Ic Block Diagrams - Sony D-FJ61 Service Manual

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5-6. IC BLOCK DIAGRAMS

IC1 TA2104AFN(EL)
FM RF OUT
24
1
RF GND
TE
L 13942296513
IC71 NJM2100E
A OUTPUT
1
A –INPUT
2
A +INPUT
3
V–
4
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RF VCC AM RF IN FM OSC AM OSC
23 22 21
FM
OSC
AM
MIX
FM FM
RF MIX
2 3 4
FM RF IN AM LOW MIX OUT
CUT
V+
8
+
–
7 B OUTPUT
+ –
B –INPUT
6
B +INPUT
5
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8
OSC OUT ST LED IF REQ
20 19 18
AM
REQ
OSC
SW
ST
BUFF
IF
BUFF
LEVEL
BUFF
DET 1/8
AMIF FMIF
5 6 7
VCC AM IF IN FM IF IN GND
Q Q
3 6 7 1 3
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— 27 —
2 9 9 4 2 8
DET OUT LPF1
17 16 15 14
IF
AF
AF
BUFF
VCO
DIVIDE
FM
AM
ST/MO
DET DET
FM/AM
AGC
8 9 10 11
AGC QUAD R-OUT
1 5 0 5 8 2 9 9 4
m
co
9 9
LPF2
13
DECODE
MUTE
12
L-OUT
2 8 9 9