Audio Signal Processing Stage - Sanyo PLC-XP57L Service Manual

Chassis Description

Audio signal processing stage

L 1
PC 1
AUDIO-IN/OUT
R 12
(VARIABLE OUTPUT)
L 5
PC 2
AUDIO-IN R 14
L 2
VIDEO
AUDIO-IN R 15
Q5004
Q5303
Q5007
264
AUDIO_MUTE
263
M_OUT
143
232
46
84
325
PW_SCL_3V
246
PW_SDA_3V
AV BOARD
10
AUDIO_SW1
9
AUDIO_SW2
Q5002
3
L
Q5001
13
R
IC5002
SW
1 2
6 5
K40E K40C
7 15 47 45
K10R
K10P
Monitor out ON : L
Monitor out OFF : H
4
16
AUDIO_SW1
IC3251
15
5 BUFFER
AUDIO_SW2
2
6
SP_MUTE
IC3252
5
BUFFER 3
SP OFF
2
PW_SCL_5V
IC281
15
VOLUME
DAC
3
PW_SDA_5V
DRIVE BOARD
IC1651
PRE AMP.
<EL2244>
15 10 5
3
2 7 3
1
12
3,14
5
6
SP OFF
K16R
12 13
11
K8T
Mute: H
Mute: H
- 42 -
IC1631
L-AMP.
<TDA7056>
7
L
7 5 14 3
4
17
5
1
1
14
2
17
R
7
IC1632
R-AMP.
<TDA7056>
Mute: L
Q1681/Q1682
MAIN BOARD
SP901
L
SP902
R