Troubleshooting

If you have problem with your TV, refer to the following table for possible causes. If you can’t solve the problem, please contact your local dealer or our service center.

Problem

Solution

TV will not turn on

Make sure the power cord is plugged in, then press [ POWER ].

 

The remote control batteries may be dead. Replace the batteries.

 

 

No picture, no sound

Check all cables and antenna are accurately connected.

 

Check if power plug or outlet is working.

 

 

No sound, picture OK

The sound may be muted. Press [ VOL ].

 

The station may have broadcast difficulty. Try another channel.

 

Check if [ MUTE ] button is inadvertently pressed.

 

 

Poor sound, picture OK

The station may have broadcast difficulty. Try another channel.

 

 

Poor picture, sound OK

Check the antenna connection.

 

broadcast difficulty. Try another channel.

 

Adjust PICTURE menu.

 

 

Poor picture and noise

Check the antenna connection.

 

TV signals might be too weak.

 

Possible interference from appliance, neon lights or high voltage lines.

 

Is there interference of high voltage line or neon lights?

 

 

Multiple/shadow images, sound OK

The station may have broadcast difficulty. Try another channel.

 

 

Poor color or no color

The station may have broadcast difficulty. Try another channel.

 

Adjust TINT and COLOR in Picture menu.

 

 

No stereo or SAP sound from a

 

known MTS broadcast

Make sure the MTS feature is set properly.

 

 

LAMP indicator in red for a long time

Lamp ignition fail. Contact the dealer.

 

 

TEMP indicator in red

The fan is stuck. Contact the dealer.

 

It indicates the screen has led to overheat of the TV and the screen will

 

shut off automatically. After the TEMP indicator turns green again, press

 

[ POWER ] or STANDBY/ON on the panel.

 

 

The remote control does not operate

Make sure [ VIDEO ] and [ DATA] are accurately set.

 

The remote control batteries may be dead. Replace the batteries.

 

 

When Connecting Computer Sources

Picture unsteady or flickering

Use TRACKING menu to make adjustment.

 

Change display color setting in your computer.

 

 

Picture having vertical flickering stripes

Use FREQUENCY menu to make adjustment.

 

Check and reset the display mode of your display card to make it

 

consistent with this product.

 

 

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Optoma Technology EP652A manual Troubleshooting, When Connecting Computer Sources, Problem Solution