– 33 –
FM 100MHz Adjustment
BAND : FM
VOLUME control : as required
Connection Points :
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
MICROCOMPUTER SECTION
4MHz SYSTEM CLOCK Adjustment
BAND : AM
VOLUME control : as required
Connection Points :
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 :
RV405
RV403
RV412
RV411
RV406
RV401-412 : SW frequency
adjustment
T201 : FM frequency
coverage adjustment
RV410
T106 : FM tracking
adjustment
T107 : FM tracking adjustment
T104 : AM 1st IF adjustment
T105 : AM 1st IF adjustment
CT201 : AM 2nd local
adjustment
RV203 : AM 2nd local adjustment
CT101 : FM tracking
adjustment
CT102 : FM tracking
adjustment
RV404
RV409
RV408
RV402
RV401
RV407
RV201 : SSB zero beat adjustment
RV202 : SD adjustment
RV301 : FM stereo
adjustment
CT401: FM 100MHz
Adjustment
[MAIN BOARD] (Side B)
CT501: 4MHz system clock
Adjustment
[MICROCOMPUTER BOARD] (SIDE B)
1pF
1M
Ω
2.4k
Ω
0.01
µ
F
S
DC5V
2SK193-E
frequency
counter
TP
(4MHz)
TP
(4MHz)
servicing tool
[ MICROCOMPUTER BOARD] (Side A)
1pF
1M
Ω
2.4k
Ω
0.01
µ
F
S
DC5V
2SK193-E
frequency
counter
TP (FM OSC)
servicing tool
[ MAIN BOARD] (Side A)
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
