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42WP37
Z and H3-Board Block Diagram
Z
Sound Processor Board
A
TO J8
Z8
L
17
R
B
19
SCL3
10
SDA3
11
C
RESET
14
SLOT3.3V
5
SLOT3.3V
6
SLOT5V
3
SLOT9V
1
DIG12V
9
MUTE
15
DR15V
12
IC801
TO P5
Z5
SLOT9V
DR15V
11
1
D
IC802
SLOT5V
DIG12V
1
DIG12V
2
1
IC803
SLOT3.3V
1
5V
3
5V
STB5V
4
SOUND12V
7
SOUND12V
8
E
Z and H3-Board Block Diagram
1
IC2401
SOUND PROCESSOR
L IN
L OUT
Q2408
Q2302
32
20
L AMP
L AMP
R IN
R OUT
Q2410
Q2301
1
12
R AMP
R AMP
Q2406
28
B IN
100Hz LPF
IC2304
AVR 9V
29
ADD
VCC
31
2
1
27
MS IN
SCL
SDA
PORT
15
16
17
9V
Q2305
Q2306
MUTE
9V
POWER ON MUTE
Q2303
MUTE
2
2
2
2
3
IC2302
AUDIO AMP
H3
Z6
H37
L+
11
AUDIO
16
1
1
OUT(L)
L-
17
4
3
20
AMP STB SW
21
4
IC2301
AUDIO AMP
H3
Z7
H37
R+
11
AUDIO
16
1
1
OUT(R)
R-
17
3
3
20
AMP STB SW
21
4
ERROR
DETECT
Q2333
Q2334
Q2370
4
5
JK8500
SPEAKER
+
TERMINAL
(L)
-
JK8500
SPEAKER
+
TERMINAL
(R)
-
6
Z and H3-Board Block Diagram
7
8
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