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mr_ro_co
Joined: 08 May 2006
Posts: 1643
Location: Santa Fe NM
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| Posted: Thu Dec 20, 2012 4:21 pm Post subject: |
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| stridsvognen wrote: | | jbmeyer13 wrote: | The other problem with the faint line thread is that it went off on a tangent; remote, capacitors, etc.. It sounded like Mike Parker eliminated this issue by creating a switch that shut off the internal generator but then he started trying to use the remote to control this and there was no clear answer as to the end result.
Nash- I'm looking for the clamps.. |
If i remember right it was never solved, and never possible to remove the signal generator without making other issues.. |
The switch that turned off the OSD didn't solve it? Kind of clunky as a manual solution but it seemed to have significant benefit, not only eliminating the line but reducing noise as well.
Steve
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stridsvognen
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| Posted: Thu Dec 20, 2012 5:15 pm Post subject: |
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| mr_ro_co wrote: | | stridsvognen wrote: | | jbmeyer13 wrote: | The other problem with the faint line thread is that it went off on a tangent; remote, capacitors, etc.. It sounded like Mike Parker eliminated this issue by creating a switch that shut off the internal generator but then he started trying to use the remote to control this and there was no clear answer as to the end result.
Nash- I'm looking for the clamps.. |
If i remember right it was never solved, and never possible to remove the signal generator without making other issues.. |
The switch that turned off the OSD didn't solve it? Kind of clunky as a manual solution but it seemed to have significant benefit, not only eliminating the line but reducing noise as well.
Steve |
I think you need to ask Mike Parker what the result was.. I remember removing some resistors on the CLM removing the signal from the generator.. But ended up with very bright borders if i remember right.. Like the generator actually generate the black..
And like there was never posted a solution, i think it was just to complex to handel like that. hope i'm wrong.
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Thu Dec 20, 2012 5:21 pm Post subject: |
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I put ferrite snap choke cores on the cables for the Astig and R/B Vim and there is no change regarding the line. MP is going to start working on this again in a couple of weeks.
Dennis (dvh99)- if you are following this did you try Mike's method with the switch for U106? http://www.curtpalme.com/forum/viewtopic.php?p=342722#342722
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Projector: Modded 9501LC ULtra- MP VIM, Vold VNB, ETECH LVPS, Silver VIM Cables, HD10F's & a V1 case!
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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 Oct 19, 2013 6:13 pm Post subject: |
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We're getting back to this as soon as I get my test-bed back up and running.
I'm going after this line, because I'll be going after the last major source of noise that gets into the video chain.
My main reason for going after that noise has less to do with the line problem, but more to do with all the other problems that exist because of the OSD circuit on the CLM being on and in the video chain at all times, even when text is not selected to be displayed.
This noise is very high frequency crap, that does not show as lines or images, but do show up as layers in the projected video image like a list or layers of very subtle light or illumination.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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thewolfman
Joined: 28 Mar 2011
Posts: 1311
Location: Sweden
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| Posted: Sat Oct 19, 2013 10:08 pm Post subject: |
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I'm sorry Nash, but I can't see the line on yours (on the far left side on the screen) if we are discussing the same issue that is. If you happen to have From Hell then watch it from the very beginning starting at 31 to 41 seconds. It's a dead give away. A faint white line on the left side.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Sun Oct 20, 2013 4:03 am Post subject: |
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i don't see how you are missing the line i can see it clear as day(luckly mine doesn't show this but i do get the swerly lines when no signal
going to get the frettes soon for the astig as i didn't get the noise till i upgraded to the new tubes grr
ps nash i was wondering if swapping the belly fan access panel for say screen wire would bring the noise level down any??
i ask as i seen three holes for the fans yet only one air intake(i just got through inspecting a chassis i am selling to someone)
still going to do your fan mod soon as i want my set to be as quiet as can be 
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crt king of black
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thewolfman
Joined: 28 Mar 2011
Posts: 1311
Location: Sweden
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| Posted: Sun Oct 20, 2013 8:53 pm Post subject: |
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All I see is two strange black lines next to the camera stand. If it's that, sure I see it to.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sun Oct 20, 2013 9:02 pm Post subject: |
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What that pic is showing is that my one PJ, the left one, it's menu does not have the black background to see the text on, it is invisible or clear. the right PJ has the Black background text box.
Not sure what causes this anomaly but I bet it might also eliminate the faint line on the right side of the screen. And the faint line is not at the edge, its about 2/3 from the left side .
Athanasios
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thewolfman
Joined: 28 Mar 2011
Posts: 1311
Location: Sweden
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| Posted: Sun Oct 20, 2013 9:11 pm Post subject: |
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| Nashou66 wrote: | What that pic is showing is that my one PJ, the left one, it's menu does not have the black background to see the text on, it is invisible or clear. the right PJ has the Black background text box.
Not sure what causes this anomaly but I bet it might also eliminate the faint line on the right side of the screen. And the faint line is not at the edge, its about 2/3 from the left side .
Athanasios |
I'm so blind at times. See it now.
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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 Oct 20, 2013 11:15 pm Post subject: |
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| Nashou66 wrote: | if we can figure out why my CLM does this ( Below) and reproduce it then we solved the faint line issue and the overlay that wolfman has. I tried this CLM on an unmoded Vim with out the faint line and its gone. But with the other CLM of the right it shows up. hmmmm
nashou |
Is this problem consistent wit the CLM, or have you tried swapping the CLM's to confirm that the problem is on that particular CLM?
There are tree service menu's two below the main. I'm wondering if the settings are the same in both sub menus.
I've been working on this problem, and can say I'm getting closer to understanding it, but since my test-bed is still down, there are somethings I can't check out (scope). So It would also help me to better understand what is going on here, because whatever problem that is, the image is clearly elevated on the left screen. There seems to be more going on than the background in the OSD not being there. It also looks like your gain on the left screen is also elevated.
The red crt on my test-bed leaked half of the fluid out. This must have happened while it was not being used the past year or so and setting in my shop. I put it back in action about a month ago, saw the leak, but since it was not on the mother board, I ignored it. Since removed the rest of the glycol from the red CRT, to sometime later hear a spark and finding a blown fuse on the HVPS. Turns out the HVPS is dead, and putting another one in - still not working. I then replaced the top mother board, to later replace the backplane board - and still nothing. I'm wondering if the glycol got on the HVPS connector and noy only caused the HVPS to fail, but also is keeping the projector from not working.
I need to get my test-bed working again..
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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: Wed Oct 23, 2013 1:01 pm Post subject: |
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I have to say that I have found the fix, or should I have said found another fix for that dreaded line in the image.
I won't say much about it or how I was able to find out the where and whats, but in my ongoing pursuit to lower the noise floor in the Marquee and improve on the low end performance by removing those layers from the image, I found a nugget of gold at the end of the rainbow..
It's going to take me few or more weeks to wrap this up. And when I get it ready, I'll be looking for a few testers to send out a few of my Vim's to for evaluation.
I'll have to do this while at the same time wrap up a project I've been working on, so bare with me.
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed Oct 23, 2013 1:54 pm Post subject: |
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| mp20748 wrote: | | And when I get it ready, I'll be looking for a few testers to send out a few of my Vim's to for evaluation. |
I would be glad of taking part in this. I have a testing machine, lots of measurement tools and a little bit of technical experience...
Regards,
barclay66
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Wed Oct 23, 2013 2:22 pm Post subject: |
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| mp20748 wrote: | I have to say that I have found the fix, or should I have said found another fix for that dreaded line in the image.
I won't say much about it or how I was able to find out the where and whats, but in my ongoing pursuit to lower the noise floor in the Marquee and improve on the low end performance by removing those layers from the image, I found a nugget of gold at the end of the rainbow..
It's going to take me few or more weeks to wrap this up. And when I get it ready, I'll be looking for a few testers to send out a few of my Vim's to for evaluation.
I'll have to do this while at the same time wrap up a project I've been working on, so bare with me. |
Sounds great Mike; looking forward to the results of your efforts.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Wed Oct 23, 2013 3:50 pm Post subject: |
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| mp20748 wrote: | I have to say that I have found the fix, or should I have said found another fix for that dreaded line in the image.
I won't say much about it or how I was able to find out the where and whats, but in my ongoing pursuit to lower the noise floor in the Marquee and improve on the low end performance by removing those layers from the image, I found a nugget of gold at the end of the rainbow..
It's going to take me few or more weeks to wrap this up. And when I get it ready, I'll be looking for a few testers to send out a few of my Vim's to for evaluation.
I'll have to do this while at the same time wrap up a project I've been working on, so bare with me. |
Count me in on the testing 
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crt king of black
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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 Oct 29, 2013 2:51 pm Post subject: |
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We're now up to 234mhz bandwidth using an 02 VIM..
The shot is not really showing it, but the pattern is dead on it, and it's razor sharp.
Shot directly into the green lens - 1920X1440 /60hz 234mhz pixel clock
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stridsvognen
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| Posted: Tue Oct 29, 2013 3:19 pm Post subject: |
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Hey Mike...
Its not nice of you teasing us like that.. 
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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 Oct 29, 2013 3:46 pm Post subject: |
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| stridsvognen wrote: | Hey Mike...
Its not nice of you teasing us like that.. |
The past week, I've been trying to get my test-bed 8500LC back up and running, while at the same time, having to use my ceiling mounted 9500LC to finish my work .
I'm going to need to replace the 8500LC chassis, because I've replaced both mother board and backplane board and still the set won't come back on. It was a glycol leak from the red CRT that caused the problem.
Interesting how i'm able to actually 100% resolve that resolution, and and do it with LCP CRT's. The additional bandwidth is way more than what I'll ever need, but what I've noticed about these boards is that the additional bandwidth means also a Super Fast video chain. And that speed plays out on the screen at the lower 1920X1080P 60/72hz has being VERY sharp.
Justin will stop around on the weekend. He'll be the first other than myself to witness this. I manage to make this extra bandwidth thing happen this morning, so I'd like to look at it a little more over the weekend.
The ANSI has to be off the chain on this..
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stridsvognen
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| Posted: Tue Oct 29, 2013 4:10 pm Post subject: |
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There is no such thing as to high bandwidth..
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