Read Sony ICF-C390 / ICF-C390L Service Manual online
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AM Section
Band switch : AM (ICF-C390)
: LW (French model)
: MW or LW (ICF-390L : AEP, UK model)
: MW or LW (ICF-390L : AEP, UK model)
Volume
: MAX
FM Section
Band switch : FM
Volume
Volume
: MAX
• 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.
( ) : Italian model only
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455kHz
EXCEPT French model
AM <MW> FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
(516.5kHz)
CT4
1,650kHz (1,631.5kHz)
AM <MW> TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 : ICF-390
600kHz
L1–1 : ICF-390L
CT1
1,400kHz
ICF-C390L
EXCEPT French model
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
CT6
145kHz
confirmation
261kHz
French model
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
145kHz
CT4
265kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 – 2 (AEP, UK model)
160kHz
L1 (French model)
CT5
240kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
86.5MHz
(87.35MHz)
CT3
109.5MHz
(108.25MHz)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
CT2
109.5MHz
(98MHz)
Adjustment Location : Main board (See page 8)
FM RF signal
generator
generator
22.5kHz frequency
deviation by 400Hz signal.
Output level : as low as possible
deviation by 400Hz signal.
Output level : as low as possible
set
FM ANT
set
8
Ω
speaker terminal
level meter
SECTION 4
ELECTRICAL ADJUSTMENTS
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
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