Pioneer TX-608 Servis Kılavuzu - Sayfa 12
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8.2
AM TUNER
position.
1.
flection of the SIGNAL meter indicator.
output frequency to 1400kHz also.
Core of Bar-Antenna
To terminal «———-D
(OUTPUT)
4.This
time
adjust
TCs
to
obtain
maximum
SIGNAL meter deflection.
. Repeat steps 1 to 4 above.
. Set the AM SG output level to 30dB, adjust the
core
of the
bar-antenna
and
T3
at 600kHz,
and TC4 and TC2 at 1400kHz, in the same man-
ner as described in the above steps.
This is the
adjustment
for
optimum
sensitivity
across
the frequency band, and minimum difference in
sensitivity at different frequencies.
Oscilloscope
AM signal generator
"@©
OUT
1kQQ resistor
Fig. 8-3 AM tuner adjustments
12