Sony CFD-S35CP Service Manual page 42

CFD-S35CP
– MAIN Board –
IC302 BD3870FS-E2
24
VCC/2
1
42
IC2 LC72137M-TLM-E
CE 1
DI
CCB
CL I/F
3
DO 4
MUTE 5
PROGRAMMABLE
MW/LW 6
BAND 7
ST-IND 8
BAND 9
UNIVERSAL
COUNTER
10
IF IN
23 22 21
TREBLE1 TREBLE2 BASS2
f =8kHz f =8kHz f
0 0 0
VCC/2
2 3 4 5
REFERENCE
DIVIDER
PHASE
12BITS
DETECTOR
CHARGE
DIVIDER
PUMP
UNLOCK
DETECTOR
POWER ON
RESET
SWALLOW
COUNTER
1/2
1/16,1/17
4BITS
20 19 18 17
BASS1
=80Hz f =80Hz
0
VCC/2
6 7 8 9
20
XOUT
19 XIN
18
LP-OUT
17 LP-IN
PD
16
15 VSS
14 VDD
MO/ST
13
FM IN
12
11 AM IN
16 15 14 13
LOGIC
VCC/2
VCC/2
10 11 12