Compaq L1502 Manual De Usuario

A–2

User’s Guide

Troubleshooting

Using the Worldwide Web

Before contacting customer services, refer to the support Web site 
at: 

http://www.hp.com/go/support

Image appears 
blurred, indistinct, or 
too dark.

Brightness and contrast 
are too low.

Press the Minus button on 
the monitor front panel to 
auto-adjust the screen. If that 
doesn’t work, press the 
Menu button to open the 
Basic OSD Menu, and 
adjust the brightness and 
contrast scales as needed.

Image is not 
centered.

Position may need 
adjustment.

Press the Menu button to 
access the Advanced OSD 
menu. Select Image 
Control/Horizontal Position 
or Vertical Position to adjust 
the horizontal or vertical 
position of the image.

“Check Video 
Cable” is displayed 
on screen.

Monitor video cable is 
disconnected.

Connect the 15-pin monitor 
video cable to the VGA 
connector on the computer. 
Be sure that the computer 
power is off while 
connecting the video cable.

“Input Signal Out of 
Range” is displayed 
on screen.

Video resolution and/or 
refresh rate are set 
higher than what your 
monitor supports.

Restart your computer and 
enter Windows Safe Mode 
by pressing the F6 Function 
key when the computer starts 
to boot up. Change your 
settings to a supported 
setting . Restart your 
computer so that the new 
settings take effect.

Problem

Possible Cause

Solution