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2-20
1dB
VR
latch
8dB
VR
latch
1dB
VR
latch
8dB
VR
latch
3 to 7
decoder
4 to 13
decoder
1dB
VR
latch
Shift register (32BIT)
Strobe generate
circuit
Level shift circuit
8dB
VR
latch
2
3
L-OUTA
(SUB)
(C)
(C)
(R)
(R)
(L)
(L)
(SUB)
(LS)
(LS)
(RS)
(RS)
NC
VSS
VDD
TEST
L-INA
4
5
L-A-GNDA
L-OUTB
6
L-INB
7
8
L-A-GNDB
L-OUTC
9
L-INC
10
12
CS1
GND
13
CK
14
L-A-GNDC
11
26
R-OUTA
R-INA
25
24
R-A-GNDA
R-OUTB
Same as L-ch
Circuit
23
R-INB
22
21
R-A-GNDB
R-OUTC
20
R-INC
19
17
CS2
STB
16
DATA
15
R-A-GNDC
18
1
28
27
TC9482F (ELECTRONIC VOLUME IC16)
PIN ASSIGNMENT (74HCU04AFN : IC40 )
1
2
3
4
5
6
7
1A
1Y
2A
2Y
3A
3Y
GND
6A
6Y
5A
5Y
4A
4Y
Vcc
14
13
12
11
10
9
8
1
2
3
4
5
6
7
1A
1Y
2A
2Y
3A
3Y
GND
6A
6Y
5A
5Y
4A
4Y
Vcc
14
13
12
11
10
9
8
TC74 HCU04AFN (INVERTER IC31)
MC74HC14D (INVERTER IC85)
Содержание L75
Страница 1: ...SERVICE MANUAL L75 A V RECEIVER NAD ELECTRONICS INTERNATIONAL TORONTO NAD 2001 ...
Страница 2: ...SERVICE MANUAL L75 A V RECEIVER L75A V RECEIVER ...
Страница 22: ...2 23 2 24 1 BLOCK DIAGRAM ...
Страница 23: ...2 25 2 26 BLOCK DIAGRAM ...
Страница 24: ...2 27 2 28 2 WIRING DIAGRAM ...
Страница 25: ...2 29 2 30 3 SCHEMATIC DIAGRAMS MAIN SCHEMATIC DIAGRAMS ...
Страница 26: ...2 31 2 32 u COM GUIDE CIRCUIT DIAGRAM ...
Страница 27: ...2 33 2 34 INPUT SCHEMATIC DIAGRAM ...
Страница 28: ...AMP SPEAKER SUB TRANS AC OUTLET CIRCUIT DIAGRAM 2 35 2 36 ...
Страница 29: ...2 37 2 38 SURROUND CIRCUIT DIAGRAM ...
Страница 30: ...2 39 2 40 SURROUND CIRCUIT DIAGRAM ...
Страница 31: ...2 41 2 42 4 PRINTED CIRCUIT DIAGRAMS MAIN PCB ...
Страница 32: ...2 43 2 44 FRONT PCB ...
Страница 33: ...2 45 2 46 AMP SPEAKER PCB ...
Страница 34: ...2 47 2 48 SURROUND PCB ...