NAD T 751 Service Manual page 33

MULTI-CHANNEL BOARD
U601: M62447SP
MULTI-CHANNEL BOARD
U602: TC9164AN
VSS
L-S1 2
L-S2 3
L-S3 4
L-S4 5
L-COM1 6
L-S5 7
L-S6 8
L-COM2 9
L-S7 10
L-S8 11
L-COM3 12
L-ST 13
SHIFT REGISTER
S-VIDEO & VIDEO BOARD
U402-U404: BA7625
MONITOR OUT 1
GND 2
IN5 3
GND 4
IN4 5
CTL E 6
INT3 7
CTL D 8
GND VDD
1 14 28
16 IN1
15 CTL A
6dB
LOGIC
14 VOUT1
13 VCC
12 IN2
6dB
LOGIC
11 CTL B
10 VOUT 2
9 CTL C
MULTI-CHANNEL BOARD
U605-U611: NJM5532
AMPLIFIER 1
27 R-S1
26 R-S2
NON-INVERTING
25 R-S3
24 R-S4
23 R-COM1
22 R-S5
21 R-S6
20 R-COM2
MAIN BOARD
19 R-S7
U723: NJM78M56FA
18 R-S8
17 R-COM3
16 DATA
15 CK
43
1
OUTPUT
INVERTING
2
INPUT
– + + –
3
INPUT
4
V –
1
INPUT
2
GND
AMPLIFIER 2
8
V +
7
OUTPUT
INVERTING
6
INPUT
NON-INVERTING
5
INPUT
3
OUTPUT