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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Thu Dec 10, 2009 11:43 am Post subject: |
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| antorsae wrote: | | Mike - You have a lot of ringing on the left handside... probably due to porch settings. Is there any workaround for those? |
That ringing I'm really glad it's there, because it presents my next challenge.
I've seen it a many times, but never to that degree. So it's perfect for me to look at it and what's really causing it.
On the 02 VIM that's in there, I've changed how the vertical blanking works into the video chain. I found out during when working with that circuit, that I can make those lines worse with that circuit. I know for the most part, it's ringing from the horizontal sweep. But there's also something else to look at.
I'm going to put a folk in that one. It's the ONLY distortion on raster..
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Sat Dec 12, 2009 1:54 am Post subject: |
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Woo Hoo... Check out what I've done to the focus circuit in my Marquee.
And before these changes, I thought I needed better lenses..
1080P into my CRT - 100% UNTOUCHED!
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Sat Dec 12, 2009 4:16 am Post subject: |
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Still totally not sharpened 1080P..
 totally
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winduptoy
Joined: 25 Nov 2006
Posts: 187
Location: Lunenburg, Nova Scotia
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| Posted: Sat Dec 12, 2009 12:27 pm Post subject: |
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That is quite a difference Mike! Geometry is still a little squashed though.
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Sat Dec 12, 2009 1:01 pm Post subject: |
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| winduptoy wrote: | | That is quite a difference Mike! Geometry is still a little squashed though. |
That's probably true. Since I'm looking to replace the screen, I'm not likely to do much with the geometry until after that happens. I will tighten up on the focus a little since I've made the recent changes.
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Sun Dec 13, 2009 11:38 am Post subject: |
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1080P - NOT Sharpened
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Tue Dec 15, 2009 1:16 am Post subject: |
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Finally got around to tweaking the focus. Also changed to my other camera...
100% untouched 1080P
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Tue Dec 15, 2009 1:46 am Post subject: |
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Is that film grain I see? 
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CRT.
HD done right!
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Thu Dec 17, 2009 12:50 am Post subject: |
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Untouched 1080P into my lowly CRT
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Sat Dec 19, 2009 2:31 am Post subject: |
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More Untouched 1080P...
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
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| Posted: Sat Dec 19, 2009 3:29 am Post subject: |
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| Nashou66 wrote: | Nice Mike Keeping up with the German Nazi theme!!!
Now lets work on the next problem of the marquee, the damn ringing on the left side!!!!! 
Athanasios |
Do they all do that? I'm afraid that would drive me nuts. I have a tad bit of 4:3 burn in bright scenes...Makes me crazy.
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Doing HD since the last century!
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
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| Posted: Sat Dec 19, 2009 4:35 am Post subject: |
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Ahh...Ok...a NEC gets very squirrely with bad timings too…The main reason I use an HTPC.
Mike
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Sat Dec 19, 2009 1:43 pm Post subject: |
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| Nashou66 wrote: | Nice Mike Keeping up with the German Nazi theme!!!
Now lets work on the next problem of the marquee, the damn ringing on the left side!!!!!
Athanasios |
Yep, and I think I'll do that today. This is the worse I've seen this ringing on any Marquee that had 07 or 08 version HDM's. The earlier version HDM's found in some 8000/9000 version Marquees had real problems with this.
It ws not obvious on my 8500 Ultra. It was also a direct hookup without a processor.
I'm glad it's there to that degree, It'll give me a good opportunity to look at it and see what's causing it, other than what should be normal.
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menec
Joined: 17 Dec 2008
Posts: 74
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| Posted: Sat Dec 19, 2009 2:03 pm Post subject: |
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| mp20748 wrote: |
Yep, and I think I'll do that today. This is the worse I've seen this ringing on any Marquee that had 07 or 08 version HDM's. The earlier version HDM's found in some 8000/9000 version Marquees had real problems with this.
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I really do hope you find a solution for this. This problem is bugging me ever since I switched to the Marquee. I always thought this was somehow related to my video chain, so I'm kind of happy that other guys are seeing this as well
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sat Dec 19, 2009 2:48 pm Post subject: |
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| menec wrote: | | mp20748 wrote: |
Yep, and I think I'll do that today. This is the worse I've seen this ringing on any Marquee that had 07 or 08 version HDM's. The earlier version HDM's found in some 8000/9000 version Marquees had real problems with this.
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I really do hope you find a solution for this. This problem is bugging me ever since I switched to the Marquee. I always thought this was somehow related to my video chain, so I'm kind of happy that other guys are seeing this as well |
Menec one way to fix it with a VP is to make the back porch settings much larger and increase the over all total pixels to match the increase you added to the back porch. Also increase the sync timings and make sure they are over or at least very close to 1us or you'll get squiggly waves on vertical lines every few seconds. One other thing I have heard but not tried is to remove the chip carriers on the HDM daughter board and solder those re-moveable chip directly to the Board.
there are a few cap changes i plan to try on the HDM as well, increasing the value of C50 to a much larger value might also help out. I forgot what the value was but is like 5 times as much i believe. like 1200uf or so.
Athanasios
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Marquee Modifications and Performance Enhancement
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menec
Joined: 17 Dec 2008
Posts: 74
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| Posted: Sat Dec 19, 2009 3:08 pm Post subject: |
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Unfortunately I don't have a VP. I directly connected my BluRay player through the HDFury1. I kind of got used to the fact that those lines are present on the screen, but if there is a working fix by modifying the HDM I would be happy to test it.
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