Compaq 7550 - Manual (Page 21)

Reference Guide A–1
A
Troubleshooting
Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the
recommended solutions.
Problem Possible Cause Solution
Screen is blank. Power cord is disconnected. Connect the power cord.
Power switch is off. Turn on power.
Video cable is improperly
connected. Connect video cable properly.
Screen blanking utility is
active. Depress any key on the
keyboard or move the mouse.
Image appears
blurred, indistinct, or
too dark. Brightness and contrast are
too low. Press the SELECT button to
access the On-Screen
Display. Select the Brightness
and/or Contrast icons to
adjust as needed.
Color is abnormal. A magnetic object may be
nearby. Move the object farther away.
Monitor may have been
moved or inadvertently
bumped. Press the SELECT button to
access the On-Screen
Display. Select Degauss to
activate.
Compaq suggests you not
degauss more than once
within a 30-minute period of
time.
Image is too large or
too small. Horizontal width may need
adjustment. Press the SELECT button to
access the On-Screen
Display. Select H. Size to
adjust as needed.
Vertical height may need
adjustment. Press the SELECT button to
access the On-Screen
Display. Select V. Size to
adjust as needed.
Image is not
centered. Horizontal position may need
adjustment. Press the SELECT button to
access the On-Screen
Display. Select H. Position to
adjust as needed.