Troubleshooting, English – Compaq P1210 User Manual
Page 21
- 1 -
ENGLISH
Display is dark or
too bright
PROBLEM
ITEMS TO CHECK
Before calling your 1-800-OK-COMPAQ for service, please
check that the items below are properly connected or set.
In case of using a non-standard signal, please check the
pin assignments and the signal timing of your computer
with the specification outlined in Section 6. SPECIFICA-
TIONS and Section 7. APPENDIX.
LOCATION
No
picture
LED On
(Green)
Contrast and brightness controls.
Power switch.
AC power cord disconnected.
Signal cable disconnected.
Computer power switch.
Power management function is active.
Signal cable disconnected.
Computer power switch.
Power management function is active.
Input signal frequency range is too high or too low for the
monitor to synchronize with.
Do "GEOMETRY-RESET" or "ALL RESET" for a standard signal.
Adjust HORIZ-SIZE, VERT-SIZE, HORIZ-PHASE, and
VERT-POSITION with non-standard signals.
Monitor may not be able to get full-screen image depend
on signal. In this case, please select other resolution, or
other vertical refresh timing.
Make sure you wait a few seconds after adjusting the size
of the image before changing or disconnecting the signal.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Front
Front
Rear
Rear
Computer
Press any key on the keyboard
or move the mouse.
Rear
Computer
Press any key on the keyboard
or move the mouse.
Check the specification of
graphics adapter
Front (OSD)
Front (OSD)
Front (OSD)
Abnormal picture
Display is miss-
ing, center shifts,
or too small or too
large of a display
size
The following message appeared.
The following message appeared.
"VIDEO LEVEL" is not at the appropriate position for
your graphics adapter output. (0.7v or 1.0Vp-p).
5
TROUBLESHOOTING
LED Off
LED On
(Amber)
ATTENTION
ATTENTION
PLEASE CHANGE
PLEASE CHANGE
SIGNAL TIMING.
SIGNAL TIMING.
SIGNAL FREQUENCY
SIGNAL FREQUENCY
IS OUT OF RANGE.
IS OUT OF RANGE.
FH
FH @ @
@ @24.8KHz FV
24.8KHz FV @ 43.0
43.0Hz