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10

10

DCM-380/280

Serial

Input

I/F

Output Amp and

Low-Pass Filter

DAC

8x

Oversampling

Digital Filter

with

Function

Controller

Enhanced

Multi-Level

Delta-Sigma

Modulator

Output Amp and

Low-Pass Filter

DAC

BCK

LRCK

DATA

ML

MC

MD

Function

Control

I/F

System Clock

Manager

Zero Detect

Power Supply

V

OUT

L

V

COM

V

OUT

R

V

DD

DGND

ZEROL

ZEROR

SCK

System Clock

V

CC

AGND

PCM1748

BA033FP

Summary of Contents for DCM-380

Page 1: ...CM 380 280 For U S A Canada Europe U K Australia model 1 Some illustrations using in this service manual are slightly different from the actual set 16 11 YUSHIMA 3 CHOME BUNKYOU KU TOKYO 113 0034 JAPA...

Page 2: ...ice technician LEAKAGE CURRENT CHECK Before returning the unit to the customer make sure you make either 1 a leakage current check or 2 a line to chassis resistance check If the leakage current exceed...

Page 3: ...3 3 DCM 380 280 BLOCK DIAGRAM...

Page 4: ...4 4 DCM 380 280 WIRING DIAGRAM CD MECHANISM CD PICKUP C3P101 CP403 CP402 MAIN SECTION CP501 CP502 TRANS AC CORD POWER SWITCH CN706 SW701 CN802 CN801 CP705 CP704 CN101 CP401 FRONT SECTION JK302 CN301...

Page 5: ...shown in the arrow direction 2 MAIN P W B Remove 1 screw A 2 screws B 1 screw C fixing the Main P W B and 1 screw B mounting the rear Panel then detach the Main P W B as shown in the arrow direction...

Page 6: ...l P W B as shown in the arrow direction 5 BACK PANEL Remove 3 screws F mounting the Bot tom Cover then detach the Back Panel as shown in the arrow direction Note Only in 3x5mm other screws can t be us...

Page 7: ...face MIRR DFCT FOK SERVO DSP FOCUS SERVO TRACKING SERVO SLED SERVO PWM GENERATOR FOCUS PWM GENERATOR TRACKING PWM GENERATOR SLED PWM GENERATOR RFDC CE TE SE FE VC IGEN OPAmp Analog SW A D Converter AD...

Page 8: ...M VC DVCC 25 15 30 29 28 17 16 26 24 23 3 4 6 7 8 9 10 19 18 DVC DVCC DVC VC VC VOFST DVC DVC VCC VOFST B C A D A B C D F E SW PD LD V CC GND VC DVC DVCC CE CEI TE TE_BAL FE FEI RFDCO RFDCI RFAC VFC R...

Page 9: ...B PORT C PORT D PORT E PORT F PORT G 8 8 6 2 8 8 8 8 PB0 to PB7 PC0 to PC7 PD0 to PD7 PE0 to PE5 PF0 to PF7 PG0 to PG7 PE6 to PE7 TEX EXTAL TX CS0 2 ROM 32K 40K 52K 60K BYTES RAM KEY SCAN PORT H PH0 t...

Page 10: ...gital Filter with Function Controller Enhanced Multi Level Delta Sigma Modulator Output Amp and Low Pass Filter DAC BCK LRCK DATA ML MC MD Function Control I F System Clock Manager Zero Detect Power S...

Page 11: ...E REGULATOR T S D MONITOR THERMAL SHUTDOWN LEVEL SHIFT F R F R POWVCC PreVCC POWVCC POWVCC 50k 50k 50k 50k R R F 10k 10k 19k 100 10k MUTE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 25 24 23 22 21 20 32 31...

Page 12: ...Row Buffer Refresh Counter Row Decoder Col Buffer LRAS LCBR LCKE LRAS LCBR LWE LDQM CLK CKE CS RAS CAS WE L U DQM LWE LDQM DQi CLK ADD LCAS LWCBR Timing Register BA4558 BA4558F BA4558N 1ch 2ch VCC OU...

Page 13: ...OUTL V CC2 L V CC2 R AGND2R AGND2L EXTL PCM1732 Open Drain DAC Low Pass Filter Low Pass Filter BPZ Control VOUTR EXTR ZERO DAC ML I2S MC DEM MD FSS CS IWO MODE MUTE RST LRCIN DIN BCKIN Power Supply Po...

Page 14: ...lication circuit Package Io max A Pd max W Vcc max V Type No Functions Equivalent circuit block diagram and sample application circuit Package Io max A Pd max W Vcc max V Built in muting circuits brid...

Page 15: ...old taping 3 3 0 40 275 6 0 0 5 0 1 0 0 0 5 6 35 0 5 12 7 0 5 3 85 0 5 6 35 0 5 12 7 0 2 16 0 0 5 5 2Max 4 2Max 5 2Max 11 0Max 2 5Min 2 5Min 6 0 0 5 18 0 9 0 0 5 0 0 5 1 0 0 5 0 4 0 2 0 1 19 0 0 1 0 5...

Page 16: ...16 16 DCM 380 280 EXPLODED VIEW Parts List...

Page 17: ...603 KMD280 200 1 25 958 0003 201 SCREW TTP CAP M3x8mm 602 B600 056 2 26 958 0003 308 WHEEL 100 KMD280 729 4 27 958 0003 405 LEAF SW LSA 1119H 2PIN 403 DM11A 020 2 28 958 0034 801 SCREW 2 6x8PTP 602 SL...

Page 18: ...R 612 HV3700K 059 2 80 958 0072 407 CONTROL PWB ASS Y 704 DCM380 4040 1 81 958 0008 303 POWER SW 403 A100 005 1 82 958 0008 400 POWER SWITCH BRACKET 300 HDJ7000 478 1 83 958 0008 507 FOOT 612 DCM370 0...

Page 19: ...SW ASS Y 280E3 380E3 704 DCM280 4095 1 107 958 0010 207 MOTOR ASS Y 4 13 704 KMD550B 2049 1 108 958 0010 100 TURNTABLE MOTOR ASS Y 4 39 41 42 43 704 KMD550B 2050 1 109 958 0001 203 TURNTABLE ASS Y 3 3...

Page 20: ...024 109 APPENDAGE LABEL 501 BJ2300E 1190 1 8 I B ASS Y 280BKE2 701 280BKE2 2732 1 8 I B ASS Y 280BKEA BKEK 701 280BKEA 2739 1 8 I B ASS Y 280BKE3 380BKE3 701 280BKE3 2728 1 8 1 958 0011 400 2P RCA PAT...

Page 21: ...art No Part Name Remarks Q ty New 1 SX2 6258 771 MOTOR CHASSIS ASS Y 1 2 SX2 6257 691 MOTOR GEAR ASS Y 1 3 S88 4841 509 OPTICAL PU KSS 213B PR 1 4 S26 2690 801 SLIDE SHAFT 1 5 S26 2690 701 GEAR A S 1...

Page 22: ...22 22 DCM 380 280 PRINTED WIRING BOARD MAIN CD P W B UNIT Ass y COMPONENT SIDE Parts List...

Page 23: ...23 23 DCM 380 280 FOIL SIDE Parts List...

Page 24: ...not always in stock and possibly to take a long period of time for supplying or in some case supplying of part may be refused l When ordering of part clearly indicate 1 and I i to avoid mis supplying...

Page 25: ...3FP E2 TO252 3 417 CTB200 500 IC702 958 0040 303 IC 7805 417 KC730 123 IC703 958 0073 707 IC NJM7808 417 HTV8023KA 5006 IC704 958 0074 405 IC 78L12 TAPING TO 92 417 DCM370E3 373 IC705 958 0074 502 IC...

Page 26: ...6 207 CHIP RESISTOR 10K OHM 1 10W 412 CDVD2001 534 R208 CHIP RESISTOR 1M OHM 1 10W 412 CDVD2001 546 R209 CHIP RESISTOR 470K OHM 1 10W 412 007USB 707 R211 CHIP RESISTOR 1 2K OHM 1 10W 412 007USB 671 R2...

Page 27: ...412 CDVD2001 534 R510 519 CHIP RESISTOR 470 OHM 1 10W 412 CDVD2001 545 R520 522 CHIP RESISTOR 1K OHM 1 10W 412 CDVD2001 540 R523 524 CHIP RESISTOR 220K OHM 1 10W 412 007USB 678 R525 526 CHIP RESISTOR...

Page 28: ...C210 CHIP CAPACITOR 0 1uF 50V 413 DCM280 773 C211 ELEC CAPACITOR 100uF 10V 413 3113 046 C212 ELEC CAPACITOR 10uF 50V 413 DM1000 352 C213 ELEC CAPACITOR 22uF 16V 413 HT8015 163 C214 CHIP CAPACITOR 0 1...

Page 29: ...01uF 50V Only 380 413 DCM280 771 C505 ELEC CAPACITOR 22uF 16V Only 380 413 HT8015 163 C506 509 CHIP CAPACITOR 0 1uF 50V 413 DCM280 773 C510 ELEC CAPACITOR 470uF 10V 413 HT8015 169 C511 ELEC CAPACITOR...

Page 30: ...Only 380 412 CDVD2001 552 1 J079 CHIP RESISTOR 0 OHM 1 10W 412 CDVD2001 552 1 J088 CHIP RESISTOR 0 OHM 1 10W 412 CDVD2001 552 1 J145 CHIP RESISTOR 0 OHM 1 10W 412 CDVD2001 552 1 J161 163 CHIP RESISTO...

Page 31: ...STOR 2 2K OHM 412 007USB 693 R807 CHIP RESISTOR 560 OHM 412 CDVD2001 549 R808 CHIP RESISTOR 910 OH 0603 TYPE 412 007USB 691 R809 CHIP RESISTOR 1 8K OHM 1 10W 412 007USB 692 R810 CHIP RESISTOR 100 OHM...

Page 32: ...RE L 80mm 406 HV3500K 408 1 L303 305 958 0016 900 BEAD CORE 86 019 A TAPING 415 HV3500K 090 3 JK302 958 0018 102 HEADPHONE JACK JY 6313 01 030G 420 DCM270X 062 1 HEADPHONE P W B BARE 405 DCM280 928 1...

Page 33: ...HANGE WITHOUT PRIOR NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacturer CAUTION Before returning the unit to the custo...

Page 34: ...HANGE WITHOUT PRIOR NOTICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacturer CAUTION Before returning the unit to the custo...

Page 35: ...TICE WARNING Parts marked with this symbol have critical characteristics Use ONLY replacement parts recommended by the manufacturer CAUTION Before returning the unit to the customer make sure you make...

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