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Mitsubishi WD60735 Dark Picture

post #1 of 10
Thread Starter 
Have a three year old Mitsubishi WD60735 dlp tv. About a month ago the picture started to get noticeably dark even with contrast and brightness turned all of the way up. I figured that it was a lamp issue so I replaced the lamp. However, there is no noticeable difference between the old and new lamp. Any other suggestions?
post #2 of 10
How many lamp hours?
Have you cleaned the inner lens? Search this sub forum how to do both.
post #3 of 10
Thread Starter 
Brand new lamp, and cleaned the front lens (removed the screen) and cleaned the lens that abuts the lamp, I opened the back and found massive amounts of dust, went a few layers down but stopped at what I think is the light engine, couldn't access any more lenses.
post #4 of 10
My bad, I should of specified inner lens of the light engine.
Look for my thread on "no more halos". I also was looking for the set hours.
post #5 of 10
Thread Starter 
The set has 4800 hours.
post #6 of 10
Over how long a period of time did you notice it? Was it all at once, days or weeks?
It might be trouble with a processing board, not optical/lamp related.

I never heard of any of these getting 'dark' except over thousands of hours of use.
post #7 of 10
Thread Starter 
It was over a several month period. It wasn't bad at first, I just noticed that I had to turn up the brightness a few notches and that would return it to normal. But once I had turned the brightness up full it became very noticeable quick. It went from normal looking (maybe a little dark in a bright room) to unwatchable within about 3 weeks.
post #8 of 10
I will have to say it's a electronic issue, no idea where to start.

You do have the service manual don't you?
post #9 of 10
Thread Starter 
No I don't but I imagine that I could probably find one online somewhere.
post #10 of 10

Ours turned dark picture pretty much over night.  Is it a lamp or does anyone know?  Changing contrast  & brightness didn't affect it.

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