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Getting rid of raster ringing on Marquees
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gjaky




Joined: 05 Jun 2010
Posts: 2789
Location: Budapest, Hungary


PostLink    Posted: Sat Nov 18, 2017 10:45 am    Post subject: Reply with quote


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I think Wolfspeed merged with Cree, as when I bought my FETs they were marketed already as Wolfspeed, but the package engraving still showed Cree.
The xls file I shared here earlier contains Scott's calculations Wink

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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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dvh99




Joined: 25 Dec 2009
Posts: 2158
Location: nederland


PostLink    Posted: Tue Nov 21, 2017 1:06 am    Post subject: Reply with quote

still fiddling gjaky?
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marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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gjaky




Joined: 05 Jun 2010
Posts: 2789
Location: Budapest, Hungary


PostLink    Posted: Tue Nov 21, 2017 10:57 am    Post subject: Reply with quote

dvh99 wrote:
still fiddling gjaky?


If my time lets me, yes. I guess I'm little behind "state of the art" Smile

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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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jbmeyer13




Joined: 03 Dec 2010
Posts: 1135



PostLink    Posted: Wed Nov 22, 2017 3:53 pm    Post subject: Reply with quote

dvh99 wrote:
scott mentioned retrace timins so i put the caps back.
there is a formula for calculating retrace timings on page 39 or 40 from memory from the same scott aka tse.

the cree fets have been replaced by wolfspeed fets on the farnell site at much lower cost.


You've been on quite the sabbatical Dennis. You still running your Marquee?

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dvh99




Joined: 25 Dec 2009
Posts: 2158
Location: nederland


PostLink    Posted: Thu Nov 23, 2017 1:05 am    Post subject: Reply with quote

yep but instead of putting the soldering iron on its movies nowadays though i prefer the soldering iron Wink
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marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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