Proxima 4100 User Manual page 76

PROBLEM LIKELY CAUSE
Projected image Projector too close to screen
smaller than screen
Zoom not set correctly on
zoom model
No image on the Power switch off or
monitor projector not running
Cable not connected
Streaks on monitor Video cable for monitor
plugged into projector is
upside-down
Faint screen Low CONTRAST or
BRIGHTNESS settings
Jittery, fuzzy text Out of sync
Image off-center Position controls (arrow keys) Adjust position controls
Compatibility problem
Misalignment or damage to
optical elements
Cannot get entire Compatibility problems
image on screen;
scrambled image
Wrong video resolution
"Shimmering" colors SYNC out of adjustment
Colors weak Weak video signal
Getting excessive CONTRAST and/or
white or washout BRIGHTNESS too high
POSSIBLE SOLUTION(S)
Move projector away from
screen
Adjust zoom
Computer must be on for
computer monitor to display
Turn on projector and light the
lamp
Connect cable
Check and reset cable
connection
Adjust CONTRAST and/or
BRIGHTNESS
Adjust SYNC
Adjust Dot Clock
Make sure the projector is
compatible with one of the
standards listed in Appendix A
Projector requires service
Make sure projector is
compatible with one of the
standards listed in Appendix A
Set video resolution on
computer to 640 x 480
Adjust SYNC
Check for faulty video source,
bad connection, or frayed cable
Adjust CONTRAST and/or
BRIGHTNESS
Troubleshooting 6-3