Philips 190B5CG User manual - Page 38

Imaging Problems, The screen is too bright or too dark

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Troubleshooting AUTO button not working properly Imaging Problems Display position is incorrect Image vibrates on the screen Vertical flicker appears q The Auto Function is designed for use on standard Macintosh or IBM-compatible PCs running Microsoft Windows. q It may not work properly if using nonstandard PC or video card. q The AUTO adjustment does not function when digital input is used for display. q Press the Auto button. q Adjust the image position using the Horizontal Position and/or Vertical Position in OSD Main Controls. q Check that the signal cable is properly connected to the graphics board or PC. q Press the Auto button. q Eliminate the vertical bars using the Clock Adjustment of VIDEO NOISE in OSD Main Controls. Horizontal flicker appears q Press the Auto button. q Eliminate the horizontal bars using the Phase Adjustment of VIDEO NOISE in OSD Main Controls. The screen is too bright or too dark An after-image appears q Adjust the contrast and brightness on OSD Main Controls. (The backlight of the LCD monitor has a fixed life span. When the screen becomes dark or begins to flicker, please contact your dealer). q If an image remains on the screen for an extended period of time, it may be imprinted in the screen and leave an afterimage. This usually disappears after a few hours file:///D|/My%20Documents/dfu/W9/english/190b5/safety/saf_troub.htm (2 of 3)2004-09-21 9:05:25 AM

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Troubleshooting
AUTO button not working properly
●
The Auto Function is designed for use on
standard Macintosh or IBM-compatible
PCs running Microsoft Windows.
●
It may not work properly if using
nonstandard PC or video card.
●
The AUTO adjustment does not function
when digital input is used for display.
Imaging Problems
Display position is incorrect
●
Press the Auto button.
●
Adjust the image position using the
Horizontal Position and/or Vertical
Position in OSD Main Controls.
Image vibrates on the screen
●
Check that the signal cable is properly
connected to the graphics board or PC.
Vertical flicker appears
●
Press the Auto button.
●
Eliminate the vertical bars using the
Clock Adjustment of VIDEO NOISE in
OSD Main Controls.
Horizontal flicker appears
●
Press the Auto button.
●
Eliminate the horizontal bars using the
Phase Adjustment of VIDEO NOISE in
OSD Main Controls.
The screen is too bright or too dark
●
Adjust the contrast and brightness on
OSD Main Controls. (The backlight of the
LCD monitor has a fixed life span. When
the screen becomes dark or begins to
flicker,
please contact your dealer).
An after-image appears
●
If an image remains on the screen for an
extended period of time, it may be
imprinted in the screen and leave an after-
image. This usually disappears after a
few hours
file:///D|/My%20Documents/dfu/W9/english/190b5/safety/saf_troub.htm (2 of 3)2004-09-21 9:05:25 AM