Solving Display Problems - Compaq Professional Workstation AP200 Reference Manual

6-8 Troubleshooting

Solving Display Problems

If you encounter display problems, refer to the documentation that came
with your monitor and to the common causes and solutions listed in the
following table.
Problem
Screen is blank.
Writer: IM Project: Compaq Professional Workstation AP200 Reference Guide Comments: 352620-003
Table 6-4
Solving Display Problems
Cause
Monitor is not turned on and
the monitor light is not on.
The cable connections are not
correct.
The energy saver feature has
been enabled.
The RGB (Red, Green, Blue)
input switch on the back of the
monitor is incorrectly set.
System ROM is bad; system is
running in Failsafe Boot Block
mode (indicated by one long
beep and three short beeps).
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COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Solution
Turn on the monitor and
verify that the monitor light is
on.
Check the cable connection
from the monitor to the
workstation and to the
grounded AC outlet.
Press any key or click the
mouse button and, if it is set,
type your password.
Set the monitor's RGB input
switch to 75 ohms and, if
there is a sync switch, set it
to External.
Reflash the ROM using a
ROMPaq diskette. See the
"Failsafe Boot Block ROM"
section of Chapter 3 for more
information.
Continued