Read Sony ICF-703 / ICF-703L Service Manual online
– 6 –
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
AM RF signal
generator
generator
400Hz, 30%
AM modulation
Output level: as low as possible
AM modulation
Output level: as low as possible
• 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.
ICF-703:
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L4
86.5 (87.35) MHz
CT1-3
109.5 (108.25) MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L6, L7
86.5 (87.35) MHz
CT1-4
109.5 (108.25) MHz
NOTE :
( ) : Italian model
ICF-703L:
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L4
86.5 MHz
CT1-3
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L6, L7
86.5 MHz
CT1-4
109.5 MHz
SECTION 3
ELECTRICAL ADJUSTMENTS
FM SECTION
BAND switch : FM
telescopic
antenna terminal
antenna terminal
0.01
µ
F
FM RF signal
generator
generator
400Hz, 30% FM modulation
frequency deviation
frequency deviation
±
22.5kHz
Output level: as low as possible
set
16
Ω
set
earphone jack (EPJ1)
level meter
• 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.
AM/MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L5
520 (516.5) kHz
CT1-2
1,650 (1,631.5) kHz
AM/MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1-1
600 (620) kHz
CT1-1
1,400 kHz
NOTE :
( ) : Italian model
AM/MW IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
455 kHz
AM (703)/MW (703L) SECTION
BAND switch : AM
16
Ω
set
earphone jack (EPJ1)
level meter
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