Arcam DiVA AVR200 - Audio, Key, and Main Board IC Block Diagrams

SURROUND SOUND RECEIVER
AA
AA
VV
VV
RR
RR
22
22
00
00
00
00
- 44 -
AC3 BOARD
U114: 74HCU04
11A 14 VAC
21Y 13 6A
32A 12 6Y
42Y 11 5A
53A 10 5Y
63Y 94A
7GND 84Y
AC3 BOARD
U118, U119: 74HC00
DIGITAL
BOARD
U762: 74HC00
A1
B1
Y1
A2
B2
Y2
GND
VCC
B4
A4
Y4
B3
A3
Y3
1
2
3
4
5
6
7
14
13
12
11
10
9
8
AUDIO BOARD
U301: TC9273N
2S1
1
V
SS
26
V
DD
27 S1
3S2 26 S2
4S3 25 S3
5S4 24 S4
6S5 23 S5
7S6 22 S6
8S7 21 S7
9S8 20 S8
10S9 19 S9
11S10 18 S10
12S11
13
GND
14
CK
15
DATA
16
STB
17 S11
(L-ch)
10bit
Latch
Circuit
LEVEL SHIFT + SHIFT RESISTER
CIRCUIT
(R-ch)
10bit
Latch
Circuit
(Same
as L-ch
Circuit)
AC3 BOARD
U123, U125,
U130-U132: 7805
POWER AMP BOARD:
Q565C: 7812
OUT
IN
GND
AC3 BOARD
U115, U117, U120: 74HC74
SD RD
D
Q
1Q
GND
1Q
Q
FF1
CP
1SD 1D 1CP 1RD1
10 12 11 13 14
3 2 4
7 5 6 9 8
SD RD
D
Q
2Q 2Q
Q
FF2
CP
2SD 2D
VCC 2CP 2RD