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macgyver655
Joined: 22 Aug 2007 Posts: 6950
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Link Posted: Thu May 27, 2010 4:13 pm Post subject: |
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| drice1234 wrote: | | To the same address as the receiver? I would have thought the filter would have to be after the LCD panel which I assume is part of the assembly with the 3 ribbon cables coming out of it. |
Yeah, same address. The reason I'm not giving more info on finding and removing the possible bad parts is because if the wrong screw or bracket is loosened or removed then the entire alignment may be thrown off and may not be realignable without special equipment. Plus if the exact part is not available then one from something else may be able to be used but may have to be retrofitted and may require special attention to function properly.
Its not always about just finding the bad part.
_________________ macgyver566@gmail.com
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drice1234
Joined: 07 Oct 2006 Posts: 1310 Location: Allen, Texas
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Link Posted: Thu May 27, 2010 4:25 pm Post subject: |
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OK, I'll send the one I did not take apart
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cmjohnson
Joined: 03 Apr 2006 Posts: 1677
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Link Posted: Fri May 28, 2010 6:56 pm Post subject: |
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Green dichroics usually don't fade. I've never yet seen either a red or green dichroic element that had faded much if at all.
CJ
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ecrabb
Joined: 13 Mar 2006 Posts: 12468 Location: Iowa
TV/Projector: JVC RS45
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Link Posted: Fri May 28, 2010 10:06 pm Post subject: |
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Interesting, CJ.... So, what would be responsible for the green predominance? Seems like green predominance would have to come from either too much green, or not enough red and blue, neither of which seem like a likely scenario given your experience.
Green LCD stuck wide open AND blue filter fade?
SC
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cmjohnson
Joined: 03 Apr 2006 Posts: 1677
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Link Posted: Sat May 29, 2010 9:44 pm Post subject: |
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Well, if there's no blue content then green will predominate. Red is usually a minor component in a typical picture.
It's kind of hard to diagnose this one without some good photos of various optical components in operation when I know exactly
what the input image is supposed to look like.
CJ
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ecrabb
Joined: 13 Mar 2006 Posts: 12468 Location: Iowa
TV/Projector: JVC RS45
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Link Posted: Thu Aug 26, 2010 5:16 pm Post subject: |
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Hey, Dan - Did you ever fix one or both of these machines? I'm just curious where the problem ended up being.
SC
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projtech
Joined: 26 May 2011 Posts: 6 Location: United States
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Link Posted: Thu May 26, 2011 2:39 pm Post subject: |
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I doubt he fixed them.
His blue panel is shot and his green optics, in and out polarizers, are shot.
Wish I would have found this forum sooner. I could save you guys some disassembly! :p
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