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Amplifier
D 7050
Service manual
Psu Board - NAD D7050 Service Manual
Direct digital network amplifier
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Also See for D7050
:
Owner's manual
(21 pages)
,
Quick setup manual
(2 pages)
,
Quick setup manual
(2 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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9.PSU BOARD VM1.2
U 201
K A 78R15
2
out
i n
V CC
C 207
C 205
R 210
100U F/ 25V
100nF/ 50V
10K
G N D P
R261
D 217
150R
V CC
R262
1N 4148
K 201
150R
Rel ay-SPST
C Y202
1nF/ A C250V
CX 201
470nF/ 275V A C
R206
R208
A C INET
1M
1M
1
ZV 201
L205
L204
2
471K D 10
20M H
CX 202
20M H
3
CX 203
R232
330nF/ 275V A C
R209
470nF/ 275V A C
CO N 3-3. 96
1M
1M
FU SE201
TH 201
T3. 15A L250V
5D -11
C Y203
1nF/ A C250V
XM 203
XM 201
H O LE
H O LE
K 202
K 203
M 201
M 202
W A RN ING
W A RN ING
M A RK 1
M A RK 2
5. 6V D
R205
1k
O P201
R 201
C 202
100P
1K
PC 817
STB
1nF/ A C250V
C Y201
D 202
TV S SM A J200A
1
T201
SS36 60V / 3A
D 216
C201
2
10uF/ 400V CD 263
D 201
10
BY G 20J 600V / 1. 5A
9
C 203
3
1
470uF/ 16V
M U RS120
6
R 203
8
D 220
D 203
7
1R
4
C 208
BA S321
C 206
R204
100U F/ 25V
5
10R
100nF/ 50V
EE16A
C211
50V / 10U F CD 263
C210
1K V / 100PF(
TN Y 280
IC201
R 219
18K
5
4
S
D
6
S
C 212
7
2
S
BP
O P202
8
1
100nF/ 50V
S
U V
PC 817
G N D 1
D 218
3
2
L202
D 219
D B6S
G U B606
L-PFC
R 211
G N D P
2
3
510K
C 209
1uF/ 400V D C
R 213
R 227
330K
L206
68k
10M H
R 214
330K
C 226
R 236
47K
2. 2uF/ 25V
C 227
100nF/ 50V
N TC202
V CC
1
2
IC204
8
V cc
R 228
3
7
M ul t
G D
10R
6
G nd
C 223
L6562
10n/ 50V
R 237
R 215
C 224
10K
1U F/ 25V
1K
C 228
330PF/ 50V
S203
L201
5. 6V D
Comme nt : 3. 3U H
C 204
1000uF/ 10V
G N D 2
J201
1
STB
2
G N D 2
3
5. 6V D
CO N 3
R220
200R
R222
R202
2. 2K 1%
1k
R221
3. 3k
C214
220nF/ 50V
1
IC202
TL431
R223
1. 8K 1%
V PFC
D 221
M U RF860
R 212
560K
V D D
R 216
510K
24m A
SS
I C 205 ISL6744A BZ
1
8
SS
V D D
R 217
430K
2
7
RTD
O U TB
3
6
CS
O U TA
C 234
4
5
CT
G N D
100P
R 241
68K
C 231
4. 7U F/ 25V
C 237
C 238
200P
180P
R 235
510R
R 234
Q 213
10K
FD PF10N 50FT
V D D
R 218
9. 1K
Q 215
C233
R 238
R 239
Comme nt : BC856BW
R258
100nF/ 50V
1R00
1R00
47k
R242
D 222
B
R244
4. 7k
BA S316
100k
R259
4. 7k
R 260
G N D P
22K
Q 214
IC203A
SS
R253
BC846BW
3
4. 7K
R256
R257
B
1
100R
100R
2
R240
B
LM 393
S201
C235
47K
Q 216
C 232
R254
1nF/ 50V
R 243
2SC3326
Comme nt : 47uF/ 50V
4. 7k
20K
G N D P
25
L203 22uH
V CC
N TC201
D 204
R 224
1
C215
C216
2
10nF/ 1K V
10nF/ 1K V
Q 201
22R
BA S321
FD PF10N 50FT
C217
330nF/ 275V A C
R 245
Q 209
1nF/ A C250V
1
G N D P
BC807-25
CY 204
22R
220nf
D 208
C 239
G N D P
7
2
BA S321
T202
12
EE18
3
R 246
TR201A
R 249
1. 2nF/ 200V
5
10R
12R/ 1206
6
C 225
EE18
2
1U F/ 25V
TR201C
9
R 229
22R
4
TR201B
D 207
1
EE18
R 250
Q 204
4
12R/ 1206
1. 2nF/ 200V
BA S321
FD PF10N 50FT
10
E-PQ3230
C218
Q 210
330nF/ 275V A C
BC807-25
D 209
BA S321
R 207
C236
O C
100nF/ 50V
2. 7k
R 247
R 248
C 229
2R20
2R20
1n5/ 50V
G N D P
IC203B
O C
6
7
5
LM 393
XM 204
H O LE
V+
D 205
D 206
R 225
R 226
22R
Q 202
22R
Q 203
BA S321
BA S321
FQ PF630
150P/200V
FQ PF630
150P/200V
C 219
C 220
13
Q 207
12
Q 208
BC807-25
BC807-25
D 211
D 214
14
BA S321
11
BA S321
TR201D
EE18
TR201F
EE18
C 240
R 252
22R
R 251
22R
D 210
D 213
R 230
R 231
C 241
22R
Q 205
22R
Q 206
BA S321
BA S321
FQ PF630
FQ PF630
150P/200V
150P/200V
C 221
C 222
9
Q 211
8
Q 212
BC807-25
BC807-25
D 212
D 215
BA S321
BA S321
10
10
TR201G
TR201E
EE18
EE18
V-
L208
L209
V+
Comme nt : 65R7A
Comme nt : 65R7A
C242
R 263
J202
1000U F/ 35V
S202
4. 7k
C246
6
10nF/ 100V
+29V
C245
5
1000U F/ 35V
4
G N D
3
C243
2
1000U F/ 35V
R 264
- 29V
1
4. 7k
C247
R 255
C244
10nF/ 100V
CO N 6
10R
C 248
1000U F/ 35V
10nF/ 50V
V-
L210
L211
Comme nt : 65R7A
Comme nt : 65R7A
XM 202
H O LE
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