Sony ICF-703S, Service Manual

Page: 6 / 14

– 6 –
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
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.
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L7 5.8 MHz
CT6 18.5 MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L6 5.8 MHz
CT5 18.5 MHz
SECTION 3
ELECTRICAL ADJUSTMENTS
SW SECTION
BAND switch : SW
telescopic
antenna terminal
12pF
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
set
16
Ω
set
v 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.
MW IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
455 kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L5 520 kHz
CT1-4 1,650 kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1 600 kHz
CT1-1 1,400 kHz
MW SECTION
BAND switch : MW
16
Ω
set
v jack (EPJ1)
level meter