Panasonic RQA200 - PERSONAL STEREO-LOW, Руководство по обслуживанию

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AM several turns of
wire
Fashion a loop
of
and radiate the
signal
into the loop
antenna
of the receiver
511 kHz...[EG]
/ 516
kHz...[EJ] Tuning
capacitor
fully closed Headphones
jack (50 )
(Fig.3) L6 (AM OSC
Coil) Adjust for
maximum
AM “
1650kHz...[EG]
/
1635kHz...[EJ]
Tuning
capacitor
fully open. “ CT4 (AM OSC
Trim- mer) “
AM “ 550kHz Tune to signal “ (*1) L1 (AM ANT
Coil) Adjust for
maximum
output. Adjust
L1 by moving
coil bobbin
along ferrite
core.
AM “ 1500kHz “ “ CT1(AM ANT
Trimmer) Adjust for
maximum
output. Repeat
steps (2)
(*1) Fix antenna coil with wax after completing alignment.
FM ALIGNMENT
BAND Signal generator
or sweep
generator
(Connections)
Signal
generator or
sweep
generator
(Frequency) Radio dial
setting Indicator
(Electronic
voltmeter or
scope Adjustment Remarks
FM-RF ALIGNMENT
FM Connect to test
point “TP1”.
Through FM
dummy antenna.
Negative side to
test point “TP2”. 86.2MHz..[EG]
/
87.415MHz.[EJ] Variable
capacitor
fully closed Headphones
jack (50 )
(Fig.3) L5 (FM OSC Coil) (*2) Adjust
maximum
output.
FM “
109.3MHz.[EG]
/
108.35MHz.[EJ]
Variable
capacitor
fully open. “ CT3 (FM OSC
Trimmer) “
FM “ 90MHz Tune to signal “ L3 (FM ANT Coil) “
FM “ 106MHz “ “ CT2 (FM ANT
Trimmer) (*2) Adjust
maximum
output. Repeat
steps (3)
(*2) Three output responses will be present; proper tuning is the center frequency.
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