Samsung 21H4 Owner's Instructions Manual - Page 31

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Automatic Degaussing to Remove Color Patches

A degaussing coil is mounted around the picture tube, so you do not normally need to degauss the

television manually.

If you move the television to a different position and color patches appear on the screen, you must:

◆ Switch the television off by pressing the "

◆ Unplug the television from the wall socket

◆ Leave the television power-off (stand-by) for about 30 minutes so that the automatic degauss

function can be activated, and then press the POWER

☛

If your television will be left unattended, press the "

television off.

Troubleshooting: Before Contacting Service Personnel

Before contacting Samsung after-sales service, perform the following simple checks.

If you cannot solve the problem using the instructions below, note the model and serial number of the

television and contact your local dealer.

No sound or picture

Normal picture but no sound

No picture or black and white picture

Sound and picture interference

Blurred or snowy picture,

distorted sound

Remote control malfunctions

11/18/03

10:09 AM

Page 31

◆ Check that the mains lead has been connected to a wall socket.

◆ Check that you have pressed the "

◆ Check the picture contrast and brightness settings.

◆ Check the volume.

◆ Check whether the MUTE

remote control.

◆ Adjust the colour settings.

◆ Check that the broadcast system selected is correct.

◆ Try to identify the electrical appliance that is affecting the television

and move it further away.

◆ Plug your television into a different mains socket.

◆ Check the direction, location and connections of your aerial.

This interference is often due to the use of an indoor aerial.

◆ Replace the remote control batteries.

◆ Clean the upper edge of the remote control (transmission window).

◆ Check the battery terminals.

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" (ON/OFF) button on the front panel

button on the remote control.

" (ON/OFF) button to turn your

" (ON/OFF) button.

button has been pressed on the

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