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PRODUCT SAFETY NOTICE

Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol

!!!

in the parts list and

the schematic diagram designated components in which safety can be of special significance. When replacing a component identified
by

!!!

, use only the replacement parts designated, or parts with the same ratings of resistance, wattage or voltage that are designated

in the parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are
acceptably insulated from the supply circuit before returning the product to the customer.

(R)REC SW

PACK SW

(F)REC SW

PLUNGER

INITIALIZE SW

MOTOR

PH1

GND

REEL

CD_L

A_GND

CD_R

D_GND

+8.5V

GND

PLUNGER

ST_BY

RECORDING

MAIN_MUTE

VF_CE

RESET

BEAT

REC_MUTE

+5.6V

+8.5V

-28V

FL2

FL1

D_OUT

D_CLK

TU_DI

REEL

V_CHECK

(R)REC_SW

(F)REC_SW

PACK_SW

INI SW

P_CON

MOTOR

TU_CE

C4820

C4821

C4822

C4823

C4833

C4720

C4721

C4722

C4723

C4733

C4825

C4725

C4726

C4826

C4727

C4728

C4827

C4828

R4732

R4832

CN457

CN456

C4832

C4732

R4840

R4740

C4840

C4740

C4500

IC442

C4842

C4742

C4841

C4741

R4841

R4501

R4741

R4500

D4500

R4504

R4502

C4505

C4502

C4503

C4844

C4744

C4743

C4843

R4743

4843

R4720

R4726

R4826

R4820

R4827

R4828

R4829

R4831

R4821

R4822

R4823

R4727

R4728

R4729

R4721

R4722

R4723

R4725

R4731

R4825

C4950

C4603

C4601

L4601

4600

C4600

C4606

R4607

C4608

C4607

R4605

Q4602

C4605

Q4603

R4604

C4604

R4602

C4609

R4606

R4608

L4603

L4604

L4602

C4602

R4603

R4601

R4600

Q4601

IC443

R4962

CN450

R4751

R4851

R4750

R4850

C4751

C4851

C4750

C4850

C4501

IC440

C4707

R4800

C4700

R4702

C4701

R4700

C4801

C4800

R4802

R4801

R4701

C4702

C4550

C4704

C4551

R4550

C4802

C4556

C4804

C4554

R4551

C4807

C4806

R4552

C4703

R4703

R4803

C4803

C4708

R4805

C4555

R4553

C4552

C4553

C4805

C4705

C4808

C4706

R4705

R4834

R4734

IC446

D4993

C4993

C4994

R4403

R4402

R4401

R4400

PR495

C4992

C4991

C4990

D4991

Q4990

Q4991

D4992

R4992

C4995

C4996

R4993

PR496

Q4994

Q4960

Q4961

Q4963

Q4962

R4966

R4965

D4960

S4901

R4963

Q4992

C4953

CN455

R4781

R4881

C4997

Q4993

C4984

R4990

Q4600

CN445

Q4501

Q4800

Q4700

R4967

CN440

R4991

R4994

D4994

C4560

R4560

Q4502

R4503

D4998

IC441

R4921

C4921

R4922

R4923

C4922

C4923

CN480

PR436

D4348

R4347

R4348

CN441

C4341

C4342

R4341

C4344

D4341

D4342

C4343

D4345

D4344 D4343

R4340

R4342

C4345

D4320

R4321

D4321

C4320

R4322

R4323

Q4320

Q4321

R4320

R4324

CN400

L4781

L4881

R4745

R4845

Q4410

C4852

C4504

R4609

C4610

L4191

CN412

CN411

CN416

CN415

C4280

4281

D4280

4281

D4283

D4282

C4282

4283

D4284

PR420

C4284

CN420

PT420

1/50

2700P

700P

0.1

15K

10/50

3.9K

2200P

470/35

TDA7265

1000/25

100P

18K

1SS133

10K

18K

2.2/50

47/50

0.1

100P

0.1

2.2

100K

33K

220K

39K

68K

47K

4.7K

39K

33K

220K

39K

47K

4.7K

39K

220K

68K

220K

2200/50

10/50

0.1

470UH

70UH

1/50

4700P

0.027

2200P

KTC3198

0.039

KTC3198

39K

0.1

100

47/16

39K

68K

470UH

BEAD

10/50

56K

22K

KRC107M

BA7755A

100

39K

12K

100P

220/16

AN7348K

1/50

100

0.033

120K

100/16

100

100/16

0.033

120K

1/50

0.068

1/50

22/16

10M

1/50

10/50

1/50

22/16

22K

1/50

3300P

22K

560P

18K

560P

1500P

8.2K

47/16

22K

220/16

0.047

100P

1500P

3300P

8.2K

15K

NJM78L05A

1SS133

470/25

47/10

330

15K

10K

800mA

470/16

220/16

0.022

MTZJ13B

KTD2058

MTZJ10B

820

0.022

220/10

820

1000mA

KRC107M

MPSA56

KRC107M

470

1SS133

100

KTA1271

470/10

390

0.01

KTA1271

2200/25

470

MPSC56

KRA107M

KRC107

4.7K

470

4.7K

RL153

10/50

4.7K

KRC107

15K

1SS133

LC75342

100P

750

MTZJ5.1

100

220/35

47/50

2.2K

47/50

1SS133

47/63

MTZJ30B

1SS133 1SS133

47/50

MTZJ3.9B

10K

1SS133

10;50

100K

4.7K

KTA1266

2.2K

390

MPSA56

0.01

22/16

0.01

BD82N

D82N

BD82N

0.01

RL153

2500mA

0.01

V_CHK

D_CLK

TU_DO

VF_CE

TU_CE

TU_DI

MUTE

BEAT

REC

+8.5V

CD_R

TU_R

AUX_R

VF_CE

TU_DO

D_CLK

+8.5V

+5.6V

TU_R

TU_L

TU_DO

TU_CE

TU_DI

D_CLK

AUX_L

AUX_R

CD_L

TU_L

AUX_L

REC

MUTE

+5.6V

BEAT

+8.5V

+12V

CD_L

CD_R

+8.5V

-28V

+5.6V

V_CHK

+8.5V

R-IN

L-IN

MUT/ST-BY

R-OUT

L-OUT

R-NF

26.0V

15.3V

-VS

+VS

R-CH

L-CH

R-CH

L-CH

R/P

HEAD

SP481

SP471

WOOFER

RIGHT

LEFT

+5.6V

A_GND

TU-R

TU-L

+8.5V

TU-DO

TU-CE

TU-DI

TU-CLK

GND

PBNF

PBEQ

PBOUT

ALC

LOWCUT

RECIN

RECOUT

ALC

VCC

PBNF

PBEQ

PBOUT

RECIN

RECOUT

REC/PB

B PB

RIPPLE

FILTER

GND

PHONE

HEAD

TEST

VDD

VSS

Vref

OUT

BASS2

BASS1

TRE

VRIN

SELO

VRIN

TRE

BASS1

BASS2

OUT

L-NF

240V/50Hz

FUSE(TH)

16.0

12.0

12.6

8.5

16.0

9.1

(1/4W FUSE)

6.2

3.9

4.2

4.5

FU421

T4A L 250V

SCHEMATIC DIAGRAM (AMPLIFIER)

This is a basic schematic diagram.

Содержание DC-BM300

Страница 1: ...t to do if 2 Laser beam safety precaution 2 CD pick up maintenance 2 Tape adjustments 3 Tuner adjustments 4 Exploded view Cabinet Chassis 5 Tape mechanism 9 CD mechanism 10 Parts list Cabinet Chassis 6 Tape mechanism 9 CD mechanism 10 IC block diagram description 11 FL display description 15 Wiring connection 16 Schematic diagram CD 18 FRONT 20 AMPLIFIER 24 TUNER 26 Wiring diagram CD 17 FRONT 22 A...

Страница 2: ...ONNECTIONS L R IN VIDEO AUDIO L R RESET L R VIDEO AUDIO EXT ANT AM LOOP FM 75 AM LOOP FM 75 To an AC outlet FM outdoor aerial AM loop aerial FM indoor aerial R ch speaker L ch speaker Video equipment General Output power 12 5 W x 2 at 4 ohms 10 distortion Inputs VIDEO IN 500 mV 50k ohms Outputs SPEAKERS 4 ohms PHONES 8 32 ohms Power requirements AC 230V 240V 50Hz Power consumption 35 W Dimensions ...

Страница 3: ...the unit for at least 30 seconds 3 Connect the mains lead 4 Resume the operation L R IN VIDEO AUDIO L R RESET EXT ANT AM LOOP FM 75 CAUTION USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE LASER OUTPUT 0 6 mW Max CW WAVELENGTH 790 nm L R IN VIDEO AUDIO L R RESET EXT ANT AM LOOP FM 75 CAUTION INVISIBLE LASER RAD...

Страница 4: ... BAND PHONES M I C R O C O M P O N E N T S Y S T E M PTYCHECK PRESET PRESET NORMAL REVERSE Fig 1 Be sure to clean the heads before attempting to make any adjustment Be sure both channels 1 and 2 are the same level Using a dual channel oscilloscope Be sure both channel s waveform are same for the phase matching After completion of the adjustment use the threadlock TB 1401B to secure the azimuth adj...

Страница 5: ...0 Q4963 Q4962 Q4961 Q4960 CD_R CD_GND CN48 IC443 C4701 C4702 C4551 C455 C4704 Q4700 C4833 C4603 L4602 Q4600 C4602 C4600 L4600 L4601 R4607 Q4603 R4601 8 5V J4315 J4503 J4605 J4502 J4305 J4304 J4306 J4626 J4628 J4311 J4314 J4 J4307 J4302 J J4520 J4308 J4309 J4324 R4602 J4301 J4608 R REC SW PACK SW NC F REC SW PLUNGER INI SW MOTOR PH1 GND REEL J4313 J4604 IC241 C2461 R2460 R2459 C2456 R2453 R2452 C24...

Страница 6: ... 8 Y02 Y03 Y01 Y04 Y05 Y05 Y05 Y06 Y06 Y07 Y07 Y08 Y08 Y09 76 Y14 Y14 Y13 Y11 Y12 Y12 Y11 Y15 Y15 Y15 Y15 Y15 Y09 Y04 10 16 52 NSP 72 73 74 55 75 Y10 54 53 56 58 59 9 13 12 11 4 14 15 71 51 17 18 57 20 21 19 22 N S P Not supplied as service parts ...

Страница 7: ... REFLECTOR STANDBY LED 9 614 303 1277 LATCH CAM DECK DOOR LOCKING 10 614 318 5956 BUTTON PLAY 11KEYS 11 614 318 5949 BUTTON TUNER 4KEYS 12 614 318 7486 HOLDER STAMDBY LED 13 614 323 0045 DEC WINDOW LED 14 614 318 6090 HOLDER LED 15 614 318 6236 REFLECTOR 16 614 318 6106 HOLDER REFLECTOR 17 614 322 9971 ASSY CABINET BOTTOM 18 614 129 1901 FIXER AC CORD or 614 284 1884 FIXER AC CORD 19 614 324 5612 ...

Страница 8: ... 614 220 5471 SWITCH TACT S6210 645 006 5958 SWITCH PUSH 1P 1T or 614 240 1002 SWITCH TACT or 614 220 5471 SWITCH TACT S6211 645 006 5958 SWITCH PUSH 1P 1T or 614 240 1002 SWITCH TACT or 614 220 5471 SWITCH TACT SOCKET P W BOARD ASSY REF NO PART NO DESCRIPTION 72 614 323 0335 ASSY PWB SOCKET Only Initial CN681 614 310 2533 PLUG 12P or 645 006 0878 PLUG 12P CN682 645 006 0878 PLUG 12P or 614 310 25...

Страница 9: ...201 405 151 4301 TR KTC3195 Y or 405 151 4806 TR KTC3195 O Q2451 405 036 3702 TR 2SA1564 or 405 151 5209 TR KRA107M or 405 000 0904 TR DTA114YS or 405 078 2404 TR BN1A4P Q4320 405 141 3406 TR KTA1266 GR or 405 004 4502 TR 2SA608 F NP or 405 004 5004 TR 2SA608 G NP or 405 141 3505 TR KTA1266 Y Q4321 405 141 3406 TR KTA1266 GR or 405 141 3505 TR KTA1266 Y or 405 004 4502 TR 2SA608 F NP or 405 004 50...

Страница 10: ...BD82 D4281 407 196 5800 DIODE 1N5402BD82 D4282 407 196 5800 DIODE 1N5402BD82 D4283 407 196 5800 DIODE 1N5402BD82 D4284 407 098 3300 DIODE RL153 BF S2 L4191 645 038 6053 INDUCTOR 181U or 645 041 3087 INDUCTOR 180U PR420 645 014 2567 PROTECTOR 2 5A 125V TAPE MECHANISM REF NO PART NO DESCRIPTION 614 315 4839 ASSY MECHA TM DA370TN SH TM01 645 045 1799 R P HEAD KC 9142EA 0321 TM02 645 010 9454 PINCH RO...

Страница 11: ...ULLEY PM11 614 237 7048 GEAR LOADING RETARD GEAR 1 PM12 614 300 5124 GEAR LOADING RETARD PM13 411 044 7502 SCR PAN SW 2X5 LOADING MOTOR FIX PM14 412 047 3904 SPECIAL SCREW LOADING GEAR FIX PM15 614 237 7079 GEAR LOADING GEAR PM16 411 020 9902 SCR S TPG BRZ FLG 3X8 GEAR A112 FIX PM17 614 300 5131 GEAR LOADING CUM GE PM18 614 237 7208 SLIDE BASE UP DOWN or 614 325 3952 SLIDE BASE UP DOWN PM19 614 31...

Страница 12: ...FACE SLC RF Amp TE T SERVO T LOGICK F SERVO F LOGICK SPINDLE SERVO SLED SERVO IC103 MM1469XH CD Driver 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Vcc Vcc DRIVER MUTE D BUF D BUF D BUF D BUF D BUF D BUF D BUF D BUF Level shift Level shift Level shift Level shift T S D 1 PRE DRIVE INPUT LOGIC CIRCUIT 2 3 5 8 10 9 4 7 6 GND IN1 OUT1 P1 VZ VCC IN2 Input Output Action Br...

Страница 13: ...LTER GND VCC CRO NOR HI LO ALC L REC OUT L REC IN ALC L PB AMP OUT L PB EO L PB NF R PB AMP L PB AMP IC441 LC75342M Function SW Electric VR 2 Band Equalizer 2 1 24 17 16 3 4 5 6 18 15 7 8 9 10 11 14 19 20 21 22 13 Vssx XIN XOUT FMIN AMIN CE DI CL DO VDD Vssd PD AIN AOUT Vssa IFIN IO1 IO2 BO1BO2 BO3 BO4 PHASE DETECTOR CHARGE PUMP UNLOCK DETECTOR UNIVERSAL COUNTER REFERENCE DIVIDER SWALLOW COUNTER 1...

Страница 14: ... terminal for R ch 10 EFMIN I EFM signal input terminal for slice level control 43 XVDD Power supply of crystal oscillation 11 TEST2 I TEST pin 44 XOUT O 12 CLV O Output terminal for Disc motor control 45 XIN I 13 CLV O Output terminal for Disc motor control 46 XVSS GND of crystal oscillation 14 V P O Change of rough servo phase control 47 SBSY O Output terminal for synchronizing signal of Rough s...

Страница 15: ... P87 AN7 I Connect to GND 76 S43 PF3 TAPE_INI I Tape Deck Initialize 27 P71 INT1 WRQ I CD DSP interface sub Q Request 77 S44 PF4 POW_RY O Power Relay Control Output High Relay On 28 P72 INT2 T0IN RDS IN I Serial date input for RDS IC 78 S45 PF5 SP_RY O Speaker Relay Control Output High Relay On 29 P73 INT3 T0IN IR I Remote control input 79 S46 PF6 LED O Light for CD 30 S0 T0 O Open 80 S47 PF7 Mote...

Страница 16: ... d a b f h j k g m c e p r n d a b f h j k g m col c e p r n d Dp a b f h j k g m c e p r n d a b f h j k g m c e p r n d 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G PIN No CONNECTION 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 F F NP 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NX NX P17 P16 P15 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 NP F F PIN No CONNECTION 35 1 ...

Страница 17: ... CN682 12P CN113 6P CN114 5P CN123 5P CN111 15P CN122 12P CD LOARDING MECHA 5P CD PICK UP MECHA 6P CD MECHANISM CD P W B POWER SUPPLY P W B 10P CN645 2P CN604 2P CN601 28P FL601 CD LED P W B FRONT P W B AMPLIFIER TUNER P W B SOCKET P W B TAPE DECK MECHANISM T4A L 250V VIDEO AUDIO IN CN450 SPEAKERS L ch R ch FM ANT AM LOOP ANT This is a basic wiring connection ...

Страница 18: ...1505 J1509 J1410 J1513 J1414 J1413 J1412 J1411 J1507 J1501 J1502 CN122 J1316 J1503 RF IC101 LA9241M IC102 LC78622NE CN123 J1518 J1517 C1451 R1454 C1452 R1455 C1456 R1456 R1343 R1336 R1335 R1335 R1335 R1480 C1480 C1983 C1983 C1983 R1981 C1491 R1465 C1470 R1475 C1475 C1468 C1467 C1466 C1471 R1453 R1304 R1303 R1305 C1304 R1309 C1309 C1305 C1341 R1308 R1311 C1310 R1310 R1312 C1315 R1318 C1314 R1317 R1...

Страница 19: ...4 3 2 1 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 1 2 3 4 5 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CD L CD R DSP_RESET RWC DRF WRQ RWC SQOUT COIN CQCK A GND WRQ DSP_RESET SQOUT COIN CQCK DRF CD R CD L A GND E C D F SLED SLED D MUTE FSX CONT2 CONT1 TEST2 DVSS TB F E FIN1 FIN2 FSS...

Страница 20: ...11 10 9 8 7 6 5 4 3 2 1 2 1 3 2 1 1 2 3 80 79 78 77 76 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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 1 2 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ...

Страница 21: ...T_BY MOTOR PLLUG REC M_MUTE RESET BEAT R_MUTE TRY_OPEN TU_DI D_CLK VF_DO 28V FL1 FL2 J6306 B GND TO CD_TRAY_LED GND TU_CE RESET TRY_CLS COIN SQOUT CQCK RWC DRF Q6301 Q6201 Q6202 J6307 J6317 X6102 J6117 J6103 J6118 J6209 Q6108 J6114 D6110 J6110 J6303 SE601 J6120 Q6107 Q6101 C6212 D6112 D6115 D6111 J6125 J6106 J6104 J6200 J6210 J6310 J6121 J6314 J6312 J6315 J6316 J6123 J6207 J6304 J6122 J6204 J6124 ...

Страница 22: ... C4280 C4281 D4280 D4281 D4283 D4282 C4282 C4283 D4284 PR420 C4284 CN420 PT420 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 2700P 2700P 0 1 0 1 0 1 0 1 15K 15K 10 50 10 50 3 9K 3 9K 2200P 2200P 470 35 TDA7265 1000 25 1000 25 100P 100P 18K 1K 18K 1K 1SS133 10K 18K 2 2 50 47 50 0 1 100P 100P 0 1 0 1 2 2 2 2 1K 100K 100K 1K 33K 220K 39K 68K 47K 4 7K 39K 33K 220K 39K 47K 4 7K 39K 220K 6...

Страница 23: ...000P 1SS133 330 0 01 120K 120K 0 47 50 0 01 LA1186N 0 01 22 0 022 18 SVC211 100K 100P 8 2U 1000P 100K SVC211 100K 0 01 1P 0 022 330K 15P 0 022 270 560 15P 5P 1 5K 2P 1000P 22P 33 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 1 2 3 FM IF AM MIX AM IF REG GND SD ST FM DET VDD MUTE F...

Страница 24: ... J4518 J4519 NC CD_L 8 5V C4609 C4605 L4603 J4315 J4320 J4316 J4516 J4629 J4503 J4317 J4609 J4321 J4612 J4613 J4614 J4515 J4318 J4319 J4606 J4607 J4505 J4510 J4506 J4605 J4603 J4600 J4310 J4502 J4305 J4304 J4306 J4626 J4628 J4303 J4311 J4314 J4312 J4620 J4509 J4507 J4307 J4302 J4610 J4514 J4635 J4520 J4630 J4601 J4308 J4309 J4324 J4517 J4501 J4500 IC442 R4602 J4322 J4301 J4608 R REC SW PACK SW NC ...

Страница 25: ...asic wiring diagram CN681 CN682 1AD4B10D1250D T002 94V 0 SOCKET P W BOARD 2500 CN420 CN411 CN412 L4191 FU421 PR420 D4284 1AD4B10D1250C T002 94V 0 T4A L 250V D4282 D4280 D4281 D4283 J4200 J4202 J4201 PT420 BW BL C4284 C4284 C4282 C4282 C4280 C4280 C4281 C4281 C4283 C4283 C4284 C4282 C4280 C4281 C4283 POWER SUPPLY P W BOARD ...

Страница 26: ...SANYO Electric Co Ltd Osaka Japan Jul 02 BB Printed in Japan ...

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