NAD D 7050 Service Manual Download

Page: 26 / 48

D 219
G U B606

R209
1M

R208
1M

-2

CX 201
470nF/275V A C

CX 202

330nF/275V A C

TH 201

5D -11

FU SE201

T3.15A L250V

L204
20M H

L205
20M H

D 218

D B6S

STB
G N D 2
5.6V D

K 203

W A RN ING

K 202

W A RN ING

M 202

M A RK 2

M 201

M A RK 1

K 201

Relay-SPST

V CC

D 217

1N 4148

C Y202

1nF/A C250V

C Y203

1nF/A C250V

D 201

BY G 20J 600V /1.5A

R204
10R

C201
10uF/400V CD 263

C211

50V /10U F CD 263

G N D 2

5.6V D

C 203

470uF/16V

L201

Comme nt: 3.3U H

C 204

1000uF/10V

R220
200R

C214

220nF/50V

IC202
TL431

R223

1.8K 1%

R221

3.3k

R202
1k

R222
2.2K 1%

O P202

PC 817

C Y201

1nF/A C250V

R 219

18K

C 212

100nF/50V

U V

IC201

TN Y 280

D 202
TV S SM A J200A

C210

1K V /100PF(

G N D 1

M ult

G nd

G D

V cc

IC204

L6562

C 209

1uF/400V D C

C244
1000U F/35V

C242

1000U F/35V

CY 204

1nF/A C250V

C246
10nF/100V

C247
10nF/100V

C245
1000U F/35V

G N D P

C243
1000U F/35V

Q 213

FD PF10N 50FT

D 221

M U RF860

R 236

47K

R 228

10R

C 227

100nF/50V

C 224

1U F/25V

C 223

10n/50V

V PFC

R 238

1R00

R 239

1R00

R 227

68k

G N D P

R 237

C 226

2.2uF/25V

R 234

10K

R 213

330K

R 214

330K

R 215

10K

R 211

510K

C 228

330PF/50V

D 203

BA S321

C 206

100nF/50V

D 220

M U RS120

C 208

100U F/25V

C 205

100nF/50V

C 207

100U F/25V

out

U 201
K A 78R15

O P201

PC 817

R 201

R 210

10K

R205
1k

C 202

100P

STB

R 203

V CC

G N D P

V CC

C 240

1.2nF/200V

R 249

12R/1206

C 241

1.2nF/200V

R 250

12R/1206

V+

V-

Q 205

FQ PF630

Q 211

BC807-25

D 210

BA S321

R 230

22R

D 212

BA S321

C 221

150P/200V

R 251

22R

C 219

150P/200V

V+

V-

Q 202

FQ PF630

Q 207

BC807-25

D 205

BA S321

R 225

22R

D 211

BA S321

Q 206

FQ PF630

Q 212

BC807-25

D 213

BA S321

R 231

22R

D 215

BA S321

C 222

150P/200V

R 252

22R

C 220

150P/200V

Q 203

FQ PF630

Q 208

BC807-25

D 206

BA S321

R 226

22R

D 214

BA S321

TR201G
EE18

TR201F
EE18

TR201D
EE18

TR201E
EE18

S202

S201

T201

EE16A

1
2

N TC202

1
2
3

J201

CO N 3

J202

CO N 6

S203

XM 202

H O LE

R 255

10R

C 248

10nF/50V

T202

E-PQ3230

+29V

G N D

-29V

C 231

4.7U F/25V

C 225

1U F/25V

RTD

V D D

O U TB

O U TA

G N D

IC 205

ISL6744A BZ

C 237

200P

C 238

180P

G N D P

R 241

68K

V CC

Q 204

FD PF10N 50FT

Q 210

BC807-25

D 207

BA S321

R 229

22R

D 209

BA S321

Q 201

FD PF10N 50FT

Q 209

BC807-25

D 204

BA S321

R 224

22R

D 208

BA S321

C 239

220nf

R 245

22R

R 246

10R

C 234

100P

1
2

N TC201

24m A

C217
330nF/275V A C

C218
330nF/275V A C

IC203A

LM 393

IC203B

LM 393

O C

TR201B
EE18

R 247

2R20

R 248

2R20

L203

22uH

C215
10nF/1K V

C216
10nF/1K V

G N D P

R 207

2.7k

C 229

1n5/50V

V D D

TR201A

EE18

TR201C

EE18

R 235

510R

R 216

510K

R 217

430K

R 218

9.1K

R 212

560K

G N D P

R253

4.7K

R 243

20K

R244
100k

C235

1nF/50V

O C

G N D P

V D D

C236
100nF/50V

R242
4.7k

R 260

22K

C233
100nF/50V

C 232

Comme nt: 47uF/50V

R254
4.7k

R257
100R

Q 214
BC846BW

Q 215
Comme nt: BC856BW

D 222

BA S316

Q 216
2SC3326

R259
4.7k

R258
47k

R240

47K

R256

100R

R261

150R

R262

150R

R 263

4.7k

R 264

4.7k

L202

L-PFC

D 216

SS36 60V /3A

5.6V D

L206
10M H

L208

Comme nt: 65R7A

L209

Comme nt: 65R7A

L210

Comme nt: 65R7A

L211

Comme nt: 65R7A

1
2
3

A C INET

CO N 3-3.96

XM 201

H O LE

CX 203
470nF/275V A C

XM 203

H O LE

XM 204

H O LE

R232
1M

R206
1M

ZV 201
471K D 10

9.PSU BOARD VM1.2

Summary of Contents for D 7050

Page 1: ...NAD SERVICE MANUAL D7050 Direct Digital Network Amplifier D7050 Direct Digital Network Amplifier...

Page 2: ...RIPTION P A G E SERVICE CAUTION 3 4 SPECIFICATIONS 5 WIRING DIAGRAM 6 9 PCB LAYOUT 26 32 EXPLODED VIEW PARTS LIST 11a b CIRCUIT DIAGRAMS TROUBLE SHOOTING GUIDE 10 EXPLODED VIEW 11a b 12 25 ELECTRICAL...

Page 3: ...ACITOR BETWEEN A KNOWN GOOD EARTH GROUND WATER PIPE CONDUIT ETC AND THE EXPOSED METALLIC PARTS ONE AT A TIME MEASURE THE AC VOLTAGE ACROSS THE COMBINATION OF 1500 OHM RESISTOR AND 15 MFD CAPACITOR REV...

Page 4: ...cluding Metal panels Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components common...

Page 5: ...to 24 192 via Digital Audio input up to 24 96 via Computer Type B USB input Unit dimensions W x H x D Gross 70 x 235 x 275 mm 2 x 9 x 10 inches Shipping weight 3 3 kg 7 3 lbs NAD SHALL NOT BE HELD LIA...

Page 6: ...IV E R 3 2 192K B ridge Module Board CX870 A ppleCeriticiateIC M FI341S2500 I2C HOS T _IR E Q WIFI Id evice E th ern et SP DIF SP DIF IIS 844K H z L DO 3V 3 L DO 1V 8 1V 8 3V 3 DC DC 5V 2A 5V 2A 5V S...

Page 7: ...nterface mix Digital input Serial interface mix Digital audio Digital audio Digital audio Digital input Serial interface mix DSP Programmable filtering delay Amplifier DSP volume PWM Digital audio PWM...

Page 8: ...tages and feedback controllers Output stages and feedback controllers Digital audio inputs Control I O GPIO BIST Supplies Master clock input Feedback control clocks Feedback control clocks 4 h C 3 h C...

Page 9: ...ut Digital feedback processor ZXCZA200 Analogue feedback processor Channel amplifier Channel DSP DDFATM chip set H bridge Filter Digital audio input Gate driver ZXCZM800 Digital modulator Bridge suppl...

Page 10: ...TOUCH BOARD OR SOFTWARE ER ROR YES NO CHECK THE 5V SUPPLY CIRCUIT NO NO IS ALL POWER SUPPLIES OK NO YES IS MOSFET BROKEN CHECK THE OVC VOV CIRCUIT NO IS IR NORMA L IS BLUETOOTH NORMAL IS AIR PLAY NORM...

Page 11: ...LATE 1 4 70 325001 4 INNER PLATE 1 5 70 325002 3 HEAT SINK A 1 6 75 325003 0 ANTENNA BRACKET 1 7 66 325004 0 VENT PLATE 2 8 75 325002 0 ROUND COVER 6 9 77 325002 1 BOTTOM COVER 1 10 J71 325002 0 KNOB_...

Page 12: ...5 29 04601 02 6 14 233006 00 7 14 23304 11 8 A07 70022 18 9 14 23310 00 10 01 23308 00 PSU BOARD 11 01 23307 00 HEAD PHONE BOARD 12 01 23302 00 FPP BOARD 13 01 23304 00 SOURCE BOARD 14 01 23303 00 VOL...

Page 13: ...167 C23P3V 3 168 CH2_FB1 169 CH2_FB0 170 CH2_REF2 171 CH2_REF1 172 C2GND 173 C2P3V 3 174 CH2_REF0 175 C2P1V 8 176 U3 ZXC ZM800 R 3V3 R 1V8 1V8 3V3 S 1V8 S 3V3 C 1V8 C 3V3 C 1V8 C 3V3 150R R 103 150R R...

Page 14: ...7 V cc 8 U 6 N C7N Z17K 8X IP1 1 O P3 2 IP2 3 G N D 4 O P2 5 IP3 6 O P1 7 V cc 8 U 7 N C7N Z17K 8X IP1 1 O P3 2 IP2 3 G N D 4 O P2 5 IP3 6 O P1 7 V cc 8 U 8 N C7N Z17K 8X G G D D S S Q 7 ZX M N 7A 11K...

Page 15: ...ro m C1V 8 fo rRefere nces A 8V 8V suppl y fo rderi vi ng anal ogue suppl i es N 8V 8 V suppl y fo rderi vi ng anal ogue suppl i es A 5V 5V A nal ogue suppl y N 5V 5 V A nal ogue suppl y R3V 3 3 3V l...

Page 16: ...4u7F C26 S2O_A 1M R23 GND 1k2 R5 3k3 R7 270pF C14 GND 1k2 R6 3k3 R8 270pF C15 GND 4u7F C5 4u7F C2 4u7F C3 4u7F C4 4u7F C1 N5V A5V GND 1uF C12 1uF C13 PW M CK C108_A C108_B FB 0_A FB 1_A FB 1_B FB 0_B...

Page 17: ...8 22U 6V3 C 10 5 6 100N C 10 5 5 100N C 10 5 4 100N U SBS_BCK U SBS_D A C 10 0 5 1N G N D C 10 16 1N C 10 0 2 22U 6 3V TR 1 G N D 2 O U T 3 V D D 4 U 1001 24 576M G N D C 10 15 22U 6 3V TR 1 G N D 2...

Page 18: ...1025 FB C1133 2 2U G N D PD ETa D 1018 PESD 3V 3 G N D 3V 3S PD ET 3 0 V _ O N 3 0 V _ O N A V 3CTRL0 A V 3CTRL1 BG _CS B R _L R C L K B R _SD B R _SC K A M PO V C A M PO V C D 10 2 1 4v7 G N D A 0 1...

Page 19: ...6 A D 3 1S S 3 5 2 R 8 7 8 2 0 R J Q 17 2 S C 3 3 2 6 A R 9 4 8 2 0 R J D 14 1S S 3 5 2 RA _REF0 RA _REF1 RA _REF2 3k32 R111 3k32 R119 53k6 R120 1nF C92 G N D 100uF C79 15R R135 1nF C95 G N D 47R R136...

Page 20: ...G D D S S Q 5 2N 7002 G G D D S S Q 3 2N 7002 G N D G N D G N D G N D A 5V A 5V N 5V PSU _F RailDetecti on resi stor V al ue T BD G N D DEBUG SOCKET C1490 10N R1130 10R D 1010 1SS352 G N D X M 1001 H...

Page 21: ...AUDIO A8 AU_REF C2 VDD_ANA_RADIO E9 PIO6 K1 LED1 E10 UART_RTS K7 VBAT B2 VDD_AUX A4 SPK_LP B5 VDD_AUDIO_DRV F9 UART_RX G9 UART_CTS H10 USB_P G10 PIO7 D10 PIO21 C9 PIO19 B6 SPK_RN G1 PIO13 H1 PCM_IN K2...

Page 22: ...00R R 5 2 0 A 100R C505 10N R529 10R D 502 1SS352 G N D X M 500 H O LE D 500 1SS352 C506 10N R530 10R D 503 1SS352 G N D X M 501 H O LE D 501 1SS352 V IN 6 CTRL 5 CO M P 2 G N D 3 FB 1 SW 4 U 501 TPS6...

Page 23: ...E 1 2 3 4 J 504 4PIN 7 8 egnd C5 1 3 10u 10v S O U R C E ENC O D E R R 5 2 8 10 K R 5 2 7 10 K C 5 11 10 0 n C 5 10 10 0 n A 1 C 3 B 2 S500 EN CO D E 1 2 3 4 J 502 4PIN 7 8 fg nd C509 1 0u 1 0 v V O...

Page 24: ...C 10 8 6 100n 5 1 4 2 3 J 10 0 9 A S T 3 2 3 B 0 4 C K K 3 5 0 2 3 P Q 10 0 3 D T C 114 232 gnd J 10 0 6 B J 10 0 6 A R 10 5 5 0 R J C 10 7 2 2 2 0 pF R 10 6 1 0 R J C 10 8 2 2 2 0 pF C 10 7 3 N I C 1...

Page 25: ...Q411 2SC3326 R503 4K7 R502 4K7 Q413 2SC3326 R504 4K7 1 2 3 4 5 6 CO N 1002 Touch c on TO U CH _PA D 5 1 4 2 3 6 7 J 1 C K X 3 5 0 2 K 1 2 3 4 5 6 7 8 H eader8 w hi t e red amb er R D 401 W D 402 O D 4...

Page 26: ...22R C 219 150P 200V V V Q 202 FQ PF630 Q 207 BC807 25 D 205 BA S321 R 225 22R D 211 BA S321 Q 206 FQ PF630 Q 212 BC807 25 D 213 BA S321 R 231 22R D 215 BA S321 C 222 150P 200V R 252 22R C 220 150P 200...

Page 27: ...Top Layer 1 AMP BOARD VM1 2 PCB LAYOUT 26...

Page 28: ...1 AMP BOARD VM1 2 Bottom Layer 27...

Page 29: ...Top Layer Bottom Layer 2 BLUETOOTH BOARD VM1 2 3 TOUCH BOARD VM1 2 Top Layer Bottom Layer 28...

Page 30: ...4 FPP BOARD VM1 2 5 VOLUME ENCODE BOARD VM1 2 Top Layer Bottom layer Top Layer Bottom Layer 29...

Page 31: ...6 SOURCE ENCODE BOARD VM1 2 Top Layer Bottom Layer 7 HEADPHONE BOARD VM1 2 Top Layer Bottom Layer 30...

Page 32: ...8 INT BOARD VM1 2 Top Layer Bottom Layer 31...

Page 33: ...9 PSU BOARD VM1 2 Top Layer Bottom Layer 32...

Page 34: ...Digital transistor DTC114EKA A K E 4 1 1 A T D r o t s i s n a r t l a t i g i D 1 0 4 1 1 0 0 1 3 2 2 0 1 Q 1 0 0 1 Q 3 2 T O S 5 1 0 1 A r o t s i s n a r t l 3 0 5 1 0 1 0 1 3 4 1 0 1 Q 3 1 0 1 Q 0...

Page 35: ...R 4 4 R 1 10W 1 R48 R64 R66 R99 R137 R1083 R1118 R1119 R1121 R1015 R1090 R1091 R1158 R141 R145 R149 R150 R151 R147 R148 R118 R1031 R152 R1125 R1126 07 91000 00 Chip Resistor 100 1 10W 1 0 0 1 r o t s...

Page 36: ...R p i h C 1 0 0 0 0 1 9 7 0 1 9 R 0805 1 8W 1 0 2 8 r o t s i s e R p i h C 1 0 0 0 2 8 9 7 0 4 9 R 9 8 R 7 8 R 0805 1 8W 1 r o t s i s e R p i h C 1 0 1 0 5 1 9 7 0 3 3 0 1 R 1 5K 0805 1 8W 1 RC0805...

Page 37: ...C41_Ch1 C48 C49 C52 C83 C84 C85 C86 C87 C88 C89 C90 C91 C93 C94 C98 C99 C101 C102 C103 C104 C105 C106 C107 C108 C109 C111 C112 C113 C118 C121 C139 C147 C156 C903_Ch0 C903_Ch1 C922_Ch0 C922_Ch1 C1045...

Page 38: ...9 0 6 4 0 8 0 1 2 0 1 L 4 1 0 1 L 9 0 0 1 L 2 0 0 1 L 1 0 0 1 L L1020 L1022 L1025 08 04102 16 BEAD 1000 25 100MHz 0603 742792664 L1016 L1017 L1023 08 04100 06 Inductor SMD 10uH 2A GPSR0520 100M 5 2 4...

Page 39: ...r o t i c a p a C p i h C c i m a r e C 0 2 1 1 5 2 2 6 2 2 C C3 C6 C7 C8 C16 C21 C20 26 47560 08 Ceramic Chip Capacitor 4 7uM 6 3V 0402 X5R C13 C17 C18 26 10351 08 Ceramic Chip Capacitor 10nF 50V 04...

Page 40: ...2001 0 Plastic Spacer Screw Nylon66 H 11 TP 11 3 M 6 6 n o l y N T U N c i t s a l P 0 2 0 3 0 1 1 2 6 61 023506 0 Machine Screw MB3 6 zinc black 61 373506 0 Machine Screw M3 6 61 023510 0 Machine Scr...

Page 41: ...5 0 8 0 R 5 X 0 1 V 3 6 U 2 2 r o t i c a p a C p i h C c i m a r e C 1 1 0 6 6 2 2 6 2 6 2 5 C 0 2 5 C R 7 X V 6 1 0 1 F u 1 r o t i c a p a C p i h C c i m a r e C 0 2 1 1 5 0 1 6 2 2 2 5 C R 5 X 3...

Page 42: ...0 1 C 0 1 R 7 X 3 0 6 0 V 6 1 F n 0 0 1 r o t i c a p a C p i h C c i m a r e C 0 0 1 1 4 0 1 6 2 6 8 0 1 C 5 8 0 1 C CONNECTORS 3 1 0 A 6 Y 9 0 0 0 1 F B P 6 9 0 1 D M S r o t c e n n o C C P F 5 0...

Page 43: ...0 0 6 8 0 2 3 3 1 2 2 D TRANSISTORS Q207 Q208 Q209 Q210 Q211 Q212 A m 0 0 5 V 5 4 5 2 7 0 8 C B r o t s i s n a r t 0 0 5 2 7 0 8 1 3 A m 0 0 1 V 5 6 W B 6 4 8 C B s r o t s i s n a r T 2 0 6 4 8 0 0...

Page 44: ...805 1 8W 5 RC0805JR 07330KL r o t s i s e R p i h C 1 0 4 3 4 0 9 7 0 7 1 2 R 430K 0805 1 8W 5 RC0805JR 07430KL r o t s i s e R p i h C 1 0 3 0 1 5 9 7 0 6 1 2 R 1 1 2 R 510K 0805 1 8W 1 RC0805FR 0751...

Page 45: ...2 9 0 2 C 0 2 V 0 5 F u 0 1 X 3 6 2 D C r o t i c a p a C c i t y l o r t c e l E u l A 2 0 1 5 0 0 1 6 0 1 1 2 C 5 2 F 0 2 V 5 3 F u 7 4 3 6 2 D C r o t i c a p a C c i t y l o r t c e l E u l A 0 0...

Page 46: ...i s t a e h 1 4 0 0 5 2 3 0 7 0 5 0 1 L A D _ k n i s t a e h 0 5 0 0 5 2 3 0 7 0 1 T 5 N C C E S r e v o c d l e i h s 2 2 0 0 5 2 3 6 6 90 325005 0 Non woven Cloth 7 50mm m m 4 0 6 1 6 8 1 7 1 K G...

Page 47: ...egg_tray 90 325001 2 non clothes bag 430 320 88 325005 0B sleeve box 88 325006 0A accesory box m m 0 0 3 0 5 3 A d r a o b p a l c 0 7 0 0 5 2 3 8 8 m m 1 3 3 9 0 5 B d r a o b p a l c 1 8 0 0 5 2 3 8...

Page 48: ...5mm2 3C Black L 1800mm or JA15 16250 00 AC Cord 3PINS 16A 250V LF L 6 7 LP 34 H05VV F 3C LS 60 Outside the carton 2 94 325014 0 Version Label 115 85mm R 1mm m m 5 2 6 4 l e b a L n o i s r e V 1 6 0 0...

Search results

Summary of Contents for D 7050

Reviews:

Related manuals for D 7050

Brands by name

Popular brands

NAD D 7050, Service Manual

Search results

Summary of Contents for D 7050

Reviews:

Related manuals for D 7050

Brands by name

Popular brands