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— 12 —
FM VCO Adjustment
Procedure :
1. Connect frequency counter to the positions shown below.
2. Tune the set to 98MHz.
3. Adjust RV1 so that the frequency counter reading becomes
2. Tune the set to 98MHz.
3. Adjust RV1 so that the frequency counter reading becomes
75,000 Hz.
Specification Value :
Adjustment Location : MAIN board (See page 13)
RED
10.70MHz
BLUE
10.67MHz
ORANGE
10.73MHz
BLACK
10.64MHz
WHITE
10.76MHz
0.01
µ
F
FM RF SSG
to ANT IN terminal
Carrier frequency : 98MHz
IF frequency : According to
the color of CF1.
Modulation : no modulation
Output level : 0.1V (100dB)
IF frequency : According to
the color of CF1.
Modulation : no modulation
Output level : 0.1V (100dB)
color
mark
mark
CF1
Frequency counter
75,950 – 76,050 Hz
Frequency counter
0.01
µ
F
+
–
–
33k
Ω
IC1 Pin
4
IC1 Pin
7
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