– 7 –
SECTION 3
ELECTRICAL ADJUSTMENTS
• 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 455kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 520kHz
CT4 1,650kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2-1 600kHz
CT1 1,400kHz
3-1. MW SECTION
BAND switch : MW
Put the lead-wir
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
16 Ω
set
v
jack (EPJ401)
level mete
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
3-2. LW SECTION
BAND switch : LW
Put the lead-wir
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
16 Ω
set
v jack (EPJ401)
level mete
• 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.
L5 5.8MHz
CT5 18.5MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 5.8MHz
CT3 18.5MHz
3-3. SW SECTION
BAND switch : SW
telescopic
antenna terminal
12 pF
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
set
16 Ω
set
v
jack (EPJ401)
level mete
3-4. FM SECTION
BAND switch : FM
telescopic
antenna terminal
0.01
µ
F
FM RF signal
generator
400Hz, 30% FM modulation
frequency deviation
±
22.5kHz
Output level: as low as possible
set
16 Ω
set
v
jack (EPJ401)
level mete
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
CT6 145kHz
< confirmation > 265kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2-2 160kHz
CT2 240kHz
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