NAD T761, Руководство по обслуживанию

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1
INPUT
3
OUTPUT
2
GND
49
DIGITAL OUT BOARD
U761,U762: 74HCT00
1 1A
2 1B
3 1Y
4 2A
5 2B
6 2Y
7 GND
14 V
CC
13 4B
12 4A
11 4Y
10 3B
9 3A
3Y 8
MULTI-CHANNEL BOARD
U601: M62446FP
1 OUT4 42 DVDD
2 OUT3 41 CLK
3 OUT2 40 DATA
4 OUT1 39 LATCH
5 AVDD 38 DGND
6 SWin 37 AGND
7 GNDS 36 SWout
8 SRin 35 SRout
9 SLin 34 SLout
10 GNDC 33 Cout
11 Cin 32 Rout
12 GNDR 31 Lout
13 Rin 30 AVSS
14 GNDL 29 CL1
15 Lin 28 CL2
16 BYPASSR 27 CR1
17 BYPASSL 26 CR2
18 LTRE 25 RTRE
19 LBASS3 24 RBASS3
20 LBASS2 23 RBASS2
21 LBASS1 22 RBASS1
OUT-
PUT
PORT
MCU
I/F
volume
volume
volume
volume
volume
volume
tone tone
MULTI-CHANNEL BOARD
U605-U607, U609-U611: NJM5532
AMPLIFIER 1
OUTPUT
INVERTING
INPUT
NON-INVERTING
INPUT
V –
AMPLIFIER 2
V +
OUTPUT
INVERTING
INPUT
NON-INVERTING
INPUT
1
2
3
4
8
7
6
5
+ – – +
S-VIDEO & VIDEO BOARD
U402-U404: BA7625
1 MONITOR OUT 16 IN1
2 GND 15 CTL A
3 IN5 14 VOUT1
4 GND 13 VCC
5 IN4 12 IN2
6 CTL E 11 CTL B
7 INT3 10 VOUT 2
8 CTL D 9 CTL C
6dB
LOGIC
LOGIC
6dB
MULTI-CHANNEL BOARD
U602: TC9164AN
1
2 L-S1
VSS
SHIFT REGISTER
LEVEL
SHIFTER
LEVEL
SHIFTER
LA
TCH CIRCUIT
LA
TCH CIRCUIT
14
GND
28
VDD
27 R-S1
3 L-S2 26 R-S2
4 L-S3 25 R-S3
5 L-S4 24 R-S4
6 L-COM1 23 R-COM1
7 L-S5 22 R-S5
8 L-S6 21 R-S6
9 L-COM2 20 R-COM2
10 L-S7 19 R-S7
11 L-S8 18 R-S8
12 L-COM3 17 R-COM3
13 L-ST 16 DATA
15 CK
MAIN BOARD
U723: NJM78M56FA