Panasonic SC-AK77 manual Troubleshooting guide, Maintenance, Reference, If the surfaces are dirty

Troubleshooting guide

Before requesting service, make the checks below. If you can’t fix 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.

For detailed instructions, contact an authorized servicenter in the U.S.A. and Panasonic Canada Inc. Customer Care Centre in Canada. In the U.S.A., call 1-800-211-7262, e-mail consumerproducts@panasonic.com, or visit www.panasonic.com

In Canada, call 905-624-5505 or visit www.panasonic.ca

Reference pages are shown as black circled numbers 6.

Common Problems

No sound.	Turn the volume up.
	The speaker cables may be shorted. Turn the unit off, check and correct the connections and turn the
	unit on. 6, 7
Sound is unfixed, reversed	Check the speaker connections. 6, 7
or comes from one speaker
only.
Humming heard during play.	An AC power supply cord or fluorescent light is near the cables. Keep other appliances and cords away
	from this unit’s cables.
“ERROR” is displayed.	Incorrect operation performed. Read the instructions and try again.
“– –:– –” appears on the	You plugged the power supply cord in for the first time or there was a power failure recently. Set the time.
display.	$
“F61” is displayed.	Check and correct the speaker cords connection. 6 , 7
	If this does not fix the problem, there is a power supply problem. Consult the dealer.

Listening to the radio

Noise is heard.	Use an outdoor antenna. 7
The stereo indicator flickers
or doesn’t light.
Sound is distorted.
A beat sound is heard.	Turn the TV off or separate it from the unit.
A low hum is heard during	Separate the antenna from other cables and cords.
AM broadcasts.

When there is a television set nearby

The picture on the TV	The location and orientation of the antenna are incorrect. If you are using an indoor antenna, change to
disappears or stripes	an outdoor antenna.
appear on the screen.	The TV antenna wire is too close to the unit. Separate the antenna wire of the TV set from the unit.

Using the cassette deck

Poor quality sound.	Clean the heads. {
Recording is not possible.	If the erasure prevention tabs have been removed, cover the holes with adhesive tape. .

Playing discs

The display is wrong or play won’t start.

“TAKE OUT/DISC” appears on the display.

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 about an hour for it to clear and try again.

There is a problem with the disc mechanism. (A power failure may have occurred.)

The tray will open automatically. Remove the disc from the tray, and after ensuring there is no disc in the tray, close it. The unit will make the disc changing noises for a few moments and then it should operate normally.

Remote control

Remote control doesn’t	Check the batteries are inserted correctly. 9
work.	Replace the batteries if they are worn.

Reference

36

Maintenance

If the surfaces are dirty

To clean this unit, wipe with a soft, dry cloth.

If the surfaces are extremely dirty, use a soft cloth dipped in a soap- and-water solution or a weak detergent solution.

•Never use alcohol, paint thinner or benzine to clean this unit.

•Before using a chemically treated cloth, carefully read the instruc- tions that came with the cloth.

For a cleaner, crisper sound

Clean the heads regularly to assure good quality playback and record- ing.

Use a cleaning tape (not included).

RQT5769