Philips 150MT Electronic User's Manual page 47

Troubleshooting
Vertical flicker appears
Horizontal flicker appears
The screen is too bright or too dark
An after-image appears
An afterimage remains after the power
has been turned off.
Green, red, blue, dark and white dots
remain.
Visible brighter spots in dark scenes
TV and Audio Problems
file:///D|/TV/english/150mt/safety/saf_troub.htm (2 of 3) [12/24/2002 11:43:38 AM]
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 in OSD
Main Controls. (The backlight of the product
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 afterimage 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 afterimage will disappear
after a given amount of time
The remaining dots are normal characteristic
of the liquid crystal used in today's
technology.
The brighter spots are normal when the
ambient light is very low.
Increase the ambient light to make the spots
invisible