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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Wed Dec 19, 2007 1:04 am Post subject: Marquee HV Restarting |
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So after finally getting my green tube back from VDC to sort out the secondary emissions problems I go to do a full setup and a new problem has shown up. After the projector fully warms up the HV starts "randomly" restarting. Sometimes it goes out and then instantly restores at full voltage, other times it shuts down and can take anywhere from two seconds to a couple minutes before restarting and refocusing. No fault LEDs come on and it seems that if I shut down and then restart the entire projector with the remote, the problem goes away but then comes back in about 15 minutes.
I have tried swapping out the HVPS, the LVPS and the HV splitter but the problem still comes back.
I still plan on swapping out all the boards in the projector but if anyone has any suggestions it would be appreciated.
Is there any way that this could be caused by the green tube?
Chris.
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Joust
Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Wed Dec 19, 2007 1:13 am Post subject: |
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Unplug the green tube and see if it recurs.
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Wed Dec 19, 2007 1:16 am Post subject: |
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I'm trying that right now. The only issue I see with this test is that the problem may not occur if the HV isn't loaded down the the draw from all the tubes.
Chris.
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Joust
Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Wed Dec 19, 2007 1:18 am Post subject: |
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you have other tubes, use one just for loading.
but if you changed the PS's then that should not make a difference.
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Wed Dec 19, 2007 1:22 am Post subject: |
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I don't want to pull the tube before swapping all other parts first. The tubes are harder to swap than all other parts. I also don't have any other 9" tubes, only a set of 8" ones.
Chris.
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Joust
Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Wed Dec 19, 2007 1:24 am Post subject: |
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set an 8inch one on top of the set and plug in the HV and neck board.
oh and don't, under any circumstances, knock it over. 
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Wed Dec 19, 2007 1:27 am Post subject: |
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| Joust wrote: | set an 8inch one on top of the set and plug in the HV and neck board.
oh and don't, under any circumstances, knock it over. |
Can't plug in the neck board with it sitting on top as the ribbon cable that connects to the bottom of the board won't reach.
I'll try not to knock it over, but I may heave it out the window as this POS has never worked properly 
Chris.
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Wed Dec 19, 2007 1:46 am Post subject: |
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I have now see the HV restart with the HV disconnected from the green tube. I have now completly disconnected the green tube including the neck board, hopefully the problem will still be there.
Chris.
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JustGreg
Joined: 07 Mar 2006
Posts: 3098
Location: Kenosha, WI
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| Posted: Wed Dec 19, 2007 2:47 am Post subject: |
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It sounds like what my 8500 was doing until I worked out a method to keep the FCM and HDM boards seated up where they belonged. I'm guessing by your post tho that yours isn't ceiling mounted?
When it happened on mine I got the same symptoms....instant blackout of all tubes....and a few seconds later all three tubes would slowly come back to full output. rinse and repeat. I had no error lights and no relay clicks. With all the talk of spot burn I wasn't sure what I should do either but I just turned it off normally with no damage.
Since correcting the BS card containment design, specifically the cage covers, it hasn't happened since....that would be about 3 months now.
Just a thought. Hopefully it isn't something more serious.
Greg
_________________
Greg
"Is it ignorance or apathy? Hey, I don't know and I don't care!" --Jimmy Buffett
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Wed Dec 19, 2007 3:02 am Post subject: |
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Mine isn't ceiling mounted.
So far 1 hour 15 minutes with no HV restart with the green tube completely disconnected. I'll try again tomorrow and also move the neck board from the green to one of the other tubes to eliminate that as the problem.
Chris.
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jujosaar
Joined: 12 Nov 2007
Posts: 2
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| Posted: Fri Dec 21, 2007 4:13 am Post subject: |
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My PJ "restarts" when the screen is completely grey/white, it is warm and been running for a while and the contrast is way up.
I tracked the fault down to a single neck board and changed it but the replacement board has some nasty blurring/streaking so I'm back with the original.
I'd say it's the neck board (since you've tested everything else). Try to drive the PJ with one color only, one color at a time and bringing the contrast up to the max with the brightness. This way you wouldn't have to swap the neck boards.
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Sun Dec 23, 2007 2:00 am Post subject: |
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Problem found. The VIM is causing the HV restarts.
I replaced the VIM with my backup unit and I've run the projector for 30 hours with no restarts. I then put the "broken" VIM back in and the problem came back.
Chris.
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Joust
Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Sun Dec 23, 2007 2:02 am Post subject: |
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That would be your MP modded 03 VIM
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Sun Dec 23, 2007 3:57 am Post subject: |
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| Joust wrote: | | That would be your MP modded 03 VIM |
That would be correct
I'm going to ship it to Mike for repair, hopefully it won't take to long to get fixed.
Chris.
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kung fu hustler
Joined: 14 Mar 2006
Posts: 15
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| Posted: Mon Dec 24, 2007 4:22 am Post subject: |
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 I am never going to modify any of my 9500's.Reliability is a big priority for me.Most people are not nearly as handy as Chris.
_________________
Ask for the guy with snowhite hair,he knows for sure!
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Gino
Joined: 22 Apr 2006
Posts: 1363
Location: Trinity Beach, AUSTRALIA
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| Posted: Thu Dec 27, 2007 6:18 am Post subject: |
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It's odd that this problem started after you swapped out the green tube. How long had the modded 03 been working prior?
I'm worried as I'll be putting in my LUG's soon and would hate for this sort of problem to occur and wait again for repairs.
_________________
( B ) ( G ) ( R ) Blendzilla Down Under ( R ) ( G ) ( B ) - Tubes of Fury
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Thu Dec 27, 2007 12:35 pm Post subject: |
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The VIM was never tested properly before the LUGs were installed, I highly doubt that the installation of the LUGs had anything to do with the VIM failure.
The VIM was modded in July of this year but the projector was not fully assembled with the LUGs until October and it was only used in very small bursts until the green tube was fixed by VDC in late November.
Chris.
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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 27, 2007 1:26 pm Post subject: |
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| nuttall_chris wrote: | The VIM was never tested properly before the LUGs were installed, I highly doubt that the installation of the LUGs had anything to do with the VIM failure.
The VIM was modded in July of this year but the projector was not fully assembled with the LUGs until October and it was only used in very small bursts until the green tube was fixed by VDC in late November.
Chris. |
Chris,
that VIM was one of my personal VIM's, and it had a many hours of use on it. It was also in use by Paul before he sold the projector to you. not sure what else was going on with the projector he sold you.
And yes, a bad tube can damage both VIM and neck boards. It happened to me earlier this year right after the first blend meet. And that's when I went to my 02 VIM for awhile until I was able to get my 03 working again, because I had two 03 VIM's but sold one to Paul. I've talked about this a lot on AVS, that I had "BLEW" my 03 VIM when JB and me were swapping out neck boards.
And you can also ask William the owner of the two Marquees at the meet, how many times we replaced a board or two in his projector. He had a blue tube that had the same problem.
Again, that VIM was not modified in July. It's at least a year old, and was simply upgraded to what I was doing then. Paul got it from long before then, and he used it well. nonetheless, the protect circuits and functions on the VIM IS NOT a part of the section of he VIM that I mod.
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nuttall_chris
Joined: 08 Mar 2006
Posts: 832
Location: Ottawa, Ontario, Canada
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| Posted: Thu Dec 27, 2007 2:20 pm Post subject: |
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| mp20748 wrote: | | nuttall_chris wrote: | The VIM was never tested properly before the LUGs were installed, I highly doubt that the installation of the LUGs had anything to do with the VIM failure.
The VIM was modded in July of this year but the projector was not fully assembled with the LUGs until October and it was only used in very small bursts until the green tube was fixed by VDC in late November.
Chris. |
Chris,
that VIM was one of my personal VIM's, and it had a many hours of use on it. It was also in use by Paul before he sold the projector to you. not sure what else was going on with the projector he sold you.
And yes, a bad tube can damage both VIM and neck boards. It happened to me earlier this year right after the first blend meet. And that's when I went to my 02 VIM for awhile until I was able to get my 03 working again, because I had two 03 VIM's but sold one to Paul. I've talked about this a lot on AVS, that I had "BLEW" my 03 VIM when JB and me were swapping out neck boards.
And you can also ask William the owner of the two Marquees at the meet, how many times we replaced a board or two in his projector. He had a blue tube that had the same problem.
Again, that VIM was not modified in July. It's at least a year old, and was simply upgraded to what I was doing then. Paul got it from long before then, and he used it well. nonetheless, the protect circuits and functions on the VIM IS NOT a part of the section of he VIM that I mod. |
I guess what I was trying to say is that the VIM was not tested in the projector I bought from Paul.
The projector was a mess when I got it from Paul. The LVPS and HVPS were DOA and the vertical board was not working. The neck boards (also modded by you) had never been installed on the LUGs and needed some minor mechanical mods to fit on the tube, the LUGs had not been installed and the blue tube had no glycol in the LC chamber. The green tube had the problem with secondary emmisions and the Vidikron case that it came with was for a Vision 2 not a Vision 1 as it was supposed to be, so it did not fit over the lenses on the front of the case.
Paul has been very good about covering the costs of repair but has lately become unresponsive to my emails about the problems I'm having.
This projector was purchased from Paul by my insurance company as a replacement for my 9500 that got destroyed ( https://www.curtpalme.com/forum_archived/viewtopic.php@t=5935.html ) and they paid him top dollar for it. He guaranteed that the projector was working perfectly. I currently have well over 100 hours into trouble shooting problems that this projector has had since purchase.
Paul had clearly not run this projector before shipping it to me
Chris.
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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 27, 2007 2:57 pm Post subject: |
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Chris,
I was not aware of these things. I knew of a board or two not working, but not to this extent.
Anyway, I'm not good at charging for things that may be out of warranty, so I've just been repairing what failed.
In your case, I'll take over the warranty on your VIM, neck boards, LVPS, VDM, HDM, and any repairable section of your HVPS. Did I miss a board or two??, If so, just consider that 9500 you purchased from Paul under warranty (not CRT's, CLM and case parts) by me. And so that you'll know. I only did a few upgrades to the LVPS, HDM, HVPS and mods to the neck boards and VIM.
So keep your head up, you'll only have to worry about shipping for the next 12 months if one or more of the items listed fails.
mike
Last edited by mp20748 on Thu Dec 27, 2007 3:16 pm; edited 1 time in total
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