Sony ICF-SW07 Service Manual page 33

FM 100MHz Adjustment
BAND : FM
VOLUME control : as required
Connection Points :
servicing tool
1pF
S
1M Ω
TP (FM OSC)
Procedure :
1. Tune the set to FM 89.3MHz.
2. Adjust CT401 to obtain a 100MHz on the frequency counter.
Standard value : 99.99997 – 100.00003MHz
Adjustments Location : MAIN board
Adjustments Location :
[MAIN BOARD] (Side B)
CT201 : AM 2nd local
adjustment
CT401: FM 100MHz
Adjustment
RV301 : FM stereo
adjustment
RV202 : SD adjustment
RV201 : SSB zero beat adjustment
DC5V
2.4k Ω
frequency
0.01 µ F
counter
2SK193-E
[ MAIN BOARD] (Side A)
RV203 : AM 2nd local adjustment
MICROCOMPUTER SECTION
4MHz SYSTEM CLOCK Adjustment
BAND : AM
VOLUME control : as required
Connection Points :
1pF
TP
(4MHz)
[ MICROCOMPUTER BOARD] (Side A)
Procedure :
1. Tune the set to AM 150kHz.
2. Adjust CT501 to obtain a 4.04MHz on the frequency counter.
Standard value : 4.038 – 4.042MHz
3. Tune the set to AM 1010kHz.
4. Make sure that the frequency counter reading is 3.9670 – 3.9730
MHz
Adjustments Location :
[MICROCOMPUTER BOARD] (SIDE B)
T105 : AM 1st IF adjustment
T104 : AM 1st IF adjustment
RV404
RV401
RV402
RV403
RV405
RV407
CT101 : FM tracking
adjustment
CT102 : FM tracking
adjustment
T201 : FM frequency
coverage adjustment
– 33 –
servicing tool
DC5V
2.4k Ω
frequency
0.01 µ F
counter
2SK193-E
S
1M Ω
TP
(4MHz)
CT501: 4MHz system clock
Adjustment
T107 : FM tracking adjustment
T106 : FM tracking
RV410
adjustment
RV409
RV406
RV401-412 : SW frequency
RV411
RV408
RV412
adjustment