Goodmans GTV371VCR Page 37 Service Manual Download

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CHASSIS REPLACEMENT PARTS LIST

J2-1

REF. NO.

PART NO.

DESCRIPTION REF.

NO.

PART NO.

DESCRIPTION

301

85OA500022 AHC ASS'Y

501

8107126AO4

SCREW,TAP TITE(S) PAN

2.6x10

302

85OP200270 BELT,CAPSTAN

502

8107226804 SCREW,TAP TITE(S) BIND

2.6x8

303

85OP900689 LEVER,REC

503

8107226604 SCREW,TAP TITE(S) BIND

2.6x6

304

85OP500083 BASE,AC HEAD

504

8109126604 SCREW,TAP TITE(B) PAN

2.6x6

305

85OP800324 SPRING,AC HEAD

505

810A126804

SCREW/WASHER(A)

M2.6x8

306

85OA000297 MAIN CHASSIS ASS'Y

506

8108126404 SCREW/WASHER(B)

M2.6x4

307

85OA200072 CLUTCH ASS'Y

507

8102120604

SCREW,PAN

M2x6

308

85OA200073 ARM, IDLER ASS'Y

508

8102120304 SCREW,PAN

M2x3

309

85OP600553 ARM,S-S BRAKE

509

8102130304 SCREW,PAN

M3.0x3.0

310

85OA200076 T REEL ASS'Y

510

82Q3154C5N POLYSLIDER

WASHER

3.1x5.4xT0.25

311

85OA300061 LOADING ARM S ASS'Y

511

82P266005N POLYSLIDER

WASHER(CUT) 2.6x6.0xT0.5

312

85OA300062 LOADING ARM T ASS'Y

512 82Q264713N

POLYSLIDER WASHER .

2.6x4.7xT0.13

313

85OA400102 GUIDE ROLLER ASS'Y

513

82P184505N POLYSLIDER WASHER(CUT)

1.8x4.5xT0.5

314

85OA400171 BASEJNCL S ASS'Y

514

83ETW30000 E-RING

3.0

315

85OA400172 BASEJNCL T ASS'Y

515

810A123504

SEMS A

M2.3x5.0

316

85OA400185 P5-2 ARM ASS'Y

516

82A2675051

WASHER

2.6x7.5xT0.5

317

85OA400174 PINCH ROLLER BLOCK

318

85OA400175 TENSION ARM ASS'Y

CP101

069R740018 CONNECTOR PCB SIDE

52044-0445

319

85OA400176 TENSION BAND ASS'Y

CP102

0694220139 CONNECTOR PCB SIDE

173979-2

H5001

1523D91034 HEAD (AUDIO CONTROL)

HVMXA1072A

320

85OA400178 PINCH ROLLER LEVER ASS'Y

H5002

1543D02013

HEAD (FULL ERASE)

HVFHP0032A

321

85OA600182 BRAKE T ASS'Y

! M101

1596P78001

MOTOR (LOADING)

MXN13FB11 H

322

85OA600183 CAP BRAKE ARM ASS'Y

! M2001

1594J98007

CAPSTAN DD UNIT

EP15BB

323

85OA900213 LINK ASS'Y

M2003

1589V11007

MICRO MOTOR

EP14BD

324

85OA900216 LINK LEVER ASS'Y

PCB550

A4C70113550 DECK PCB ASS'Y

VE8851

325

85OP200261

LEVER,CLUTCH

Q101

0000700320 TRANS ISTOR,PHOTO

RPT-38PB113

326

85OP200262 RING,CLUTCH

Q102

0000700320 TRANS ISTOR,PHOTO

RPT-38PB113

327

85OP200263 GEAR,CLUTCH

! UN4001

A54508M500 CYLINDER UNIT ASS'Y

A54508M500

328

85OP200271

REELS

329

85OP200273 STOPPER,REEL S

330

85OP200274 SPACER,LINK LEVER

331

85OP300178 GEAR,MAIN LOADING

332

85OP300179 GEAR,LOADING S

333

85OP300180 GEAR,LOADING T

334

85OP300185 HOLDER,LOADING GEAR

335

85OP400472 ADJUSTTENSION

336

85OP400492 HOLDER,TENSION

337

85OP400474 LEVER,TENSION

338

85OP400475 COVER,P4

339

85OP600543 GEAR,JOINT

340

85OP600544 GEAR,MIDDLE

341

85OP600545 CAM,MAIN

342 85OP600546

CAM,P5

343

85OP600547 CAM,PINCH ROLLER

344

85OP600548 ROD,MAIN

345

85OP700035 REFLECTOR,LED

346

85OP800318 SPRING,LOADING GEAR

347

85OP800319 SPRING,P5

348

85OP800321 SPRING,BRAKE

349

85OP800322 SPRING,TENSION

350

85OP800323 SPRING,CAP BRAKE

351

85OP800325 SPRING,LOCKER

352

85OP800326 SPRING,LINK

353

85OP800328 SPRING,DAMPER

354

85OP800330 SPRING,RING

355

85OP800332 SPRINGS-S BRAKE

356

85OP900680 OPENER,CASS

357

85OP900683 CASS SIDE L

358

85OP900684 CASS SIDE R

359

85OP900702 TAPE GUIDE L(P,R)

360

85OP900686 TAPE GUIDE R

361

85OP900687 COVER,SENSOR L

362

85OP900688 LEVER,FLAP

363

85OP900690 CASS HOLDER

364

85OP900691 LOCKER,L

365

85OP900692 LOCKER,R

366

85OP900694 SPRING,PACK

367

85OP900695 BRACKET,TOP

368

85OP900696 SPRING,CASS EARTH

369

85OP600540 DRIVER,WORM

370

85OP400485 O-RING

371

85OP600541 WORM

372

85OP600542 BRACKETMOTOR

Summary of Contents for GTV371VCR

Page 1: ...N CRT OPERATION DECK SYSCON SCHEMATIC DIAGRAMS Y C AUDIO HEAD AMP MICON POWER 21PIN IN OUT CHROMA IF SOUND AMP T TEXT TV POWER DEFLECTION CRT OPERATION DECK INTERCONNECTION DIAGRAM WAVEFORMS MECHANICAL EXPLODED VIEWS CHASSIS EXPLODED VIEWS MECHANICAL REPLACEMENT PARTS LIST CHASSIS REPLACEMENT PARTS LIST ELECTRICAL REPLACEMENT PARTS LIST A1 1 A1 1 A2 1 A3 1 A3 6 B1 1 B1 2 B2 1 B2 5 B3 1 B3 2 C1 1 C...

Page 2: ...net Back Cabinet 4 3 1 1 1 2 1 3 2 1 2 CRT PCB Refer to Fig 1 2 1 2 3 Remove the Anode Cap Refer to REMOVAL OF ANODE CAP Disconnect the following connectors CP801 and CP850 Remove the CRT PCB in the direction of arrow 1 3 TV VCR BLOCK Refer to Fig 1 3 1 2 3 4 Remove the 2 screws 1 Disconnect the following connectors CP351 CP757 CP302 CP403 and CP401 Unlock the support 2 Remove the TV VCR Block in ...

Page 3: ...YSCON PCB Refer to Fig 1 7 1 2 3 4 5 Remove the screw 1 Remove the Syscon PCB in the direction of arrow A Remove the 2 screws 2 Unlock the 2 supports 3 Remove the Jack Plate in the direction of arrow B Deck Holder Syscon PCB 1 A Jack Plate 2 2 3 3 B Fig 1 7 Syscon PCB 1 1 3 Deck Shield Plate VCR Block B A 2 2 2 Fig 1 5 1 6 DECK CHASSIS Refer to Fig 1 6 Remove the 3 screws 1 Disconnect the followin...

Page 4: ... 3 B 2 4 CASSETTE HOLDER ASS Y Refer to Fig 2 4 Move the Cassette Holder Ass y to the front side Push the Locker R to remove the Cassette Side R Remove the Cassette Side L 1 2 3 Main Chassis Main Chassis Cassette Side L Cassette Side R Locker R Fig 2 4 2 5 CASSETTE SIDE L R Refer to Fig 2 5 Remove the Locker Spring Unlock the 4 supports 1 and then remove the Cassette Side L R 1 2 NOTE When you ins...

Page 5: ... Tension Adjust Unlock the 2 supports 3 and remove the Tension Band Ass y Unlock the support 4 and remove the Tension Holder 1 2 3 4 5 6 7 Tension Holder 4 2 Tension Adjust Tension Band Ass y Tension Arm Ass y 1 Tension Spring 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 Adjust the direction of the Marker to inside Fig 2 9 B 2...

Page 6: ... C HEAD Refer to Fig 2 13 A Remove the screw 1 Remove the A C Head Base Remove the 3 screws 2 Remove the A C Head and A C Head Spring 1 2 3 4 NOTE Do not touch the A C Head Use gloves When you install the A C Head Spring install as shown in Fig 2 13 B Refer to Fig 2 13 B When you install the A C Head tighten the screw 1 first then tighten the screw 2 finally tighten the screw 3 1 2 3 A C Head 2 2 ...

Page 7: ...UNIT ASS Y Refer to Fig 2 15 Unlock the support 1 and remove the AHC Ass y Remove the 3 screws 2 Remove the Cylinder Unit Ass y 1 2 3 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 NOTE 2 3 2 1 2 2 Cylinder Unit Ass y 1 AHC Ass y Screw Torque 5 0 5kgf cm Fig 2 15 2 16 CAPSTAN DD UNIT Refer to Fig 2 16 Remove ...

Page 8: ...ever Loading Arm T Ass y Loading Gear S LED Reflector Fig 2 19 A NOTE 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 Loading Arm T Ass y Main Loading Gear Marker Marker Loading Arm S Ass y Fig 2 19 B Loading Arm S Ass y Loading Gear Spring Loading Gear Spring 2 20 INCLINED S T ASS Y Refer to Fig 2 20 Unlock the support 1 and...

Page 9: ...of the Anode with the tip of the Screwdriver A cracking noise will be heard as the voltage is discharged DISASSEMBLY INSTRUCTIONS 3 After one side is removed pull in the opposite direction to remove the other NOTE Take care not to damage the Rubber Cap INSTALLATION 1 Clean the spot where the cap was located with a small amount of alcohol Refer to Fig 3 3 NOTE Confirm that there is no dirt dust etc...

Page 10: ...DEFLECTION YOKE Refer to Fig 4 1 1 2 3 4 5 Loosen the screw 1 Remove the Convergence Purity Magnet in the direction of arrow A Loosen the screw 2 Remove the 3 Wedges Remove the Deflection Yoke in the direction of arrow B Wedge Wedge Deflection Yoke Convergence Purity Magnet 2 1 A B Fig 4 1 INSTALLATION Install new Deflection Yoke in reverse steps of REMOVAL NOTE After adjusting the purity and the ...

Page 11: ...lop Frequency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I K L M N O P R S 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 ...

Page 12: ...tor Separation Transistor Tracking Trick Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse Voltage Display Video Playback Variable Resistor Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source Vertical Synchronization Voltage Tuning Crystal Luminance Chrominance C1 2 ...

Page 13: ...tion NOTE Also can be adjusted by pressing the ATR button for more than 2 seconds during PLAY VOL MIN 5 POWER ON total hours and PLAY REC total hours are displayed on the screen 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 VOL MIN 6 VOL MIN 1 Initialization of the fa...

Page 14: ...ubber and parts which the rubber touches Replace when rolling becomes abnormal Clean the Head CONFIRMATION OF USING HOURS POWER ON total hours and PLAY REC total hours can be checked on the screen Total hours are displayed in 16 system of notation NOTE The confirmation of using hours will not be possible if clock has been set To reset clock either unplug AC cord and allow at least 30 minutes befor...

Page 15: ...izontally Clean the full erase head in the same manner Refer to the figure below Audio Control Head 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 t...

Page 16: ...AC cord and allow at least 30 minutes before Power On or alternatively discharge backup capacitor No need the setting for after INI 3F 3 4 5 6 7 8 The unit will now have the correct DATA for the new MEMORY IC 1 2 Fig 1 ADDRESS is now selected and should blink Using the SET or keys on the remote step through the ADDRESS until required ADDRESS to be changed is reached Press ENTER to select DATA When...

Page 17: ...entelometer JG162C Cable 10 Pins JG162D Cable 11 Pins JG162Y Cable 5 Pins JG154 Cable JG001V X Value Adjustment For 2 head 2 speed model JG002B JG002E JG002F JG005 VSR Torque Brake Torque S Reel T Reel Ass y Brake Torque T Reel Ass y VSR Torque Brake Torque S Reel Used to connect the Syscon PCB and CRT PCB Used to connect the Syscon PCB and Main PCB JG162Y JG162C JG162D JG154 JG100A JG022 JG024A R...

Page 18: ...nect the Syscon PCB to the CRT PCB with the cable JG162Y Remove the Operation PCB from the set then connect it with the Syscon PCB If necessary connect CP351 Front A V Jack Input Terminal 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 inse...

Page 19: ...ayback in SP mode Tentelometer Video Tape Guide Roller P1 Post Fig 1 3 D1 1 CONFIRMATION AND ADJUSTMENT OF REEL DISK HEIGHT 1 1 1 2 3 4 Turn on the power and set to the STOP mode Set the master plane JG022 and reel disk height adjustment jig JG024A on the mechanism framework taking care not to scratch the drum as shown in Fig 1 1 A Confirm that A of the reel disk is lower than B of the reel disk h...

Page 20: ...Spring 2 CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM Tape Running Mechanism is adjusted precisely at the factory Adjustment is not necessary as usual When you replace the parts of the tape running mechanism because of long term usage or failure the confirmation and adjustment are necessary 2 1 GUIDE ROLLER Playback the VHS Alignment Tape JG001C or JG001E Refer to SERVICING FIXTURE AND TO...

Page 21: ...just the Guide Roller Refer to item 2 1 Confirm and adjust the Audio Control Head Refer to item 2 2 Connect CH 1 of the oscilloscope to TP4002 CH 2 to TP4001 and CH 3 to HOT side of Audio Out Jack Playback the VHS Alignment Tape JG001U or JG001V Refer to SERVICING FIXTURE AND TOOLS Press and hold the TRACKING AUTO button on the remote control more than 2 seconds to set tracking to center Set the X...

Page 22: ...ARTS LOCATION GUIDE 1 2 3 4 5 6 7 8 9 11 10 12 7 8 9 10 11 12 P4 Post T Brake Spring T Reel Ass y Idler Ass y S S Brake Spring S Reel 1 Tension Adjust 2 Tension Arm 3 Guide Roller 4 P1 Post 5 Audio Control Head 6 X value adjustment driver hole D1 4 ...

Page 23: ...3 4 Connect CH 1 on the oscilloscope to TP4001 and CH 2 to TP4501 Playback the alignment tape JG001C Press and hold the Tracking Auto button on the remote control more than 2 seconds to set tracking to center Press the VOL DOWN button on the set and the channel button 3 on the remote control simultaneously until the indicator REC disappears If the indicator REC disappears adjustment is completed I...

Page 24: ...tment 7 and 8 until the white color is looked like a white Fig 2 3 1 AKB AUTO 2 R BIAS 3 G BIAS 4 B BIAS 5 R DRIVE 6 G DRIVE 7 B DRIVE 8 AGC AUTO 0 RETURN 2 9 SUB BRIGHTNESS 1 2 3 4 5 6 7 Receive the monoscope pattern RF Input Using the remote control set the brightness and contrast to normal position Activate the adjustment mode display of Fig 1 1 and press the channel button 4 on the remote cont...

Page 25: ...L UP DOWN button on the remote control until the horizontal over scan is equal to the vertical over scan 2 13 VERTICAL LINEARITY 1 2 3 4 5 Receive the monoscope pattern Using the remote control set the brightness and contrast to normal position Activate the adjustment mode display of Fig 1 1 and press the channel button 1 on the remote control The Fig 2 6 appears on the display Press the channel b...

Page 26: ...ELECTRICAL ADJUSTMENTS 3 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE VCR SECTION SYSCON PCB L608 CP603 TP1001 TP4002 TP4001 TP4501 IC601 TU601 J4501 D2 4 ...

Page 27: ... TV SECTION ELECTRICAL ADJUSTMENTS CRT PCB MAIN PCB FOCUS VOLUME SCREEN VOLUME D2 5 ...

Page 28: ...orming adjustments in section 4 1 1 2 3 4 5 Receive the green raster pattern from color bar generator Adjust the pair of purity magnets to center the color on the screen Adjust the pair of purity magnets so the color at the ends are equally wide Move the deflection yoke backward to neck side slowly and stop it at the position when the whole screen is green Confirm red and blue color Adjust the sla...

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Page 36: ...T4 214 8107226604 SCREW TAP TITE S BIND 2 6x6 115 COATING CLIP 215 8117540A64 SCREWTAPPING B0 TRUSS 4x16 116 899EFB0692 COATING CLIP EFB0692 216 8117540B04 SCREWTAPPING B0 TRUSS 4x20 117 HEAT SINK 217 8117140A24 SCREWTAPPING B0 PAN 412 118 HEAT SINK 218 8107630604 SCREW TAP TITE S BRAZIER 3x6 119 HEAT SINK 219 8107230804 SCREW TAP TITE S BIND 3x8 120 HEAT SINK 220 8110630604 SCREW TAP TITE P BRAZI...

Page 37: ...E T ASS Y M101 1596P78001 MOTOR LOADING MXN13FB11 H 322 85OA600183 CAP BRAKE ARM ASS Y M2001 1594J98007 CAPSTAN DD UNIT EP15BB 323 85OA900213 LINK ASS Y M2003 1589V11007 MICRO MOTOR EP14BD 324 85OA900216 LINK LEVER ASS Y PCB550 A4C70113550 DECK PCB ASS Y VE8851 325 85OP200261 LEVER CLUTCH Q101 0000700320 TRANS ISTOR PHOTO RPT 38PB113 326 85OP200262 RING CLUTCH Q102 0000700320 TRANS ISTOR PHOTO RPT...

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