Philips 150B4CB Electronic User's Manual page 38

Troubleshooting
Screen says
AUTO button not working properly
Imaging Problems
Display position is incorrect
Image vibrates on the screen
Vertical flicker appears
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Make sure the vertical sync of input signal is
within the range of 56 ~ 75 Hz.
Change the refresh rate to 56~75Hz within 10
minutes.
Re-power on monitor to start over again if
you failed to change the refresh rate within 10
minutes.
The Auto Function is designed for use on
standard Macintosh or IBM-compatible PCs
running Microsoft Windows.
It may not work properly if you are using non-
standard PC or video card.
Press the Auto button.
Adjust the image position using the
Horizontal Position &/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.