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Problem Solution
No power light Unit not turned on
Unit not plugged in
Fuse blown
No power at plug
No picture Video source not selected
No video source connected or operating
Projector/Monitor not turned on
Projector/Monitor not connected correctly
Bad video cable
Unit in freeze mode
Check brightness and contrast levels
Colors bleeding Check LD100 termination
Check projector/monitor termination
Contrast set too high
Color set too high
Picture not stable Check interface cables
Sync cables are swapped or not connected
Input source not selected correctly
Check input terminations
Set Sync to STD.
Projector Fast/Slow Horizontal time constant. Should be set to fast.
Incorrect colors Tint in manual mode
Defective output cable
RGB cables are swapped
Check projector/monitor termination
Input source not selected correctly
No burst on input
RGB or Y,R-Y, B-Y Inputs not terminated.
Picture washed out Composite input not terminated
NOTE: To make sure that an input source is not the cause of a problem for a composite source, turn the ter-
mination switch off and connect a composite monitor to the composite input Loop input. For a R,G,B input
source, turn the three termination switches off and connect a R,G,B monitor to the R,G,B input Loop input.
To make sure that a projector is not the cause of a problem, connect a VGA monitor to the 15pin VGA output
connector and check the display to see if it is correct and if the projector is the problem. If the monitor display
shows the same problem as the projector display, then the line doubler has a problem and you should contact
our Technical Support Department.
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TROUBLESHOOTING