Sony ICF-6800W - Oscillator Adjustments

ICF-6800W |
8. 10 MHz OSCILLATOR OUTPUT LEVEL
ADJUSTMENT
Setting:
BAND SELECTOR switch: SW
Procedure:
main board {conductor side)
external frequency counter
a
1. Short out the patterns as shown above.
2. Adjust L25 for a maximum reading on the VT VM.
The frequency counter should read 10 MHz
+100 Hz. If not, adjust the value of C213.
Frequency
lowers
Adjustment Location:
— main board —
9. 18.6MHz OSCILLATOR FREQUENCY
ADJUSTMENT
Setting:
BAND SELECTOR switch: SW
Procedure:
external
frequency couter
[Teapacitance [frequency] ain board
( .
3 pF ‘component side)
C20 4 pF
5 pF lowers
Adjust the value of C20 so that the frequency
reading on the frequency counter becomes
18.6 MHz +250 Hz.
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