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Many of the new generation of projectors and computer monitors require TTL sync levels to operate correct-
ly. The D15 output on the Faroudja processors output TTL sync. The best approach in these circumstances
is to use a standard D15 to RGB breakout cable and connect it to the D15 connection on the Faroudja
processor. Use the H & V sync from the breakout cable and the R, G, B from the BNC connectors on the
rear panel for the best image.
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 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
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
termination switch off and connect a composite monitor to the composite input Loop input.
To make sure that a projector is not the cause of a problem, connect a 31.5KHz multisync monitor to the
15pin output connector and check the display to see if it is correct or if the monitor display shows the same
problem as the projector display, then the VP250SE has a problem and you should contact our Technical
Support Department.
TROUBLESHOOTING
