Troubleshooting Guide - Technics SA-DX940 Operating Instructions Manual

Troubleshooting g uide
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://www.panasonic.corn)
In Canada 905-624-5505 or web site
(www.panasonic.ca)
Problem L Probable cause(s) I Suggested remedy
Page(s) I
While listening to
Hiss is heard during
stereo broadcasts, but not
during monaural ones.
Excessive noise in both
stereo and monaural
broadcasts.
"STEREO" and "TUNED"
indicators flicker.
FM broadcasts
Modoation tot the two types ding se eoiSurdl eratntrS°
!some nose may be heard
i broadcasts.
I
I
Antenna location and direction poor.
• Reduce the treble.
• Change the location and direction of the I
Stereo broadcasts highly
distorted.
Station is distant•
! DSP is on.
I
antenna.
• Use an outdoor antenna.
! • Use an antenna with more elements•
!
t
• Select "DSP DEFEAT". i
I
r • Change the location and direction of the!
antenna.
• Use an outdoor antenna.
• Use an antenna with more elements.
i
Antenna location and direction poor.
i
Station is distant.
Building or mountain nearby.
24
12
12
21
12
12
While listening to
Unusual "beat"sound is
heard.
AM broadcasts
, A television is on nearby.
I
i Adjacent signal is interfering.
I
', • Separate the two or turn the television off.
I
I • Reduce the treble.
Low-pitched "hum" is
heard when a station is
tuned.
A continuous or
intermittent hiss is heard.
i DSP is on.
i
=_ P ower cord is near the antenna wires.
Electronic interference from the power cord
I is fed to the speakers.
1
i Interference from other appliances•
• Select "DSP DEFEAT",
• Separate the power cord from the wires.
• Use an outdoor antenna.
• Separate this unit from such appliances.
24
21
12
While enjoying the surround modes
4 I
Sound is not heard from I The presence setting of the speaker has I • Set the type and presence setting of each
the center, surround or i been incorrectly set to "NONE" or "OFF". I speaker correctly.
subwoofer speakers.
! The DSP mode has been incorrectly set to • Set to SURROUND mode
SURROUND and SFC • Select "DSP ON"
cannot be selected.
• Turns SPEAKERS B off.
• Turn PCM FIX mode oft.
' • Switch to SURROUND or STEREO mode.
Cannot play Dolby Digital
or DTS sources.
i "STEREO".
DSP is off.
' SPEAKERS B is on.
i
! The PCM FIX mode may be on.
An SFC mode is on.
17, 18
2O
21
22
21
2O
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