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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 7:45 am Post subject: |
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| CasetheCorvetteman wrote: | | The problem is not so much surviving the shock, it probably wont kill you if it doesnt go across your heart, but the internal burns that are difficult to treat can cause cardiac arrest even days later. There was a case here about 2 years ago where a bloke copped a boot working on a new installation and failed to get checked out at hospital afterwards, 2 days later he was sat down at smoko and died due to sudden heart failure, possibly caused by irregular beat brought about by the shock. |
Terrible way to die 
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crt king of black
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jun 25, 2013 7:46 am Post subject: |
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| the big E wrote: | | CasetheCorvetteman wrote: | | stridsvognen wrote: | I dont know how it is around there.
But its always better to be safe than sorry.. I found out the hard way..  |
Ive been over to the hospital on the heart monitor a fair few times due to electric shocks while at work. Its something that comes with the job as an electrician where you may be required to work on installations that may have been done by non qualified persons, which is highly illegal here due to the fact they really have no business in there in the first place. Australia's electrical standards are some of the highest in the world. |
I have seen a idiot first hand poke his hand around live 120 before(not something I would do) |
He has no common sense then and will probably wind up paying for it somehow. There is no room for macho behaviour in the electrical trade.
| stridsvognen wrote: | | CasetheCorvetteman wrote: | | Yeah they wont protect you if you go across active and neutral together though. |
Nothings perfect.. Not even a Marquee, but at least its better than any other CRT projector brand.  |
Hahaha!! Wait til Gabór sees this!! 
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jun 25, 2013 7:48 am Post subject: |
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Strid you do know there is only NEC and 7 hangers on dont you?
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stridsvognen
Guest
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| Posted: Tue Jun 25, 2013 7:54 am Post subject: |
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| CasetheCorvetteman wrote: | | Strid you do know there is only NEC and 7 hangers on dont you? |
Naa.. i failed to store that.. I might notice some confused soul mention it..
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jun 25, 2013 8:01 am Post subject: |
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Its just an unfortunate fact that the only way i could move up the ladder was move to Barco
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Tue Jun 25, 2013 8:11 am Post subject: |
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chiming back in i might leave the live testing to a pro.... i have got a good idea??? but nope far as i'll go with the LVPS is fuses put togeter and test.... BTW fans spin fine by hand....
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jun 25, 2013 8:15 am Post subject: |
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Bring it up here to me and ill get it going for ya
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Tue Jun 25, 2013 9:00 am Post subject: |
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Mate I might take you up on that offer as it will only Cost me about 15 bucks to get the lvps there 
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jun 25, 2013 9:07 am Post subject: |
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Haha!! If you do i cant garrantee anything, i will have no way to test it other than plug it in and see what works. I would really need the whole machine, so if you start driving about 5am tomorrow you should here about the time i get home from work
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jun 25, 2013 9:16 am Post subject: |
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Try disconnecting everything from the power supply then plugging it in, if there is a short somewhere it probably wont allow anything to operate at all.
If it does start the fans with nothing else connected, try connecting one or two plugs at a time and turning it on, if it doesnt start then disconnect the item that stopped it, then try everything else, what ever stops it is where your fault will be, assuming it will operate that way.
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Tue Jun 25, 2013 12:56 pm Post subject: |
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I took the cover off one of the tubes and its a Panasonic 180dmb22 has the 2 , 4 abd 6 pole astig rings as well so I think that's good
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RaWsHaRk
Joined: 01 May 2009
Posts: 131
Location: Finland
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| Posted: Tue Jun 25, 2013 3:00 pm Post subject: |
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| mx83toy wrote: | | I took the cover off one of the tubes and its a Panasonic 180dmb22 has the 2 , 4 abd 6 pole astig rings as well so I think that's good |
yup its good. for a buck, how could u have gone wrong. if the tubes are clean they are worth something even if u end up crapping the set.
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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 4:15 pm Post subject: |
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| mx83toy wrote: | | I took the cover off one of the tubes and its a Panasonic 180dmb22 has the 2 , 4 abd 6 pole astig rings as well so I think that's good |
Panasonic tubes are great I now I have a projection tv that has p16 Panasonic tubes in it(nice and sharp) they would be worth something (providing they are in good shape)if the set is a write off
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crt king of black
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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 4:17 pm Post subject: |
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| CasetheCorvetteman wrote: | Try disconnecting everything from the power supply then plugging it in, if there is a short somewhere it probably wont allow anything to operate at all.
If it does start the fans with nothing else connected, try connecting one or two plugs at a time and turning it on, if it doesnt start then disconnect the item that stopped it, then try everything else, what ever stops it is where your fault will be, assuming it will operate that way. |
Case if I am not mistaken if a marquee set detects a short it cycles on and off(been reading a lot on curts site)
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crt king of black
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Tue Jun 25, 2013 4:50 pm Post subject: |
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| the big E wrote: | | CasetheCorvetteman wrote: | Try disconnecting everything from the power supply then plugging it in, if there is a short somewhere it probably wont allow anything to operate at all.
If it does start the fans with nothing else connected, try connecting one or two plugs at a time and turning it on, if it doesnt start then disconnect the item that stopped it, then try everything else, what ever stops it is where your fault will be, assuming it will operate that way. |
Case if I am not mistaken if a marquee set detects a short it cycles on and off(been reading a lot on curts site) |
Hi,
It usually will switch off and stay off. The shorted rail will be indicated via the corresponding LED on the front of the LVPS. In addition -if the supply for the control board is still working- it will have one or more error LEDs lit on the control board's panel.
Case's approach (unfortunately) isn't possible as the LVPS only has two connectors: Mains input and one large connector for the outputs. So, it's all connected or none.
If the LVPS won't start up at all I would recommend the following:
- Plug everything together
- Connect the mains plug
- Check if You can hear a relay clicking (if not, go to the last item in the list)
- Check if the amber StandBy LED on the control board's panel is lit (if not, You know...)
- Press "POWER" on the wireless remote and hold down the button for some seconds
- If this doesn't work, try with the wired remote
- Check if there's a blinking red LED on the control board's panel during pressing the remote control keys
- If not, You might try with a spare control board -or-
- Get a known working LVPS and start from there
Bottom line: Repairing a LVPS is a tricky task. Lots of components (basically it's multiple switch mode supplies in one box), lots of monitoring and safety circuits and no documentation. I would only try it if I had an elaborate test bench and at least a second unit for measurements and comparison. After all, it doesn't seem to be possible or even being safe trying to operate it when it's disconnected from the set. Please remember that one of its output voltages is 390V DC (for the HVPS)!
Regards,
barclay66
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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 4:54 pm Post subject: |
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| barclay66 wrote: | | the big E wrote: | | CasetheCorvetteman wrote: | Try disconnecting everything from the power supply then plugging it in, if there is a short somewhere it probably wont allow anything to operate at all.
If it does start the fans with nothing else connected, try connecting one or two plugs at a time and turning it on, if it doesnt start then disconnect the item that stopped it, then try everything else, what ever stops it is where your fault will be, assuming it will operate that way. |
Case if I am not mistaken if a marquee set detects a short it cycles on and off(been reading a lot on curts site) |
Hi,
It usually will switch off and stay off. The shorted rail will be indicated via the corresponding LED on the front of the LVPS. In addition -if the supply for the control board is still working- it will have one or more error LEDs lit on the control board's panel.
Case's approach (unfortunately) isn't possible as the LVPS only has two connectors: Mains input and one large connector for the outputs. So, it's all connected or none.
If the LVPS won't start up at all I would recommend the following:
- Plug everything together
- Connect the mains plug
- Check if You can hear a relay clicking (if not, go to the last item in the list)
- Check if the amber StandBy LED on the control board's panel is lit (if not, You know...)
- Press "POWER" on the wireless remote and hold down the button for some seconds
- If this doesn't work, try with the wired remote
- Check if there's a blinking red LED on the control board's panel during pressing the remote control keys
- If not, You might try with a spare control board -or-
- Get a known working LVPS and start from there
Bottom line: Repairing a LVPS is a tricky task. Lots of components (basically it's multiple switch mode supplies in one box), lots of monitoring and safety circuits and no documentation. I would only try it if I had an elaborate test bench and at least a second unit for measurements and comparison. After all, it doesn't seem to be possible or even being safe trying to operate it when it's disconnected from the set. Please remember that one of its output voltages is 390V DC (for the HVPS)!
Regards,
barclay66 |
Or a service manual
No doubt the 390v dc output would be risky to be around if not careful
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crt king of black
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Tue Jun 25, 2013 5:38 pm Post subject: |
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| CasetheCorvetteman wrote: | | stridsvognen wrote: | | CasetheCorvetteman wrote: | | Yeah they wont protect you if you go across active and neutral together though. |
Nothings perfect.. Not even a Marquee, but at least its better than any other CRT projector brand. |
Hahaha!! Wait til Gabór sees this!! |
Ah, for 1AUD the Marquee indeed a great machine
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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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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 5:59 pm Post subject: |
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| gjaky wrote: | | CasetheCorvetteman wrote: | | stridsvognen wrote: | | CasetheCorvetteman wrote: | | Yeah they wont protect you if you go across active and neutral together though. |
Nothings perfect.. Not even a Marquee, but at least its better than any other CRT projector brand. |
Hahaha!! Wait til Gabór sees this!! |
Ah, for 1AUD the Marquee indeed a great machine |
True but a nec 10pg still beats it in contrast ratio
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crt king of black
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Tue Jun 25, 2013 7:03 pm Post subject: |
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| 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
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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 8:19 pm Post subject: |
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| 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)
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crt king of black
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