Troubleshooting Guide.34 - Technics SA-AX540 Operating Instructions Manual

Troubleshooting guide
Before requesting service for this unit, check the chart below for a
possible cause of the problem you are experiencing. Some simple
checks or a minor adjustment on your part may eliminate the
problem and restore proper operation.
If you are in doubt about some of the check points, or if the
remedies indicated in the chart do not solve the problem, refer to
the directory of Authorized Service Centers to locate a convenient
service center, or consult your dealer for instructions.
For detailed instructions, contact an authorized servicenter in
the U.S.A. and Panasonic Canada Inc. Customer Care Centre
in Canada.
In the U.S.A. 1-800-211-7262 or web site
(http:/Avww.panasonic
.
com)
In Canada 905-624-5505 or web site
( www.Panasonic, ca)
Problem
Probable cause(s) Suggested remedy
While listening to FM broadcasts
Hiss is heard during
stereo broadcasts, but not
during monaural ones.
Modulation for the two types is different so
some noise may be heard during stereo
broadcasts.
Excessive noise in both
stereo and monaural
broadcasts.
Antenna location and direction poor.
Station is distant.
"STEREO" and "QUARTZ
LOCK" indicators flicker
Antenna location and direction poor.
Station is distant.
Stereo broadcasts highly
distorted.
Building or mountain nearby.
• Reduce the treble.
• Change the location and direction of the
antenna.
• Use an outdoor antenna.
• Use an antenna with more elements.
• Change the location and direction of the
antenna.
® Use an outdoor antenna.
® Use an antenna with more elements.
While listening to AM broadcasts
Unusual "beaf'sound is
heard.
A television is on nearby. • Separate the two or turn the television off.
Adjacent signal is interfering. • Reduce the treble.
Low-pitched "hum" is
heard when a station is
tuned.
Power cord is near the antenna wires. • Separate the power cord from the wires.
Electronic interference from the power cord
is fed to the speakers.
• Use an outdoor antenna.
A continuous or
intermittent hiss is heard.
Interference from other appliances. • Separate this unit from such appliances.
While enjoying sound modes
Sound doesn't come from
the center speaker while
using Dolby Pro Logic.
PHANTOM is selected. • Select NORMAL or WIDEBAND.
Sound doesn't come from
the center speaker,
surround speakers, or
subwoofer while using DVD
6CH INPUT.
Speaker settings are incorrect. • Check speaker setting of the DVD player
or digital surround processor.
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