Troubleshooting Guide - Panasonic SC-AK343 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
remedies indicated in the chart do not solve the problem, refer to the "Customer Services Directory" on page 18 if you
reside in the U.S.A., or refer to the "Product information" on page 15 if you reside in Canada.
Reference pages are shown as black circled numbers 4.
Common problems
Although the unit is in standby mode, the
display lights up and changes continuously.
No sound.
Sound stops.
Sound is unfi xed, reversed or comes from
one speaker only.
Humming heard during play.
"ERROR" is displayed.
"– –:– –" appears on the display at
standby mode.
"F61" is displayed.
Listening to the radio
Noise is heard.
The stereo indicator fl ickers or doesn't light.
Sound is distorted.
A beat sound is heard.
A low hum is heard during AM broadcast.
When there is a television set nearby
The picture on the TV disappears or
stripes appear on the screen.
Using the cassette deck
Poor quality sound.
Recording is not possible.
Playing discs
The display is wrong or play won't start.
The total number of tracks displayed
differs each time the same disc is inserted.
Unusual sound is heard.
CD-RW cannot be read.
"VBR–" is displayed instead of the
remaining play time.
Disc trays
Disc tray(s) cannot open.
"CHGR ERR " is displayed.
Remote control
Remote control doesn't work.
Memory reset (Initialization)
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 memory
1 Disconnect the AC power supply cord. (Wait at least 3 minutes before proceeding to step 2)
2 While pressing and holding down [y/I, POWER] on the main unit, reconnect the AC power supply cord.
"– – – – – – – – –" appears on the display.
3 Release [y/I, POWER].
16
All the settings are returned to the factory preset.
You will need to reset the memory items.
RQT8043
Turn off the demo function. 5
If you set the clock, demo function will be turned off automatically. $
Turn the volume up.
Switch off the unit, determine and correct the cause, then switch the unit on. Causes include
shorting of the positive and negative speaker wires, straining of the speakers through excessive
volume or power, and using the unit in a hot environment.
Check the speaker connections. 4
An AC power supply cord or fl uorescent light is near the cables. Keep other appliances and cords
away from this unit's cables.
Incorrect operation performed. Read the instructions and try again.
You plugged the AC power supply cord in for the fi rst time or there was a power failure recently.
Set the time. $
Check and correct the speaker cords connection. 4
If this does not fi x the problem, there is a power supply problem. Consult the dealer.
Use an outdoor antenna. 4
Turn the TV off or separate it from the unit.
Separate the antenna from other cables and cords.
The location and orientation of the antenna are incorrect. If you are using an indoor antenna,
change to an outdoor antenna.
The TV antenna wire is too close to the unit. Separate the antenna wire of the TV set from the unit.
Clean the heads. &
If the erasure prevention tabs have been removed, cover the holes with adhesive tape. "
The disc may be upside down. !
Wipe the disc.
Replace the disc if it is scratched, warped, or non-standard.
Condensation may have formed inside the unit due to a sudden change in temperature. Wait for
about an hour for it to clear and try again.
The disc may be scratched, or its data may be defective. Replace the disc.
The disc was incompletely formatted. Use the recording equipment to fully format the disc before
recording.
The unit cannot display the remaining play time for variable bit rate (VBR) tracks.
Press [y/I, POWER] to release the jammed tray(s) as the unit will switch off. Switch 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.
Check that the batteries are inserted correctly. 5
Replace the batteries if they are worn.