– 30 –
SW FREQUENCY Adjustment
BAND : AM
VOLUME control : as required
Connection Points :
Note :
Disconnect a loop antenna ASSY from the antenna board,
and connect two dummy antenna coils in series connection.
ANTENNA
MDULE
(ANTENNA
BOARD)
ANTENNA
CONTROLLER
level meter
16
Ω
J302
(headphone)
SET
(MAIN
BOARD)
Procedure :
1. Align the set with the frequency of the AM RF signal generator
shown on the table below.
2. Align RV401 - RV412 for each band meter band until the high-
est reading is obtained on the level meter.
AM RF SSG frequency
Meter band
Adjust part
2.4MHz
120mb
RV401
3.3MHz
90mb
RV403
3.95MHz
75mb
RV405
4.9MHz
60mb
RV407
6.075MHz
49mb
RV409
7.25MHz
41mb
RV411
9.7MHz
31mb
RV402
11.825MHz
25mb
RV404
13.7MHz
22mb
RV406
15.35MHz
19mb
RV408
18.275MHz
16mb
RV410
23.5MHz
13mb
RV412
Caution :
Always perform the SW Frequency Adjustment after hav-
ing replace the main circuit board or antenna circuit board.
Adjustments Location : MAIN board (see page 33)
AM RF SSG
TP
(SG GND)
Two dummy antenna coils 1
µ
H (1-410-497-11)
TP
(DUMMY IN)
30% amplitude modulation
by 400Hz signal.
Output level :
as low as possible
[ANTENNA BOARD]
(Side B)
0.5pF
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