JVC TH-A104 manual Troubleshooting, Problem Possible Cause Solution

Troubleshooting

Use this chart to help you solvi daily operational problems. If there is anyproblem you cannot solve, conect your JVC service center.

PROBLEM	POSSIBLE CAUSE			SOLUTION
Power does not come on.	The power cord.	Insert the plug into the socket.
Power is not supplied to the powered	The power cord has been pulled out of the	Press the		button on the center unit to
sub-woofer	AC outlet.	switch power OFF, and then press it again to
	The system cable is not connected.	switch power ON.
The remote control does not work.	It is too far from the center unit, or is not	Avoid any obstacles within approximately 5 m
	facing the center unit.	of the detector on the remote control.
	There is something obstructing the remote
	sensor.
	The battery is flat.	Replace the battery.
	The battery has been inserted the wrong way	Insert the battery correctly.
	round (+/–).
	Sunlight is falling directly on the detector.	Shade the remote control from direct sunlight.
	The entered manufacturers code number is	Enter the correct code number.
	incorrect.
No sound.	The system cable is not connected.	Check the connection.
	The speaker cord is not connected.	Check the connection.
	There is a short in the speaker cord.	Reconnect the speaker cord and press			on
		the center unit to restart the system.
	The powered sub woofer power supply is off.	Insert the plug firmly into the socket and press
			on the center unit to switch power off, and
		then press it again to switch power on.
	The audio cord is not connected properly.	Connect the cord properly.
	An incorrect source has been selected.	Select the correct source.
	Muteing is on.	Press MUTING to clear mute.
Sound is emitted from only one speaker.	The speaker cord is not connected correctly.	Connect the cord properly.
	Left-right balance is incorrect.	Adjust balance.
No video.	The video cord is not connected properly.	Connect the cord properly.
	TV input select is incorrect.	Select the correct input.
Cannot play a disc.	The unit and disc region numbers (local	Replace the disc.
	numbers) are incompatible.

Video and audio are distorted.

The disc is dirty.	Clean the disc.
A video deck is connected between the	Connect the center unit and TV directly.
center unit and the TV.

The edge is missing on the video image.	Initial setup (monitor type) was incorrect.	Run through initial setup again correctly.
	The TV has been set up incorrectly.	Set up the TV correctly.
Continuous static during FM broadcasts.	The received signal is too weak.	Connect an external FM antenna, or contact
		your dealer.
	The station is too far away.	Select another station.
	The antenna is not connected correctly.	Check the connection.

Unit does not work correctly.

Lightning and electronic noise interferes	Switch power off, and remove and re-insert the
with operation of the microcomputer.	power plug in the socket.
Immediately after beginning to heat the	Switch power off and leave the unit a few
room, the unit was moved to a cold location	hours before switching power on again.
causing condensation to form inside.

The remote control mode selector is not set correctly.

Set the selector correctly either to “AUDIO/ TV/VCR” or to “CATV/DBS.”

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