Read Sony ICF-S79 / ICF-S79L / ICF-S79V Service Manual online
• IC Block Diagrams
– MAIN BOARD –
– MAIN BOARD –
IC1
TA2030FN (EL)
IC2
CXA1019M
FM FE
TUNING METER
AM IF DET AGC
AF POWER AMP
FM IF
FM/AM
IF OUT
FM RF IN
FE GND
NC
AM RF IN
FM RF
FM OSC
REG OUT
AFC
AM OSC
NF
VOL
FM DISCRI
GND
FM/AM BAND
SELECT
FM IF IN
AM IF IN
NC
METER
IF GND
DET OUT
AFC AGC
AFC AGC
AF IN
RIPPLE FILTER
AF OUT
VCC
GND
AM FE
FM
DISCRIMINATOR
14
13
11
9
8
7
2
1
6
5
3
4
15
16
17
18
19
20
21
22
23
24
25
26
27
28
12
10
MIX OUT
OSC OUT
FM OSC
TV OSC
VCC
FM RF
TV RF
GND
TV IN
TV BY
RF GND
FM BY
FM IN
MODE SW
PW SW
IF OUT
16 15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
TV
OSC
BUFFER
MIX
FM RF
AMP
IF
AMP
POWER/MODE
SWITCH
TV RF
AMP
BUFFER
FM
OSC
– 2 –
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