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Troubleshooting - Compaq P1210 User Manual

Compaq user's guide color monitor p710, p910, p1210.
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5

TROUBLESHOOTING

PROBLEM
Contrast and brightness controls.
LED On
(Green)
Power switch.
LED Off
AC power cord disconnected.
No
picture
Signal cable disconnected.
Computer power switch.
LED On
Power management function is active.
(Amber)
The following message appeared.
Signal cable disconnected.
Computer power switch.
Power management function is active.
The following message appeared.
Input signal frequency range is too high or too low for the
monitor to synchronize with.
ATTENTION
ATTENTION
SIGNAL FREQUENCY
SIGNAL FREQUENCY
IS
IS
OUT OF RANGE.
OUT OF RANGE.
FH
FH @ @
@ @24.8KHz
24.8KHz
FV
FV
@ 43.0
43.0Hz
PLEASE CHANGE
PLEASE CHANGE
SIGNAL TIMING.
SIGNAL TIMING.
Do "GEOMETRY-RESET" or "ALL RESET" for a standard signal.
Adjust HORIZ-SIZE, VERT-SIZE, HORIZ-PHASE, and
Display is miss-
VERT-POSITION with non-standard signals.
ing, center shifts,
Monitor may not be able to get full-screen image depend
or too small or too
on signal. In this case, please select other resolution, or
large of a display
other vertical refresh timing.
size
Make sure you wait a few seconds after adjusting the size
of the image before changing or disconnecting the signal.
"VIDEO LEVEL" is not at the appropriate position for
Display is dark or
your graphics adapter output. (0.7v or 1.0Vp-p).
too bright
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.
ITEMS TO CHECK
- 1 -
LOCATION
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)

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