Sony ICF-6800W - Page 42

ICF-6800W
12. PRESELECTOR FREQUENCY COVERAGE
AND TRACKING ADJUSTMENT
Setting:
BAND SELECTOR switch:
MODE switch:
Procedure:
AM rf signal
generator vom
30 % amplitude
(range: 0.5 ~
5 V ac)
modulation
by
EARPHONE
40 Hz signal
1. Turn the PRESELECTOR shaft to make the
springs of L7 and L8 visible as shown on the right.
2. Adjust the nuts so that the springs expose approxi-
mately 5 mm (3/16)
full-counterclock- | nut of
: ieee mae L7 and L8
full-clockwise CTl
Tune in the nut of
Rf
signal
PRESELECTOR
a
|
Frequency
|
_
Shaft
position
VOM
reading
Repeat step 1 to confirm the maximum indication
of the VOM. If not, repeat steps 1 through 3.
—44~—
CT2 CT!
Core positions of L7 and L&
approx. 5mm
(3/16)
nut of L7
nut of L8
PRESELECTOR shaft