Panasonic CQ-D1703N manual Troubleshooting

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Troubleshooting

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If You Suspect Something Wrong

Check and take steps as described below.

If the described suggestions do not solve the problem, it is recom- mended to take the unit to your nearest authorized Panasonic Service Centre. The product should be serviced only by qualified personnel. Please refer the checking and the repair to professionals. Panasonic shall not be liable for any accidents arising out of neglect of checking the unit or your own repair after your checking.

Never take measures especially those other than indicated by italic letters in “Possible Solution” described below because

those are too dangerous for users to handle themselves.

Warning

¡Do not use the unit in an irregular condition, for example, without sound, or with smoke or a foul smell, which can cause ignition or elec- tric shock. Immediately stop using the unit and consult your dealer.

¡Never try to repair the unit by yourself because it is dangerous to do so.

■Common

Problem Possible cause a Possible solution

	The power cord (battery, power and ground) is connected in the wrong way.
	aCheck the wiring.
No power to the unit
	Fuse blows out.
	aEliminate the cause of fuse blowout and replace the fuse with new one.
	Consult your dealer.
	MUTE is set to ON.
	aSet MUTE to OFF.
Sound is not	There is contact between the external mute lead and the chassis.
	aConnect the external mute lead correctly. If the lead is unused, insulate
generated.
	it.
	The wiring of speaker lines is not correct, or a break or poor contact arises.
	aCheck the wiring in accordance with the wiring diagram. (a Page 52)

	There is an electromagnetic-wave generator such as a cellular phone near the
	unit or its electrical lines.
	aKeep the electromagnetic-wave generator such as a cellular phone away
Noise	from the unit and the wiring of the unit. If noise cannot be eliminated
	due to the wiring harness of the car, consult your dealer.
	The contact of the ground lead is poor.
	aMake sure that the ground lead is connected to an unpainted part of the
	chassis securely.
Noise is made in step	Alternator noise comes from the car.
with engine revolu-	aChange the wiring position of the ground lead.
tions.	aMount a noise filter on the power supply.
Some operations are	Some operations are not executable in particular modes such as menu mode.
	aRead the operating instructions carefully and cancel the mode. If the
not executable.
	unit is still out of order, consult your dealer.

No sound from speaker(s)

Balance/fader setting is not appropriate.

aReadjust Balance/fader.

There is a break, a short circuit, poor contact or wrong wiring regarding the speaker wiring.

aCheck the speaker wiring.

P-MODE is set to ON.

aSet P-MODE to OFF.

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