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RaWsHaRk
Joined: 01 May 2009
Posts: 131
Location: Finland
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| Posted: Tue Jun 25, 2013 8:59 pm Post subject: |
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| the big E wrote: | | barclay66 wrote: | | the big E wrote: | | Or a service manual |
Hi,
There is none. At least it's not publicly available. The LVPS and HVPS came from third party suppliers and weren't developed by Ehome/Christie/VDC. They only were built according to their specs. Therefore You would be needing the test rig, the second unit for reference and an extensive knowledge about switch-mode supplies.
Sorry for not having better news for You...
Regards,
barclay666 |
My Ecp is the same way(having to replace the high voltage power supply soon due to a leak in the power supply)
I noticed there was no service manual on curts site either so if he don't have one then they didn't want many people to work on them(which is a dumb move on they're part) |
opposite of dumb. if i was making complex machinery that cost 20 000 or more new, i would not want any diy guy to start repairing them; for their sake and for the moneys sake. i would sell the parts at a premium (customers like nasa or boieng dont complain about expensive parts) and i would not want the liability if someone got hurt trying to repair something but didnt know what theyre doing.
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Electrohome Marquee 7500.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Tue Jun 25, 2013 9:03 pm Post subject: |
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| RaWsHaRk wrote: | | the big E wrote: | | barclay66 wrote: | | the big E wrote: | | Or a service manual |
Hi,
There is none. At least it's not publicly available. The LVPS and HVPS came from third party suppliers and weren't developed by Ehome/Christie/VDC. They only were built according to their specs. Therefore You would be needing the test rig, the second unit for reference and an extensive knowledge about switch-mode supplies.
Sorry for not having better news for You...
Regards,
barclay666 |
My Ecp is the same way(having to replace the high voltage power supply soon due to a leak in the power supply)
I noticed there was no service manual on curts site either so if he don't have one then they didn't want many people to work on them(which is a dumb move on they're part) |
opposite of dumb. if i was making complex machinery that cost 20 000 or more new, i would not want any diy guy to start repairing them; for their sake and for the moneys sake. i would sell the parts at a premium (customers like nasa or boieng dont complain about expensive parts) and i would not want the liability if someone got hurt trying to repair something but didnt know what theyre doing. |
I wasn't referring to cost of parts(consumer tvs was the same way for many brands(and still is) you are correct about not wanting just anybody working on them but what about the service guys who work for them so they had to release something about the sets somewhere for the service techs
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crt king of black
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Tue Jun 25, 2013 11:14 pm Post subject: |
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Guys
Electrohome built their projectors around board swapping for diagnosis and repair. They never provided schematics for power supplies.
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Tue Jun 25, 2013 11:37 pm Post subject: |
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getting new fuses today to try if i get nothing from it i guess i'll be investing in a LVPS but its going to have to wait bills piling up 
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Wed Jun 26, 2013 5:06 am Post subject: |
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| Tim in Phoenix wrote: | Guys
Electrohome built their projectors around board swapping for diagnosis and repair. They never provided schematics for power supplies. |
Tim my ecp service manual will prove you wrong on the board swapping thing as it has diagrams for pretty much each board in the set but not for either power supply(it has a diagram for the power entry module) but board swapping is the only way to find the culprit board should one fail(I have been tracking a issue I have been having with my ecp for the past two weeks and I am starting to think its because of the high voltage power supply failing(convergence drifts while its in use on the blue tube but not on the red tube I know it weird but I have tried both spare boards with no fix so waiting on the replacment high voltage power supply to get here(USPS is be a snail lately))
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crt king of black
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Wed Jun 26, 2013 6:37 am Post subject: |
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Good luck with that... I found an lvps that I should be able to grab in a week or two so if guess crossed I get this beast going and save it from being torn apart for bits!!!
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Wed Jun 26, 2013 6:41 am Post subject: |
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| mx83toy wrote: | | Good luck with that... I found an lvps that I should be able to grab in a week or two so if guess crossed I get this beast going and save it from being torn apart for bits!!! |
Thanks
I hope I can keep my little Ecp going as long as I can but if something major fails (eg lvps) I will most likely part it out but I hope that day doesn't come anytime soon
I hope you get your cheap marquee going(that was a steal of a deal you got)
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crt king of black
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Wed Jun 26, 2013 7:43 am Post subject: |
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yeah... CRT's are super hard to come by here in Sydney (actually all of Australia) so i kinda have to take what i can get i don't think ill be letting this one die just yet im prepared to spend some money on it given a half decent digital (yuk!) cost about a grand or two so i dont mind spending money on it its just that i got none atm 
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Fri Jun 28, 2013 3:02 pm Post subject: |
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Took lens's off tubes are mint!!!!
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Fri Jun 28, 2013 10:26 pm Post subject: |
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Sweet! Don't be surprised if the set has low hours. Years ago I purchased 12 Ampro 2000s. THey were all under 2" of dust, and looked like crap, but all of them were 0 hour units that were bought at $12K each, and then never used. I think I paid $50 each and sold them for $600 or so each back in the day...
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Sat Jun 29, 2013 4:52 am Post subject: |
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| Curt Palme wrote: | | Sweet! Don't be surprised if the set has low hours. Years ago I purchased 12 Ampro 2000s. THey were all under 2" of dust, and looked like crap, but all of them were 0 hour units that were bought at $12K each, and then never used. I think I paid $50 each and sold them for $600 or so each back in the day... |
dannggg sweet deal curt
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crt king of black
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Sat Jun 29, 2013 7:17 am Post subject: |
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Power supply now has fans!!!! Cleaned the boards and conectors got new fuses and done!!! Pretty excited as it looks to be in great condition ... So excited! I'll be semi assembling the unit to test further fingures crossed everyone...
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sat Jun 29, 2013 7:28 am Post subject: |
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Good luck mate  Did you have to resolder the power socket?
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stridsvognen
Guest
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| Posted: Sat Jun 29, 2013 7:32 am Post subject: |
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| mx83toy wrote: | | Power supply now has fans!!!! Cleaned the boards and conectors got new fuses and done!!! Pretty excited as it looks to be in great condition ... So excited! I'll be semi assembling the unit to test further fingures crossed everyone... |
Now you got the rest of the World exited to..
Come on, turn on that Marquee and tell us how amazing it looks.. 
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Sat Jun 29, 2013 12:38 pm Post subject: |
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Lvps worked!! Smoke came out the hvps got away too quick for me to get it back !!!
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stridsvognen
Guest
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| Posted: Sat Jun 29, 2013 1:02 pm Post subject: |
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1 up 1 Down.. = 0
Now u need to find the smoke and get it in there again.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sat Jun 29, 2013 1:33 pm Post subject: |
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Youll be right mate, plenty of spares around
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Sat Jun 29, 2013 4:58 pm Post subject: |
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| mx83toy wrote: | | Lvps worked!! Smoke came out the hvps got away too quick for me to get it back !!! |
Get it replaced and you will enjoy an amazing machine at a cheap price
FYI the hvps is not repairable mine on my Ecp had a block of silicone on the flyback
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crt king of black
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SisterOfMercy
Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands
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| Posted: Sat Jun 29, 2013 10:56 pm Post subject: |
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| the big E wrote: | | which is a dumb move on they're part |
on they are part... WHUT?
Even when I'm not conversing in my native language I can be a spelling nazi!
At least it's better with a Barco; you can learn quite a bit from their SMPS and the service manual.
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The kissing and the colour come crashing down
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Sat Jun 29, 2013 11:15 pm Post subject: |
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| SisterOfMercy wrote: | | the big E wrote: | | which is a dumb move on they're part |
on they are part... WHUT?
Even when I'm not conversing in my native language I can be a spelling nazi!
At least it's better with a Barco; you can learn quite a bit from their SMPS and the service manual. |
I have the service manual for my electrohome Ecp which has diagrams for everything except the power supplies
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crt king of black
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