HP WT431AA#ABA User Guide - Page 17

Troubleshooting, Solving common problems

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2 Troubleshooting Solving common problems Problem Possible cause Solution No image appears on the screen. A cable is disconnected. Be sure that all cables are properly connected. Check all connector pins to be sure they are not bent or broken. Partial, scrolling, or incorrectly projected The tracking, frequency, or resolution image. settings may need to be adjusted. Press the 4-way button left to automatically adjust the frequency and tracking. An on-screen message indicates that an automatic adjustment is in progress. Be sure the resolution of the computer is set to SVGA 858x600. If you have difficulty changing the resolution or the monitor freezes, restart the computer and projector. If the problem continues, upgrade the computer with the latest version of the video card driver. Contact technical support for more information. The projected image is not displayed on The VGA display settings may need to be Using the Picture menu, adjust the VGA the screen. changed. display settings of the projector. In Windows, change the display resolution on the computer to an allowable setting. The image is unstable, flickering, or has The tracking may need to be adjusted. a flickering vertical bar. Adjust the tracking by pressing the MENU button, and then selecting Picture > VGA settings > Tracking. The image is distorted. The focus may need to be adjusted. Use the projector's focus ring to adjust the projected image. Be sure that the projection screen is within the required distance from the projector (8.5 feet [2.6 m]). The image color is incorrect. The display is receiving the incorrect signal output from the VGA graphics card. Using the Picture menu, set the signal output to RGB. Using the Picture menu, verify that the colors (red, green, blue) are properly set. Solving common problems 13

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2
Troubleshooting
Solving common problems
Problem
Possible cause
Solution
No image appears on the screen.
A cable is disconnected.
Be sure that all cables are properly
connected.
Check all connector pins to be sure they
are not bent or broken.
Partial, scrolling, or incorrectly projected
image.
The tracking, frequency, or resolution
settings may need to be adjusted.
Press the 4-way button left to
automatically adjust the frequency and
tracking. An on-screen message
indicates that an automatic adjustment is
in progress.
Be sure the resolution of the computer is
set to SVGA 858x600.
If you have difficulty changing the
resolution or the monitor freezes, restart
the computer and projector.
If the problem continues, upgrade the
computer with the latest version of the
video card driver. Contact technical
support for more information.
The projected image is not displayed on
the screen.
The VGA display settings may need to be
changed.
Using the Picture menu, adjust the VGA
display settings of the projector.
In Windows, change the display
resolution on the computer to an
allowable setting.
The image is unstable, flickering, or has
a flickering vertical bar.
The tracking may need to be adjusted.
Adjust the tracking by pressing the
MENU
button, and then selecting
Picture >
VGA settings > Tracking
.
The image is distorted.
The focus may need to be adjusted.
Use the projector's focus ring to adjust
the projected image.
Be sure that the projection screen is
within the required distance from the
projector (8.5 feet [2.6 m]).
The image color is incorrect.
The display is receiving the incorrect
signal output from the VGA graphics
card.
Using the Picture menu, set the signal
output to RGB.
Using the Picture menu, verify that the
colors (red, green, blue) are properly set.
Solving common problems
13