 5.1

3

4

5

6

7

8

9

56K

AFT-S.CURVE

INPUT_SEL

ENV.DET

KEY-B

KEY-A

R1033

NC 5.2 FROM/TO MICRO MOTOR CP1001 IMSA-9604S-07Z14 7 6 5 4 3 2 1 CYL DRIVE CYL GND CYL FG CYL +B CYL PG GND CYL VCC 5V R1018 CYL_PG CYL_FG EOT SENSOR Q1006 PNA2604M010R

H.SW

R1035

EOT

IIC_DATA

CENT_LED

2.2K

W832

W808

CYL_DRIVE R1038 10K CONTROL_IN

BOT

0

5.6K B

IIC_CLK

R1006

R1036

COMP

SERVICE TP1001

H.AMP_SW

C.ROTARY

0

4.9

0

56K

4

3

DUMMY_V.SYNC

3

0 5.0 5.0 5.0 5.0 5.0

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 0 0 0 0 0.1 4.3 0 4.7 5.0 5.0 0 0 2.6 5.0 5.0 0 5.0 5.0 5.0 4.8 NC NC

3

NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK

EOT MODEVCC CYL_DRIVE

10K

10K

C1011 0.18

C1009

C1010

B

F

B

2

CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY

C1008

R1026

R1027

0.01

0.022

0.1

ARE

2

R1037

FROM/TO CAPSTAN DD UNIT CP1002 TMC-J08P-B1 1 2 3 GND MOTOR_GND I LIMIT CTL VCO(12V) FG CAP/M/F/R VCC(5V) CAP_FG F/R CAP_LIMIT CONTROL_IN C1001 16V 10 KA C1035 0.0039 X

SENS_LED

5.6 1.4 1.4 2 3 5.0

5.6K

SW Q1003 2SC1815Y 1.2

R1034

SYSTEM RESET IC IC1003 RE5VS31A MS_SEN A Q1005 RPI-352Q01R 0.6 2 3 IN GND 2 0 5.0 OUT 3 1 1.3 5.0 5.0

C1024 6.3V 220 YK 0.1 F 5.0 8 VCC

ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE CAUTION: DIGITAL TRANSISTOR
PCB010 VMX181

1K 1/4W

4.7K

5.0 5 DA

5.0 6 CL

0 7 TEST

C1013

R1014

A2

A1

100 1/4W R1023

5 6 7 8

6.3V 33 KA

R1021

R1024

C1012

33K

33K

MS_SEN B Q1004 RPI-352Q01R

4 0 0

3 0

2 0

A

B

C

D

E

F

A0

4

180K

1

VSS

0.4

D1009

0.6

1.6

1SS133

1

4

1

4

EEP ROM IC S-24C01BDP IC1099

1

1

G

H

G-3

G-4

A

B

C

D

E

F

G

H

TUNER SCHEMATIC DIAGRAM
8

(SYSCON PCB)

8

RF-SW SW6001 SSAB110100 CH4
4 5

CH3 3 2 1 NC REAR OUT JACK J4201_1 JPJ9911-010430
E

TU6001 TMDH2-A05A 6.3V 47 KA

MONO FRONT JACK J4203_1 LPR1250-1600

7
68K C6008 R6005
25 26

7
MTZJ6.8B D4205 1 R6006 12K RF_CONV_A.OUT 2 E 3 V 1 2 E 3 4

A.IN CH MB

2 3 L6001 4 100uH 0305

H1 H2

H V

H A W819

A P.CON+5V TV/VCR VIDEO OUT TP4201 NC R4202 75 W811

FROM/TO Y/C/AUDIO/CCD/HEAD AMP C4212 FRONT_V_IN 16V 10 KA FRONT_A_IN-L

R4209 75

CONTROL 5 R6004 V.IN 6 1K 1/4W 22P CH RF AGC 8 NC NC C6001

6.3V 470 YK

C4201

6

TUNER_V TUNER_A W803 FROM_NORMAL_A FSC

6

NC 9 CE 10

R6009 CLOCK 11 R6008 DATA 12 1K 6.3V 220 YK 0.01 B BM 13 C6009 L6002 1K

IIC_CLK IIC_DATA P.CON+5V C4209 16V 10 KA AT_13V W824 R4201 560 1/2W R6010 270 1/4W L6003 15uH C6014 0.001 B R4204 2.2K +32V FSC R4206 390 W816 RF_CONV_A.OUT

5

C6010

22uH

0305

PB 5V 14 FSC 15

5

TU 32V 16 IF TP IF OUT 17 18

W813

TUNER_A

BUFFER Q4201 2SA1015Y

3.3

2.6

R4210 100

C4202

0.01 B

VIDEO_OUT

0

4
A.OUT 21 SIF OUT 22 AFT 23 W829 V.OUT 24
27 28

4

NC AFT-S.CURVE C6003 16V 10 KA 0.033 B C6013 C6002 0.1 F TUNER_V

3

3

AFT-S.CURVE

VIDEO_OUT

P.CON+5V

AT_13V

+32V

IIC_DATA

IIC_CLK

TV/VCR

2

FROM/TO SYSCON/SERVO

FROM POWER

(TUNER) GND

2

1

NOTE: THE DC VOLTAGE AT EACH PART WAS
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

CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY

ARE

ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES

RECORD LUMINANCE SIGNAL RECORD COLOR SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB) TUNER VIDEO SIGNAL PLAYBACK LUMINANCE SIGNAL PLAYBACK COLOR SIGNAL
G

PCB010 VMX181

1

A

B

C

D

E

F

H

G-5

G-6

A

B

C

D

E

F

G

H

POWER SCHEMATIC DIAGRAM
8

(SYSCON PCB)

8

7
R529 330 1/4W

TO TUNER (TUNER) GND +32V AT_13V

7

MTZJ33B

D524

P.CON+5V

33K 1/2W

500V 0.01 E

D515 1SS244 TO Y/C/AUDIO/CCD/HEAD AMP P.CON+5V 50V 10 KA C518

6
AC120V_60Hz CD501 0R614902 BLADE WIDE CP501 THL-P03P-B1 2 2 WHITE 1 1 BLACK FH501 EYF-52BC FH502 F501 EYF-52BC 1.6A250V C504 250V 0.1 ECQUL L501 0R3A433F20 1 3 2 4 D505

R512

C512

6

500V 100P B

D511

1N4005E D508 1N4005E 200V 82 WA 330K 1/2W D523 C508 1N4005E

RGP10JE

C509

GND D504 L505 16V 220 YK 1N4005E FROM/TO SYSCON/SERVO AT+12.6_V

C502 BL01RN1-A63 500V 0.0027 B B501 T501 8122004 13 BL02RN1-R62 D512 21DQ04N 10V 1000 YK D514 16V 470 YK UG2D C519 R534 B502

22uH C522

D528 1N4005E 3.3M 1/2W 120K 1/2W

5
R502 1.6A 250V

L504 10V 470 YK 22uH C520

D519 P.CON+5V 21DQ04N (S/S) (CAP) (LDM) GND GND GND

5

150 0.1 C510 0.1 0.4 0 D507 1 1W R514 CONTROL Q502 2SD734 0.018 68 1W B

C505 250V 0.0033 RS

D503 1SS244

8

R508

R501 27 1/4W

10V 100 KA

50V 10 YK

MTZJ27D

0

NC

3

10

C523

C514

SWITCHING Q503 2SC4160-OEC-YAC1

1

R527

15 2

11

12

4

D517

C503

9

R511

MODEVCC D1006 AT+5V[M-CON] 1SS133 D1005 AT+5V 1N4005E 5.7 5.6 P.CON+5V SW Q501 2SB926 4.8 R507 1K R509 390 0.03 0 POWER_ON-H POWER_FAIL

5

4

6

7

330 1/4W

1SS133 C507 0.0047 B R504 22K 1/4W

4

D502 D510 C506 1SS133 C511 0.012 B R513 1.2K 1/4W 10V 100 YK 10ELS2N

5.0

TO OPERATION

R506 4 1 -0.4 0.4 5.2 4.1 1K R510 R518 390 +-1%

P.ON SW Q504 DTC143EKA

AT+5V

C501

R505 B 1.8K 1/4W

4.3K

3

2

3

0.0082

GND

C515 0.0082 B VOLTAGE CTL IC KIA431 IC501

3
-30V

R516

PHOTO COUPLER Q511 TLP621(D4-GR-LF2)

+-1%

3.3K

HEATER_DC+ HEATER_DC-

OUT 1 4.1

GND 3 0

IN 2 2.5

2

1

4

74.0

3

2

D506 1SS133

74.0

2.4 5.7 PHOTO COUPLER Q510 TLP621(D4-GR-LF2)

2

1.6A 250V

CAUTION: DIGITAL TRANSISTOR NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK

PCB010 VMX181

1

CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 1.6A 250V (F501). ATTENTION: POUR UNEPROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 1.6A 250V (F501).

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES

CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY

ARE

1

A

B

C

D

E

F

G

H

G-7

G-8

A

B

C

D

E

F

G

H

OPERATION SCHEMATIC DIAGRAM
8
V651 7-MT-201GA 7G 6G 5G 4G 3G 2