Troubleshooting Guide - Panasonic SC-AK980 Operating Instructions Manual

Troubleshooting guide

Before requesting service, make the following checks. If you are in doubt about some of the check points, or if the solutions indicated in the
chart do not solve the problem, consult your dealer for instructions.
■ Common problems
When the unit is in standby
mode, the display lights up
and changes continuously.
No response from the unit
even though it has been
turned on.
No response when remote
control buttons are pressed.
Distorted sound or no sound.
A "humming" sound can be
heard during play.
■ Discs
Incorrect display or play will
not start.
The total number of tracks
displayed is incorrect.
The disc cannot be read.
Distorted sound is heard.
Disc tray(s) cannot open.
■ Radio
Distorted sound or noise is
heard.
The stereo indicator fl ickers or
does not light.
A beat sound is heard.
A low hum is heard during AM
broadcast.
■ USB
The USB drive or its contents
cannot be read.
Slow operation of the USB
device.
RQTX0273-2M_us.indd 21 RQTX0273-2M_us.indd 21
• Turn off the demo function.
• Press [y/l, POWER] for more than 10 seconds to turn off the unit. Alternatively, unplug the
AC power supply cord and plug it in after a lapse of a few seconds.
Turn the unit on again.
• Check that the batteries are installed correctly.
• Turn the volume up.
• Turn off the unit, determine and correct the cause, then turn the unit on again.
It may be caused by straining of the speakers through excessive volume or power, and
using the unit in a hot environment.
• An AC power supply cord or fl uorescent light is near the unit. Keep other appliances and
cords away from the unit.
• You have not inserted the disc correctly; insert it correctly.
• Disc may be dirty. Wipe it clean.
• Replace the disc if it is scratched, warped, or non-standard.
• Condensation has formed: Wait 1 to 2 hours for it to evaporate.
• You have inserted a disc the unit cannot play; insert one it can.
• You have inserted a disc that has not been fi nalized or completely formatted.
• Press [y/I, POWER] to release the jammed tray(s) as the unit will switch off. Turn it on
again and the tray(s) will initialize to the previous tray(s) condition.
• If this still does not fi x the problem, please consult the dealer.
• Use an outdoor antenna.
• Turn the television off or move it away from the unit.
• Switch to either BP 1 or BP 2 when in AM tuner mode.
• Separate the antenna from other cables and cords.
• The USB drive format or its contents is/are not compatible with the system.
• The USB host function of this product may not work with some USB devices.
• USB devices with storage capacity of more than 32 gigabytes may not work in some
instances.
• Large fi le size or high memory USB fl ash drive takes longer time to read.
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12/21/09 12:22:41 PM 12/21/09 12:22:41 PM