Troubleshooting
The screen says
"CONTROL MENU IS LOCKED" when you press the OK knob
Picture is too large or too small
Edges of the picture are not square
Color appears blotchy
Missing one or more colors
Dim Picture
Picture has double image
Picture is not sharp
Unstable picture
●Press the OK knob and hold for around 15 seconds to release the lock.
●Adjust the Horizontal Size and/or Vertical Size. Refer to the On Screen Display chapter for details.
●Refer to the Adjust Shape item in On Screen Display chapter for details.
●Remove any nearby magnetic objects.
●"Degauss" your monitor. Refer to the Degauss item in On Screen Display chapter for details.
●Face the monitor toward the East for the best picture quality.
●Make sure the monitor cable is properly connected to your computer.
●"Degauss" your monitor. Refer to the Degauss item in On Screen Display chapter for details.
●Check to see if the monitor cable has bent pins.
●Check the Color Temperature. Refer to the Color Temperature item in On Screen Display chapter for details.
●Make sure the Brightness and Contrast controls are set correctly.
●"Degauss" your monitor. Refer to the Degauss item in On Screen Display chapter for details.
●Eliminate the use of extension cables and/or video switch box.
●Adjust Moire to zero. Refer to the Adjust Moire item in On Screen Display chapter for details.
●Low down the Contrast and/or Brightness level.
●Adjust Moire to zero. Refer to the Adjust Moire item in On Screen Display chapter for details.
●"Degauss" your monitor. Refer to the Degauss item in On Screen Display chapter for details.
●Increase the refresh rate of video signal at least to 75Hz. Refer to the Quick Start Guide or contact your computer vender for details.
●Adjust Moire to zero. Refer to the Adjust Moire item in On Screen Display chapter for details.
For further assistance, refer to the Consumer Information Centers list to contact your local Philips distributor.
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