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NEC 9PG, my cheap setup
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blue_z



Joined: 27 Apr 2006
Posts: 63
Location: So Calif

Posted: Wed Apr 17, 2013 11:01 pm    Post subject:

fuchs wrote:
Are the magnetics under high voltage? I'd have to probably turn them with the set on to get the picture lined up mechanically.

Always use the one-hand rule: work with only one hand near high-voltage equipment.
Put the other hand behind your back and/or in your pocket. The worst thing you could do is to have this other hand grounded (e.g. touching metal chassis).
The idea is avoid current flow across your chest (and heart) if you do happen to get shocked.

Regards
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fuchs



Joined: 27 Jun 2012
Posts: 153
Location: the NL

Posted: Tue Jun 18, 2013 6:00 pm    Post subject:

We're going to hang the bastard Twisted Evil
Fellow forum member Sisterofmercy convinced me and customized an old Barco-600 mount for me.
He's also working on my Sytem Control board to change some caps, which seems not so easy.
So uh, thank you, Sisterofmercy.



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onkel fuchs' cheapskate cinema
NEC plain 9PG
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gjaky



Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary

Posted: Tue Jun 18, 2013 6:11 pm    Post subject:

STOP!
There is not enough air gap for tha chassis fans, open a hole under the fans!

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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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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Tue Jun 18, 2013 6:13 pm    Post subject:

I totally agree, cut into the plate at least for the fans to blow through.

Just my $.02, I'd also take the metal cover off and leave it off, the one that covers the system boards. It hit me the other day that the boards hold in by themselves just fine, and the tiny holes in the cover really give no air movement. Take the cover off.
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SisterOfMercy



Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands

Posted: Tue Jun 18, 2013 6:21 pm    Post subject:

The plate is offset from the PJ by 30 mm. It has to be, because of the extra heatsinks that were added to the PJ once.
Of course I could make a few extra holes in the plate, no problem.

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gjaky



Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary

Posted: Tue Jun 18, 2013 6:26 pm    Post subject:

It looks much less on the picture, not that the 30mm is much, but in a typical floor mount setup probably there is even less space, extra holes surely would help to keep the machine cool though.
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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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fuchs



Joined: 27 Jun 2012
Posts: 153
Location: the NL

Posted: Tue Jun 18, 2013 6:31 pm    Post subject:

Yes indeed. the gap is actually larger than when the projector was sitting on its feet in a desktop-configuration.
You can see here that the gap just clears the heatsinks. That gap is indeed 30mm (= about 1.2 inch).



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CasetheCorvetteman



Joined: 09 Nov 2008
Posts: 6326
Location: Australia

Posted: Wed Jun 19, 2013 12:28 am    Post subject:

You have it attached the correct points? Not in the corners!!

I too would cut holes for the fans, and add some more fans to blow into that area where the focus and convergence boards are, cause that area gets effing hot.
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SisterOfMercy



Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands

Posted: Thu Jun 20, 2013 8:07 pm    Post subject:

CasetheCorvetteman wrote:
You have it attached the correct points? Not in the corners!!


What would be the problem with those points then? Twisted Evil

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gjaky



Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary

Posted: Thu Jun 20, 2013 8:11 pm    Post subject:

SisterOfMercy wrote:
CasetheCorvetteman wrote:
You have it attached the correct points? Not in the corners!!


What would be the problem with those points then? Twisted Evil


It turned out for a few times that the belly cranked and ruined the whole pj.

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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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CasetheCorvetteman



Joined: 09 Nov 2008
Posts: 6326
Location: Australia

Posted: Thu Jun 20, 2013 11:53 pm    Post subject:

SisterOfMercy wrote:
CasetheCorvetteman wrote:
You have it attached the correct points? Not in the corners!!


What would be the problem with those points then? Twisted Evil

Those 4 corner points where the feet screw in are designed for holding the feet, not for hanging the machine.

The 4 holes about half way down on each side are for hanging.

DO NOT use the feet holes for hanging the machine. Youre asking for trouble if you do, and there is no reason to use them in the first place.
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SisterOfMercy



Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands

Posted: Fri Jun 21, 2013 9:51 am    Post subject:

Don't worry, it's already setup to use the ceiling mounting holes.
It's a shame, the thread of the feet is a nice size Smile

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fuchs



Joined: 27 Jun 2012
Posts: 153
Location: the NL

Posted: Fri Jun 21, 2013 9:54 am    Post subject:

No, we won't. Fortunately, it is possible to use the bolt holes halfway down.
It's a bit hard to see in the pic, but thanks for the heads up.

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onkel fuchs' cheapskate cinema
NEC plain 9PG
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CasetheCorvetteman



Joined: 09 Nov 2008
Posts: 6326
Location: Australia

Posted: Fri Jun 21, 2013 10:16 am    Post subject:

Yeah mate they may look nice, but the chassis isn't designed for that as a hanging point!!

I made up some brackets for both my 9PG and my XG, ill take a pic and post it up soon.
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CasetheCorvetteman



Joined: 09 Nov 2008
Posts: 6326
Location: Australia

Posted: Fri Jun 21, 2013 10:26 am    Post subject:

These are on the XG so i used them stock, the PG i cut them for the fans.

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RaWsHaRk



Joined: 01 May 2009
Posts: 131
Location: Finland

Posted: Fri Jun 21, 2013 11:12 am    Post subject:

fuchs wrote:
We're going to hang the bastard Twisted Evil
Fellow forum member Sisterofmercy convinced me and customized an old Barco-600 mount for me.
He's also working on my Sytem Control board to change some caps, which seems not so easy.
So uh, thank you, Sisterofmercy.


thanx for the pic, I have a similar mount that I think came with a barco data 800 to me, never saw one in pics before and never used it myself. does anyone have pics of one attached to a barco crt?

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Electrohome Marquee 7500.
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fuchs



Joined: 27 Jun 2012
Posts: 153
Location: the NL

Posted: Fri Jun 21, 2013 10:52 pm    Post subject:

RaWsHaRk wrote:
thanx for the pic, I have a similar mount that I think came with a barco data 800 to me, never saw one in pics before and never used it myself. does anyone have pics of one attached to a barco crt?

From what I've understood you would "slide in" a Barco 600.
The NEC has no rails to slide, but it's obvious in the picture where the projector would normally slide in.

And by the way, thanks for posting your solution, Case.
It is interesting to see what other people have made. And who knows what I need in the future.

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SisterOfMercy



Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands

Posted: Fri Jun 21, 2013 11:47 pm    Post subject:

I never understood how this ceiling mount was going to fit a Barco. Until I found out the rails on the Barco 600 were in a different direction! It slides on, just like a 808 on a Barco ceiling mount made for it, but just from a different angle.

Just look up 'barco cm100' on google images and you will probably find a shot that explains it all.

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CasetheCorvetteman



Joined: 09 Nov 2008
Posts: 6326
Location: Australia

Posted: Sat Jun 22, 2013 12:54 am    Post subject:

Why is there a resistor hanging out the base?
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