Troubleshooting Guide - Panasonic SC-AK270 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 when remote
control buttons are pressed.
Distorted sound or no sound.
A "humming" sound can be
heard during play.
"ERROR" is displayed.
"ERROR" is displayed during
recording.
"– –:– –" appears on the
display during standby mode.
"F61" is displayed.
"F76" is displayed.
■ Playing the 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.
"VBR–" is displayed instead
of the remaining play time.
■ Using the cassette deck
Poor sound quality.
Recording cannot be
performed.
■ Using the USB device
No response when
[¶ REC, TAPE] button is
pressed.
The USB drive or its contents
cannot be read.
Slow operation of the USB
device.
"USB OVER CURRENT
ERROR"
"NO PLAY"
• Turn off the demo function.
• If you set the clock, demo function will be turned off automatically.
• 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 mains lead or fl uorescent light is near the unit. Keep other appliances and cords
away from the unit.
• Incorrect operation performed. Read the instructions and try again.
• You are not able to select other playback source (example: radio, USB and etc.) or press
4 3
[4, / REW] or [¢, / FF] during recording.
Stop the recording function.
• You plugged the AC mains lead in for the fi rst time or there was a power failure recently.
• Set the time.
• Check and correct the speaker cords connection.
If this does not fi x the problem, consult the dealer.
• There is a power supply problem. Consult the dealer.
• 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 nalised or completely formatted.
• The unit cannot display the remaining play time for variable bit rate (VBR) tracks.
• Clean the heads.
• If the erasure prevention tabs have been removed, cover the holes with adhesive tape.
• Disconnect the USB device and then reconnect it back. Alternatively, turn the unit off and
then back on.
• 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 8 gigabytes may not work in some
instances.
• Large fi le size or high memory USB fl ash drive takes longer time to read.
• The USB device is drawing too much power. Disconnect the USB device. Turn the unit off
and then back on.
• Check the content.
• Only MP3 format fi les can be played.
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RQT8043