Strange ghost Circles after DMD chip and Lamp Replacement
I recently replaced the DMD chip and put in a new Philips bulb and new Mitsubishi housing as well. I replaced the lamp because it was dim, and the DMD board because I had white dots on my screen. The white dots are gone and the screen is bright (had to turn brightness down to 22 from 30's before), but now when the screen is displaying a dark or black image, I can see about 6 grayish (ghostly almost faded) solid circles (almost perfect looking circles), all of them about the width of a coke can, and they all have different brightnesses slightly.
I own a 2009 73 inch 73737 Mitsubishi set. I cleaned it out well with a vacuum when I did the work. I also made sure there was no dust on the projector lens and cleaned it carefully with lens tissue. I didn't touch the surface or glass on the DMD chip, it looked really clean...so I skipped the shopjimmy step of wiping it off with a micro fiber cloth.
I really don't want to keep moving this huge screen around to take it apart, so I'd like to be as efficient as possible this time fixing it.
I'll try and take a picture of the problem later. But they are literally about the size of a coke can ring, and not just a grey ring, but filled in as well.