Sony ICF-SW07 Service Manual page 32

FM STEREO Adjustment
BAND : FM
ST • MONO switch : ST
VOLUME control : as required
Connection Points :
servicing tool
1pF
S
1M Ω
TP (76k)
TP (DET)
100 µ F
Note : Connect a capacitor (100µF) to TP (DET) during TP (GND).
Procedure :
1. Adjust RV301 to obtain a 76kHz on the frequency counter.
Standard value : 75.7 – 76.3MHz
Adjustments Location : MAIN board (see page 33)
DC5V
2.4k Ω
frequency
0.01 µ F
counter
2SK193-E
[ MAIN BOARD] (Side A)
TP (GND)
SD Adjustment
BAND : FM
VOLUME control : as required
Connection Points :
[ MAIN BOARD]
(Side A)
oscilloscope
[ MAIN BOARD] (Side A)
Procedure :
1. Set the frequencies of the FM RF SSG and the frequency dis-
play of the set to 93MHz.
2. Adjust RV202 so that a waveform on oscilloscope is as shown
below.
Adjustments Location : MAIN board (see page 33)
– 32 –
FM RF SSG
TP(ANT)
22.5kHz frequency
deviation by 400Hz signal.
Output level : 54dB µ
0.01uF
TP(SD)