Read Sony ICF-704S Service Manual online
7
ICF-704S
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.
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L7
5.85 MHz
CT3
18.25 MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L6
5.85 MHz
CT2
18.25 MHz
SECTION 3
ELECTRICAL ADJUSTMENTS
SW SECTION
BAND switch : SW
telescopic
antenna terminal
antenna terminal
10pF
AM RF signal
generator
generator
400Hz, 30%
AM modulation
Output level: as low as possible
AM modulation
Output level: as low as possible
set
16
Ω
set
v
jack (J1)
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.
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
CT1-2
1,650 kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L4
600 kHz
CT1-1
1,400 kHz
MW SECTION
BAND switch : MW
16
Ω
set
v
jack (J1)
level meter
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