Proxima Multimedia LCD Projectors Halogen Guide de l'utilisateur Page 66

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5–2 • User’s Guide
Chapter 5 • Troubleshooting
Problem Likely Cause Possible Solution(s)
No image on
computer screen
Power switch off or
projector not on
Projector must be on for
computer monitor to
display; turn on
projector.
Cable not connected Connect cable
Monochrome on
color monitor
Computer was turned
on before projector
Turn projector on and
re-boot computer
Computer’s external
video port set
incorrectly
Set computer’s external
port to “color”
Streaks on monitor Video cable plugged
into computer is
upside-down
Check and re-set cable
connections
Faint screen Low intensity Adjust BRIGHTNESS and
CONTRAST
Jittery, fuzzy letters Out of sync Adjust SYNC control
Image off-center Position controls (arrow
keys)
Adjust position controls;
if image will not center,
check for compatibility
problems
Compatibility problems Verify projector is image
compatible with one of
the standards listed in
Appendix A
Misalignment or damage
to optical elements
Projector requires
servicing
Cannot get entire
image on screen;
scrambled image
Compatibility problems Verify that the projector
is image compatible with
one of the standards
listed in Appendix A
“Shimmering” colors SYNC or BRIGHTNESS
out of adjustment
Adjust SYNC or
BRIGHTNESS
No video image
projected
Video source(s) Check video source(s)
(composite or S-VHS)
for power ON and
proper operation
Loose/improper cabling Check and secure cabling
between video source(s)
and projector
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