Sony CDX-424RF Service Manual page 26

Compact disc changer system
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IC204 BA8272F-E2
14
13
12
11
10
9
1
2
3
4
5
6
IC401 TC9464FN-EL
20
19
24
23
22
21
MICROCOMPUTER
INTERFACE
INTERFACE
CIRCUIT
CIRCUIT
DIGITAL FILTER CIRCUIT
ATTENUATOR OPERATIONAL CIRCUIT
DEEMPHASIS FILTER CIRCUIT
D-∆ MODULATION CIRCUIT
TEST
OUTPUT
CIRCUIT
CIRCUIT
ANALOG
FILTER
2
3 4
5
6
1
8
RESET
SWITCH
7
18
17
16
15
14 13
OSC
TIMING
GENERATOR
OUTPUT
CIRCUIT
ANALOG
FILTER
7
8
9
10
11
12
IC301 BA6287F
OUT1
1
VM
2
DRIVER
TSD
VCC
3
CONTROL LOGIC
POWER
SAVE
FIN
4
– 34 –
8
GND
7
OUT2
DRIVER
6
VREF
5
RIN

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