Read Sony CFD-V34 Service Manual online
— 13 —
FM VCO Adjustment
Procedure :
1. Connect frequency counter to the positions shown below.
2. Tune the set to 98MHz.
3. Adjust RV1 for 75,950Hz to 76,050Hz reading on the frequency
2. Tune the set to 98MHz.
3. Adjust RV1 for 75,950Hz to 76,050Hz reading on the frequency
counter.
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)
Frequency counter
0.01
µ
F
+
–
33k
Ω
IC1 Pin
4
IC1 Pin
7
RED
10.70MHz
BLUE
10.67MHz
ORANGE
10.73MHz
BLACK
10.64MHz
WHITE
10.76MHz
color
mark
mark
CF1
Adjustment Location : MAIN board (Component side)
CF1
T2
L2
L4
L3
T1
RV1
IC701
CV1 (1/4)
CV1 (2/4)
L1
L2
FM Tracking
CV1 (3/4)
L3
AM Tracking
FM Frequency Coverage
Adjustment
Adjustment
CV1 (4/4)
L4
ANT IN
AM Frequency Coverage
Adjustment
Adjustment
T2 : AM IF
RV1 : FM VCO
T1 : FM IF
IC1 : VCO IN
FM IF IN
’
‘
IC1
15
11
16
18
1
30
4
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