NAD CI980, Service Manual, Page: 11 / 35

R413
1K
R415
100K
3
2
1
8
4
IC401A
MC4558D
C409
100nF
+12V
-12V
C411
100nF
1
2
3
VR401A
50KB
4
5
6
VR401B
50KB
R414
1K
R416
100K
3
2
1
8
4
IC402A
MC4558D
C410
100nF
+12V
ALL IN
ALR IN
5
6
7
IC403B
MC4558D
3
2
1
8
4
IC403A
MC4558D
R421
10K
R427
18K
R419
10K
C415 33pF
C413
10uF
R422
10K
R428 18K
R420
10K
C416 33pF
C414
10uF
R418
220
R417
220
R425
220
R426
220
5
6
7
IC404B
MC4558D
3
2
1
8
4
IC404A
MC4558D
CH4L IN
CH4R IN
R429
100K
R430
10K
R431
10K
C417
100nF
+12V
-12V
C418 1 00nF
C419 100nF
+12V
-12V
C420
100nF
R432
10K
1 2 3 4 5 6 7
CN401A
XHB 2.5A-7A
1 2 3 4 5 6
CN402A
Comment: XHB 2 . 5A-6A
-12V
C412
100nF
R613
1K
R615
100K
3
2
1
8
4
IC601A
MC4558D
C609
100nF
+12V
-12V
C611
100nF
1
2
3
VR601A
50KB
4
5
6
VR601B
50KB
R614
1K
R616
100K
3
2
1
8
4
IC602A
MC4558D
C610
100nF
+12V
-12V
C612
100nF
ALL IN
ALR IN
5
6
7
IC603B
MC4558D
3
2
1
8
4
IC603A
MC4558D
R621
10K
R627
18K
R619
10K
C615 33pF
C613
10uF
R622
10K
R628 18K
R620
10K
C616 33pF
C614
10uF
R618
220
R617
220
R625
220
R626
220
5
6
7
IC604B
MC4558D
3
2
1
8
4
IC604A
MC4558D
CH6L IN
CH6R IN
R629
100K
R630
10K
R631
10K
C617
100nF
+12V
-12V
C618 100nF
C619 100nF
+12V
-12V
C620
100nF
R632
10K
1 2 3 4 5 6 7
CN601A
XHB 2.5A-7A
1 2 3 4 5 6
CN602A
XHB 2.5A-6A
R513
1K
R515
100K
3
2
1
8
4
IC501A
MC4558D
C509
100nF
+12V
-12V
C511
100nF
1
2
3
VR501A
50KB
4
5
6
VR501B
50KB
R514
1K
R516
100K
3
2
1
8
4
IC502A
MC4558D
C510
100nF
+12V
-12V
C512
100nF
ALL IN
ALR IN
5
6
7
IC503B
MC4558D
3
2
1
8
4
IC503A
MC4558D
R521
10K
R527
18K
R519
10K
C515 33pF
C513
10uF
R522
10K
R528 18K
R520
10K
C516 33pF
C514
10uF
R518
220
R517
220
R525
220
R526
220
5
6
7
IC504B
MC4558D
3
2
1
8
4
IC504A
MC4558D
CH5L IN
CH5R IN
R529
100K
R530
10K
R531
10K
C517
100nF
+12V
-12V
C518 100nF
C519 100nF
+12V
-12V
C520
100nF
R532
10K
1 2 3 4 5 6 7
CN501A
XHB 2.5A-7A
1 2 3 4 5 6
CN502A
XHB 2.5A-6A
C407
470pF
C408
470pF
C507
470pF
C508
470pF
C607
470pF
C608
470pF
R313
1K
R315
100K
3
2
1
8
4
IC301A
MC4558D
C309
100nF
+12V
-12V
C311
100nF
1
2
3
VR301A
50KB
4
5
6
VR301B
50KB
R314
1K
R316
100K
3
2
1
8
4
IC302A
MC4558D
C310
100nF
+12V
-12V
C312
100nF
ALL IN
ALR IN
5
6
7
IC303B
MC4558D
3
2
1
8
4
IC303A
MC4558D
R321
10K
R327
18K
R319
10K
C315 33pF
C313
10uF
R322
10K
R328 18K
R320
10K
C316 33pF
C314
10uF
R318
220
R317
220
R325
220
R326
220
5
6
7
IC304B
MC4558D
3
2
1
8
4
IC304A
MC4558D
CH3R IN
R329
100K
R330
10K
R331
10K
C317
100nF
+12V
-12V
C318 100nF
C319 100nF
+12V
-12V
C320
100nF
R332
10K
1 2 3 4 5 6 7
CN301A
XHB 2.5A-7A
1 2 3 4 5 6
CN302A
XHB 2.5A-6A
C308
470pF
C307
470pF
R301
100K
R303
3.3K
R305
33K
R309
10K
R307
10K
R311
220
5
6
7
IC301B
MC4558D
2
1
RCA301A
3
1
RCA301B
5
4
RCA301C
6
4
RCA301D
C301
10uF
C303
470pF
C305 33pF
R302
100K
R304
3.3K
R306
33K
R310
10K
R308
10K
R312
220
5
6
7
IC302B
MC4558D
C302
10uF
C304
470pF
C306 33pF
L IN
L OUT
R IN
R OUT
L301
R302
Q302
2SC1815
R336
10K
Q301
2SC1815
R335
10K
MUTE
R401
100K
R403
3.3K
R405
33K
R409
10K
R407
10K
R411
220
5
6
7
IC401B
MC4558D
2
1
RCA401A
3
1
RCA401B
5
4
RCA401C
6
4
RCA401D
C401
10uF
C403
470pF
C405 33pF
R402
100K
R404
3.3K
R406
33K
R410
10K
R408
10K
R412
220
5
6
7
IC402B
MC4558D
C402
10uF
C404
470pF
C406 33pF
L IN
L OUT
R IN
R OUT
L401
R402
Q402
2SC1815
R436
10K
Q401
2SC1815
R435
10K
R501
100K
R503
3.3K
R505
33K
R509
10K
R507
10K
R511
220
5
6
7
IC501B
MC4558D
2
1
RCA501A
3
1
RCA501B
5
4
RCA501C
6
4
RCA501D
C501
10uF
C503
470pF
C505 33pF
R502
100K
R504
3.3K
R506
33K
R510
10K
R508
10K
R512
220
5
6
7
IC502B
MC4558D
C502
10uF
C504
470pF
C506 33pF
L IN
L OUT
R IN
R OUT
L501
R502
Q502
2SC1815
R536
10K
Q501
2SC1815
R535
10K
R601
100K
R603
3.3K
R605
33K
R609
10K
R607
10K
R611
220
5
6
7
IC601B
MC4558D
2
1
RCA601A
3
1
RCA601B
5
4
RCA601C
6
4
RCA601D
C601
10uF
C603
470pF
C605 33pF
R602
100K
R604
3.3K
R606
33K
R610
10K
R608
10K
R612
220
5
6
7
IC602B
MC4558D
C602
10uF
C604
470pF
C606 33pF
L IN
L OUT
R IN
R OUT
L601
R602
Q602
2SC1815
R636
10K
Q601
2SC1815
R635
10K
M
U
T
E
D301
1N4148
MUTE
M
U
T
E
D302
1N4148
MUTE
M
U
T
E
D401
1N4148
MUTE
M
U
T
E
D402
1N4148
MUTE
M
U
T
E
D501
1N4148
MUTE
M
U
T
E
D502
1N4148
MUTE
M
U
T
E
D601
1N4148
MUTE
M
U
T
E
D602
1N4148
C321
220pF
C322
220pF
C421
220pF
C422
220pF
C521
220pF
C522
220pF
C621
220pF
C622
220pF
7
2.PRE AMP BOARD(2/4)