Troubleshooting Guide; Maintenance - Panasonic SC-AKX12 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 do
not solve the problem, consult your dealer for instructions.
■ Common problems
The display panel lights up and changes continuously in standby
mode.
• Press and hold [8] on the main unit to select "DEMO OFF".
No operations can be done with the remote control.
• Examine that the battery is installed correctly.
Sound is distorted or no sound.
• Increase the volume.
• Switch off the system, determine and correct the cause, then switch
the system on again. It can be caused by straining of the speakers
through excessive volume or power, and when using the system in a
hot environment.
A "humming" sound can be heard during playback.
• An AC mains lead or fluorescent light is near the cables. Keep other
appliances and cords away from the cables of this system.
■ Discs
Display not shown correctly.
Playback does not start.
• You have not put in the disc correctly. Put it in correctly.
• Disc is dirty. Clean the disc.
• Replace the disc if it is scratched, warped, or non-standard.
• There is condensation. Let the system dry for 1 to 2 hours.
The total number of tracks displayed is incorrect.
The disc cannot be read.
Distorted sound is heard.
• You put in a disc that the system cannot play. Change to a playable
disc.
• You put in a disc that has not been finalised.
■ Radio
Sound is distorted.
• Use an optional FM outdoor antenna. The antenna should be
installed by a competent technician.
A beat sound is heard.
• Switch off the TV or move it away from the system.
• Set to "BP 1" or "BP 2" when in AM tuner mode.
A low hum is heard during AM broadcasts.
• Move the antenna away from other cables and cords.
■ USB
The USB mass storage device or the contents in it cannot be read.
• The format of the USB mass storage device or the contents in
it is/are not compatible with the system.
• USB mass storage devices with storage capacity of more than
32 GB cannot work in some conditions.
Slow operation of the USB mass storage device.
• Large content size or large memory USB mass storage device takes
longer time to read.
10
10
■ Main unit displays
"NO PLAY"
• Examine the content. You can only play supported format.
• If there are more than 255 albums or folders (audio and non-audio),
some of the MP3 files in these albums cannot be read and played.
Transfer these music albums to another USB mass storage device.
Alternatively, reformat the USB mass storage device and save these
music albums prior to saving the other non-audio folders.
"F61"
• Examine and correct the speaker cords connection.
• Disconnect the USB mass storage device. Switch off the system and
then switch it on again.
"ERROR"
• An incorrect operation was done. Read the instructions and try again.
"NOT MP3/ERROR"
• An unsupported MP3 format. The system will skip that track and play
the next one.
"VBR–"
• The system cannot show the remaining play time for variable bit rate
(VBR) tracks.
"NORMAL"
• The "INPUT LEVEL" of AUX source automatically charges from
"HIGH" to "LOW" when the system detects distorted music sounds.
"NODEVICE"
• The USB mass storage device is not connected. Examine the
connection.
Memory reset (Initialisation)
When the following situations occur, refer to the instructions below
to reset the memory:
• There is no response when buttons are pressed.
• You want to clear and reset the memory contents.
To reset the memory
1
Disconnect the AC mains lead.
(Wait 3 minutes before you continue with step 2.)
2
While you press and hold [1] on the main unit, connect the
AC mains lead again.
"– – – – – – – –" shows on the display panel.
3
Release [1].
All the settings are set back to the factory preset.
It is necessary to set the memory items again.

Maintenance

To clean this system, wipe with a soft, dry cloth.
• Never use alcohol, paint thinner or benzine to clean this system.
• Before using chemically treated cloth, read the instructions that came
with the cloth carefully.