Compaq 177620-006 Manual De Usuario

Troubleshooting Guide

Troubleshooting Without Diagnostics

If you encounter display problems, see the documentation that came 
with your monitor and to the common causes and solutions listed in 
the following table.

Blank screen.

Monitor is not turned 
on and the monitor light 
is not on.

Turn on the monitor and check that 
the monitor light is on.

The cable connections 
are not correct.

Check the cable connection from 
the monitor to the computer and to 
the electrical outlet.

The energy saver 
feature has been 
enabled.

Press any key or click the mouse 
button and, if set, type your 
password.

The RGB (Red, Green, 
Blue) input switch 
on the monitor is 
incorrectly set.

Set the monitor’s RGB input switch 
to 75 ohms and, if there is a sync 
switch, set it to external.

System ROM is bad; 
system is running in 
Failsafe Boot Block 
mode (indicated by one 
long beep and three 
short beeps).

Reflash the ROM using a ROMPaq 
diskette. See the “Failsafe Boot 
Block ROM” section of the 

Desktop 

Management Guide for more 
information.

You are using a 
fixed-sync monitor and 
it won’t sync at the 
resolution chosen.

Be sure that the monitor can accept 
the same sweep rate as the 
resolution chosen.

Computer is in Stand 
By mode.

Press the power button to resume 
from Stand By mode.

177620-006.book  Page 15  Thursday, March 14, 2002  3:16 PM