Hey everybody, I followed a thread on here to get a new DMD chip after I had about 30% failed pixels. This is my first time ever taking a projector apart to fix a DMD chip issue, and this is also my first home theater projector. Basically, here's what happened:
- Removed projector from ceiling mount
- Let cool for an hour
- Removed the lamp and set it aside where it was never touched. (about 900 hours on the lamp)
- disassembled the projector more, unscrewed the logic board to lift it off the DMD chip, then pulled the Lens/DMD/color wheel assembly.
- Removed and replaced the DMD chip with this one: 1280 6138B 6038B DMD chip 6039B Optoma PRO360W HD600X Solve White Pixel FROM USA
-Applied a new thermal pad. I forget the brand of the pad but I use it to couple the graphics cards in my computer to their copper blocks, and they produce 188w of heat, so I think it would be sufficient here. I tried thermal paste but there is a gap between the heat sink and the back of the DMD chip so the paste wouldn't work
-Reassembled everything, replaced the bulb, I turned it on, and the Power light flashes orange, and the lamp light is solid red. Consulting the manual, it seems like lamp failure.
I also repeated the process with he original DMD chip, same results.
So did I screw up my lamp? or do you think there's something I could've missed in the disassembly/reassembly. Is there anything I could visually look for to see if the lamp has failed? The filament seems to be in 1 piece.
EDIT: Also, if it helps, I'm reading infinite ohms across the bulbs prongs