dlack dots
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- ChubbsTech
- TV Wizard
- Posts: 404
- Joined: Thu Feb 18, 2010 12:53 am
- Location: Santa Ana Ca.
Re: dlack dots
What kind of projection tv do you have sony, mitsubishi , samsung ?
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- Contributor
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Re: dlack dots
There is a fan that directly cools this chip so I believe the heat speculation is correct.
Once you go in to change the DMD device (it is easy to do), make sure you vacuum the boards and other heat producing components and the cooling fans (as many as three) to keep cooing optimized. Mine was not full of dust but the heat sink on the back of the DMD chip was pretty clogged up with dust.
If you need help understanding how to change the chip, go to Youtube. It is well documented there.
But, I would wait until the picture is so full of dots as to be a nuisance. The new chip is under $100.00 for a 720 resolution receiver and under $200.00 for the 1080 receiver. Only a Phillips screwdriver is needed...nothing fancy.