Ic Block Diagram - Arcam DiVA AVR200 Service Manual

SURROUND SOUND RECEIVER

IC BLOCK DIAGRAM

AC3 BOARD
U101: 74HC151
GND
AC3 BOARD
U102: 74HC157
AC3 BOARD
U104, U109, U116,
U129, U134: NE5532
D3 1 16 V
CC
D2 2 15 D4
D1 3 14 D5
D0 4 13 D6
Y 5 12 D7
W 6 11 A
ST 7 10 B
8 9 C
2
1A
3
1B
5
2A
6
2B
11
3A
10
3B
14
4A
13
4B
15
G
1
A/B
AMPLIFIER 1
OUTPUT 1
INVERTING
2
INPUT
NON-INVERTING
3
INPUT
4
V –
7
ST
4
S0
4
S0
S0
3
S1
3
S1
S1
2
S2
2
S2
S2
1
S3
1
S3
S3
15
S4
15
S4
S4
14
S5
14
S5
S5
13
S6
13
S6
S6
12 S7
12
S7
S7
11
A
10
B
9
C
4
7
9
12
AMPLIFIER 2
8
V +
7
OUTPUT
– + + –
INVERTING
6
INPUT
NON-INVERTING
5
INPUT
- 41 -
6
5
1Y
A/B 1 16 VCC
1A 2 15 G
2Y
1B 3 14 4A
1Y 4 13 4B
2A 5 12 4Y
3Y
2B 6 11 3A
2Y 7 10 3B
GND 8 9 3Y
4Y
A A V V R R 2 2 0 0 0 0
A A V V R R 2 2 0 0 0 0
W
Y