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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Sat Aug 08, 2009 11:08 pm Post subject: |
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O.K. So I guess I can stop looking or trying anything, as MELTED  is never good.
Right? 
_________________
Firefly rules. Can't stop the signal.
http://www.hulu.com/firefly
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Sat Aug 08, 2009 11:40 pm Post subject: |
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I just got off the phone with Mike Parker. He's fairly certain as in damn near zero it's not the VIM. The melted shrink wrap was from him during a fuse replacement at a prior time for the previous owner.
As I posted earlier about the test grids and full RGB colors when cycled through by using Color 1, color 2, color 3,
its most likely the Moome card.
So I am going to see Mike on Wednesday with the Moome card and VIM for diagnosis.
_________________
Firefly rules. Can't stop the signal.
http://www.hulu.com/firefly
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sun Aug 09, 2009 5:39 pm Post subject: |
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| dturco wrote: | | I'm going to take a wild guess here and say the VIM is the problem. I went to swap the cables and when pulling the board forward to get access I noticed 4 black [caps?] wrapped by some blue shrink wrap near where the Moome card plugs in at has melted the shrink wrap. |
dam, that sure is ugly but I've had MP boards in my Marquee for many years now and never had a single problem with them. That is also not where the Moome card comes in, I believe it's where the DC power from the projector chassis comes in and powers the VIM. What he's glued over is his filtering and de-coupling.
Trouble is Dave that when you don't have spare parts it makes trouble-shooting a marquee pretty difficult. I've had machines here that just wanted to run right away and never gave any trouble. There's been a few though that were just a nightmare to really iron out. Without a cache of spare boards it would have been nearly impossible.
I doubt it's the moome card. Based on your description it sounds like a bad video neck-board on blue tube. A Bad VNB will keep the high voltage down, it's a safety feature to prevent damaging a tube. You should be able to slide the blue VNB completely off, unplug it from the chassis, and run the machine. If it runs fine with just G + R then it's a bad VNB on Blue
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Sun Aug 09, 2009 7:08 pm Post subject: |
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Dragan
I have pulled the moome card out and put back the RGB board in it's place. The blue banding is gone, and a noise I did not post about near the blue neck board has gone away too.
Could this also explain the G-2 having to be so high too? Voltage being kept low by the safety feature?
I am going to Mike's on wed. I will take the VIM card, the Moome card and all Neckboards with me for testing.
Also I am waiting for a VGA to BNC cable to make swapping in a computer for source testing.
I am also looking for a parts machine as we speak. I believe a 8500 will work for most of the parts?
EDIT: also the Neckboards were swaped around when I did the bellows. I made sure to move the board from the blue because of the G-2 wire issue from way back when to see if any problems went somewhere else. I have had no problems with green or red so I guess we're back to the Moome card?
Oh and your right about the location of the melting, my orientation was off when looking at it out of the machine.
Thanks for helping 
_________________
Firefly rules. Can't stop the signal.
http://www.hulu.com/firefly
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sun Aug 09, 2009 9:59 pm Post subject: |
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well that does seem to point to the moome card as a possible culprit. I don't know enough about that card to say for sure but if the video signal it's outputting to the Blue channel is too hot it could certainly mimic a run-away G2 voltage. It could also be that section of the VIM, as I would expect the RGB expansion card draws less voltage than the Moome card with it's processor chip and D-A conversion?
It's good your so close to MP, he should be able to nail it down pretty quickly.
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Wed Aug 12, 2009 7:51 pm Post subject: |
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Not the Moome card or the Vim, Damn mini coax.
Oh well, I saw Mike's super Moome card in action. We swapped my Moome card into his 9500 to check it, what a difference. The older card I have looks awful when compared. HUGE is an understatement.
I will be one of the first 10 to get this it is unbelievably better.
All of my complaining about the picture on GOZER is related to the older version Moome. Period. It is not my setup or GOZER, it is the softness in the older card.
I want this new card bad. 
And oh yeah damn mini coax.   
Mike hooked me up with a mod to my old Moome card while I was there and gave me the mini coax I needed too.
Thank you MIKE
_________________
Firefly rules. Can't stop the signal.
http://www.hulu.com/firefly
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