Read Sony ICF-SW11 Service Manual online
— 6 —
SECTION 3
ELECTRICAL ADJUSTMENTS
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on Level meter.
L7
CT1-4
87.3MHz (75MHz)
108.3MHz (109.5MHz)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on Level meter.
L6
CT1-3
87.3MHz (75MHz)
108.3MHz (109.5MHz)
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on Level meter.
L4
CT1-2
520kHz
1,650kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on Level meter.
L1
CT1-1
600kHz
1,400kHz
AM IF ADJUSTMENT
Adjust for a maximum reading on Level meter.
T1
455kHz
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on Level meter.
L5
CT3
137kHz
295kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on Level meter.
L2
CT2
155kHz
260kHz
FM section
Setting
BAND switch : FM
Setting
BAND switch : FM
22.5 kHz frequency
deviation by
400 Hz signal
Output level : as low as possible
deviation by
400 Hz signal
Output level : as low as possible
telescopic antenna input
FM RF signal
generator
generator
Set
0.01
µF
MW/LW section
Setting
BAND switch : MW/LW
Setting
BAND switch : MW/LW
AM RF signal
generator
generator
Put the lead-wire
antenna close
to the set.
antenna close
to the set.
30% amplitude
modulation by
400 Hz signal
Output level : as low as possible
modulation by
400 Hz signal
Output level : as low as possible
SW section
Setting
BAND switch : SW1 – SW9
Setting
BAND switch : SW1 – SW9
30 % amplitude
modulation by
400 Hz signal
Output level : as low as possible
modulation by
400 Hz signal
Output level : as low as possible
telescopic antenna input
AM RF signal
generator
generator
Set
8pF
Set
Headphones jack (J1)
Level meter
32
Ω
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
• This adjustment should be executed after MW band adjustment
is completed because the LW and SW bands use the BAR ANT
and CV1 in common with the MW band.
Therefore, if MW band is adjusted, the LW and SW bands must
also be readjusted.
and CV1 in common with the MW band.
Therefore, if MW band is adjusted, the LW and SW bands must
also be readjusted.
• Preparation for SW band adjustment
After making sure that the MW band adjustment has completed,
set the pointer to the center of character of 6.0, 7.2, 11.8 or
21.6MHz which is reference position of dial character, and fix
the CV1 at this position.
set the pointer to the center of character of 6.0, 7.2, 11.8 or
21.6MHz which is reference position of dial character, and fix
the CV1 at this position.
(
) : Tourist model
0 dB=1µV
Click on the first or last page to see other ICF-SW11 service manuals if exist.