Sony CFS-B7SMK2

— 11 —
5-1. CIRCUIT BOARDS LOCATION
SECTION 5
DIAGRAMS
• IC Block Diagram
30 29
4 5 6 7 8 9 10 11 12 13 14 15321
28 27 26 25 24 23 22 21 20 19 18 17 16
REG
FM FRONT-END
AM FRONT-END
VCO MPX REG.
1/2
COUNTER
1/2
COUNTER
PD1
PD2
MUTING
DECODER AMP
MONO/ST
SELECT
RIPPLE
FILTER
AUTOBLEND
BAND PASS
MUTE
TUNING
INDICATOR
FM IF/
DISCRI
AM
IF/DET
GND PLL LPF2 MPX REG VCO FM DISCRI MUTE AM OSC AFC FM OSC REG FM RF AM RF IN FM RF IN
BAND SELECT
AM IF IN
FM IF IN
TUNE IND
GND
VCC
L CH OUT
R CH OUT
ST IND/
VCO CHECK
PILOT DET LPF2 PILOT DET LPF2
PLL LPF1
AGC AFC2 AGC AFC1
RIPPLE
FILTER
FM GND FM/AM FE OUT
SECOND board
AUDIO board
MIC board
SUPPORT board
TUNER board
TRANSLATION (HEAD) board
BATT board
AC board
RELAY board
IC1 CXA1238S
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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