NAD VISO 1 Service Manual page 23

DDFA BOARD (3)
M CK 0
3V3
D1
R4 4
1k
LE D
D2
R4 5
I NT ERRUP T
1k
LE D
G ND
Triangle buffers
C3 V3
C3 V3
C4 1 C4 2
1uF 1uF
U3
1 5
VCC
2
G ND
R3 8
3 4
G ND C1 08_0
C4 4
NC7 SV8 6P5X 1R
C3 V3
No F i t
G ND
U4
1 5
VCC G ND
2
R4 0
3 4
G ND C1 08_1
C4 6
NC7 SV8 6P5X 1R
C3 V3
No F i t
G ND
U5
1 5
VCC G ND
2
R4 1
3 4
G ND C1 08_2
C5 0
NC7 SV8 6P5X 1R
C3 V3
No F i t
G ND
U6
1 5
VCC G ND
2
R4 2
3 4
G ND C1 08_3
R4 3
C5 1
NC7 SV8 6P5X 1R
75R
No F i t
G ND
C5 2
G ND
10pF
G ND
23
C3 V3
C4 7 C4 8
1uF 1uF
G ND