JVC KS-AX7300 Service Manual Download Page 14

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KS-AX7300

2-4

CROSSOVER(50-250Hz 12dB/OCT VARIABLE)

BOOST 0-12dB VARIABLE

HI-INPUT

R396

R395

R497

R397

R496

C323

HI301

R394

C324

C497

C496

C397

R430

C413

R330

C409

C309

R494

R336

R436

U303-A

R411

R338

U301-A

C321

C322

RCA03-A

R302

C303

C302

R301

C306

R304

C301

R303

R305

C304

R306

C405

R406

C404

R405

R403

C401

R404

R418

U303-B

R414

R413

U304-B

R415

U305-B

R417

C410

C411

R318

U306-A

R308

R416

C305

R440

R314

R313

U304-A

R408

C407

R409

R315

U305-A

C425 R410

C408

R412

R317

C310

C311

C307

R495

R309

U406-B

VR301B

C406

R401

C396

C402

C403

C325

C308

R310

R311

R312

R316

U302-A

R402

RCA03-B

U302-B

VR301A

R439

C317

R335

U301-B

VR304B

C315

R434

R337

R339

R340

R334

C416

VR304-A

C316

R438

R437

C415

U406-A

R435

C417

U306-B

56KF

22KF

56KF

100/16V

470/0.5W

100/16V

2.2/50V

22K

10/1

10/16V

22K

10/1

47P

470/0.5W

NJM2068LD

12K

330K

NJM2068LD

104P

KJB-582C

20.5KF

103P

4.7/50V

22KF

22P

470F

4.7/50V

22KF

56KF

22P

56KF

100P

56KF

22P

56KF

22KF

4.7/50V

470F

15K

NJM2068LD

10K

50KC

10K

NJM2068LD

10K

NJM2068LD

10K

473(M)

15K

NJM2068LD

15K

50KC

100P

680K

10K

50KC

10K

NJM2068LD

470P

10K

NJM2068LD

4.7/50V 15KF

10P

56KF

10K

473(M)

470P

22KF

NJM2068LD

20KB

22P

22KF

2.2/50V

4.7/50V

103P

4.7/50V

27P

15K

11KF

30KF

15K

50KC

NJM2068LD

20.5KF

NJM2068LD

20KB

5.6K

47P

NJM2068LD

20KB

224(M)

20K

5.6K

680K

183(M)

20KB

183(M)

330K

20K

224(M)

NJM2068LD

47P

NJM2068LD

REAR

R-IN

L-IN

FLAT

Amp section 2

www. xiaoyu163. com

QQ 376315150

TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Summary of Contents for KS-AX7300

Page 1: ...ENTS 1 Important Safety Precautions 1 2 2 Disassembly method 1 3 3 Adjustment 1 6 Area suffix J Northern America www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 2: ...me parts of the chassis Therefore pay attention to such burrs in the case of preforming repair of this system www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 3: ... are attached to the backs of the C screws so that they cannot be removed easily 3 Remove the 6 volume knobs on top of the control panel If it cannot be pulled out easily insert a scale or suitable lever between the base of the volume knob and the control panel so that the volume knob is raised a little above the surface and then remove it Be careful when inserting a lever etc not to scratch the s...

Page 4: ...nstalled to its original position during re assembly 7 To remove the wire ass y lift up the Main board a little Fig 5 Fig 6 Fig 7 Fig 8 Rear panel E Front panel E GND wire MAIN PCB F F MAIN PCB Wire ass y Side view www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 htt...

Page 5: ...d 5 Remove the 4 screws H retaining the CCFL board 6 Remove the CCFL board by sliding it a little towards the arrow mark Fig 9 Fig 10 Fig 11 Fig 12 CCFL cover G G G CCFL PCB Insulation sheet H CCFL PCB H This section is cought by the portion www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513...

Page 6: ...TE When measuring adjust and apply power with no signal or load on each board DC DC CONVERTER SECOND GENERATOR SWITCHING TEST SET FREQUENCY COUNTER Main board POWER SUPPLY 14 4V R760 Measuring Points Main board 55Vp p 2 5V TEST ITEM VOLTAGE TEST FREQUENCY CHECK 55Vp p 2 5V 24 350KHz 30Hz OSCILLOSCOPE VOLT DIV 10 TIME DIV 10mcec SPECIFICATION CONDITION www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 ...

Page 7: ...ww xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 8: ... 8543 Japan VICTOR COMPANY OF JAPAN LIMITED 200303WPC Printed in Japan KS AX7300 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ...merica Contents Block diagrams Standard schematic diagrams Printed circuit boards 2 1 2 2 2 8 11 CD ROM No SML200303 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 10: ... to such burrs in the case of preforming repair of this system Safety precaution www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 11: ... B U304 A U304 B VR302A VR302B U305 A U305 B SW301A SW301B LPF HPF OFF LPF HPF OFF Q301 311 Q401 411 REAR R OUT L OUT Q350 Q450 MUTE CONTROL Q316 Q416 Q319 Q320 PROTECT VR101B VR101A VR301A VR301B VR302C VR302D VR102C VR102D 7 6 2 2 1 1 6 7 POWER AMP 6 7 POWER AMP 2 2 1 1 7 6 Q790 V IN INVERTER LOAD CCFL board Q780 VR701 3 1 3 1 3 1 6 7 3 1 5 7 3 1 2 1 2 1 5 7 6 7 6 7 3 1 3 1 6 7 3 1 3 1 2 1 2 1 5...

Page 12: ...8LD 104P 104P KJB 582C 20 5KF 10 16V 10 16V 103P 4 7 50V 22KF MU 10K NJM2068LD 7 5 6 4 10K NJM2068LD 7 5 6 4 10K 22P 473 M 473 M 15K 8 3 2 1 NJM2068LD 56KF 1K 22K 15K 50KC 100P 680K 10K 50KC 22K 10K NJM2068LD 1 3 2 4 1K 470P 22P 1K 10K NJM2068LD 1 3 2 4 4 7 50V 15KF 22K 473P 10P 56KF 470F 22KF 56KF 10K 4 7 50V 473 M 473 M 10 16V 470P 1K 8 5 6 7 NJM2068LD 20KB 22P 22KF 4 7 50V 103P 4 7 50V 4 7 50V ...

Page 13: ...MUTE 5 6K 0 1 3W B688 D718 2068LD 7 4 4 7 0 5W 104 M 1 5K 13 7KF 100 16V 1KF 330 16V KTA1023Y KTC1027Y 220 47 47 KTC3198GR 4 3K C3200GR KTA1266GR 1K 4 3K 4 3K 1K 22 22 22K 22 22 1K 330 16V 2 4K M 2 4K 1K 22 22 100K 22 220P 330 16V 22 1K KTC3198GR KTC3198GR KTA1266GR KTA1266GR 1K 4 3K 22K 15K 22K 4 3K KTA1266GR C3200GR 4 3K 1N4148 KTC3198GR 47 47 220 KTC1027Y KTA1023Y 1K 100 16V 1KF 5 6K 13 7KF 1 5...

Page 14: ...KF 100 16V 470 0 5W 100 16V 2 2 50V 2 2 50V 2 2 50V 22K 10 1 10 16V 22K 10 10 1 47P 47P 470 0 5W 1K 1K NJM2068LD 1 3 2 4 12K 330K 8 3 2 1 NJM2068LD 104P 104P KJB 582C 20 5KF 103P 4 7 50V 22KF 22P 470F 4 7 50V 22KF 56KF 22P 56KF 100P 56KF 22P 56KF 22KF 4 7 50V 470F 15K NJM2068LD 7 5 6 4 10K 50KC 10K NJM2068LD 7 5 6 4 10K NJM2068LD 7 5 6 4 10K 473 M 473 M 15K 8 3 2 1 NJM2068LD 1K 15K 50KC 100P 680K ...

Page 15: ... 22K 22K 10 16V 10 16V 10 16V 22K 22K 22K 10 16V 10 16V 10 16V 33P 0 1 3W 0 1 3W 220P 220P JSS2319 1K 100P 473 M NJM2068LD 7 4 56K 473 M 100K KTC3200GR 22K KTD 9214 104P 100P 473 M KTC3200GR 330 16V JSS2319 104P 220P D 1 4 KTC3198GR KTC3198GR KTA1266GR KTA1266GR 33P 1N4148 473 M 56K 15K 104 M 4 7 0 5W 1 5K 13 7KF 1KF 100 16V 1K KTA1023Y KTC1027Y 220 47 47 KTC3198GR 1N4148 4 3K C3200GR KTA1266GR 4 ...

Page 16: ...1N4148 100 100 KTA1266GR 1N4148 KTA1266GR 220 0 5W 100 0 5W 47 16V 100 25V 24KF 102 M STICON 27K TL494CN 15K 47 25V 15K KTA1268GR 33K 10 25V 22K 1K 510 1N4148 100 16V 10K 10K 51KF KTC3198BL KTA1266GR KTA1266GR 1N5241 103P 4 7K KTA1023Y 4 7K 1N4004 4 7K 10K 100 16V 4 7K 4 7K 50KTH 140KF 104P 200 GND KLR 124E 1 5K KTC3198GR 27K 12K 100 16V 2K C1027Y 4 7M 0 5W C2690Y 18P 3KV CL 10 1 5K 0 5W CL 1617 1...

Page 17: ... 100 100 FWP50N06 FR154x4 2 2 50V 100 2W 222 M 2 2 50V 10K 105 M 80m m 2200 35V 2200 35V YG225D2 YG225D2 FQP50N06 37PHI KTD 9217 20A 20A 1N5404 100 100 330 16V 330 16V O C I KIA7815PI O C I KIA7915PI 105 M 1N4004 2200 25V RX 104P X X 470 35V CL 1113 470 35V 104P 104P 15V 15V J108 1N4148 1N4148 220K 10K 10 50V VCC VEE MUTE 47 16V 104P FQP50N06 TIP117 2 2 0 5W 100 2W 2200 25V RX 2 2K 2 2 50V 2 2 50V...

Page 18: ...104 C105 C121 C122 C497 C197 C297 C397 C396 C296 C496 C196 C302 C301 C401 C402 C347 C348 C319 C419 C219 C147 C148 C248 C119 C761 C762 C448 C781 C705 C722 C721 C717 C701 C202 C201 C101 C102 C490 C390 C291 R780 R781 R751 R752 R395 R495 R396 R397 R496 R497 R196 R297 R296 R295 R790 R133 R792 R306 R303 R302 R405 R402 R406 R305 R403 C290 R301 R390 R490R367 R373 R364 R365 R353 R377 R363 R366 R356 R362 R3...

Page 19: ... R750 R742 R701 R478 R178 R378 C449 C245 C349 C249 C149 C345 C145 C760 Q150 Q710 Q320 Q319 Q316 Q308 Q309 Q305 Q304 Q303 Q306 Q302 Q301 Q350 Q450 Q401 Q402 Q406 Q403 Q404 Q405 Q409 Q408 Q250 Q201 Q202 Q206 Q203 Q204 Q205 Q209 Q208 Q216 Q318 Q317 Q116 Q108 Q109 Q105 Q104 Q103 Q106 Q102 Q101 Q780 Q702 Q708 Q707 Q705 Q701 Q706 Q730 Q731 Q416 C396 C701 C296 R780 R781 R751 R752 R395 R495 R396 R397 R496...

Page 20: ...101 R412 R439 R440 C416 R340 R437 R438 R339 C316 R338 R436 C417 R434 R336 R337 C317 C408 C415 R435 C315 R335 R334 C308 R311 U302 R409 C325 R308 C307 R408 C407 R309 C425 R410 R411 R310 R312 U306 U406 CON03 VR301 C207 R208 R108 VR303 VR103 C107 R109 U206 U102 U106 R209 R111 R112 R110 C125 C225 R210 R211 R212 C208 C108 R234 R134 R135 R136 R137 C115 C117 R138 C116 R140 R139 C216 C215 R240 R239 R235 R2...

Page 21: ... 5 R 3 3 4 C 3 0 8 R 3 1 1 U 3 0 2 R 4 0 9 C 3 2 5 R 3 0 8 C 3 0 7 R 4 0 8 C 4 0 7 R 3 0 9 C 4 2 5 R 4 1 0 R 4 1 1 R 3 1 0 R 3 1 2 U 3 0 6 U 4 0 6 C O N 0 3 V R 3 0 1 C 2 0 7 R 2 0 8 R 1 0 8 V R 3 0 3 V R 1 0 3 C 1 0 7 R 1 0 9 U 2 0 6 U 1 0 2 U 1 0 6 R 2 0 9 R 1 1 1 R 1 1 2 R 1 1 0 C 1 2 5 C 2 2 5 R 2 1 0 R 2 1 1 R 2 1 2 C 2 0 8 C 1 0 8 R 2 3 4 R 1 3 4 R 1 3 5 R 1 3 6 R 1 3 7 C 1 1 5 C 1 1 7 R 1 3...

Page 22: ...Maebashi city 371 8543 Japan No 49808SCH Printed in Japan 2003 03 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 23: ...Electrical parts list Block No 01 03 Packing materials and accessories parts list Block No M3 M5 KS AX7300 3 2 3 4 3 10 Area suffix J Northern America www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 24: ... 36 1 10 10 26 26 26 8 8 40 32 32 22 25 7 7 9 9 37 37 37 35 35 38 4 2 33 34 11 11 24 21 12 12 24 1 17 17 36 36 5 16 18 41 30 14 18 34 6 19 15 27 27 23 34 20 39 3 33 34 34 34 33 33 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu...

Page 25: ...508 0 INSULATION SHEE 1 21 MOCU111535 1 INSULATION SHEE 1 22 MOFI011536 0 FIBER PLATE 1 23 MOCU011511 1 CCFL CUSHION A 1 24 MOCU011512 0 CCFL CUSHION B 6 25 MOCU001521 0 RUBBER CUSHION 1 26 MOCU014097 0 RUBBER CUSHION 5 27 MOCU021701 0 FIBER CUSHION 2 29 MOCU061498 0 EVA CUSHION 2 30 MNSC00140 9 3 SCREW 2 M4 0 NI P 32 MNSC00740 14 SCREW 10 SMT 4X14 NI P 33 MBSC03230 08 SCREW 8 STT2 BH 3X8 BK 34 MB...

Page 26: ...ER104PF 50V C CAPACITOR C347 ELE220UF 16V E CAPACITOR SMS C348 ELE22UF 16V E CAPACITOR SMS C349 MAL473M50V CAPACITOR C390 ACER102PF 50V AC CAPACITOR CH C391 ACER102PF 50V AC CAPACITOR CH C396 ELE2 2UF 50VSE E CAPACITOR SE C397 ELE2 2UF 50VSE E CAPACITOR SE C401 ELE4 7UF 50V E CAPACITOR SMS C402 ELE4 7UF 50V E CAPACITOR SMS C404 CER22PF 50V C CAPACITOR NPO C405 CER100PF 50V C CAPACITOR NPO C406 CER...

Page 27: ...TOR A Q411 B688 TRANSISTOR A Q416 KTC3200GR TRANSISTOR Q450 J108 FET Q701 KTA1023Y TRANSISTOR Q702 KTC3198GR TRANSISTOR Q705 KTA1266GR TRANSISTOR Q706 KTA1266GR TRANSISTOR Q707 KTC3198BL TRANSISTOR Q708 KTA1268GR TRANSISTOR Q710 KTC3198GR TRANSISTOR Q730 KTA1266GR TRANSISTOR Q731 KTA1266GR TRANSISTOR Q745 FQP50N06 FET Q746 FQP50N06 FET Q755 FQP50N06 FET Q756 FQP50N06 FET Q780 J108 FET Q790 TIP117 ...

Page 28: ...K METAL RESISTOR R402 MET1 5WF22K METAL RESISTOR R403 MET1 5WF22K METAL RESISTOR R405 MET1 5WF56K METAL RESISTOR R406 MET1 5WF56K METAL RESISTOR R433 CAR1 5WJ100K CARBON RESISTOR R441 CAR1 5WJ5 6K CARBON RESISTOR R442 CAR1 5WJ22K CARBON RESISTOR R443 CAR1 5WJ10K CARBON RESISTOR R453 CAR1 5WJ1K CARBON RESISTOR R454 CAR1 5WJ4 3K CARBON RESISTOR R455 CAR1 5WJ4 3K CARBON RESISTOR R456 CAR1 5WJ1K CARBO...

Page 29: ...INAL TER03 TMN004 02 TERMINAL TH01 FTD5 350 THERMISTOR TR 8M M TEFLON TUBE 0 7PHI T701 TRANS6300 T CORE 37PHI U101 NJM2068LD IC U301 NJM2068LD IC U701 TL494CN IC U703 KIA7815PI IC U704 KIA7915PI IC VR701 SEMX VR2K SEMI VOLUME 6 5PHI WR1 CHDW1140 N CONNECTOR ASSY 80M M 4P WR2 CHDW1140 N CONNECTOR ASSY 220M M 4P W01 120M M GND WIRE 4 3PHI XXX DACT100 2 5 WAFER Item Parts number Parts name Area Elect...

Page 30: ...SISTOR R131 CAR1 5WJ22K CARBON RESISTOR R132 CAR1 5WJ22K CARBON RESISTOR R134 CAR1 5WJ1K CARBON RESISTOR R135 CAR1 5WJ1K CARBON RESISTOR R136 CAR1 5WJ1K CARBON RESISTOR R137 CAR1 5WJ20K CARBON RESISTOR R138 CAR1 5WJ330K CARBON RESISTOR R139 CAR1 5WJ5 6K CARBON RESISTOR R140 CAR1 5WJ680K CARBON RESISTOR R208 CAR1 5WJ1K CARBON RESISTOR R209 CAR1 5WJ1K CARBON RESISTOR R210 MET1 5WF15K METAL RESISTOR ...

Page 31: ...V0144503211 VOLUME VR303 V0142203211 VOLUME Item Parts number Parts name Area Electrical parts list CCFL Board Remarks Block No 03 A CFL01 190M M LAMP C801 MAL473K100V M CAPACITOR BOX C802 CER18PF 3KV C CAPACITOR C803 CER103PF 50V C CAPACITOR C804 CER104PF 50V C CAPACITOR D801 1N5241 DIODE J101 6M M JUMPER L801 CL 113 INDUCTOR PCB PAS126 01 PCB Q801 KTC1027Y TRANSISTOR Q802 KTC1027Y TRANSISTOR Q80...

Page 32: ... No M M M 5 A3 A4 A5 A6 P6 P2 P1 P3 P5 P4 P2 A1 A2 A7 A8 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 33: ...FRE SPA LVT1028 001A INST BOOK 1 SWE DUT A 2 BT 51018 3 WARRANTY CARD 1 BT 51028 2 J REGIST CARD 1 BT 52006 2 WARRANTY CARD 1 A 3 CHD1140 N CONNECTOR ASSY 2 300M M 4P A A 4 FUSE20A 32V AUTO FUSE 2 A 5 MOCU014167 0 RING RUBBER 4 A 6 MBSC02240 20 SCREW 4 STT1 BH 4X20 BK A 7 BT 20071B JVC CENTER LIST 1 A 8 MDLA058422 0 CAUTION SHEET 1 K I T KSAX6300 SCREW SCREW PARTS KIT 1 A5 A6 P6 www xiaoyu163 com ...

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