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Hoping that someone here can help confirm my suspicion that my HLP5663 has a dead imager or DMD board. I can power the set on and the lamp fires and stays on, but I get no image at all on the screen, not even any of the OSD menus. All fans are operational, and I can see 3 LEDs on the input board illuminated, and one on the DMD board, so I assume power is good.

I had noticed for the past week or so random green horizontal lines through the image when the set was powered up cold. If I would let it run for a few minutes, then cycle power the image would be fine.

Is there an easy way to confirm the analog/input boards are working fine? Can you actually drive the DMD board directly with a properly formatted DVI signal and see if it displays an image, or is the interface proprietary?

Thanks in advance for any help / advice anyone can provide.

Hi as fas as i know this is a DMD issue ( green vertical or horizontal bars or green dots in the picture and in the menu screen) good luck

Is it worth fixing?

Hi, mmmm the thing is that it is very hard to find a DMD board alone most of the time you find it with the whole light engine here is an example http://www.discount-merchant.com/SAMSUN ... 160107.htm and to be honest i recommend you to get another Tv not DLP hope this helps o btw that light engine is for that tv model but if youre going to replace it be sure it has the same part number.