Wiring Diagram - NAD T955 C Service Manual

WIRING DIAGRAM

ISC1
9
VSS1
8
AGND1
7
AGND1
6
VPP1
5
ACOFF1
4
DGND
3
SC
2
LED1
1
CH1
P101A P101A
FROM TRANSFORMER FROM TRANSFORMER
P205B P205B P201B P201B
P202B P202B
ISC1
1
VSS1
2
AGND1
3
AGND1
4
VPP1 P213B P213B
5
ACOFF1 SC
6 1
DGND +5.5V
7 2
SC STBY
8 3
LED1 DGND
9 4
ISC1
9
VSS1
8
AGND1
7
AGND1
6
VPP1
5
ACOFF1
4
DGND
3
SC
2
LED1
1
CH2
P101A P101A P101A P101A
FROM TRANSFORMER
P203B P203B
P204B P204B P206B P206B
ISC2
1
VSS2
2
AGND2
3
AGND2
4
VPP2
5
ACOFF2
6
DGND
7
SC
8
LED2
P212A P212A
9
TO P504B
P504B P504B
P501B P501B
FROM FUSE
ISC1 ISC1
9 9
VSS1 VSS1
8 8
AGND1 AGND1
7 7
AGND1 AGND1
6 6
VPP1 VPP1
5 5
ACOFF1 ACOFF1
4 4
DGND DGND
3 3
SC SC
2 2
LED1 LED1
1 1
CH3 CH4
P101A P101A
P208B P208B
ISC3 ISC4
1 1
VSS3 VSS4
2 2
AGND3 AGND4
3 3
AGND3 AGND4
4 4
VPP3 VPP4
5 5
ACOFF3 ACOFF4
6 6
DGND DGND
7 7
SC SC
8 8
LED3 LED4
9 9
P505B P505B
1
2 1
3 2
4 C
5
P506B P506B
1
2
3
4 POWER LED BOARD
P502B P502B
FROM AC INLET
STANDBY BOARD
- 6 -
ISC1
9
VSS1
8
AGND1
7
AGND1
6
VPP1
5
ACOFF1
4
DGND
3
SC
2
LED1
1
P101A P101A CH5
FROM TRANSFORMER FROM TRANSFORMER
P207B P207B P209B P209B
P210B P210B
ISC5
1
VSS5
2
AGND5
3
AGND5
4
VPP5
5
ACOFF5
6
DGND
7
SC
8
LED5
9
POWER SUPPLY BOARD
P701B P701B
1
2
3
TRIGGER BOARD
P302A P302A
SC
1
+5VD
2
P301A P301A STBYLED
3
LED1
1 4
LED5
2 5
LED4
3 6
LED3
7
LED2
8
DGND
9
DISPLAY BOARD
P211B P211B
SC
1
+5.5V
2
STBYLED
3
LED1
4
LED5
5
LED4
6
LED3
7
LED2
8
DGND
9
P401A P401A
SC
1
+5VD
2
STBY
3
DGND
4