JVC TH-A25 manual Troubleshooting, Problem, Possible Cause, Solution

Troubleshooting

Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC service center.

PROBLEM

Power does not come on.

The remote control does not work.

No sound.

Sound is emitted from only one speaker.

No video.

A disc cannot be played.

POSSIBLE CAUSE

The power cord is not plugged in.

•It is too far from the center unit, or is not facing the center unit.

•There is something obstructing the remote sensor.

•The CONTROL TV button has been pressed.

•The battery is flat.

•The battery has been inserted the wrong way round (+/–).

•Sunlight is falling directly on the remote sensor.

•There is a short in the speaker cord.

•The audio cord is not connected properly.

•An incorrect source has been selected.

•Muting is on.

•The speaker cord is not connected correctly.

•Left-right balance is incorrect.

•The video cord is not connected properly.

•TV input selection is incorrect.

•The system and disc region code numbers are incompatible.

•The disc causes the parental (rating) error.

SOLUTION

Insert the plug into the socket.

•Come close to the center unit.

•Avoid any obstacles.

•Press DVD, FM/AM, or AUX to operate the system. (See page 11.)

•Replace the battery.

•Insert the battery correctly.

•Shade the remote sensor from direct sunlight.

•Reconnect the speaker cord.

•Connect the cord properly. (See page 9.)

•Select the correct source. (See pages 12 to 16.)

•Press MUTING to cancel muting.

•Connect the cord properly. (See page 7.)

•Adjust balance. (See page 17.)

•Connect the cord properly. (See page 8.)

•Select the correct input.

•Replace the disc. (See page 21.)

•Enter password to change the parental (rating) level. (See page 39.)

“WRONG DISC” appears on the display.

“NO DISC” appears on the display though a disc is inserted.

Video and audio are distorted.

The edge is missing on the video image.

No picture is displayed on the TV screen, the picture is blurred, or the picture is divided into two parts.

• An incompatible disc is loaded. (See page			• Replace the disc.
		21.)
• The disc is dirty.		• Clean the disc.
•		The disc is scratched.	•		Replace the disc.
•		The disc is dirty.	•	Clean the disc.

•A VCR is connected between the center unit • Connect the center unit and TV directly. and the TV.

• Initial setup (TV screen size) is incorrect.		• Set TV screen size correctly.
			(See page 36.)
• The scanning mode is set to	• Change the scanning mode to
	“PROGRESSIVE TV” though the system		“INTERLACE TV.” (See page 10.)
	is connected to the TV which does not
	support the progressive video input.

Continuous static during FM broadcasts.

The system does not work correctly.

•The received signal is too weak.

•The station is too far away.

•The antenna is not connected correctly.

•Lightning or electronic noise interferes with operation of the microcomputer.

•Abrupt change of the temperature inside the unit from cold to hot causes condensation of the unit inside.

•Connect an external FM antenna (see page 5), or contact your dealer.

•Select another station.

•Check the connection. (See page 5.)

•Switch power off, and remove and re-insert the power plug in the socket.

•Switch power off and leave the unit a few hours before switching power on again.

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