Troubleshooting - Philips 150B6CB/00 Service Manual

16
170B6 LCD
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Common Problems
Having this problem
No Picture
(Power LED not lit)
No Picture
(Power LED is amber or yellow)
Screen says
ATTENTION
NO VIDEO INPUT
Screen says
ATTENTION
THIS IS 85HZ OVERDRIVE,
CHANGE COMPUTER DISPLAY
INPUT TO 1280X1024@60HZ
AUTO button not working properly
Imaging Problems
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

Troubleshooting

Check these items
1.Make sure the power cord is plugged into the power outlet and into the back of the
monitor.
2.First, ensure that the power button on the front of the monitor is in the OFF position,
then press it to the ON position.
1.Make sure the computer is turned on.
2. Make sure the signal cable is properly connected to your computer.
3.Check to see if the monitor cable has bent pins.
4.The Energy Saving feature may be activated
1. Make sure the monitor cable is properly connected to your computer. (Also refer
to the Quick Set-Up Guide).
2.Check to see if the monitor cable has bent pins.
3. Make sure the computer is turned on.
1. Make sure the vertical sync of input signal is within the range of 56 ~ 75 Hz.
2.Change the refresh rate to 56~75Hz within 10 minutes.
3. Re-power on monitor to start over again if you failed to change the refresh rate
within 10 minutes.
1.The Auto Function is designed for use on standard Macintosh or IBM-compatible
PCs running Microsoft Windows.
2. It may not work properly if using nonstandard PC or video card.
3.The AUTO adjustment does not function when digital input is used for display.
1.Press the Auto button.
2. 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.
1. Press the Auto button.
2. Eliminate the vertical bars using the Clock Adjustment of VIDEO NOISE in
OSD Main Controls.
1. Press the Auto button.
2. Eliminate the vertical bars using the Clock 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 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 after-image will disappear after a peroid
of time.
The remaining dots are normal characteristic of the liquid crystal used in
today's technology.