Panasonic CY-VH9300U Preliminary Steps, If You Suspect Something Wrong, Troubleshooting Tips

E	Troubleshooting
GN
L
I
S		Common (continued)
H	WARNING:

E N G L I S H

31≥ Do not use the product when it is broken or there is some abnormality.

In the unlikely event that the product breaks (such as when no image is displayed or there is no sound) or there is some abnormality (such as when a foreign object is inside the product, water was spilled on it, smoke comes out or the product makes a strange smell), immediately stop using the product, switch MAIN POWER to OFF and be sure to contact the store from which you purchased your product or a nearby Panasonic Servicenter.

Continuing to use the product in that condition could cause accidents, fire or electrical shock.

≥If there are any problems in the wiring connections or installation, do not attempt to do the repair work or check the wiring yourself. Instead, be absolutely sure to consult with your dealer or your nearest Panasonic Servicenter and request repairs.

Preliminary Steps

Check and take steps as described in the tables below.

For items in the “Possible solution” column in the tables below that relate to wiring connections or installation, do not attempt to do the repair work or check the wiring yourself.

For whatever is printed in italics in the “Possible solution” column, turn to the reference page given, and conduct the operations and checks yourself.

If You Suspect Something Wrong

Immediately switch MAIN POWER to OFF.

Disconnect the power connector and check that there is neither smoke nor heat from the unit before asking for repairs. Never try to repair the unit by yourself because it is dangerous to do so. Instead, be absolutely sure to consult with your dealer or your nearest Panasonic Servicenter and request repairs.

Troubleshooting Tips

Common

Problem	Possible cause	Possible solution (reference page)
No power to the unit.	MAIN POWER switch is set to OFF.	Switch MAIN POWER to ON. (page 54)
	The power cord (battery, ACC and	Check the wiring.
	ground) is connected in the wrong
	way.
	Fuse blow out.	Eliminate the cause of fuse blow out
		and replace the fuse with new one.
		Consult your dealer.
Sound is not	The volume on the headphones is	Raise the volume on the headphones.
generated.	adjusted to zero.	(page 53)
	The power of headphones is set to	Switch the power of headphones to
	OFF.	ON. (page 53)
	The batteries of the IR wireless	Replace the batteries. (page 52)
	headphones have run down.
	Cables are not correctly connected.	Connect cables correctly.

74CY-VH9300U

Problem

Noise

Noise is made in step with engine revolutions.

Monitor

Problem

The tilt angle or the lateral angle of the display is not adjustable.

Dome light

Problem

Dome lights do not come on.

Possible cause	Possible solution (reference page)
The headphones are too far from	Use the headphones within a distance
this unit.	of 2.5 m from the unit. (page 53)
The path between the unit and	When using the headphones, remove
headphones is obstructed by	any obstacles that obstruct the path
something.	between the headphones and unit.
	(page 53)
The batteries of the IR wireless	Replace the batteries. (page 52)
headphones have run down.
There is an electromagnetic-wave	Keep an electromagnetic-wave
generator such as a cellular phone	generator such as a cellular phone
near the unit or its electrical lines.	away from the unit and the wiring of
	the unit.
	In case the noise cannot be eliminated
	due to the wiring harness of the car,
	consult your dealer.
The contact of the ground lead is	Make sure that the ground lead is
poor.	securely connected to an unpainted
	part of the chassis.
Alternator noise comes from the	Change the wiring position of the
car.	ground lead.
	Mount a noise filter on the power supply.
Possible cause	Possible solution (reference page)
There is an obstacle.	Install the unit where the unit moves
	freely.

Possible cause	Possible solution (reference page)
The dome light switch is at the OFF	Set it to the ON position. (page 46)
position.
The wires are not connected	For the wiring connections of the dome
properly.	lights, consult a specialized contractor
	or your dealer where you purchased
	the unit.

CY-VH9300U75

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