Panasonic SB-AK780, SA-AK580 manual Troubleshooting guide, Common problems, Radio

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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

 

Page

When the unit is in standby

• Turn off the demo function.

6

mode, the display lights up

 

 

and changes continuously.

 

 

 

 

 

No response from the unit

• Press [y /l] for more than 10 seconds to turn off the unit. Alternatively, unplug the AC mains

even though it has been

lead and plug it in after a lapse of a few seconds.

 

turned on.

Turn the unit on again.

 

 

 

 

No response when remote

• Check that the batteries are installed correctly.

4

control buttons are pressed.

 

 

 

 

 

Distorted sound or no sound.

• 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.

 

 

 

 

A “humming” sound can be

• An AC mains lead or fl uorescent light is near the unit. Keep other appliances and cords

heard during play.

away from the unit.

 

 

 

 

Discs

 

 

 

 

 

Incorrect display or play will

• You have not inserted the disc correctly; insert it correctly.

6

not start.

• 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.

 

 

 

The total number of tracks

• You have inserted a disc the unit cannot play; insert one it can.

displayed is incorrect.

• You have inserted a disc that has not been fi nalised or completely formatted.

The disc cannot be read.

 

 

Distorted sound is heard.

 

 

 

 

 

Disc tray(s) cannot open.

• Press [y /I] to release the jammed tray(s) as the unit will switch off. Turn it on again and the

 

tray(s) will initialise to the previous tray(s) condition.

 

 

• If this still does not fi x the problem, please consult the dealer.

 

 

 

Radio

 

 

 

 

 

Distorted sound or noise is

• Use an outdoor antenna.

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heard.

 

 

The stereo indicator flickers

 

 

or does not light.

 

 

 

 

 

A beat sound is heard.

• Turn the television off or move it away from the unit.

 

• Switch to either BP 1 or BP 2 when in AM tuner mode.

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A low hum is heard during AM

• Separate the antenna from other cables and cords.

broadcast.

 

 

 

 

 

USB

 

The USB drive or its contents

• The USB drive format or its contents is/are not compatible with the system.

 

cannot be read.

• 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.

 

Slow operation of the USB

 

 

• Large fi le size or high memory USB fl ash drive takes longer time to read.

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device.

 

RQTX0271

 

 

 

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Contents Main unit Please check and identify the supplied accessoriesSystem SpeakersIf you see this symbol Inside of productSafety precautions Table of contentsPlacement of speakers Preparing the remote control Speaker connections Making the connectionsAntenna connections AC mains lead connectionMaking the connections Demo functionHandling of the disc trays and discs Optional antenna connectionsOverview of controls Main unitPlay timer or record timer setting Remote controlClock or timer setting USB recording or pause Recording mode selectionBasic play Play Mode functionDiscs Checking the track informationChanging multiple discs DiscsAdvanced play Program playMemory preset Automatic presettingTo improve the sound quality Playing a USB mass storage device Connecting a USB mass storage deviceChecking the USB status Basic recordingRecording of MP3 tracks Recording from CD using analogue formatAdvanced recording functions High-speed recordingAdding track marks Recording modeUSB Erasing the recorded tracksUsing the play or record timer Using the timersSetting the clock Using the sleep timerUsing sound effects Using the microphonePlaying a portable audio equipment Using other equipmentsConnecting to a portable audio equipment Playing an external unitTroubleshooting guide Common problemsRadio Unit displays MaintenanceWhen moving the unit If the surfaces are dirtySpecifications