Troubleshooting: Before Contacting Service Personnel

No sound or picture.

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

 

Check that you have pressed the

button on your set.

 

Check the picture contrast and brightness settings.

 

Check the volume.

 

Normal picture but no

Check the volume.

 

sound.

Check whether the MUTE button has been pressed on the remote control.

 

Check if "TV Speaker" is on.

 

Screen is black and power

On your computer check; Power, Signal Cable.

indicator light blinks steadily.

The TV is using its power management system.

 

Move the computer’s mouse or press any key on the keyboard.

No picture or black and

Adjust the colour settings.

 

white picture.

Check that the broadcast system selected is correct.

Sound and picture

Try to identify the electrical appliance that is affecting the set and move it

interference.

further away.

 

 

Plug your set into a different mains socket.

Blurred or snowy picture,

Check the direction, location and connections of your aerial.

distorted sound.

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

Remote control malfunctions.

Replace the remote control batteries.

 

 

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

 

Check the battery terminals.

 

'Check signal cable.'

Check that the signal cable is firmly connected to the PC or video sources.

message is displayed.

Check that the PC or video sources are turned on.

On PC mode, 'Mode Not

Check the maximum resolution and the frequency of the video adaptor.

Supported' message is

Compare these values with the data in the Display Modes.

displayed.

 

 

The damaged picture appears

If "Just Scan" is selected in some external devices, the damaged picture

in the corner of the screen.

may appear in the corner of the screen. This symptom is caused by external

 

devices, not TV.

 

The 'Resets all settings to

This appears when you press and hold the EXIT button for a while. The prod-

the default values' message

uct settings are reset to the factory defaults.

appears.

 

 

The TFT LCD panel uses a panel consisting of sub pixels (3 133 440) which require sophisticated technology to produce. However, there may be few bright or dark pixels on the screen. These pixels will have no impact on the performance of the product.

English - 33

Page 35
Image 35
Univex LCD TV user manual Troubleshooting Before Contacting Service Personnel