background image

17

MAIN BOARD (2)

OFF

ON

POWER AMP L/CH

MAIN-IN

ISC 

Low voltage regulator

POWER AMP R/CH

HS

hs

HS

HS

HS

hs

hs

HS

HS

HS

HS

hs

hs

hs

hs

70 deg: 330 ohm max.
80 deg: 470 ohm min.

L

R

HEADPHONE BOARD

SPEAKER OUT

R-CH OUT

R-CH GND

L-CH GND

L-CH OUT

C145

0.1U

R181

470

Q123

2SA1015

Q124
2SC1815

R180
220K

R182
100

R186
100

C144

10U16V

R187

100

D114
IN4148

Q132

MMBT5551

Q131
KSA1220

D110

18V

R183

33K

R184
1K1

R185
1K1

C146

10U

25V

R385

1K1

R384
1K1

C346

10U
25V

R383

33K

D310

18V

R382
100

Q324
2SA1015

Q323

2SC1815

R386
100

R387

100

C344

10U16V

R380
220K

R381

470

C345

0.1U

R188

22K

R193

560

R192

22K

C151

39P

R205

82

5%

MF

R200

120

R202

330

C153

330P

R198
22K

D115

IN4148

R203

100K

MF

C152

220U

63V

Q141

NZT560

Q140

NZT660

R218

3.3

0.5W

R226

3.3

0.5W

D122

5V1

D123

5V1

R234

10 FS

12

3

VR103

200

R232

511

R233

820

R231

10 FS

C169

560P

R237

56

R239

0.05
5W

R240

0.05
5W

Q147

NZT560

Q145 NJW0302G

E

C

B

Q151

NJW0281G

R243

56

C168

560P

C171

N.I.

L101 0.5uH

R250

10/1W FS

R255

3.3/1W

R254
680K

C172

0.1u 100V

C174

0.22u 63V

C173
0.01u

100V

R256
680K

C170

1000p

63V

C175

0.22u 63V

R257
1K

C176

N.I.

Q156
MMBT5551

Q155

KSC2690

R267

510

Q153

MMBT5551

Q154

KSC2690

R268

12

C181

0.1U

R269

2K2

R270

5K1

C182

0.1U

C184

47U
25V

R271

2K2

MF

D130
18V

R273

680

R274

680

C186
47U
25V

R275

680

C188

22P

Q122

KSC2690

Q121
MMBT5551

R276

4K7

C194
0.1U

D131

1N4148

R288

33 0.5W FS

R289 680

C190

220U 35V

R293

680

R292

680

C192

220U

50V

C193
220U

50V

R295

680

R291

33 0.5W FS

C191

220U 35V

R290 680

R294

680

Q119

KSA1220

Q120
MMBT5401

C189

22P

R277

680

C187
10U
25V

R272
2K
MF

C185

47U

25V

C183

0.1U

D330

1N4148

R475

100K

R473

100K

C376

10U
25V

C377

10U
25V

R466

10K

R474

2K2

R479
180K

12

3

VR304

50K

Q357

MMBT5551

D334

1N4148

R480
10K

R481
4.3K

R468

18K

R469

22K

R471
22K

R472
18K

D333
1N4148

D332

1N4148

R492

56K

R470

56K

1

2

3

4

5

J101A

5pin

1

2

3

4

5

J101B
5pin

D335 1N4148

R493

100
2W

R494
100
2W

R483

220 2W

R484

220 2W

1

2

RL301-A

3

4

RL301-B

5

6

RL301-C

R194

1K

Q128

MMBT5087

Q129

MMBT5210

Q127
MMBT5210

Q130

MMBT5087

Q133

MMBT5210

R199

22K

R204

10

R229
2M4

C160
100U

50V

C162
100U
16V

C161

100U

16V

Q148

MMBT5551

R238

22

Q150
KSA1220

Q146

KSC2690

R258 100

L102 N.I.

R260

1

R253

1K8

1%

R477

1K

R467
330K

D331

1N4148

R478

220K

Q134

N.I.

R207
N.I.

D117

N.I.

R208
N.I.

D118
N.I.

D119

N.I.

Q135

N.I.

R209

N.I.

C158

N.I.

U103
N.I.

R212
N.I.

R213

N.I.

R214
N.I.

R215

N.I.

R225
820

Q137

MMBT5210

Q136

MMBT5210

R222
330

R223

330

R221

2K2

R220

4.3K

Q138

MMBT5087

C159
100P

Q125
MMBT5087

Q126
MMBT5087

C149

15P

D124 IN4148

D125
IN4148

D126
IN4148

D127

IN4148

D120

1N4148

D121

1N4148

R224

75

R219
2K2

Q139

MMBT5087

C163

10U
16V

Q149

NZT660

D111

1N4148

R189
22K

R191
22K

C148

47U
35V

D116

10V

R201 27K

R195
1K

R196

1K8

C155
220U

35V

R197

2K2/2W

R263

1K 5%

R262

1K 5%

C177

10U
25V

C178

10U

25V

R464

1K

R465

1K

R462

1K 5%

R463

1K 5%

R241

15

R242

22K

R235 15

R236

22K

R228

270

0.5W

R216

270

0.5W

C157

220U
63V

Q144

KSC2690

Q142

KSA1220

Q152
MMBT5551

R248 36K D128

1N4148

R247
33K

R261

N.I.

R244
1K

R227

68

0.5W

R217

68

0.5W

C156

47U

25V

C154 N.I.

C147

47U
35V

R190

100

D112

1N4148

D113

1N4148

C150

10U 16V

R211

N.I.

C167
N.I.

C165

200p

C166
N.I.

C164
200p

R251

100

R252
36K

R249 3K6 D1291N4148

R246
470K

R259

68 1%

R459

68 1%

R446
470K

D3291N4148

R449 3K6

R452
36K

R451

100

C364
200p

C366

N.I.

C365

200p

C367
N.I.

R411

N.I.

C350

10U 16V

D313

1N4148

D312

1N4148

R390

100

C347

47U

35V

C354 N.I.

C356

47U
25V

R417

68

0.5W

R427

68

0.5W

R444
1K

R447
33K

D328 1N4148

R448 36K

Q352
MMBT5551

Q342

KSA1220

Q344
KSC2690

C357
220U
63V

R416

270

0.5W

R428

270

0.5W

R436

22K

R435

15

R442

22K

R441

15

R397

2K2/2W

C355

220U

35V

R396

1K8

R395
1K

R401 27K

D316
10V

C348

47U
35V

R391
22K

R389
22K

D311

1N4148

Q349

NZT660

C363
10U
16V

Q339

MMBT5087

R419 2K2

R424

75

D321

1N4148

D320

1N4148

D327

IN4148

D326
IN4148

D325

IN4148

D324

IN4148

C349
15P

Q326
MMBT5087

Q325
MMBT5087

C359
100P

Q338

MMBT5087

R420

4.3K

R421

2K2

R423

330

R422
330

Q336

MMBT5210

Q337

MMBT5210

R425

820

R415
N.I.

R414
N.I.

R413
N.I.

R412
N.I.

U303

N.I.

C358

N.I.

R409
N.I.

Q335

N.I.

D319

N.I.

D318
N.I.

R408
N.I.

D317

N.I.

R407
N.I.

Q334

N.I.

R453

1K8

1%

R460

1

L302 N.I.

R458 100

Q346

KSC2690

Q350

KSA1220

R438

22

Q348

MMBT5551

C361

100U

16V

C362
100U
16V

C360

100U

50V

R429

2M4

R404

10

R399

22K

Q333

MMBT5210

Q330

MMBT5087

Q327
MMBT5210

Q329

MMBT5210

Q328

MMBT5087

R394

1K

R457
1K

C375

0.22u 63V

C370

1000p

63V

R456
680K

C373
0.01u
100V

C374

0.22u 63V

C372

0.1u 100V

R454
680K

R455

3.3/1W

R450

10/1W FS

L301 0.5uH

C371

N.I.

C368
560P

R443
56

Q351

NJW0281G

Q345

NJW0302G

Q347

NZT560

R440

0.05
5W

R439
0.05

5W

R437

56

C369
560P

R431

10 FS

R433

820

R432

511

12

3

VR303

200

R434

10 FS

D323

5V1

D322

5V1

R426

3.3

0.5W

R418

3.3

0.5W

Q340

NZT660

Q341

NZT560

C352

220U
63V

R403

100K

MF

D315

IN4148

R398
22K

C353

330P

R402 330

R400

120

R405

82

5%

MF

C351

39P

R392

22K

R393

560

R388

22K

Q331

KSA1220

Q332

MMBT5551

D314

IN4148

R245

8M2

R445

8M2

1

2

3

4

5

7

8

M102

PHONE SOCKET

Q353
DTC123EKA

R485
47k

D304

GS1G

R486
47k

C381
0.1u

Q354
MMBT5401

R476

4K7

1

3

5

SW101-A

2

4

6

SW101-B

C180

10U
50V

C179

10U
50V

Q356

MMBT5551

R487
33k

R488
47k

D305

1N4148

Q355
MMBT5551

R489

33k

D303

1N4148

R490

3.3k

R491
33k

C380

1u

16V

R482

TO = 80 degree

1

2

3

5

6

U102-A
TL071

7

4

U102-B

TL071

1

2

3

5

6

U302-A
TL071

7

4

U302-B

TL071

1

2

3

5

6

U301-A

TL071

7

4

U301-B

TL071

D382

1N4148

1

2

3

M109-A

TP10

TP11

D133

1N4148

D132
GS1G

IN

GND

OUT

U104
7805

D135

5V1

3W

D134

5V1

3W

C197
100uF
16V

1

2

3

4

5

6

7

8

9

J601B

TO PSU J601A

1

2

J504B

TO KEYBOARD J504A

C501
100p

C502
100p

1

2

3

J505A

TO MAIN J505B

1

4

5

A

C

E

B

D

F

M501

MP JACK

J203

J204

J104

J103

C378

47u/25V

C379

47u/25V

1

2

TP1
2pin

1

2

TP2

2pin

1

2

TP3
2pin

1

2

TP4

2pin

R297

100

R299

100

C200

1n

C201

1n

R497

100

R499

100

C400

1n

C401

1n

C203

220P

C403
220P

D137

N.I.

D138

N.I.

R702

N.I.

D338

N.I.

D337

N.I.

R802

N.I.

C404
150p

C204
150p

C405
100P

C205
100P

C206

22n

R703

22

R803

22

C406

22n

C207

0.1u
63V

C208

0.1u
63V

C407
0.1u
63V

C408

0.1u
63V

C209

0.1u
250V

C409

0.1u

250V

R804 1K

R704 1K

1

2

3

4

5

6

7

8

CZ11A

8pin

1

2

3

4

5

6

7

8

CZ21A

8pin

1

2

3

4

5

6

7

8

CZ11B

8pin

1

2

3

4

5

6

7

8

CZ21B

8pin

C210
N.I.

C410
N.I.

R706
330

R806

330

R711

1K

R712

22K

R811
1K

R812
22K

R178
30K

C214
39P

1

2

3

J102A

1

2

3

J302A

Q160

KSC2690

1

2

3

J102B

1

2

3

J302B

Q360

KSC2690

C217
0.1u

C417
0.1u

C219

4700p

C419

4700p

C220

82n

C420

82n

R495
47k

R717

470

R817

470

L103

3.3uH

L104

3.3uH

L303

3.3uH

L304
3.3uH

C218

100P

C418

100P

R718
22K

R818
22K

C525

0.1u

C526

0.1u

J510
TO CHASSIS

D139

3.3V 1W

D141

1N4007

R206

100/1W FS

R406

100/1W FS

D341

1N4007

D339

3.3V 1W

D140

3.3V 1W

D142

1N4007

R210

100/1W FS

R410

100/1W FS

D342

1N4007

D340

3.3V 1W

1

2

J508A

TO MAIN J508B

C421

N.I.

1

2

J105A

1

2

J105B

1

2

J305A

1

2

J305B

C222
470P

D136

1N4007

R266
100
3W

+46V

+37V

+12V

12V_TRIG

+18V

STANDBY

-18V

-37V

+12V

SOFT_CLIPPING

+37V

+12V

V-OUT-L

+18V

-18V

+18V

-18V

-18V

+18V

-46V

VFB-L-CH

VFB-R-CH

V-OUT-R

VI-R

-46V

+46V

RELAY

STANDBY

+5V

+22V

-18V

+46V

+46V

+5V

PROTECTION

MAIN-IN-R

MAIN-IN-R

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

+5V

+37V

+5VX

+5VX

MP-L

MP-R

MP-L

MP-R

MP_DET

+46V

+46V

CZ11-1

CZ11-2

VFB-L-CH

CZ11-5

CZ11-6

CZ11-7

CZ11-8

CZ11-2

CZ11-1

VFB-L-CH

CZ11-6

CZ11-7

CZ11-8

CZ11-5

CZ21-8

CZ21-7

CZ21-6

CZ21-5

VFB-R-CH

CZ21-2

CZ21-1

CZ21-1

CZ21-2

CZ21-5

CZ21-6

CZ21-7

CZ21-8

CZ11-8

CZ11-7

CZ11-6

CZ11-5

VFB-L-CH

CZ11-2

CZ11-1

CZ21-1

CZ21-2

VFB-R-CH

CZ21-5

CZ21-6

CZ21-7

CZ21-8

VFB-R-CH

HP_SW1

HP_SW2

ISC_TRIG

I-V

P

PCB MOUNTED VERTICAL

 

9 0 S C 3 2 6 P R E D V R - 9 0 2 1 0 0 0

MOUNTED ON HEATSINK

PCB MOUNTED VERTICAL

 

9 0 S C 3 2 6 P R E D V R - 9 0 2 1 0 0 0

Содержание C 326BEE

Страница 1: ...NAD SERVICE MANUAL C 326BEE C 326BEE Stereo Integrated Ampli er Stereo Integrated Ampli er DRAFT DATE June 2011...

Страница 2: ...2 SAFETY INFORMATION 1 5A...

Страница 3: ...ck out Only U S A model Before returning the product to the customer make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from supply circuit Parts...

Страница 4: ...WER AMPLIFIER SECTION MAIN IN SPEAKER OUT Continuous output power into 8 and 4 Stereo 50 W ref rated THD 20 Hz 20 kHz both channels driven Rated THD CCIF IMD DIM 100 0 009 ref 20 Hz 20 kHz Clipping po...

Страница 5: ...ONSUMPTION Rated power 290 W ref 230V AC 50 Hz 120V AC 60 Hz Standby power 1 W Idle power 35W PHYSICAL SPECIFICATIONS Dimensions Width x Height x Depth 435 x 100 x 286 mm Net 435 x 116 x 332 mm Gross...

Страница 6: ...BY LED 3 SOFT CLIPPING INDICATOR 4 REMOTE SENSOR 5 PHONES 6 MP SOCKET 7 INPUT SELECTOR 8 TONE DEFEAT 9 TONE CONTROLS 10 BALANCE 11 VOLUME 7 TAPE IN OUT 8 SUB 1 SUB 2 9 PRE OUT 10 MAIN IN 11 SOFT CLIPP...

Страница 7: ...cs from the side panels Remove tapping screw 3 0 x 8 0 x 3pcs from the back panel Refer to Figure No 1 2 Pull both sides of the TOP COVER slightly outwards and tilt approx 35 and then remove in the di...

Страница 8: ...8 WIRING DIAGRAM Check these cables for damage caused by chassis lip 90SC326PREDVR 9021000 90SC326PREDVR 9021000...

Страница 9: ...ASSY 15 WAYS AWG 26 2 5P UL1007 1533 VOL BD J201A L 80mm RoHS 10 17 012 4420 90 CABLE ASSY 2 WAYS AWG 16 3 96P WHI RED MAIN BD J13 UL1015 L 100mm RoHS J16 J14 J15 11 17 012 4428 90 CABLE ASSY 5 WAY A...

Страница 10: ...10 BLOCK DIAGRAM...

Страница 11: ...another 15 minutes 5 Re adjust VR103 Voltage across TP1 TP2 3 3 5mV 6 Re adjust VR303 Voltage across TP3 TP4 3 3 5mV B ISC adjustment 1 Turn VR304 fully anti clockwise 2 Use 500mV 1kHz sine wave CD i...

Страница 12: ...12 PCB LAYOUT MAIN BOARD COPPER SIDE 90SC326PREDVR 9021000 90SC326PREDVR 9021000...

Страница 13: ...13 MAIN BOARD COMPONENT SIDE 90SC326PREDVR 9021000 90SC326PREDVR 9021000...

Страница 14: ...14 KEY BOARD PHONE BOARD COMPONENT SIDE KEY BOARD PHONE BOARD COPPER SIDE C528...

Страница 15: ...15 PSU BOARD COMPONENT SIDE PSU BOARD COPPER SIDE...

Страница 16: ...70 R360 470 C336 1N C136 1N R160 470 R159 470 Q112 MMBT5087 E C B Q115 MMBT5551 R1621K R163 1K R158 430 1 Q116 MMBT5551 C137 0 1U R155 220 C135 0 1U 20 C133 220P R156 1K5 C134 33P R1611K R164 4K7 R167...

Страница 17: ...22K D311 1N4148 Q349 NZT660 C363 10U 16V Q339 MMBT5087 R419 2K2 R424 75 D321 1N4148 D320 1N4148 D327 IN4148 D326 IN4148 D325 IN4148 D324 IN4148 C349 15P Q326 MMBT5087 Q325 MMBT5087 C359 100P Q338 MMBT...

Страница 18: ...D D507 DISC C510 10n Q508 MMBT5551 R515 4K7 R516 4K7 D510 1N4148 D511 1N4148 R532 10K D517 SOFT CLIPPING C514 47U 16V C513 0 1u R523 0 Q513 MMBT5551 R525 1 5K D512 1N4148 R524 10K D513 1N4148 D509 1N4...

Страница 19: ...0V C607 0 1u R616 100 R617 220 D609 4V7 1 2W 1 AN 2 CA 3 EM 4 C U602 PC81713NSZ0F 1 2 3 4 5 J609 C606 2200uF 50V C605 3300uF 50V AC AC D605 DB104 400V 1A C604 10nF 250V C603 10nF 250V R613 4K7 R608 22...

Страница 20: ...90 CAP CER 220pF 50V 10 SL ST2 5 RoHS C129 C134 C198 199 C329 C334 03 001 0070 90 CAP CER 33pF 50V 10 NPO TAPE C398 399 TYPE RoHS C219 C419 03 001 0071 90 CAP CER CK 4700pF 50V 10 Y5P RAD ST5 CKB1H472...

Страница 21: ...NPN 1 2A 160V TO 126 FAIRCHILD RoHS Q119 Q131 Q142 Q150 Q331 Q342 Q350 05 001 0113 90 TRANSISTOR KSA1220AYSTU PNP 1 2A 160V TO 126 FAIRCHILD RoHS Q151 Q351 05 001 0115 90 TRANSISTOR PW NJW0281G NPN 1...

Страница 22: ...er RoHS NJM4560M TE3 ZZZB U102 U301 302 01 014 0067 90 IC JFET SINGLE OP AMP SMD TL071CDT ST RoHS SMD RESISTORS R485 R486 R488 R495 02 007 0026 90 SMD RES 47K OHM 1 10W 5 0805 2 0X1 25X0 55 RoHS R148...

Страница 23: ...R421 R474 02 007 0292 90 RES SMD 2 2K OHM 1 1 16W 0603 TAPE RoHS R174 02 007 0293 90 RES SMD 33 OHM 5 1 16W 0603 TAPE RoHS R101 R103 R105 R107 R109 R111 R113 02 007 0294 90 RES SMD 470 OHM 5 1 16W 060...

Страница 24: ...9 02 007 0566 90 SMD RES 330K OHM 5 1 16W 0603 TAPE RoHS R479 02 007 0568 90 SMD RES 180K OHM 5 1 16W 0603 TAPE RoHS R376 R722 02 007 0570 90 SMD RES 390K OHM 5 1 16W 0603 TAPE RoHS R248 R252 R448 R45...

Страница 25: ...327 C338 C406 03 009 0131 90 CAP CER SMD 22nF 50V 20 Y5V 0603 TAPE ROHS C213 C222 03 009 0133 90 CAP CER SMD 470pF 50V 5 NPO 0603 TAPE ROHS C168 C169 C368 C369 03 009 0157 90 CAP CER SMD 560pF 50v 10...

Страница 26: ...mper wire Dia 0 5mm L 52 0mm JMP24 JMP27 29 JMP32 33 JMP36 37 RoHS JMP40 44 JMP48 JMP50 53 JMP61 64 JMP66 JMP72 74 JMP76 JMP82 JMP84 JMP88 89 JMP95 JMP98 101 JMP104 105 JMP107 109 JMP116 120 JMP126 12...

Страница 27: ...5 0 SK RoHS C608 609 03 002 0195 90 E CAP 330uF 16V 20 105 C 8x12mm LOW IMPEDANCE GL KSC RoHS C603 604 03 004 0085 90 MER CAP 0 01uF 630V 103K 10 MTC P 10 TC C617 03 004 0139 90 MEX CAP 0 22uF 275VAC...

Страница 28: ...90 RES SMD 2K OHM 5 1 16W 0603 TAPE RoHS R602 02 007 0448 90 RES SMD 820K OHM 5 1 16W 0603 TAPE RoHS SMD CAPACITORS C607 C615 03 009 0075 90 CAP CER SMD 0 1uF 50V 20 Y5V 0603 TAPE C619 620 03 009 011...

Страница 29: ...EMI FIXED RESISTOR CF 30K OHM 30 B 6mm VERTICAL RoHS RELAY RL109 07 005 0053 90 RELAY DC12V 0 5A 125V ME 12 12 MINIATURE PCB MOUNT RoHS SMD RESISTORS R368 R372 02 007 0157 90 SMD RES 10K OHM 0603 1 Ro...

Страница 30: ...5 2mm L 7104PBD RoHS CRYSTAL X501 14 002 0023 90 Crystal 20 000MHz 30ppm 32pF HC 49 S 01 CR1 02 20M000 32 3030 RoHS SMD ICS U503 0130300104820 Programmed MCU 8 BITS 8K ROM 512 900100 BYTES RAM TQFP AT...

Страница 31: ...JMP11 15 JMP17 17 016 0080 90 Jumper Wire Dia 0 6mm For L Smaller JMP19 21 JMP23 25 JMP31 32 JMP37 44 than 14mm Roll RoHS JMP46 JMP48 50 JMP52 53 JMP55 56 JMP58 61 JMP64 65 JMP68 JMP70 71 JMP74 92 JMP...

Страница 32: ...32 IC BLOCK DIAGRAM Mainboard NJM7805FA U104 NJM4560M U101 TL431 U103 U303 TL071CDR U102 U301 U302...

Страница 33: ...33 Keyboard ATMega48 20 U503 HEF4094BT U501 U502...

Страница 34: ...34 Power Supply TNY274 U601 PC817C U602...

Страница 35: ...XPLODED VIEW A Note Terminal post assembly part number 50 927 0326 90 is made up of the parts 5 6 27 35 46 47 Note Power button and power button bezel are sold as one assembly 13 14 90SC326PREDVR 9021...

Страница 36: ...36 EXPLODED VIEW B NSP HFE SPECIFIC...

Страница 37: ...0 2P INPUT BUTTON BEZEL C326BEE 4 TITANIUM RoHS FOR TITANIUM VERSION 12 21 002 0199 90 2P INPUT BUTTON C326BEE GRAPHITE RoHS 4 FOR GRAPHITE VERSION 21 002 0205 90 2P INPUT BUTTON C326BEE TITANIUM RoHS...

Страница 38: ...C326 GRAPHITE R1 RoHS 1 FOR GRAPHITE VERSION 23 237 0072 90 PLASTIC FASCIA C326 TITANIUM RoHS 1 FOR TITANIUM VERSION 42 25 008 0409 90 POWER LED LENS ROUND 2 MILKY WHITE RoHS 1 43 25 014 0030 90 RUBB...

Страница 39: ...INS 125V 13A SJT AWG18 3C UL CSA 1 L 2M RoHS FOR AH VERSION 17 004 0027 90 AC CORD CE 2 PINS 16A 250V LF L 2M H05VV F 2G 1 0 75 BLACK RoHS FOR C CT VERSION 3 24 006 0992 90 POLYFOAM ENDCAP C326BEE RoH...

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