NAD CI 940 Service Manual page 12

3.INPUT BOARD
JA01A
4 Holes
1
RA25
DA08 N.I.
RA24
DA09 A GN D
A GN D
N . I .
N.I. CA15
N.I.
2
AGND
JA01B
4 HOLES
RA26
N.I.
AGND
JA02A
4 Holes
1
RA27
DA11 N.I.
RA23
DA10 AGND
AGND
N.I.
N.I. CA16
N.I.
2
AGND
JA02B
4 HOLES
N . I .
AGND
CA01
0.1uF
RA01 RA02
220K 220K
+5V AS
JA01C
4 HOLES
JA01D
4 HOLES
JA02C
4 HOLES
LA01
AGND
10uH
JA02D
4 HOLES
PA01A
11 PIN 2.54-A 60B
AGND
RA22
N.I.
DGND
CA02 CA03 CA04
0.1uF 0.1uF 0.1uF
+5VD
RA03 RA04
220K 220K
RA05
100K IC01A
RA06
3
CA06
1
1K
2
100nF
RA10
22K
TL082C IC01B
6
CA08
RA11
7
RA07
5
10K
100nF
1K
CA07
RA09
TL082C
220K
20pF
DA02
RA08
CA05
BAV99
100K DA01
10uF
BAV99
A K
DA03
K
A
2V
DGND DGND
DA04
2V
4
+12VD
5
NTC1
U2000C
TL082
4
5
+12VD
NTC2
1
2
3
4
J2010
5
4PIN /2.54
6
7
8
9
10
11
Q A 0 6
+5VD
Input_mute
RA16
Sense
10K B C 8 5 6 B W
RA17
100K RA18
10K
QA 0 4
B C 8 4 6 B W
RA19
CA10
100K
RA29
100uF/10V
1K
+5V AS
DGND
QA02
C1815
RA15
10K
DA05
1SS352
RA13 +5V AS
QA01
2.2K 2SC1815
RA14
RA12
CA09 100K
CA17
1M
2.2uF
10uF/16V CA18
DGND
100nF
DGND DGND
DGND
14
Temperature Detect a nd Fan SCH
R2002 R2003
22K 34.8K U2000A
3
1 R2015 220R
2
TL082
R2005 12K
R2004
8.2K
C2001 10N
R2009 R2010
22K 34.8K
U2000B
5
R2013 220R
7
6
TL082
R2012 12K
R2011
8.2K
C2004 10N
RL101C
2
+5V AS
+5VD
1
HFD4/5-SR
DA06
1SS352
CA11 CA12
10U/10V 100nF
RA20
QA03
C1815
2K2
CA13
1uF
DGND
+12VD
Q3
KTC4373-Y
J2003
R2007
FAN1+ 2
100K
1
D2002
BAV21W
+12VD
Q4
KTC4373-Y
J2004
R2014
FAN2+ 2
100K
1
D2005
BAV21W
RL102C
2
+5VD
1
HFD4/5-SR
DA07
1SS352
RA21
QA05
C1815
2K2
CA14
1uF
DGND