Philips BRILLIANCE 230W5 User Manual page 38

Troubleshooting
Display position is incorrect
Image vibrates on the screen
Vertical flicker appears
Horizontal flicker appears
The screen is too bright or too dark
An after-image appears
An after-image remains after the power
has been turned off.
Green, red, blue, dark, and white dots
remains
file:///D|/My%20Documents/dfu/230W/english/230w5/safety/saf_troub.htm (2 of 3)2004-09-21 7:58:27 AM
Press the Auto button.
Adjust the image position using the
Horizontal Position and/or Vertical
Position in OSD Main Controls.
Check that the signal cable is properly
connected to the graphics board or PC.
Press the Auto button.
Eliminate the vertical bars using the
Clock Adjustment of VIDEO NOISE in
OSD Main Controls.
Press the Auto button.
Eliminate the horizontal bars using the
Phase Adjustment of VIDEO NOISE in
OSD Main Controls.
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).
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
This is characteristic of liquid crystal and
is not caused by a malfunction or
deterioration of the liquid crystal. The
after-image will disappear after a peroid
of time.
The remaining dots are normal
characteristic of the liquid crystal used in
today's technology.