Audio Board - NAD M5 C/AH Service Manual

7. AUDIO BOARD

25
DSDL1 DVSS
26
DSDR1 DVDD
27
DSDL2 MCLK
28
DSDR2 BICK
29
DSDL3 PDN
30
DSDR3 ACKSN
DIF0 31
DIF0 CAD0
32
ROUT4- DZF1
33
ROUT4+ DZF2
34
VREFH DZF3
35
AVDD LOUT1+
36
AVSS LOUT1-
8 4
mute
MUTE CIRCULT
3-30
12
11
10
9
8
7
6
5
4 7 8
GND 3Y
3 6 9
2Y 3A
2 5 10
2B 3B
1 4 11
2A 4Y
3 12
1Y 4A
2 13
1B 4B
1 14
1A VCC
232 AND IR INTERFACE
8 4 8 4
4 8 4 8
VCC GND VCC GND
VEE V+ VEE V+
VO V- VO V-
V- VO V- VO
V+ VEE V+ VEE
GND VCC GND VCC
2ch mute
ANALOG AUDIO OUTPUT
FROM SWITCH PSU BOARD
FROM DECODE BOARD
1 2 3 4 5
- +
- +
R792
10K
D619
1N4148
3
IN
4 2
O OUT
1
G
7 14
1
OSD
DIGITAL AUDIO OUTPUT
3-31