Read Sony ICF-C1200 Service Manual online
5
ICF-C1200
1-
C113
C108
CF101
L104
L101
C212
C202
C118
T101
C201
C207
C205
R204
C103
C211
C214
C213
C206
C204
C410
R113
R129
R112
R202
R205
R201
R203
BCE
Q201
BCE
Q202
C210
C215
C208
C203
C209
C120
C122
D108
CT102
IC201
1
5
8
16
12
9
D109
TP
(3V)
TP
(76K)
+
+
33k
Ω
TP1 (76k)
TP(3V)
1
µ
F
frequency
counter
counter
MAIN BOARD (SIDE A)
VCO Adjustment
Procedure :
Procedure :
FM RF signal
generator
generator
Carrier frequency : 98MHz
Modulation : No modulation
Output level : 1.38mV (–55dB)
Modulation : No modulation
Output level : 1.38mV (–55dB)
set
telescopic
antenna
terminal
antenna
terminal
0.01 F
µ
1. Connect the frequency counter to TP (76k) and TP (3V) as shown
the figure below.
2. Turn the set to 98MHz.
3. Adjust RV101 for 76kHz reading frequency counter.
3. Adjust RV101 for 76kHz reading frequency counter.
Standard value:75.5kHz to 76.5kHz.
Adjustment Location:
[MAIN BOARD] (SIDE A)
CT101: AM Tracking Adjustment
L102: AM Tracking Adjustment
L105: AM Frequvency Coverage Adjustment
RV101: VCO Adjustment
T101: AM IF Adjustment
L103: FM Tracking Adjustment
CT102: FM Tracking Adjustment
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