Sony WX-C55 Service Manual page 52

IC802 BA3834F
PEAK
HOLD
68Hz
B.P.F.
IC680 BA3918-V2
1
52
18
REGISTER REGISTER REGISTER
PEAK PEAK
HOLD HOLD
170Hz 420Hz
B.P.F. B.P.F.
DIFFERENTIAL
AMPLIFIER
1 2 3 4
5 6 7 8
REGULATOR
OVER VOLTAGE
PROTECT
–
+
2 3 4 5 6 7
15
17 16
MULTIPLEXER
REGISTER REGISTER
PEAK PEAK PEAK
HOLD HOLD HOLD
1kHz 2.4kHz
5.9kHz
B.P.F. B.P.F.
B.P.F.
9
8 9 10 11
13
14 12 11 10
DECODER
REGISTER REGISTER
PEAK
HOLD
14.4kHz
B.P.F.
12