Sony HCD-EC70 (MHC-EC70 Mini Hi-Fi System) Service Manual Download Page 36

Page: 36 / 62

HCD-EC70

HCD-EC70

6-15. SCHEMATIC DIAGRAM — AMP SECTION —

4/5

R370

R374

R375

R373

R385

R386

R203

R210

R211

C206

R202

R208

R205

R247

R246

R248

R256

R257

C308

C307

C204

R204

R220

C216

R232

R238

R252

JW221

JR201

C208

C205

R253

R254

C224

C202

WH301

WH302

C365

C364

IC201

C223

R214

R215

R213

R218

R217

R235

R212

R225

R227

R226

D208

R207

C207

C212

C213

C209

R209

Q201

R230

R231

C217

D207

R233

IC301

Q366

Q367

R343

R344

R339

R340

C361

R359

R353

R361

R327

Q361

R365

C358

R396

R368

R367

R395

C357

C309

R309

R307

R315

R313

C311

C310

R310

R308

R314

C360

EP301

C362

C363

R376

R371

R372

R377

JW303

C306

R311

R312

R316

C312

R324

R322

R323

R321

R358

R338

R330

R334

R342

Q302

D361

R341

Q301

R349

R337

R329

R331

C319

C320

WH303

CNP201

CNP202

CLP202

Q203

Q207

R362

R387

10k

100k

10k

2.2k

470k

0.22

100
25V

47k

4.7k

1/4W

4.7k
1/4W

100

47k

50V

47k

0.22

50V

22k

220

220p

10p

0.0047

220p

0.01

STK404-130S

0.047

10k

220

4.7k

10k

2.2k

MC2838-

T112-1

4.7k

1/4W

50V

0.1

50V

0.1
50V

100

100V

220

2SA2026

22k

4.7k

50V

MC2838-

T112-1

22k

STK403-090-S

-T

-1

2SA2026

2SC5625

22k

100 50

22k

2SC3052F-

T1-LF

4.7k

0.0047

47k

0.0047

4.7

50V

220

47k

10p

50V

4.7

50V

220

47k

0.1

EARTH TERMINAL

100V

220

470p

100

10p
50V

0.22

10k

22k

220

10k

2.2k

2SA2026

MC2838-

T112-1

2.2k

2SA2026

10k

22k

220

10k

0.0047

C CLIP

40MM

2SC3052

F-T1-LF

2SC3052
F-T1-LF

10k

•

See page 40 for IC Block Diagram.

Summary of Contents for HCD-EC70 (MHC-EC70 Mini Hi-Fi System)

Page 1: ...THD Inputs AUDIO IN stereo mini jack Sensitivity 800 mV impedance 47 kilohms Outputs PHONES stereo mini jack Accepts headphones with an impedance of 8 ohms or more SPEAKER Accepts impedance of 8 ohms CD player section System Compact disc and digital audio system Laser Diode Properties Emission duration continuous Laser Output Less than 44 6 µW This output is the value measurement at a distance of ...

Page 2: ...SANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT NE REMPLACER CES COM POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY 6 DIAGRAMS 6 1 Block Diagram BD DRIVER Section 22 6 2 Block Diagram TUNER Section 23 6 3 Block Diagram MAIN Section 24 6 4 ...

Page 3: ...e printed circuit boards may not come printed with the lead free mark due to their particular size LEAD FREE MARK Unleaded solder has the following characteristics Unleaded solder melts at a temperature about 40 C higher than ordinary solder Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time Soldering irons using a temperature reg...

Page 4: ... 0 DISCS s O NOT SAVE OTHER TYPES OF TRACKS OR lLES OR UNNECESSARY FOLDERS ON A DISC THAT HAS 0 lLES s OLDERS THAT HAVE NO 0 lLES ARE SKIPPED s 0 lLES ARE PLAYED BACK IN THE ORDER THAT THEY ARE RECORDED ONTO THE DISC s 4HE SYSTEM CAN ONLY PLAY 0 lLES THAT HAVE A lLE EXTENSION OF h 0 v s F THERE ARE lLES ON THE DISC THAT HAVE THE h 0 v lLE EXTENSION BUT THAT ARE NOT 0 lLES THE UNIT MAY PRODUCE NOIS...

Page 5: ...T THE HOUR AND THEN PRESS 4 2 ȼ 4HE MINUTE INDICATION mASHES 5SE THE PROCEDURE ABOVE TO SET THE MINUTE 5SE THE SAME PROCEDURE AS IN STEP TO SET THE TIME TO STOP PLAYING 3ELECT THE SOUND SOURCE 0RESS Ã Ñ ȯ REPEATEDLY UNTIL THE DESIRED SOUND SOURCE APPEARS AND THEN PRESS 4 2 ȼ 4HE DISPLAY SHOWS THE TIMER SETTINGS 0RESS ÒÄÆ ȩ TO TURN OFF THE SYSTEM F THE SYSTEM IS ON AT THE PRESET TIME THE 0LAY 4IMER...

Page 6: ...ge 8 3 7 PANEL BOARD Page 10 3 11 OPTICAL PICK UP KSM 213DCP BD83S BOARD Page 13 3 12 BELT DLM3A Page 14 3 16 DC FAN Page 16 3 10 CD SECTION AND BASE UNIT BU K6BD83S2 WOD SECTION Page 12 3 13 CHASSIS PT SECTION Page 14 3 14 PT AC BOARD POWER TRANSFORMER Page 15 3 15 LOW AMP BOARD HIGH AMP BOARD TRANSISTOR BOARD Page 15 3 9 MAIN BOARD Page 11 3 8 JACK BOARD Page 10 3 2 SIDE PANEL R AND SIDE PANEL L...

Page 7: ...r CNP501 5 two claws 6 two dowels 1 screw KTP3 10 2 screw KTP3 10 3 three screws BV3 10 3 2 SIDE PANEL R AND SIDE PANEL L 3 3 TOP SECTION 3 side panel R 6 side panel L 5 two screws BV3 10 2 two screws BV3 10 1 four screws TP3 12 4 four screws TP3 12 Note Follow the disassembly procedure in the numerical order given ...

Page 8: ...8 HCD EC70 1 Open the cassette box 3 Slide the lever in the direction of the arrow 2 four screws BVTP 2 6 8 4 mechanical deck 2 belt 2 1 belt 1 3 4 MECHANICAL DECK 3 5 BELT 1 BELT 2 ...

Page 9: ...he front panel section 3 screw KTP3 10 4 two screws BV3 10 5 screw KTP3 10 qa front panel section 2 wire flat type 27core CNS111 1 wire flat type 13core CNS671 7 two screws BVTP 2 6 8 9 JACK HOLD A board q JACK board 3 6 FRONT PANEL SECTION ...

Page 10: ... 7 PANEL BOARD 3 8 JACK BOARD 1 two screws BVTP 2 6 8 5 JACK board 3 JACK HOLD A board 2 JACK HOLD B board 4 screw BVTP 3 6 5 PANEL board 3 knob VOL 4 claw 2 wire flat type 27core CNS701 1 fifteen screws BVTP 2 6 8 ...

Page 11: ...0 7 wire flat type 23core CNS104 2 wire flat type 27core CNS111 qs MAIN board 1 connector CNP171 6 connector CNP901 5 connector CNP202 4 connector CNP302 3 connector CNP151 q connector CNP301 qa Remove soldering from the three points 3 9 MAIN BOARD ...

Page 12: ...ews B2 6 BV tapping 7 two screws BVWH tapping 8 cover CD mecha q CD section and base unit BU K6BD83S2 WOD section 5 tray panel 4 wire flat type 23core 9 wire flat type 13core 3 Remove the CD section and base unit BU K6BD83S2 WOD section in the direction of the arrow 1 wire flat type 23core CNS104 ...

Page 13: ...wire flat type 16 core CN301 q BD83S board 9 optical pick up KSM 213DCP 4 two screws PTPWHM 2 6 1 two screws PTPWHM 2 6 2 two coil springs insulator 3 two insulators 5 two coil springs insulator 6 two insulators 3 11 OPTICAL PICK UP KSM 213DCP BD83S BOARD ...

Page 14: ...M3A 5 belt DLM3A 1 two screws 1 two screws BV3 10 2 four screws BV3 10 3 rear cabint 5 four screws BVTP4 12 4 Remove soldering from the two points 6 chassis main mold 8 HOLD board 7 screw BV3 10 9 AC cord 3 12 BELT DLM3A 3 13 CHASSIS PT SECTION ...

Page 15: ...rew BV3 10 2 lead 5 screw BV3 10 1 connector CNP201 4 LOW AMP board 9 TRANSISTOR board 7 HIGH AMP board 6 two transisitor screws 2 screw BV3 10 3 two transisitor screws 8 screw BV3 10 3 14 PT AC BOARD POWER TRANSFORMER 3 15 LOW AMP BOARD HIGH AMP BOARD TRANSISTOR BOARD ...

Page 16: ...16 HCD EC70 2 DC fan 1 two screws BV3 10 3 16 DC FAN ...

Page 17: ...e 45 90 135 180 good wrong JACK board PHONES jack J102 Precaution 1 Clean the following parts with a denatured alcohol moistened swab record playback head pinch roller erase head rubber belts capstan idlers 2 Demagnetize the record playback head with a head demagnetizer Do not bring the head magnetizer close to the erase head 3 Do not use a magnetized screwdriver for the adjustments 4 After the ad...

Page 18: ...e diamond shape in the center of the waveform can be clearly distinguished VOLT DIV 200 mV TIME DIV 500 ns level 0 9 0 4 Vp p TP VC TP RFACI IC201 BD83S Board SIDE B CD SECTION Note 1 CD Block is basically constructed to operate without adjustment 2 Use YEDS 18 disc 3 702 101 01 unless otherwise indicated 3 Use an oscilloscope with more than 10 MΩ impedance 4 Clean the object lens by an applicator...

Page 19: ...ital Voltmeter L852 530 kHz 1 5 0 1 V Confirmation 1 710 kHz 8 0 5 V AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L851 530 kHz FM FREQUENCY COVERAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter L805 87 5 kHz 1 75 0 1 V Confirmation 108 kHz 6 2 0 5 V FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L804 98 MHz Adjustment Location ...

Page 20: ... CNP802 ANTENNA 1 3 L851 AM TRACKING ADJUSTMENT FM TRACKING ADJUSTMENT TUNER GND TUNER VT FM FREQUENCY COVERRANGE ADUJUSTMENT AM FREQUENCY COVERRANGE ADUJUSTMENT L852 L806 L804 L805 FM DETECTOR ADUJUSTMENT MAIN BOARD Component side MAIN BOARD Conductor side IC801 pin qs TUNER OUT L ch ...

Page 21: ... REC CD STOP Circled numbers refer to waveforms Signal path F TUNER FM f TUNER AM J CD d AUX E PB TAPE a REC TAPE Note on Printed Wiring Boards X parts extracted from the component side Y parts extracted from the conductor side f internal component Pattern from the side which enables seeing Indication of transistor Note The components identi fied by mark 0 or dot ted line with mark 0 are critical ...

Page 22: ...RF AMP DSP MP3 12 6 11 13 14 VR PD 16 15 18 17 4 23 2 20 MUTE CH2OUTF CH1FIN CH1RIN CH2FIN CH3FIN OPIN CH2OUTR CH1OUTR CH1OUTF CH4OUTF CH4OUTR CH3OUTR CH3OUTF M M SPINDLE SLED VCC VC A B C D E F DETECTOR A B E 50 F 51 LD 66 PD 67 TFDR 43 SSTP 39 FFDR 45 SFDR 41 MPD M MUTE 38 XTACN XRST DATA XLAT CLOCK 117 AOUT2 112 AOUT1 108 XTAO 109 XTAI 57 58 C 59 D 60 SENS XTACN XRST DATA XLAT CLOCK SENS 13 XLA...

Page 23: ...C CF802 10 7MHz L803 PD LP IN LP OUT DO DI CL CE X801 75kHz XIN XOUT AM MIX FM MIX FM DET AGC AM IF IN FM IF IN 12 13 L OUT R OUT IC801 AM FM IF AMP MIX MPX DET OSC FM AM PLL TU DO TU DI TU CE TU CLK TU ANSD MAIN SECTION Page 24 B TUNER R CH R CH TUNER L CH L CH CNP802 3 1 FM FREQUENCY COVERAGE AM FREQUENCY COVERAGE AM TRACKING FM DETECTOR FM TRACKING CF803 450kHz TU DI TU CE TU DO TU ANSD 9V VM9V...

Page 24: ...EC 10 R CH R CH L CH P27 48 POWER AMP HIGH SEG0 SEG31 59 62 COM0 COM3 LIQUID CRYSTAL DISPLAY LCD702 Q135 Q301 Q367 Q366 Q131 137 µCON B 3 6V 36 P60 ANO P73 AN11 SI2 LINE FILTER L001 9V VM9V 4 5 11 IC301 2 P25 D702 9V REG IC101 VP VP 1 3 D101 Q151 154 D111 113 3 3V REG Q191 Q192 AVDD 3 3V DVDD 3 3V 3 3V REG D156 D154 9V POWER MONITOR Q121 122 3 6V REG Q701 703 1 P24 3 6V 67 63 64 89 94 100 17 P40 L...

Page 25: ... IC201 IC402 BD83S BOARD SIDE A BD83S BOARD SIDE B 1 1 868 067 12 3 5 E 4 M SPINDLE MOTOR S201 LIMIT M SLED MOTOR F MAIN BOARD CNS104 Page 27 OPTICAL PICK UP BLOCK KSM 213DCP 12 1 868 067 12 12 TP RFACI TP VC 1 A B C D E F G 2 3 4 5 6 7 8 9 10 11 12 Semiconductor Location Ref No Location IC201 E 8 IC203 G 3 IC402 C 10 Q321 F 5 ...

Page 26: ...5947FM E2 100p 0 1 0 047 0 1 100k 1 CXD3014A 201R 0 220 10V 1 0 10p 0 1 1 1 BH18LB1WG TR 0 23P 10p 5p 5p 0 1 16 9344MHz 1k 1M 0 1 FRDR FFDR TRDR TFDR FRDR FFDR TRDR TFDR SP SP SL SL SP SP SL SL OPIN OPIN CH1FIN CH1RIN CH2FIN CH2RIN GND CNF4 POWVCC CH2OUTR CH2OUTF CH1OUTR CH1PUTF CH4OUTR CH4OUTF CH3OUTF CH3OUTR POWVCC MUTE GND CH3RIN CH3FIN CH4IN CH4CAPA OPOUT PREVCC VREF GAIN SW MIRR DFCT FOK VSS ...

Page 27: ... 6 Q153 I 6 Q154 I 6 Q191 F 6 Q192 F 6 Q251 D 7 Q303 B 6 Q304 B 6 Q305 C 6 Q306 C 6 Q507 B 10 Q801 B 5 Q802 B 5 Q901 I 2 Q902 I 3 Q921 I 3 IC801 IC401 IC101 D193 E TAPE MECHANISM DECK REC PB 1 4 1 27 1 1 3 3 1 26 2 3 1 5 E E E E E E 1 1 3 1 1 23 1 5 E 3 8 E E E E E E E E E not used E E E E E E E E E E E 1 8 1 3 A PANEL BOARD CNS701 Page 33 E PT AC BOARD WH151 Page 37 D LOW AMP BOARD CNP202 Page 35...

Page 28: ...851 C830 C829 C825 C822 C811 C802 C839 Q802 C815 C832 CF802 C856 C847 C848 C853 L803 CF803 D802 D803 CNP802 C801 L806 C820 IC801 100p 100p 100p 10pC 18p 18p 75KHz 0 047 1000p 0 1K 0 47 0 47 0 22 0 1 2SC3052F T1 LF 0 1 0 22 0 22 0 01 0 22 22 50V 220 10V 220 10V 0 10 10k 10 10 10k 22k 2 2k 100 100k 100k 22k 100k 1k 2 2k 2 2k 10k 4 7k 1k 4 7k 4 7k 0 10k 0 47k 47k 100 4 7k 47k 4 7k 22 100k 0 1 470 1k ...

Page 29: ...29 R234 R228 R201 R237 R206 R251 Q304 Q303 R320 R319 Q305 Q306 R351 R350 R352 R354 R325 R326 R391 R392 R249 R250 R393 R394 R255 1000p 0 047 0 047 1000p 0 047 0 047 2SC3052F T1 LF 0 022 0 022 470 10V 1 50V 1k 47k 4 7k 4 7k 10k 47k 4 7k 10k 1k 47k 4 7k 10k 47k 10k 100 47k 470 2 2k 47k 2 2k 4 7k 2SC3052F T1 LF 2SC3052F T1 LF 4 7k 4 7k 2SA1235 TP 1EF 2SC3052F T1 LF 22k 47k 4 7k 22k 1k 1k 0 0 220 0 4 7...

Page 30: ...3 R444 R435 R436 C534 C530 C434 C433 C523 C529 C437 C438 L501 C522 C524 R544 R542 R541 C405 C401 Q192 C551 C412 C413 Q191 C510 C509 CNS104 SW501 D193 R543 R545 C431 C432 IC401 2SC3052F T1 LF 4700p 50V 0 01 2200p 2200p 4700p 4700p 47p 47p 4700pK 4700pK 1 0 1 0 100k 100k 2 2k 2 2k 10k 10k 4 7k 4 7k 22k 4 7 22k 4 7k 4 7k 47k 47k 4 7k 4 7k 22k 22k 4 7 22k 22k 4 7k 4 7k 4 7k 22k 4 7k 4P 3P 4 7k 4 7k 4 ...

Page 31: ...3 R913 R914 R132 C143 R915 J101 L102 L101 RY131 W103 JW129 D901 C901 C902 Q901 R906 Q902 C903 Q921 C921 J201 RY201 Q134 Q133 0 1 50V 0 1 50V 0 1 50V 0 1 50V 10 10 10k 47 1 4W 47 1 4W 47 1 4W 0 1 50V 1k 10 10 4 7k 4 7k 47k 100k 4 7k 10k 4 7k 10 1 4W 10 1 4W 10 1 4W 2 2 1 220k 3P FAN MOTOR 5P 5P 10 10 10 10 10 10 10 10 10 10 10 10 0 1 50V 47 1 4W 47 1 4W 47 1 4W 100k 0 01 2 2k 2 2k 10k 470 10V 10 1 ...

Page 32: ...2 C111 CN101 CN102 C141 C105 C106 CNP151 Q131 Q137 Q132 Q138 Q141 Q142 10EDB40 TB5 10EDB40 TB5 0 1 25V 0 1 25V 22k 47k 4 7k 4 7k 47k 47k 2 2k 2 2 220k 220k 10k 10k 10k 2 2k MC2836 T112 1 10k 10k 4 7k 4 7k 10k 10k 22k 22k 2 2k 2 2k 100 0 1 0 022 4 7k 22k 470k 100 220k 0 47 10k 100 47k 47k 47k MC2836 T112 1 2 2 3P 0 1 0 1 3P 22k 0 047 4 7k 4 7k 0 0 0 1 EARTH TERMINAL 0 47 0 47 220k D5SBA20 4003 3P 1...

Page 33: ...5 H 3 Q666 H 3 Q667 H 4 Q668 H 4 Q669 G 3 Q670 G 3 Q671 G 4 Q672 G 4 Q701 C 4 Q702 C 3 Q703 C 3 Q704 B 4 Q705 C 3 Q706 C 3 Q707 B 3 IC701 IC703 E E E E E E E E E E E E E E E E E E E 1 27 2 26 E DISC 1 DISC 2 DISC 3 CD MECHANISM DECK Z DISC SKIP EX CHANGER VOLUME EQ DSGX PLAY MODE TUNING MODE STOP m M TUNING FUNCTION TUNER BAND CD STANDBY DISPLAY BACK LIGHT LIQUID CRYSTAL DISPLAY u 1 A MAIN BOARD C...

Page 34: ...706 SW704 SW703 SW702 SW720 SW708 SW716 SW715 SW714 SW713 SW712 SW711 R781 LED702 R687 Q671 Q669 Q667 Q665 Q662 Q664 CNS671 R728 SW700 W701 C727 LCD702 IC701 Q704 MC2836 1k 1k 1k 1k 1k 1k 1k 1k 4 7k 1k 1k 4 7k 1k 4 7k 4 7k 2 2k 2 2k 1k 10k 22k 47k 100k 470 1k 1k 1k 47k 47k 47k 1k 1k 1k 470 1k 1k 1k 10k 10k 10k 1k 220k 1k 1k 10k 10k 10k 2 2k 100 470 470 470 470 470 470 470 470 47k 47k 47k 47k 47k 2...

Page 35: ...Semiconductor Location Ref No Location D201 C 10 D207 D 11 D208 D 10 D361 C 5 IC201 D 10 IC301 C 3 Q201 D 12 Q203 D 12 Q207 D 11 Q301 C 5 Q302 C 5 Q361 D 1 Q366 D 5 Q367 C 5 IC301 IC201 B MAIN BOARD CNP302 Page 27 C MAIN BOARD CNP301 Page 27 E E E E E E E E D MAIN BOARD WH201 Page 27 1 A B C D E 2 3 4 5 6 7 8 9 10 11 12 13 ...

Page 36: ... R337 R329 R331 C319 C320 WH303 CNP201 CNP202 CLP202 Q203 Q207 R362 R387 10k 100k 10k 2 2k 470k 1k 1 50 1 50 1k 0 22 3W 0 22 3W 100 25V 47k 4 7k 1 4W 4 7k 1 4W 4 7k 1 4W 4 7k 1 4W 4 7k 1 4W 100 47k 22 50V 47k 1k 0 22 50V 22k 220 JR JW 0 220p 10p 0 0 0 0047 220p 5P 5P 0 01 0 01 STK404 130S 0 047 10k 10k 220 4 7k 10k 2 2k 10 10 10 10 MC2838 T112 1 4 7k 1 4W 47 50V 0 1 50V 0 1 50V 100 100V 220 2SA202...

Page 37: ...1 RY001 C051 C054 C055 PT002 WH151 L001 D052 D051 R051 1P TERMINAL 1P TERMINAL 4 7k 0 1 50V WIRE EARTH GND 0 1 25V AC POWER RELAY 0 1 50V 0 47 25V 0 47 25V 8P MC2836 T112 1 MC2836 T112 1 4 7k POWER TRANSFORMER SUB POWER TRANSFORMER MAIN 1 8 NOT REPLACEABLE BULT IN TRANSFORMER AC IN E MAIN BOARD CNP151 Page 27 1 A B C D E F G 2 3 4 5 6 7 8 Semiconductor Location Ref No Location D051 E 5 D052 E 5 ...

Page 38: ...3 SW INTERFACE Waveforms BD83S Board 1 IC801 w XOUT 13 3 µs 1 8 Vp p 5 V DIV 10 µs DIV 1 IC701 qd X0A P90 30 5 µs 2 3 Vp p 1 V DIV 10 µs DIV 2 IC701 od X0 239 ns 2 9 Vp p 1 V DIV 100 ns DIV PANEL Board 200 mV DIV 500 ns DIV 1 V DIV 20 ns DIV 1 V DIV 10 µs DIV 1 V DIV 200 ns DIV 0 5 to 1 3 Vp p 59 1 ns 3 3 Vp p 22 7 µs 3 3 Vp p 472 ns 3 4 Vp p 1 IC201 u RFACO CD PLAY mode 2 IC201 z XTAO CD PLAY mod...

Page 39: ...CE DIVIDER UNLOCK DETECTOR SWALLOW COUNTER POWER ON RESET DATA SHIFT REGISTER LATCH PHASE DETECTOE CHARGE PUMP UNIVERSAL COUNTER 5 AM MIX 7 AMIF IN 8 FMIF IN 9 P DET 10 P COMP 11 FM DET 12 L OUT 13 R OUT 14 VSS FM RF 36 FM RF IN 35 GND2 34 FMRF OUT 33 VCC2 30 BO2 29 BO1 32 FM OSC 31 AM OSC 28 A OUT 27 A IN 23 DET OUT 15 CE 16 DI 17 CL 18 DO 22 MPX IN 19 XIN 20 XOUT 21 VDD 26 PD 25 AGC 24 AM LOW CU...

Page 40: ...2 LI 13 STBY 14 RI 15 RI SUB BIAS CIRCUIT IC401 BD3881FV 28 REC1O 27 REC1N 26 REC2N 25 REC2O 24 INC2 23 INC1 22 INB2 21 INB1 20 INA2 19 INA1 18 OUT1 17 BAS1 16 OUT2 15 BAS2 BASS BASS 13 CONT 14 VEE 12 VDD 11 TRE2 10 TRE1 TREBLE TREBLE 7 VOLIN1 8 VOLIN2 9 GND VOLUME VOLUME 6 PB1O LOGIC CONTROL 5 PB2O 4 PB2N 1 PB1N 2 PB1P 3 PB2P MAIN Board ...

Page 41: ...terminal 1 8V 18 SVSS Ground terminal 19 SVDD Power supply terminal 1 8V 20 SENS O Internal status SENSE signal output to the system controller 21 WFCK O WFCK output Not used 22 XUGF O XUGF output Not used 23 XPCK O XPCK output Not used 24 GFS O GFP output Not used 25 C2PO O C2PO output Not used 26 SCOR O Subcode sync S0 S1 detection signal output to the system controller 27 VDD Power supply termi...

Page 42: ...ical pick up block laser diode 68 RFC I Equalizer cut off frequency adjustment terminal 69 AVSS4 Ground terminal 70 RFACO O EFM signal output terminal 71 RFACI I EFM signal input terminal 72 AVDD3 Power supply terminal 3 3V 73 BIAS I Asymmetry circuit constant current input terminal 74 ASYI I Playback EFM asymmetry comparator voltage input terminal 75 ASYO O Playback EFM full swing output terminal...

Page 43: ...supply terminal 1 8V 106 PLLVSS Ground terminal 107 XVSS Ground terminal 108 XTAO O System clock output terminal 16 9344 MHz 109 XTAI I System clock input terminal 16 9344 MHz 110 XVDD Power supply terminal 1 8V 111 AVDD1 Power supply terminal 3 3V 112 AOUT1 O L ch analog audio signal output terminal 113 VREFL O L ch reference voltage output terminal 114 AVSS1 Ground terminal 115 AVSS2 Ground term...

Page 44: ...22 P45 LED5 TOT0 O Loading motor control signal output 23 P46 LED6 TOT1 O Elevator up down motor control signal output 24 P47 LED7 TOT2 O Elevator up down motor control signal output 25 P50 TIN0 I CD chuck switch SW7 input terminal 26 P51 TIN1 I CD close switch SW6 input terminal 27 P52 TIN2 PPG0 I CD stock switch SW5 input terminal 28 P53 PPG1 I CD open switch SW8 input terminal 29 P54 SI0 I Inte...

Page 45: ...he tuner 57 V2 P82 O Data output to the tuner 58 V3 I Reference power terminal of LCD controller driver 59 60 COM0 COM1 O Common signal output to the LCD 61 62 P83 COM2 P84 COM3 O Common signal output to the LCD 63 64 SEG0 SEG1 O Segment signal output to the LCD 65 VCC Power supply terminal 3 3V 66 VSS Ground terminal 67 to 84 SEG2 to SEG19 O Segment signal output to the LCD 85 to 89 SEG20 P10 to ...

Page 46: ...d views are not supplied Abbreviation CND Canadian model Ref No Part No Description Remark 1 3 254 143 11 SCREW B3 BV TAPPING 2 2 649 129 11 PANEL SIDE L CND 2 2 649 129 21 PANEL SIDE L US 3 3 363 099 32 SCREW CASE 3 TP2 4 2 670 840 01 CABINET REAR US 4 2 670 840 11 CABINET REAR CND 7 1 OVERALL SECTION The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace o...

Page 47: ...NET FRONT US 56 2 649 118 41 CABINET FRONT CND 57 4 225 252 01 CUSHION FOOT 58 2 649 122 11 BUTTON OPE 7 2 FRONT PANEL SECTION 59 2 649 120 01 REFLECTOR POWER 60 2 649 648 01 BUTTON DSGX 61 2 649 123 01 BUTTON EQ 62 A 1171 063 A JACK BOARD COMPLETE 63 2 649 124 01 BUTTON DISC 64 1 824 048 11 WIRE FLAT TYPE 27 CORE 65 A 1171 060 A PANEL BOARD COMPLETE 58 51 53 55 52 56 62 52 54 63 57 57 52 64 59 61...

Page 48: ...PT AC BOARD COMPLETE 109 3 905 609 31 SCREW TRANSISTOR 110 A 1171 064 A TRANSISTOR BOARD COMPLETE 111 X 2108 703 1 HEAT SINK ASSY 320W U 112 A 1171 070 A HIGH AMP BOARD COMPLETE 113 A 1171 071 A LOW AMP BOARD COMPLETE 0114 1 790 757 51 CORD POWER 115 3 701 748 00 CLAMP 0PT001 1 443 962 11 TRANSFORMER POWER 2 7 685 661 14 SCREW BVTP 4X12 TYPE2 IT 3 4 7 685 645 11 SCREW BVTP 3X6 TYPE2 IT 3 101 102 1...

Page 49: ...SCREW 2 6X10 PWH 155 3 047 468 01 DAMPER 156 2 649 131 01 BOX CASSETTE 157 2 649 152 02 SPRING CASS 158 2 649 128 31 PANEL TOP US 158 2 649 128 41 PANEL TOP CND 159 1 797 575 21 DECK MECHANICAL 160 2 688 622 01 BELT MAIN 161 2 688 621 01 BELT R F 162 3 701 748 00 CLAMP 163 4 951 620 01 SCREW 2 6X8 BVTP 3 7 685 850 04 SCREW BVTT 2X3 S 163 160 162 161 151 152 155 159 158 157 154 156 153 3 not suppli...

Page 50: ... A 4735 357 A OP BASE ASSY KSM 213DHAP ZRP1 206 1 832 404 21 CABLE FLEXIBLE FLAT 16 CORE 207 1 797 193 12 MECHANICAL CD 206 201 204 203 210 S201 205 204 211 211 212 203 209 202 202 204 203 202 202 204 203 208 207 not supplied not supplied not supplied not supplied 208 2 632 062 01 BELT DLM3A 209 2 681 036 01 COVER CD MECHA 210 3 254 143 11 SCREW B3 BV TAPPING 211 2 633 134 01 SCREW B2 6 BV TAPPING...

Page 51: ...1 164 360 11 CERAMIC CHIP 0 1uF 16V C224 1 164 360 11 CERAMIC CHIP 0 1uF 16V C226 1 165 908 11 CERAMIC CHIP 1uF 10 10V C227 1 165 908 11 CERAMIC CHIP 1uF 10 10V C230 1 162 927 11 CERAMIC CHIP 100PF 5 50V C232 1 164 360 11 CERAMIC CHIP 0 1uF 16V C251 1 164 315 11 CERAMIC CHIP 470PF 5 50V C252 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C253 1 164 315 11 CERAMIC CHIP 470PF 5 50V C254 1 162 968 11 CERA...

Page 52: ...HIP 0 R423 1 216 833 11 METAL CHIP 10K 5 1 10W R451 1 216 837 11 METAL CHIP 22K 5 1 10W R452 1 216 833 11 METAL CHIP 10K 5 1 10W VIBRATOR X201 1 795 101 21 VIBRATOR CERAMIC 16 9344MHz A 1171 070 A HIGH AMP BOARD COMPLETE CAPACITOR C305 1 164 315 11 CERAMIC CHIP 470PF 5 50V C306 1 164 315 11 CERAMIC CHIP 470PF 5 50V C307 1 126 960 11 ELECT 1uF 20 50V C308 1 126 960 11 ELECT 1uF 20 50V C309 1 126 96...

Page 53: ...TOR PWB 8P JACK J102 1 815 629 11 JACK PHONES J105 1 566 822 51 JACK AUDIO IN COIL L103 1 469 152 11 FERRITE EMI SMD 2012 L104 1 469 152 11 FERRITE EMI SMD 2012 L105 1 216 295 91 SHORT CHIP 0 L106 1 216 295 91 SHORT CHIP 0 RESISTOR R119 1 216 818 11 METAL CHIP 470 5 1 10W R120 1 216 818 11 METAL CHIP 470 5 1 10W R151 1 216 829 11 METAL CHIP 4 7K 5 1 10W R152 1 216 829 11 METAL CHIP 4 7K 5 1 10W R1...

Page 54: ...91 CERAMIC CHIP 0 1uF 50V C183 1 165 621 91 CERAMIC CHIP 0 1uF 50V C184 1 165 621 91 CERAMIC CHIP 0 1uF 50V C191 1 126 923 91 ELECT 220uF 20 10V C192 1 100 566 91 CERAMIC CHIP 0 1uF 10 25V C193 1 100 566 91 CERAMIC CHIP 0 1uF 10 25V C194 1 100 566 91 CERAMIC CHIP 0 1uF 10 25V C195 1 100 566 91 CERAMIC CHIP 0 1uF 10 25V C196 1 100 566 91 CERAMIC CHIP 0 1uF 10 25V C197 1 126 925 91 ELECT 470uF 20 10...

Page 55: ...PF 5 50V C829 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C830 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C831 1 117 863 11 CERAMIC CHIP 0 47uF 10 6 3V C832 1 117 863 11 CERAMIC CHIP 0 47uF 10 6 3V C833 1 117 863 11 CERAMIC CHIP 0 47uF 10 6 3V C834 1 126 923 91 ELECT 220uF 20 10V C835 1 115 467 11 CERAMIC CHIP 0 22uF 10 10V C836 1 115 467 11 CERAMIC CHIP 0 22uF 10 10V C838 1 100 566 91 CERAMIC CHIP 0 1uF...

Page 56: ...LF RESISTOR R101 1 216 825 11 METAL CHIP 2 2K 5 1 10W R102 1 249 425 11 CARBON 4 7K 5 1 4W R103 1 216 841 11 METAL CHIP 47K 5 1 10W R104 1 216 841 11 METAL CHIP 47K 5 1 10W R105 1 216 841 11 METAL CHIP 47K 5 1 10W R106 1 216 837 11 METAL CHIP 22K 5 1 10W R107 1 216 837 11 METAL CHIP 22K 5 1 10W R108 1 216 833 11 METAL CHIP 10K 5 1 10W R109 1 216 789 11 METAL CHIP 2 2 5 1 10W R110 1 216 789 11 META...

Page 57: ...1 CARBON 4 7K 5 1 4W R260 1 249 425 11 CARBON 4 7K 5 1 4W R261 1 216 829 11 METAL CHIP 4 7K 5 1 10W R262 1 216 829 11 METAL CHIP 4 7K 5 1 10W R265 1 216 801 11 METAL CHIP 22 5 1 10W R266 1 216 801 11 METAL CHIP 22 5 1 10W R267 1 216 845 11 METAL CHIP 100K 5 1 10W R268 1 216 845 11 METAL CHIP 100K 5 1 10W R301 1 216 833 11 METAL CHIP 10K 5 1 10W R302 1 216 833 11 METAL CHIP 10K 5 1 10W R303 1 216 8...

Page 58: ... 1 10W R806 1 216 864 11 SHORT CHIP 0 R807 1 216 845 11 METAL CHIP 100K 5 1 10W R808 1 216 833 11 METAL CHIP 10K 5 1 10W R809 1 216 821 11 METAL CHIP 1K 5 1 10W R811 1 216 829 11 METAL CHIP 4 7K 5 1 10W R812 1 216 817 11 METAL CHIP 470 5 1 10W R813 1 216 833 11 METAL CHIP 10K 5 1 10W R814 1 216 809 11 METAL CHIP 100 5 1 10W R815 1 216 829 11 METAL CHIP 4 7K 5 1 10W R816 1 216 833 11 METAL CHIP 10K...

Page 59: ...C CHIP 0 001uF 10 50V C731 1 164 156 11 CERAMIC CHIP 0 1uF 25V C732 1 162 919 11 CERAMIC CHIP 22PF 5 50V C733 1 162 919 11 CERAMIC CHIP 22PF 5 50V C734 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C735 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C737 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C738 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C739 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C741 1 162 960 11 CERAM...

Page 60: ... CHIP 22K 5 1 10W R712 1 216 829 11 METAL CHIP 4 7K 5 1 10W R713 1 216 833 11 METAL CHIP 10K 5 1 10W R714 1 216 833 11 METAL CHIP 10K 5 1 10W R715 1 216 821 11 METAL CHIP 1K 5 1 10W R716 1 216 821 11 METAL CHIP 1K 5 1 10W R717 1 216 821 11 METAL CHIP 1K 5 1 10W R718 1 216 821 11 METAL CHIP 1K 5 1 10W R719 1 216 821 11 METAL CHIP 1K 5 1 10W R721 1 216 817 11 METAL CHIP 470 5 1 10W R722 1 216 849 11...

Page 61: ...WITCH KEYBOARD PLAY MODE TUNING MODE VIBRATOR X701 1 760 252 12 VIBRATOR CRYSTAL 32768Hz X702 1 795 054 51 VIBRATOR CERAMIC 4 19MHz A 1171 072 A PT AC BOARD COMPLETE CAPACITOR 0C051 1 165 621 91 CERAMIC CHIP 0 1uF 50V C052 1 164 156 11 CERAMIC CHIP 0 1uF 25V C053 1 165 621 91 CERAMIC CHIP 0 1uF 50V C054 1 164 005 11 CERAMIC CHIP 0 47uF 25V C055 1 164 005 11 CERAMIC CHIP 0 47uF 25V DIODE D051 6 500...

Page 62: ...u to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2006 02 New 1 1 2006 03 Parts number changed for BELT MAIN and BELT R F ENG 06002 ...

Search results

Summary of Contents for HCD-EC70 (MHC-EC70 Mini Hi-Fi System)

Reviews:

Brands by name

Popular brands

Sony HCD-EC70 (MHC-EC70 Mini Hi-Fi System), Service Manual

Search results

Summary of Contents for HCD-EC70 (MHC-EC70 Mini Hi-Fi System)

Reviews:

Brands by name

Popular brands