NAD CI940, Service Manual, Page: 14 / 36

5.DUAL VOLTAGE BOARD
1 6
1 2 3 4 5 6 7 8 9
J950
TO INT BOARD
R965
1K
R966
2K
7
D952
BAS316
R953
100K
R968
100
K
C952
220nF/25V
R956
470
K
R960
180
K
6
5
7
U950B
LM393
8
4
U950C
LM393
2
3
1
U950A
LM393
D951
BAT54J
R967
10
K
R957
10
K
C955
1nF/25V
R958
10
K
C956
22U/10V(C3216X5R1A226M T)
R959
100
K
D954
BAT54J
D955
BAT54J
Q950
BC856BW
Q951
BC856BW
C954
100N
R952
100
K
R961
10
0K R962
10
0K
R969
100
K
C950
100N
R970
47
K
R963
10
K
D953
BAT54J
R954
10
R
C953
100N
GND
R950
100R
VCC
VCC
GND
R951
909K
C951
220nF/25V
U951
TL431
D950
12V
Q953
BC846BW
Q955
BC846BW
Q952
BC846BW
Q954
BC846BW
9K1
10N1000V
AC--L
AC--N
383K 390K
390K 390K
HV--DC
TBD
AC-DET
TBD
AC-SW
TBD
AC auto switch delay timeadjust
TBD
VCC 12V
DC DETECT output 11V 5mA when HV > 230VDC
GND
9PIN2.0MM
R964
180
K
R955
180
K
R972
1K
R971
10K
Q956
BC817-40
R973
470K R974
220K
C957
4U7