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jantje112
Joined: 17 Jul 2006
Posts: 328
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| Posted: Fri Jul 25, 2008 9:20 pm Post subject: |
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The neckboards on the marquee aren't mounted that steady. This because of the design, they didn't use the socket you see on sony's and barco's. Take a good look to see if you're problem is really that bad.
About the 8500. Probably there are parts from another chassis. What's the hour count? Maybe that's an indication of usage.
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Fri Jul 25, 2008 10:22 pm Post subject: |
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The clicking was caused by the focus board, I measure about 8 ohm on the ps of the IC's, so I think at least one of them died.
Without focus board the Marquee turns on normally but there is no picture or light in the tubes and I don't hear them hissing ....
There are no error leds when powered on with the focus board removed.
The hvps is rattling a little bit, maybe the blue tube takes it down ....
André
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jantje112
Joined: 17 Jul 2006
Posts: 328
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| Posted: Fri Jul 25, 2008 10:32 pm Post subject: |
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| speedyandre wrote: | The clicking was caused by the focus board, I measure about 8 ohm on the ps of the IC's, so I think at least one of them died.
Without focus board the Marquee turns on normally but there is no picture or light in the tubes and I don't hear them hissing ....
There are no error leds when powered on with the focus board removed.
The hvps is rattling a little bit, maybe the blue tube takes it down ....
André |
Wihout the blue connected?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Fri Jul 25, 2008 10:47 pm Post subject: |
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The PJ will run with out the focus cables connected to the focus coils, leave it in and disconnect the coils and see what happens on the LVPS, I am not sure which led was lit or what voltage error it might read. Tim, Curt or TSE would know. Also when you say Rattle in the HVPS do you mean while its in and powerd on? or when you take it out and shake it? If its ticking while the power is on then its a bad HVPS and probably other things. But the flashing on the neck boards is strange, the static grounds go to it and they might have been what was flashing, have you removed the Neck boards to inspect them for any burned components or smell anything burnt? I feel liek you have a PJ that was put together with different parts since you said its a Vision 1 and it shows up 8500.
Athanasios
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sat Jul 26, 2008 10:38 am Post subject: |
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Where did this projector come from? I hope you didn't get shafted with a look alike Vision One.
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Sat Jul 26, 2008 11:05 am Post subject: |
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It would help if you could name some 9500lc things that can't be upgraded from a 8500lc.
I'm not familar with Marquee so I couldn't tell about the details.
First thing I want to do today is removing the blue tube to get a better idea about what's going on here 
So far I have a bad focus board and the blue tube.
André
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jantje112
Joined: 17 Jul 2006
Posts: 328
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| Posted: Sat Jul 26, 2008 11:22 am Post subject: |
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I'm not an expert on the marquee. For my knowledge, the 8500 and 9500 are more or less the same in parts. The 8500lc also uses the hd10 and also the boards are the same.
From what i know, the vision one is based on a ultra chassis. So you should check if yours an ultra too. Also check the boards on production date's to see if that's a logic combination with the production of the vision one. And like I said, the hours in use should give you an indication if the chassis is still in it's original state.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sat Jul 26, 2008 12:14 pm Post subject: |
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| jantje112 wrote: | I'm not an expert on the marquee. For my knowledge, the 8500 and 9500 are more or less the same in parts. The 8500lc also uses the hd10 and also the boards are the same.
From what i know, the vision one is based on a ultra chassis. So you should check if yours an ultra too. Also check the boards on production date's to see if that's a logic combination with the production of the vision one. And like I said, the hours in use should give you an indication if the chassis is still in it's original state. |
Some of this is true, the 8500LC and 9500LC are the same except for the tubes/assemblies. Now with the Vision One not all were Ultras. But they all should have the later version Boards, I have many different boards and would be able to tell you when i look at them as I cant remember the part numbers for then off hand. The tell all is the PJ showing 8500 in the menu, its either was Vision 2 or an 8500 and was told by the seller it was a vision One to sell it. To Get at the back plane to change
the board takes at least 3 hours . But that is all relevant what we need to do is Figure out why he had those sparks and Focus board failure is it is actually faulty.
Athanasios
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sat Jul 26, 2008 12:50 pm Post subject: |
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If it is in fact a Vision One, wouldn't the original white rectangular Electrohome sticker on the rear be substituted with a Vidikron Vision One sticker? Just because it has a Vidikron case doesn't make it a Vision One. If it is not a original Vision One, then who knows what's been done to get it where it is. This is why I stay away from Electrohome E-bay sales that claim "all the latest mods". You really have no idea what your getting.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sat Jul 26, 2008 1:00 pm Post subject: |
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| stefuel wrote: | | If it is in fact a Vision One, wouldn't the original white rectangular Electrohome sticker on the rear be substituted with a Vidikron Vision One sticker? Just because it has a Vidikron case doesn't make it a Vision One. If it is not a original Vision One, then who knows what's been done to get it where it is. This is why I stay away from Electrohome E-bay sales that claim "all the latest mods". You really have no idea what your getting. |
Exactly. I ask for pics of each board and close ups or their part numbers. But most parts are interchangable and some Visions were not ultras. But Gov Liquidation PJ you can alway be sure they are stock sets Like the 9500LC I have and I got lucky with the 8500 from Ebay from a production company(Kramer Productions) Mint tubes and super clean Chasis for 470 bucks!
Athanasios
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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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Marquee Modifications and Performance Enhancement
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Sat Jul 26, 2008 1:14 pm Post subject: |
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This crt has been repaired before because of a glycol leakage during transport.
The whole crt has been cleaned up and damaged boards were replaced by boards that Curt had delivered.
Maybe an existing problem was still there and now came up, I don't know.
For now there still is a HS problem, when blue is disconnected completely there still is no light and after 20 seconds I can hear the high voltage 'snapping' without visible sparks.
I'm affraid that the neckboards or worse, the tubes are dead 
On the focus board I think one or more IC's died and caused a short in the PS leads.
I can exchange one IC that I've bought before (if only one is defective).
The problem is that I have no exchange parts so I can't continue and test what's wrong.
André
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sat Jul 26, 2008 1:31 pm Post subject: |
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This isn't the projector from almost a year ago that was delivered with all tubes smashed (all three necks smashed and imploded)? Also you didn't answer the question, what sticker is on the back?
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Nashou66
Joined: 12 Jan 2007
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Location: West Seneca NY
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Sat Jul 26, 2008 2:20 pm Post subject: |
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| Nashou66 wrote: | Andre' you said you hear the HVPS "snap" do you mean Tick Tick Tick sound? if that is the case it might be a bad HVPS Curt says when you hear this its bad, I do not know if he can repair it, but I think he says he can.
Athanasios |
I hear this only when the blue tube is connected so it could be caused by a defective tube.
Without the blue tube connected I get HS problems (snaps) and I can't locate this very well.
This is were I stop testing with the hvps working because of possible damage to other parts.
I don't know where on the back I should find a Vidikron mark or sticker.
The chassis is completely dismantled because of the earlier repair and cleaning up.
All the other exterior parts have no marks or stickers.
André
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David_Web
Joined: 02 May 2007
Posts: 418
Location: Sweden
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| Posted: Sat Jul 26, 2008 3:03 pm Post subject: |
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Are the Aquadag wires connected properly?
Ground wires?
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Sat Jul 26, 2008 3:19 pm Post subject: |
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For those who like horror movies, I've made one of the broken blue tube (save target as)
I can't get the black coil plastic off the tube because of the broken glass in it.
André
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David_Web
Joined: 02 May 2007
Posts: 418
Location: Sweden
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| Posted: Sat Jul 26, 2008 3:40 pm Post subject: |
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The focus coils could have gotten so warm so the neck snapped.
Or maybe the coil exploded and cracked the tube.
Horror movie indeed.
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Sat Jul 26, 2008 4:20 pm Post subject: |
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More horror 
Red tube added 
Why not add the fried green one too
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Last edited by speedyandre on Sat Jul 26, 2008 5:29 pm; edited 1 time in total
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sat Jul 26, 2008 5:09 pm Post subject: |
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What the hell did you do? Three days ago, all three tubes were working. There's no way they could have lit up with a test pattern in that condition. I'd ditch that chassis like a used rubber. Who in their right mind would chance a new set of tubes in it. Where did this freak of nature come from?
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speedyandre
Joined: 18 Dec 2006
Posts: 291
Location: Netherlands
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| Posted: Sat Jul 26, 2008 5:19 pm Post subject: |
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The only thing I can think of is that there was a 35KV leak somewere and that it passed the focus board to distroy the other tubes 
Between the working state and now nothing has been changed, the crt itself has not been moved around.
There is so much damage that I can consider the chassis as lost
André
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