Sony SRF-T615 Service Manual page 6

FM VCO Adjustment
Procedure :
FM RF signal
generator
Carrier frequency : 98MHz
Modulation : no modulation
Output level : 100dB µ V (100mV)
1. Connect the frequency counter to 3 to 4 pins of IC201 as shown
the figure.
2. Turn the set to 98MHz.
3. Adjust RV201 for 76.0kHz reading on frequency counter.
Standard Value : 75.95 –76.05kHz
Adjustment Location :
RV201 : FM VCO Adjustment
L103 : AM Frequency Coverage
Adjustment
CT101 : AM Tracking Adjustment
0.01 µ F
TP102 (RF IN)
MAIN board
[MAIN BOARD] (SIDE B)
IC101
CT102 : FM Tracking Adjustment
– 6 –
Connect Location :
[MAIN BOARD] (SIDE A)
C302
R203
C209
C208
C130
10
6
C133
IC201
1
5
R202
C205
IC201 4
CF101
IC201 3
Q102
R114
117
C109 R111
R110
C113
R105
C104 C110
C132
-1 -2
C111
C105
D102
-3
C102
R109
C103
C107
R103
1-674-988-
T101 : AM IF Adjustment
L101 : FM Tracking Adjustment
L104 : AM Tracking Adjustment
frequency counter
1 µ F
33k Ω