User guide
64 Matrox Marvel – User Guide
3
Cause
The image settings on your TV may need adjusting.
1
Solution
Some TVs have an aperture control sometimes called
PICTURE
. Lowering this setting may
reduce this problem. Reducing your TV’s brightness setting may also improve image quality.
For more information, see your TV manual.
Problem Video appears stretched or squished on a TV
1
Cause
Windows 95/98 –
If you’re using the
DualHead DVDMax
feature to view video full-screen
on your TV, the aspect ratio of a video may not match the aspect ratio of your TV.
1
Solution
Adjust software settings:
1
Access the Matrox PowerDesk
DualHead
property sheet (see “Accessing PowerDesk
property sheets”, page 21).
2
Click
DVDMax Options
.
3
Select
Preserve aspect ratio
.
4
Select the aspect ratio of your TV (4:3 or 16:9 – most TVs are 4:3).
5
Select
Detect based on video window size
.
6
Click
OK
or
Apply
for your changes to take effect.
For more information, see context-sensitive help.
Sound
The following troubleshooting items address problems related to sound cards.
Problem Sound doesn’t record, video files play back with no sound, or sound output is
distorted or too loud
1
Cause
If the sound problem is with a particular device (for example, TV or speaker), the volume
control on the device itself may need adjusting.
1
Solution
Adjust the volume control on the device itself.
2
Cause
Audio cables may be loose or incorrectly wired.
1
Solution
Make sure your sound card cables are properly connected (see steps 2, 3 and 4, starting on
page 10).
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