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karmat63
Joined: 19 Dec 2007
Posts: 157
Location: Italy
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| Posted: Wed Dec 03, 2014 4:06 am Post subject: Marquee 9500: Convergence issue |
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Hi to everybody!
It's about a month that my Marquee 9500 has a weird problem:
when I power on the set, the grid is quite perfectly converged; after 3-5 minutes, the upper and lower extremities of the blue grid shift about 1"-2". If I power off and then on the projector, the grid is converged again. In the next 20 minutes I have to cycle off and on the Pj 1 or 2 more times, then it runs fine for hours.
Any idea?
Thanks, Carmine.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Dec 03, 2014 4:26 am Post subject: |
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My guess would be some strange problem in the CLM. Can you post a picture of the test grid, showing the problem?
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Wed Dec 03, 2014 10:50 am Post subject: |
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swap the cables from the vdm and see if problemo follows.
_________________
1 answer always poses multiple questions.
marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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karmat63
Joined: 19 Dec 2007
Posts: 157
Location: Italy
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| Posted: Wed Dec 03, 2014 1:38 pm Post subject: |
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Thanks Curt and Dennis, this evening, I will try to take a pic of the issue and then to swap VDM cables.
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Wed Dec 03, 2014 3:24 pm Post subject: |
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Hello
Look closer at the problem; is the blue grid taller or shorter, or is linearity changing? This could be a vertical board problem. A reflow of the vertical board solder joints may be helpful.
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karmat63
Joined: 19 Dec 2007
Posts: 157
Location: Italy
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| Posted: Wed Dec 03, 2014 11:27 pm Post subject: |
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Looks like I've found the problem.
Not long time ago, I redirected the cables, and paired together the wires from the VDM with those from HDM.
This evening I split the wires again and the convergence is rock stable since.
Will see next days, but for the while everything looks fine.
Thanks!
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Wed Dec 03, 2014 11:57 pm Post subject: |
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| karmat63 wrote: | Looks like I've found the problem.
Not long time ago, I redirected the cables, and paired together the wires from the VDM with those from HDM.
This evening I split the wires again and the convergence is rock stable since.
Will see next days, but for the while everything looks fine.
Thanks! |
Oh yeah!!! When I got my New Longbow's they had all the wires braided. it was very neat but made a mess of the image and everything else. Keep it all loose and who cares about how nice it looks under the hood.
Nashou
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Thu Dec 04, 2014 3:41 am Post subject: |
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| Nashou66 wrote: | | karmat63 wrote: | Looks like I've found the problem.
Not long time ago, I redirected the cables, and paired together the wires from the VDM with those from HDM.
This evening I split the wires again and the convergence is rock stable since.
Will see next days, but for the while everything looks fine.
Thanks! |
Oh yeah!!! When I got my New Longbow's they had all the wires braided. it was very neat but made a mess of the image and everything else. Keep it all loose and who cares about how nice it looks under the hood.
Nashou |
sole reason i wear pants 
_________________
1 answer always poses multiple questions.
marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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karmat63
Joined: 19 Dec 2007
Posts: 157
Location: Italy
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| Posted: Thu Dec 04, 2014 5:32 pm Post subject: |
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| dvh99 wrote: | | Nashou66 wrote: | | karmat63 wrote: | Looks like I've found the problem.
Not long time ago, I redirected the cables, and paired together the wires from the VDM with those from HDM.
This evening I split the wires again and the convergence is rock stable since.
Will see next days, but for the while everything looks fine.
Thanks! |
Oh yeah!!! When I got my New Longbow's they had all the wires braided. it was very neat but made a mess of the image and everything else. Keep it all loose and who cares about how nice it looks under the hood.
Nashou |
sole reason i wear pants |
1 answer always poses multiple questions !!! 
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Thu Dec 04, 2014 8:21 pm Post subject: |
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there's also a tech. bulletin from VDC to never route the Blue HDM wires behind the card and close to the Vertical board, always bring it around the front. Of course this as from the same company that braided all the other tube leads into a pony-tail 
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