Acer P1223 - Manual (Page 45)

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English Appendices
Troubleshooting
If you experience a problem with your Acer projector, refer to the following
troubleshooting guide. If the problem persists, please contact your local reseller or
service center.
Image problems and solutions
# Problem Solution
1 No image appears
onscreen • Ensure the projector is properly connected as
described in "Getting started" on page 8.
• Ensure none of the connector pins is bent or broken.
• Check if the projector lamp has been securely installed.
Please refer to "Replacing the lamp" on page 41.
2 Partial, scrolling or
incorrectly
displayed image
[For PC (Windows
95/98/2000/XP)] • Press RESYNC on the remote control.
• For an incorrectly displayed image:
• Open My Computer > Control Panel, and then
double-click the Display icon.
• Select the Settings tab.
• Verify that your display resolution setting is lower
than or equal to UXGA (1600 x 1200).
If the problem still appears, change the monitor display you
are using and follow the steps below:
• Verify that the resolution setting is lower than or
equal to UXGA (1600 x 1200).
• Click the Change button under the Monitor tab.
• Click Show all devices. Next, select Standard
monitor types under the SP box, and choose
the resolution mode you need under the Models
box.
• Verify that the resolution setting of the monitor
display is lower than or equal to UXGA (1600 x
1200).
4 The screen of the
notebook
computer is not
displaying your
presentation • If you are using a Microsoft Windows based notebook:
Some notebook PCs may deactivate their own screens
when a second display device is in use. Each has a
different way to be reactivated. Refer to your
computer's manual for detailed information.
• If you are using an Apple Mac OS based notebook: In
System Preferences, open Display and select Video
Mirroring On.