NAD M3 Service Manual page 29

4. ENCODER AND CONNECT BOARD
CZ94
1 -24VR
2 +24VR
3
4
ZEROL
5
ZEROR
6
OPSEL_STB
7
VOLR_STB
8
OPSEL_DATA
9
VOLR_DATA
10
OPSEL_CLK
11
VOLR_CLK
12
HDATA
13
VOLA
14
FUNC
15
VOLL_STB
16
HCLK
17
VOLL_DATA
18
TONE
19
VOLL_CLK
20
21
22
23
24
25 -24VL
26 +24VL
FROM PRE_SCH CZ201
ECZ1
4
3
2
1
CON4 +5V
ENCODE BOARD
5V
-24VL
+24VL
CZ93
FROM BAL_SCH CZ501
ES1
EC16B243040F
+5V
ER1
EC1
10K
0.1U
ER2
220
EC2
0.1U
ER3
220
ER4
10K
EC3
EC4
0.1U
0.1U
+5V
Q990
C2983
C990
R990
5.6K
D990
1OU/35V
24V
C991
100N
Q991
C2983
R991
5.6K
C994
D991
24V
C993
10U/35V
100N
-24VR
+24VR
3-15
EC5
0.1U
CZ97
16
15
-24VL 14
+24VL 13
TONE
12
VOLA
11
VOLL_CLK
10
VOLL_DATA
9
VOLL_STB
8
VOLR_CLK
7
VOLR_DATA
6
VOLR_STB
5
FUNC
4
HDATA
3
HCLK
2
ZEROR
1
FROM PSU_SCH CZ73
CZ92
ZEROL
16
OPSEL_STB
15
OPSEL_DATA
14
OPSEL_CLK
13
TRIG+
12
TRIG-
11
RXD
10
TXD
9
5V
8
7
IR OUT
6
IR IN
5
+24VR 4
-24VR 3
2
1
FROM PSU_SCH CZ75