Proxima ASA 4100/4200 - Manual (Page 75)

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