Troubleshooting Guide - Panasonic SC-AK450 Operating Instructions Manual

Troubleshooting guide

Before requesting service, make the following checks. If you can't fi x the system as described below, or if something
not listed here occurs, refer to the enclosed directory to locate an Authorized Service Center convenient to you or
contact your dealer.
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 sound quality.
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.
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 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. 5
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. 3
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.
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RQT8043