92" Mitsubishi DLP @ CES!!! - Page 65 - AVS Forum
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post #1921 of 1927 Old 02-15-2014, 02:50 PM
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Quote:
Originally Posted by colour View Post

Look inside the access holes on the sides and see if you see something on the screen or the lens.

Great idea...... I just checked it out and nothing really stood out. However the lens ( I'm guessing that's what it is) while the TV was on seemed a little dusty or blurry. It looked good when the TV was off at least from a distance. Any suggestions on how to get in there and clean it. Or what else it might be?


Here are some cell phone pics of the inside:





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Originally Posted by taichi4 View Post

The DMD is the Digital Micromirror Device.

Thanks I did know what it was just not the correct name.

So you think the shadows / lines are on the DMD?
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post #1922 of 1927 Old 02-17-2014, 04:17 AM
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Quote:
Originally Posted by Damon D View Post

Quote:
Originally Posted by colour View Post

Look inside the access holes on the sides and see if you see something on the screen or the lens.

Great idea...... I just checked it out and nothing really stood out. However the lens ( I'm guessing that's what it is) while the TV was on seemed a little dusty or blurry. It looked good when the TV was off at least from a distance. Any suggestions on how to get in there and clean it. Or what else it might be?


Here are some cell phone pics of the inside:





Quote:
Originally Posted by taichi4 View Post

The DMD is the Digital Micromirror Device.

Thanks I did know what it was just not the correct name.

So you think the shadows / lines are on the DMD?

It's more likely to be somewhere in the optical path such as the lens or one of the mirrors

"The wise understand by themselves; fools follow the reports of others"-Tibetan Proverb
 
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post #1923 of 1927 Old 02-17-2014, 04:55 AM
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Originally Posted by Augerhandle View Post

It's more likely to be somewhere in the optical path such as the lens or one of the mirrors

I agree. Any suggestions or links you can point me too on where to start?

I assume there will be a fair amount of disassembly.
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post #1924 of 1927 Old 02-17-2014, 01:00 PM
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Quote:
Originally Posted by Damon D View Post

Quote:
Originally Posted by Augerhandle View Post

It's more likely to be somewhere in the optical path such as the lens or one of the mirrors

I agree. Any suggestions or links you can point me too on where to start?

I assume there will be a fair amount of disassembly.
I would start with front screen removal to get at the mirror and lens. Be careful because they can be damaged very easily when cleaning them. Do a search in these forums for mirror cleaning and you will find what you're looking for.

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post #1925 of 1927 Old 02-21-2014, 06:57 AM
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Originally Posted by Augerhandle View Post

I would start with front screen removal to get at the mirror and lens. Be careful because they can be damaged very easily when cleaning them. Do a search in these forums for mirror cleaning and you will find what you're looking for.

Awesome thanks I'll do it.
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post #1926 of 1927 Old 03-19-2014, 01:51 AM
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Any suggestions on how to get the screen off. Preferably a video showing exactly how to do it?

 

Thanks

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post #1927 of 1927 Old 03-20-2014, 01:15 AM
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Update:

I got to the light engine and wiggled it around while video recording the image to see if the marks moved with the light engine or stayed on the screen. They stayed on the screen so unless I'm missing something they must be on the screen or the large mirror. 

 

So next I need to get the screen off. I searched for  a service manual and some instructions on removing the screen but have not found anything that is close to this model or brand. 

Any suggestions or ideas? 

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