NAD CI980, Service Manual, Page: 15 / 35

1 7
4.LED BOARD
+5VD
TO -PO W ER LED
3 1
2
LED4
SWIT
LED9R
3 1
2
LED3
LED9B
3 1
2
LED2
3 1
2
LED1
CT1
1uF
RT2
3.3K
RT4
10K
RT1
10K
+5VD
RT3
510
C H 2
C H 4
C H 6
C H 8
1
2
3
4
5
CJ109B
X HB 2.5A -5A
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
GND
8
QA
15
V CC
16
GH
9
SI
14
G
13
RCK
12
SCK
11
SCL R
10
UT1
74HC595
+5 V D
LED1G
LED1R
LED2G
LED2R
LED3G
LED3R
LED4G
LED4R
RT22
100
L
E
D
4R
RT23 100
L
E
D
4G
RT21
100
QT8
2SA1015
QT1
2SA1015
QT7
2SA1015
QT2
2SA1015
RT15
510
RT13
10K
RT16
10K
RT14
3.3K
L
E
D
1G
L
E
D
1R
L
E
D
3R
L
E
D
3G
RT6
3.3K
RT8
10K
RT5
10K
RT7
510
QT6
2SA1015
QT3
2SA1015
QT5
2SA1015
QT4
2SA1015
RT11
510
RT9
10K
RT12
10K
RT10
3.3K
L
E
D
2G
L
E
D
2R
1
2
3
4
5
6
7
8
9
CJ105B
Comment: XHB 2.5A-9A
+5 V D
SI
RCK
SCK
L ED9B
L ED9R
SW IT
RT24
10K
+5 V D
QT9
2SC1815
QT9B
L EDK
QT9B
CT2
2.2uF
RT25
1K
1
2
JF1
XHB 2.5A-2A
1
2
JF2
XHB 2.5A-2A
FS1
RT31
10K
QT13
TIP31CG
+11VF
1
2
3
4
JS101A
XHB 2.5A-4A
CT31
10uF/25V
RT32
22K
RT38
100K
RT33
22K
RT34
10K
RT35
16K
RT37
220
CT34
10nF
CT32
2.2uF/25V
5
6
7
UT31B
TL082
3
2
1
8
4
UT31A
TL082
CT33
1uF
t
NTC1
10K
TP1
TP2
TP3
DT31
1N4148
DT32
1N4148
DT33
BAS321
CT35
220uF/25V
+12VF
+12VF
+11VF
ZT31
NC
+12VF
TP4
FS1
+12VF