LG Electronics L1740P, L1940P manual Screen blinks, Screen color is mono or abnormal

Troubleshooting

Display image is incorrect

Display Position is incorrect.

On the screen background, vertical bars or stripes are visible.

Any horizontal noise appearing in any image or characters are not clearly portrayed.

The screen color is mono or abnormal.

The screen blinks.

Press the SET/AUTO button to automatically adjust your display image to the ideal setting.

If the results are unsatisfactory, adjust the image position using the H position and V position icon in the on screen display.

Check Control Panel --> Display --> Settings and see if the frequency or the resolution were changed. If yes, readjust the video card to the recommend resolution.

Press the SET/AUTO button to automatically adjust your display image to the ideal setting.

If the results are unsatisfactory, decrease the vertical bars or stripes using the CLOCK icon in the on screen display.

Press the SET/AUTO button to automatically adjust your display image to the ideal setting.

If the results are unsatisfactory, decrease the horizontal bars using the PHASE icon in the on screen display.

Check Control Panel --> Display --> Settings and adjust the display to the recommended resolution or adjust the display image to the ideal setting. Set the color setting higher than 24 bits (true color).

Check if the signal cable is properly connected and use a screwdriver to fasten if necessary.

Make sure the video card is properly inserted in the slot.

Set the color setting higher than 24 bits (true color) at Control Panel - Settings.

Check if the screen is set to interlace mode and if yes, change it to the recommend resolution.

Make sure the power voltage is high enough, It has to be higher than AC100-240V 50/60Hz.

A16