So, we replaced our TV with a front projector and the image is absolutely amazing. The screen is just HUGE! But we’ve noticed a problem. At the top of the screen, about 4 inches from the top and about 2 inches wide is a horizontal band of squiggly pixels that runs the width of the screen. The band shifts left to right and only stays within the confines of that 2-inch band. I’m still not providing a clear picture, I don’t think. Jittery might be the best word to describe it. That part of the image is jittery. And only that band.
What we’ve tried:
- A different DVD player
- A different projector (same model however)
- Different cables (power, S-Video, composite)
- Rewired the circuit so it all comes straight from the panel and all audio/video runs on the same circuit
- Different outlets
- Running nothing but the projector and the DVD player (either the old or new one)
- Turning off power to the dimmable lights (which are nowhere near the projector)
InFocus’s tech support said it was a ground loop problem. Does this sound right to anyone else?
I’m not certain, and I don’t want to spend several hundred bucks on a video isolator only to find it still doesn’t fix the problem. My uncertainty stems from all the descriptions of ground loop video problems I’ve read said that it was horizontal scrolling bands. Our band doesn’t scroll; it jitters in place.
Any help would be greatly appreciated.