Technics SA-EH790E Скачать руководство пользователя

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SH-EH790(E) MAIN CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM-4

IC301
M5218AP

BUFFER AMP

IC302
NJM4558MTE1

BUFFER AMP

Q313,314
2SD2144STA

ATTENUATOR

C305
100P

R315
270K

C307

10P

C303

50V4.7

C310

0.01

C306
100P

R316
270K

C308

10P

C309

0.01

C304

50V4.7

R314

3.9K

R310

560

R308

R307

R309

560

R313

3.9K

R306

R305

R304

22K

R303

22K

C301

50V4.7

C302

50V4.7

Q301,302
2SD2144STA

MUTING

Q301

Q302

Q303

Q304

Q303,304
2SD2144STA

ATTENUATOR

R349

12K

R352

10K

D301

MA700ATA

R353

220K

C329

16V22

R348

2.2K

R325

R327

560

C313

16V10

C315
100P

C317

5600P

R329
560K

R335

R336

R338

470

R322

8.2K

R334

56K

R323

R324

R326

C328

16V22

R328

560

C314

16V10

C316
100P

R330
100K

C318

47P

R332

2.2K

C320

16V10

R350

10K

C327

0.033

D302

MA165TA

R351

220K

C323

0.01

C324

0.01

R319
150K

C312

16V22

R318

100

Q306
UN411FTA

ATTENUATOR CONT.

Q305
UN411FTA

MUTING CONT.

C31

16V10

R317

22K

R312

1.8K

Q309

Q310

Q307

Q308

Q307,308
2SD2144STA

ATTENUATOR

R354

3.3K

R347

R345

R346

Q313

Q314

Q309,310
2SD2144STA

ATTENUATOR

L301

3.3

R311

22K

MAIN CIRCUIT

R331

2.2K

C319

16V10

R337

390

L302

3.3

C321

16V10

R372

R333

56K

C322

16V10

R374

R866

22K

IC303
NJM4558MTE1

BUFFER AMP

C345
100P

R365
180K

C347

22P

C343

16V10

R361

6.8K

R359

820

R360

820

R363

R364

C346
100P

R366
180K

C348

22P

C352

0.01

C344

16V10

R362

6.8K

Q315

Q316

Q315,316
2SD2144STA

ATTENUATOR

R368

470

R367

470

R357

22K

R358

22K

R504
120K

C502
330P

R503

1.2K

C503
100P

Q502
UN411FTA

ATTENUATOR CONT.

R502

R509

2.2K

R514

100

C510

16V22

Q501
UN411FTA

MUTING CONT.

IC501
NJM4558MTE1

BUFFER AMP

R517

820

R513

R515

22K

C511

16V10

C504

100P

R508

100K

R506

2.7K

C508

16V10

C501

0.01

C506

16V33

R505

R510

100K

R511

C507

50V0.47

R512
150K

C512

16V33

Q505
2SD2144STA

ATTENUATOR

Q503,504
2SD2144STA

MUTING

Q503

Q504

C505

0.01

C351

0.01

R773

Q764
2SB621ARSTA

REGULATOR

C765

0.01

D763

MA165TA

R769

1.2K

D764

MA165TA

C771

0.01

C766

16V10

Q765,767
2SC3311ATA

STABILIZER

Q765

R767

D767

MA4051MT

C768

16V10

Q767

R768

1.2K

D765

MA165TA

D766

MA165TA

C772

0.01

C767

0.01

D762

RL1N4003N02

C753

0.01

R761

2.2

R762

2.2

C761

0.01

Q761,762
2SD2137PQTA

REGULATOR

C763

0.01

R765

220

C764

10V220

R764

820

D761

MA4082LTA

C762

0.01

Q763
2SD592AQRSTA

REGULATOR

R766

1.8K

D304

MA719TA

C354

16V10

D305

MA719TA

C349

16V10

C350

16V10

R507

C509

16V22

D771

MA4051L

Q506
UN411FTA

ATTENUATOR CONT.

R518

2.2K

Q507
2SD2144STA

ATTENUATOR

D772

MA165T

R774

220

C774

16V220

R716

820

C773

10V220

Q761

Q762

Q766
2SA1309ATA

REGULATOR

C356

16V10

R772

1.2K

R501

1.5K

R520

1.2K

L502

D203

MA165TA

D204

MA719TA

R519
150K

:NEGATIVE VOLTAGE LINE

:POSITIVE VOLTAGE LINE

:CD PLAYBACK SIGNAL LINE

0.6V

9.4V

-10.4V

9.4V

-10.4V

0.6V

1.2V

1.3V

1.1V

0.9V

10.4V

9.4V

5.1V

9.4V

-10.4V

0.7V

1.8V

9.4V

-10.4V

9.4V

10.2V

9.4V

7.2V

10V

7.8V

7.2V

10.2V

7.8V

5.1V

5.4V

4.4V

5.4V

5.1V

5.4V

4.4V

0.6V

1.1V

0.9V

-6.5V

-7.3V

-10.4V

Содержание SA-EH790E

Страница 1: ...mplifier SA EH790E SA EH790EB SA EH790EG SA EH790EP Colour S Silver Type System SC EH790 Because of unique interconnecting cables when a compact requires service send or bring in the entire system SPE...

Страница 2: ...0 W PMPO 1 kHz High 6 Low 8 CENT 8 SURR 8 3000 W Total harmonic distortion Rated power at 1 kHz 1 6 Half power at 1 kHz 0 1 6 Load impedance FRONT High 6 FRONT Low 8 SURROUND 8 CENTER 8 DIGITAL S WOOF...

Страница 3: ...nger SL EH790 Tuner Amplifier SA EH790 Cassette Deck RS DV290 Speakers Front SB DV290 Center SB PC95 Surround SB PS95 Made in MAES 2003 Matsushita Electric Industrial Co Ltd All rights reserved Unauth...

Страница 4: ...tive and negative speaker connection wires are shorted or if speaker systems with an impedance less than the indicated rated impedance of this unit are used If this occurs follow the procedures outlin...

Страница 5: ...Remote control EUR7702270 1 pc Remote control batteries R6 LR6 AA UM 3 1 pc Note These are available on sales route FM indoor antenna RSA0007 1 pc AM loop antenna set RSA0022 L 1 pc Speaker leads 5...

Страница 6: ...REE1234 1 2 pc Red Black REE1233 1 2 pc Gray Blue Antenna plug adaptor for EB area SJP9009 1 pc 4 Caution for AC Mains Lead 6...

Страница 7: ...t Procedures This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components For reassembly after operation checks or replacement rev...

Страница 8: ...described only when required 6 1 Checking for the AC IN P C B Check the AC IN P C B as shown below 6 2 Checking for the operation P C B Follow the Step 1 Step 3 of item 6 1 8...

Страница 9: ...Check the operation P C B as shown below 6 3 Checking for the main P C B Follow the Step 1 Step 3 of item 6 1 9...

Страница 10: ...10...

Страница 11: ...Check the main P C B as shown below 6 4 Replacement for the regulator transistor Follow the Step 1 Step 3 of item 6 1 11...

Страница 12: ...ep 1 Step 3 of item 6 1 Follow the Step 1 Step 6 of item 6 2 Follow the Step 1 Step 10 of item 6 3 7 To Supply Power Source This unit is designed to operate on power supplied from system connected For...

Страница 13: ...onnect this unit to an AC power supply cord This unit come to stand by mode 3 Turn the unit ON Fig 7 2 Notes Use only this method when checking the voltage etc In case of checking the operations use t...

Страница 14: ...displays on the tuner amplifier when a malfunction occurs Refer to Fig 8 1 Fig 8 1 8 2 To return to the normal display 1 For U70 CD U70 DECK Press an any operation button on the tuner amplifier To re...

Страница 15: ...em from operating If U70 is displayed on the tuner amplifier the tape deck or CD Changer cannot be operated by remote control Correction Procedure 1 To check for correct insertion of flat cables Inser...

Страница 16: ...fier SA EH790 output IC IC601 When a DC voltage is applied to speaker terminals 9 Schematic Diagram Notes This schematic diagram may be modified at any time with the development of new technology Note...

Страница 17: ...ircuit tester high impedance with the chassis taken as standard Therefore there may exist some errors in the voltage values depending on theinternalimpedance of the DC circuit tester No mark Power ON...

Страница 18: ...ng repair Cover the parts boxes made of plastics with aluminum foil Ground the soldering iron Put a conductive mat on the work table Do not touch the legs of IC or LSI with the fingers directly 10 Sch...

Страница 19: ...12 RESET I Reset signal input 13 X IN I Oscillator connected terminal 32 7 kHz 14 X OUT O 15 VSS GND terminal 16 XC IN I Oscillator connected terminal 6 MHz 17 XC OUT O 18 VDD 1 I Power supply termina...

Страница 20: ...79 REGIN0 Not used connected to GND 80 REGIN1 81 STANDBY O LED STANDBY drive signal output 82 TIMER O LED TIMER drive signal output 83 S W LED O LED DIGITAL S WOOFER drive signal output 84 LOUNGE LED...

Страница 21: ...rtant for safety Furthermore special parts which have purposes of fire retardant resistors high quality sound capacitors low noise resistors etc are used Whenreplacingany of components be sure to use...

Страница 22: ...1 J0KD00000028 19 RMN0582 HOLDER 1 20 XTB3 12FFZ SCREW 1 21 XTB3 20JFZ SCREW 1 22 REM0115 FAN 1 23 RGN2394 K NAME PLATE 1 EB 23 RGN2396 K NAME PLATE 1 EP 24 RMN0526 FL HOLDER 1 25 REZ1300 WIRE ASS Y 1...

Страница 23: ...30001 C601 02 ECA1CAK100XB 16V 10U 2 C603 04 ECBT1H471KB3 50V 470P 2 C605 06 ECBT1H102KB3 50V 1000P 2 C607 08 ECBT1H471KB3 50V 470P 2 C609 10 ECBT1H560J3 50V 56P 2 C611 12 ECBT1H150JC3 50V 15P 2 C613...

Страница 24: ...470BG 10V 47U 1 F2A1A470A011 C761 ECQE1104KF3 100V 0 1U 1 C791 ECKWRS102MBC 250V 1000P 1 C901 EEAFC0J101B 6 3V 100U 1 C902 F2A1A102A018 10V 1000U 1 C903 04 ECBT1H103KB5 50V 0 01U 2 F1E1H1030001 C905 E...

Страница 25: ...M DIODE 1 MAZ41500M D725 MA4082LTA DIODE 1 MAZ40820LF D730 MA4091H DIODE 1 MAZ40910H D737 MA4082LTA DIODE 1 MAZ40820LF D738 40 MA165TA5 DIODE 3 MA2C16500E D741 44 B0AAMM000009 DIODE 4 D745 MA4051M DIO...

Страница 26: ...IC201 C0JBAR000292 IC 1 26...

Страница 27: ...P4 RPN1194 PAD SA 1 P4 RPN1195 2 PAD RS 1 P4 RPN1196 PAD SH 1 P4 RPN1197 PAD SL 1 P5 RPF0139 1 PROTECTION BAG 1 P6 SPP740 1 SHEET 4 PCB1 REP3337H M PCB ASS Y 1 RTL PCB2 REP3338A S PCB ASS Y 1 RTL E E...

Страница 28: ...Q711 2SB1548PQAU TRANSISTOR 1 2SB15480J1AU 28...

Страница 29: ...222 1 4W 2 2K 1 R559 ERDS2FJ472 1 4W 4 7K 1 R560 61 ERDS2FJ104 1 4W 100K 2 R563 64 ERDS2TJ272T 1 4W 2 7K 2 R566 ERDS2FJ683 1 4W 68K 1 R567 ERG1SJ220 1W 22 1 R568 ERDS2FJ101 1 4W 100 1 R569 ERDS2FJ103...

Страница 30: ...DS2TJ392 1 4W 3 9K 1 R739 ERDS2FJ473 1 4W 47K 1 R749 ERDS2FJ102 1 4W 1K 1 R763 ERDS2FJ472 1 4W 4 7K 1 R764 ERDS2FJ331 1 4W 330 1 R765 ERDS1FJ221 1 2W 220 1 R767 ERG1SJ270 1W 27 1 R768 ERDS2FJ101 1 4W...

Страница 31: ...R951 ERDS2FJ334 1 4W 330K 1 R952 ERDS2TJ106T 1 4W 10M 1 R953 ERDS2FJ101 1 4W 100 1 R954 ERDS2FJ104 1 4W 100K 1 R956 58 ERDS2FJ102 1 4W 1K 3 R959 ERDS2FJ470 1 4W 47 1 R960 ERDS2FJ152 1 4W 1 5K 1 R961...

Страница 32: ...iption Pcs Remarks X901 EF0EC6004T4 OSCILLATOR 1 EFOEC6004T4 X902 RSXD32K7S02 OSCILLATOR 1 H0A327200027 Z120 RAN0005EM 2 TUNER UNIT 1 Z701 ENC471D5A ZNR 1 J0LG00000008 Z901 B3RAD0000028 REMOTE SENSOR...

Страница 33: ...18 Packaging 19 Schematic Diagram for printing with letter size K0304YH HM 33...

Страница 34: ...2 3 4 5 6 7 8 R B S G H I J T A C201 330P R204 2 2K R203 2 2K DVD 6ch INPUT D201 MA4056MTA R219 390 A M N R214 2 2K R250 2 2K R213 2 2K R249 2 2K K L R258 5 6K R256 4 7K V U R253 0 R255 4 7K R257 5 6...

Страница 35: ...857 0 1 R881 100 C856 50V4 7 R852 1K R851 1K C855 50V4 7 R859 10K C860 2200P C866 50V1 R864 560 C884 2200P C865 1 C872 2200P C881 50V1 C883 6 3V47 R876 270 C887 6 3V47 C886 6 3V100 C878 0 01 R871 270...

Страница 36: ...358 22K R504 120K C502 330P R503 1 2K 1 2 3 4 5 6 7 8 C503 100P Q502 UN411FTA ATTENUATOR CONT R502 1K R509 2 2K R514 100 C510 16V22 Q501 UN411FTA MUTING CONT IC501 NJM4558MTE1 BUFFER AMP C D G R517 82...

Страница 37: ...ND TAPE Rch OUT TAPE Lch OUT CD Rch IN A GND CD Lch IN NC NC CN202 CN201 TUNER Lch C TUNER Rch A GND Lch OUT Rch OUT B 10V SUR L S W MIC B 10V V GND D GND CS REQ CLK DATA CT GND SH FL1 SH FL2 SYNC SUR...

Страница 38: ...1K C625 6 3V100 R664 330 R663 330 C616 35V33 R686 0 C604 1000P C605 35V33 MA165TA MA165TA g C626 0 047 IC602 M62457AFPE1 SPEANA AMP 1 2 13 3 4 5 6 7 8 9 10 11 12 2 1 3 4 5 6 7 8 FW602B DSP DIO SP INPU...

Страница 39: ...1K C625 6 3V100 R664 330 R663 330 C616 35V33 R686 0 C604 1000P C605 35V33 MA165TA MA165TA g C626 0 047 IC602 M62457AFPE1 SPEANA AMP 1 2 13 3 4 5 6 7 8 9 10 11 12 2 1 3 4 5 6 7 8 FW602B DSP DIO SP INPU...

Страница 40: ...2 3 4 5 6 7 8 R B S G H I J T A C201 330P R204 2 2K R203 2 2K DVD 6ch INPUT D201 MA4056MTA R219 390 A M N R214 2 2K R250 2 2K R213 2 2K R249 2 2K K L R258 5 6K R256 4 7K V U R253 0 R255 4 7K R257 5 6...

Страница 41: ...2 3 4 5 6 7 8 R B S G H I J T A C201 330P R204 2 2K R203 2 2K DVD 6ch INPUT D201 MA4056MTA R219 390 A M N R214 2 2K R250 2 2K R213 2 2K R249 2 2K K L R258 5 6K R256 4 7K V U R253 0 R255 4 7K R257 5 6...

Страница 42: ...857 0 1 R881 100 C856 50V4 7 R852 1K R851 1K C855 50V4 7 R859 10K C860 2200P C866 50V1 R864 560 C884 2200P C865 1 C872 2200P C881 50V1 C883 6 3V47 R876 270 C887 6 3V47 C886 6 3V100 C878 0 01 R871 270...

Страница 43: ...857 0 1 R881 100 C856 50V4 7 R852 1K R851 1K C855 50V4 7 R859 10K C860 2200P C866 50V1 R864 560 C884 2200P C865 1 C872 2200P C881 50V1 C883 6 3V47 R876 270 C887 6 3V47 C886 6 3V100 C878 0 01 R871 270...

Страница 44: ...358 22K R504 120K C502 330P R503 1 2K 1 2 3 4 5 6 7 8 C503 100P Q502 UN411FTA ATTENUATOR CONT R502 1K R509 2 2K R514 100 C510 16V22 Q501 UN411FTA MUTING CONT IC501 NJM4558MTE1 BUFFER AMP C D G R517 82...

Страница 45: ...358 22K R504 120K C502 330P R503 1 2K 1 2 3 4 5 6 7 8 C503 100P Q502 UN411FTA ATTENUATOR CONT R502 1K R509 2 2K R514 100 C510 16V22 Q501 UN411FTA MUTING CONT IC501 NJM4558MTE1 BUFFER AMP C D G R517 82...

Страница 46: ...ND TAPE Rch OUT TAPE Lch OUT CD Rch IN A GND CD Lch IN NC NC CN202 CN201 TUNER Lch C TUNER Rch A GND Lch OUT Rch OUT B 10V SUR L S W MIC B 10V V GND D GND CS REQ CLK DATA CT GND SH FL1 SH FL2 SYNC SUR...

Страница 47: ...ND TAPE Rch OUT TAPE Lch OUT CD Rch IN A GND CD Lch IN NC NC CN202 CN201 TUNER Lch C TUNER Rch A GND Lch OUT Rch OUT B 10V SUR L S W MIC B 10V V GND D GND CS REQ CLK DATA CT GND SH FL1 SH FL2 SYNC SUR...

Страница 48: ...2BBGF000434 C2HBZC000010 C2HBZC000008 100PIN 80PIN 100PIN 2SD2137PQTA 2SC3311ATA UN4211TA UN411FTA 2SB621ARSTA 2SD592AQRSTA 2SA1309ATA 2SC3940AQSTA 2SD2144STA UN5211TX LNJ301MPUJAD MA719TA MA165TA 1SS...

Страница 49: ...FW602B FW601B A FL P C B FW602A FW601A To CD CHANGER CASSETTE DECK To TUNER AMPLIFIER B MAIN P C B 1 8 1 8 1 13 1 13 AUX DVD VCR EXT SUBWOOFER OUT DVD 6ch INPUT...

Страница 50: ......

Страница 51: ...SHIFT REGISTER 2 29 3 28 4 27 5 26 7 24 8 23 14 16 17 ST CK DATA 9 22 6 25 X1 X2 ST CLK DA 1 30 B1 B4 15 VEE VDD VSS 12 19 11 20 10 21 X3 X4 AUX DVD VCR EXT IN OUT NJM4558MTE1 IC202 CCHMIC REC L MIC...

Страница 52: ...SRT R ch X X 8 10 AILT AIRT NJM4558MTE1 IC302 REC L GNDAC 14 VRL R 7 Q313 C OUT C2BBFD000246 IC401 SYSTEM CONTROL DACK 9 DSP ACK RESET 18 DSP RST DCS 7 DSP CS DCK 10 DSP CK DDO 11 DSPDIO DDI 12 B2 1 V...

Страница 53: ...Q504 Q503 Q501 MUT SB SUR L1 FL Q315 Q316 Q303 Q304 Q301 Q302 MUT F TU LIC SW2 SW1 ATT Q306 ATT1 SH SYNC BUFFER AMP BUFFER AMP BUFFER AMP MUTING MUTING MUTING CONT B1 D762 B2 Q765 Q764 B3 Q767 Q766 Q...

Страница 54: ...7 19 2 4 6 8 10 12 14 16 18 20 CN201 R239 C233 J J J J J J J J J J J J J R765 R716 R315 R764 R763 C773 C303 E C B Q762 E C B Q761 D761 C761 C305 C309 C753 C763 C307 L301 L302 B C E Q763 J J J J J J J...

Страница 55: ...1K C625 6 3V100 R664 330 R663 330 C616 35V33 R686 0 C604 1000P C605 35V33 MA165TA MA165TA g C626 0 047 IC602 M62457AFPE1 SPEANA AMP 1 2 13 3 4 5 6 7 8 9 10 11 12 2 1 3 4 5 6 7 8 FW602B DSP DIO SP INPU...

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