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– 13 –
FM FREQUENCY COVERAGE
CHECK
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
2.0 ± 0.2 V
7.3 ± 0.1 V
Adjustment Part
<confirmation> <confirmation>
FM TRACKING CHECK
Adjust for a maximum reading on level meter.
<confirmation>
<confirmation>
87.5 MHz
108 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
450 kHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
530 kHz
1,710 kHz
Reading on Digital voltmeter
1.2 ± 0.1 V
7.5 ± 0.2 V
Adjustment Part
L5
<confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
TC2
620 kHz
1,400 kHz
Adjustment Location: See page 14.
TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
BAND switch: FM
BAND switch: FM
22.5 kHz frequency
deviation by 1 kHz signal
Output level : as low as possible
deviation by 1 kHz signal
Output level : as low as possible
• AM Section
Setting:
BAND switch: AM
BAND switch: AM
30% amplitude
modulation by 400 Hz signal
Output level : as low as possible
modulation by 400 Hz signal
Output level : as low as possible
• Connecting Level Meter (FM and AM)
antenna terminal
FM RF signal
generator
generator
0.01
µ
F
set
digital
voltmeter
voltmeter
100 k
Ω
TP1 (VT)
PHONES jack (JK302)
set
32
Ω
level meter
(range: 0.5-5 V ac)
(range: 0.5-5 V ac)
Put the lead-wire
antenna close to
the AM loop
antenna.
antenna close to
the AM loop
antenna.
AM RF signal
generator
generator
• Connecting Digital Voltmeter (FM and AM)
• 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.
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