Sony CFD-V8L, Service Manual

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27
CFD-V8L
• IC BLOCK DIAGRAMS –MAIN SECTION–
IC1 TA2111N
IC301 TA2068N
AM RF IN FM RF OUT
FM RF IN
RF GND
AM LOW
-CUT
FM/AM
MIX OUT
AGC VCC
AM IF IN
FM IF IN
GND
TUN LED
ST LED
QUAD
FM OSC AM OSC AFC DET OUT MPX IN LPF2 LPF1 L-OUT R-OUT
7 5 4 3 1 2 6 8 9 12 10 11
14 15 16
17
18 19 21 20 24 23
RF VCC
22 13
DECODER
VCO
DIVIDER
ST/MONO
FM/AM
AF
AMP
FM
MUTE
AF BUFFER
FM
DET
AM
DET
AM
RF AMP
FM
RF AMP
FM
MIX
FM
OSC
AM
OSC
AM
MIX
TUN
LED
ST
LED
FM IF
AMP
AM IF
AMP
AGC
LEVEL
DET
21 22 23 24
2 3
5
4 6 7
8
9 10 1 11 12
13 14 15 16 17 18 19 20
LOGIC
7dB
26dB 26dB
7dB
ALC1
ALC2
DET
MIC
AMP1
1k
10k
NAB
AMP2
NAB
AMP1
ON
MUTE
MUTE MUTE
BUF AMP
A2
BUF AMP
A1
BUF AMP
B1
BUF AMP
B2
TAPE
TAPE
–––––
TAPE
–––––
LINE
RADIO
10k
10k
10k
1k
1k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
15k
6k
1k
6k
LINE
RADOI
TAPE
REC
AMP1
REC
AMP2
REF AMP
2.1
ON
ON
MONITOR
AMP
MONITOR
AMP
L. LIN
MIC I/EX L. RAD
L. LO REC
TAPE R. LIN MIC IN
R. LO LINE R. RAD
VCC
MIC
NF
R. PO
R. NF
R. RO
R. IN
GND
REF
L. IN
L. RO
L. NF
L. PO
AGC
• IC BLOCK DIAGRAMS –CONTROL/POWER SECTION–