Acer P1223 - Manual (Page 46)

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Problems with the projector
4 Image is unstable
or flickering • Adjust the Tracking to correct it. Refer to "Image" on
page 22 for more information.
• Change the display color depth settings on your
computer.
5 Image has vertical
flickering bar • Use Frequency to make an adjustment. Refer to
"Image" on page 22 for more information.
• Check and reconfigure the display mode of your
graphics card to make it compatible with the projector.
6 Image is out of
focus • Adjusts the focus ring on the projector lens.
• Make sure the projection screen is within the required
distance from the projector. Refer to "Optimizing
image size and distance" on page 12 for more
information.
7 Image is stretched
when displaying a
widescreen DVD
title When you play a DVD encoded in anamorphic or 16:9 aspect
ratio you may need to adjust the following settings:
•
If you play a 4:3 format DVD title, please change the
format to 4:3 in the projector OSD.
• If the image is still stretched, you will also need to
adjust the aspect ratio. Set up the display format to
16:9 (wide) aspect ratio on your DVD player.
8 Image is too small
or too large • Adjust the zoom ring on the front of the projector.
• Move the projector closer to or further from the screen.
• Press MENU on the remote control. Go to Image >
Aspect Ratio and try different settings or press Aspect
Ratio on the remote control to adjust directly.
9 Image has slanted
sides • If possible, reposition the projector so that it is
centered on the screen.
• Press the Keystone / button on the remote
control until the sides are vertical.
10 Image is reversed • Select Image > Projection on the OSD and adjust the
projection direction.
# Condition Solution
1 The projector stops responding
to all controls If possible, turn off the projector, then unplug
the power cord and wait at least 30 seconds
before reconnecting power.