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— 11 —
AM Tracking Adjustment
loop antenna
Field strength dB (
µ
V/m) = SSG output level dB (
µ
V/m) –26dB.
loop antenna
(Supplied accessories)
(Supplied accessories)
AM RF SSG
30% amplitude
modulation by
400Hz signal
modulation by
400Hz signal
60cm
set
AM antenna
terminal (JK101)
terminal (JK101)
Procedure:
1. Tune the set to 600 kHz (10 kHz step) or 603 Hz (9 kHz step).
2. Set the output of AM RF SSG so that the input level of the set will
1. Tune the set to 600 kHz (10 kHz step) or 603 Hz (9 kHz step).
2. Set the output of AM RF SSG so that the input level of the set will
become 60 dB (
µ
V/m).
3. Adjust L104 so that when the waveform on the oscilloscope is
maximum, no noise appears.
4. Tune the set to 1,400 kHz (10 kHz step) or 1,404 Hz (9 kHz step).
5. Adjust TC102 so that when the waveform on the oscilloscope is
5. Adjust TC102 so that when the waveform on the oscilloscope is
maximum, no noise appears.
• Repeat the procedures in each adjustment several times, and the
tracking adjustment should be finally done by the trimmer
capacitors.
capacitors.
Adjustment Location
E, SP, MX, AUS MODEL
[TUNER BOARD] — Component side —
[TUNER BOARD] — Component side —
FM Tuning Voltage
TP2
L103
TC101
L102
IC101
JK101
L104
TC102
AM Tracking
AM Tuning Voltage
IC102
SFR101
FM Tuned Level
FM Tuned Level
L105
FM Tracking
AEP, UK, G MODEL
[TUNER BOARD] — Component side —
[TUNER BOARD] — Component side —
U1
TP2
SFR101
FM Tuned Level
IC102
L105
TC102
JK101
L104
AM Tracking
AM Tuning Voltage
• Abbreviation
G
: German model.
MX : Mexican model.
SP
SP
: Singapore model.
AUS : Australian model.
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