– 8 –
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
CFT1 450kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust part Frequency display
reading on digital
voltmeter
Confirmation 531kHz 0.8 – 1.2 V
L4 1,611kHz 4.9 – 5.3 V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 621kHz
CT2 1,404kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1 10.7MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust part Frequency display
reading on digital
voltmeter
Confirmation 87.5MHz 1.1 – 1.5 V
L2 108MHz 3.3 – 3.7 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 87.5MHz
CT1 108MHz
Adjustment Location : Tuner board (See page 12)
TUNER SECTION
AM Section
Function switch : AM
Volume : MIN
FM Section
Function switch : FM
Volume : MIN
Frequency Coverage Adjustment
Setting :
[TUNER BOARD]
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
22.5kHz frequency deviation by 400Hz signal.
Output level : as low as possible
telescopi
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