Audio Board; Main Board - Sony HCD-CP2 Service Manual

– AUDIO Board –
IC602 µPC1330HA
COMPARATER
2 3 4
1
SW R1 GND SW P1 CONT GND
– MAIN Board –
IC301 TDA7439
30 29 28 27 26 25 24 23 22 21 20 19
IIC BUS
DECODER &
LATCH
VREF
SUPPLY
1 2 3 4
42
INVERTER
5 6 7 8 9
VCC SW P2 GND SW R2
18 17
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
GAIN AMP
MULTIPLEXER
5 6 7 8 9 10
16
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
GAIN AMP
MULTIPLEXER
11 12 13 14 15