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5-3.
SCHEMATIC DIAGRAM
– 15 –
• IC Block Diagrams
IC1 CXA1019S
30
29 28 27 26
25
24
23
22
21
20
19
AM IF DET AGC
TUNING
METER
AF POWER AMP
AM FE
FM
DISCRIMINATOR
FM FE
1
2
3
4
5
6
7
8
9
10
11
12
IC2 BA6640F-E2
18 17
16
15 14
13
12
11 10
RIPPLE FILTER
–
+
PWR1
INV
MUTE
+
–
PWR2
+
–
1
2
3
4
5
6
7
8
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
W or less unless otherwise
4
specified.
•
: internal component.
f
• C : panel designation.
• A : B+ Line.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 3 V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
) : MW
〈〈
〉〉 : SW
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
f
: MW/SW
– 16 –
ICF-J1
18 17 16
FM IF
13
14
15
9
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