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Author Topic: 1 Very sick ElMo GS 1200 Xenon for restoration
Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted April 30, 2011 04:36 PM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
I obtained an Elmo Gs1200 Xenon for E300. The machine appears
complete but it was obviously badly treated. Its not working &
'popping' some fuses. My intention is to completley restore it to its former glory but due to the absence of spare parts this
may be an impossible task..

[ May 06, 2011, 03:01 PM: Message edited by: Desmond Godwin ]

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Douglas Meltzer
Moderator

Posts: 4554
From: New York, NY, USA
Registered: Jun 2003

- posted April 30, 2011 04:49 PM      Profile for Douglas Meltzer   Email Douglas Meltzer   Send New Private Message       Edit/Delete Post 
Desmond,

Welcome to the Forum! We do have the service manual (for the tungsten model) available for download here. Please check the Manuals link in the upper left corner.

You might also want to speak with the highly regarded UK Elmo specialist Bill Parsons. His information can be found on the BFCC site.

Best of luck!

Doug

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I think there's room for just one more film.....

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Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted April 30, 2011 04:57 PM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
Tkns Doug for the info. Yes after joining the forum i quickly have found the service manual & although it is for the tungsten
GS the mechanics and motor\ amp circuits appear to be similiar.
Its been a great help to me for dismantling and i will try the link you supplied..
Tkns Desmond

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Douglas Meltzer
Moderator

Posts: 4554
From: New York, NY, USA
Registered: Jun 2003

- posted April 30, 2011 05:01 PM      Profile for Douglas Meltzer   Email Douglas Meltzer   Send New Private Message       Edit/Delete Post 
You're very welcome. I'm looking forward to the updates!

Doug

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I think there's room for just one more film.....

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Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

- posted April 30, 2011 05:13 PM      Profile for Paul Adsett     Send New Private Message       Edit/Delete Post 
Desmond,
I have no idea what your specific problem may be with that GS1200, but in my (limited) experience 90% of the problems on GS1200's seem to be switch and contact related.

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
Elmo GS1200 f1.0 2-blade
Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

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Ugo Grassi
Jedi Master Film Handler

Posts: 506
From: Avellino (Italy)
Registered: Dec 2003

- posted May 01, 2011 05:11 AM      Profile for Ugo Grassi     Send New Private Message       Edit/Delete Post 
At first the lamp mirror is lost. To find it it's hard.
Second: if the main fuse is burn out, the power lamp supply is broken. I know how to fix it, but after you'll have to check the igniter too.
Third: where is the front lid? without it a safety switch doesn't close the circuit, and to switch on the lamp is impossible...
Anyway I have the diagrams of the the power supply/igniter

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Bye
Ugo

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Bill Parsons
Film Handler

Posts: 66
From: Brookland. UK
Registered: Jul 2004

- posted May 01, 2011 06:53 AM      Profile for Bill Parsons   Email Bill Parsons   Send New Private Message       Edit/Delete Post 
It looks as if you have the lamp mirror in your 2nd picture, this is good as Ugo says they are hard to find, equivalent lamps are still obtainable, the safety switch Ugo mentioned is easy to bypass for testing.
Please remember Ugo it was me that told you how to repair the Xenon power supplies, a bit of credit would be nice,
Bill.
[Smile]

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Ugo Grassi
Jedi Master Film Handler

Posts: 506
From: Avellino (Italy)
Registered: Dec 2003

- posted May 01, 2011 08:28 AM      Profile for Ugo Grassi     Send New Private Message       Edit/Delete Post 
Oh Bill, you have a big lot of credits by me! I never said something of contrary to your big experience.. or not ?? (if I did it, I'm sorry... shame on me).
Without you and Kevin the "Elmo world" is poor...

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Bye
Ugo

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Bill Parsons
Film Handler

Posts: 66
From: Brookland. UK
Registered: Jul 2004

- posted May 01, 2011 09:07 AM      Profile for Bill Parsons   Email Bill Parsons   Send New Private Message       Edit/Delete Post 
Thanks for your words Ugo.
Desmond, if you do get the projector working ok, I can provide you with a front cover for a standard GS1200, it would require a couple of small modifications.
Bill.

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Douglas Meltzer
Moderator

Posts: 4554
From: New York, NY, USA
Registered: Jun 2003

- posted May 01, 2011 11:16 AM      Profile for Douglas Meltzer   Email Douglas Meltzer   Send New Private Message       Edit/Delete Post 
Here is Desmond's 2nd photo.

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I think there's room for just one more film.....

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Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted May 01, 2011 03:56 PM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
Tkns V much Paul,Ugo, and esp Bill for the offer of a front cover but as i was saying the projector is pretty much intact
and my initial photo was showing the machine in the start of
stripdown. T'was only after starting work on it that i decided
to post some pics (hence its looking a little naked in the pic!)
Yes Ugo there appears to be problems with the lamp power supply
with shorts on the driver 2Sc 2139 transistors and some fast diodes in trouble also there is problems on the igniter board.
(someone has aready been at these) I would really appreciate a copy of the lamp's power supply as i intend to repair it. The covers are damaged and i am having them restored and repainted.

[ May 06, 2011, 03:00 PM: Message edited by: Desmond Godwin ]

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Ugo Grassi
Jedi Master Film Handler

Posts: 506
From: Avellino (Italy)
Registered: Dec 2003

- posted May 02, 2011 05:06 PM      Profile for Ugo Grassi     Send New Private Message       Edit/Delete Post 
Desmond, I sent to you an email.

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Bye
Ugo

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Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted May 02, 2011 06:26 PM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
Yes tkns Ugo I got your e\mail. i went to that link you provided and as im not registered i was unable to LOG-in to the site.
(UPDATE 6-5-11) After some initial reg. problems (now sorted)
I was able to obtain the schematic diagram(s) for the XeNoN
power supply for the GS\1200 Tkns again Ugo..

[ May 06, 2011, 03:10 PM: Message edited by: Desmond Godwin ]

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Brad Kimball
Phenomenal Film Handler

Posts: 1171
From: Highland Mills, NY USA
Registered: Jun 2003

- posted May 02, 2011 07:02 PM      Profile for Brad Kimball   Email Brad Kimball   Send New Private Message       Edit/Delete Post 
I would not, in my wildest of dreams, ever try to to what you are doing with your Elmo or any other unit. What a gift you fellas have for electronics. Absolutely priceless!

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Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted May 03, 2011 08:30 AM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
Tkns Brad for your comment's. In fact the Elmo's electronics are not as difficult to work on in comparasion with to-day's
hi-tec devices -which make it easier for me to get around
its basic circuitry.In its time (this model is 1981) it would have been advanced with its electronics etc. (esp.its Xenon Power supply) but its electronics design would be so much different,smaller & lighter, and more power efficient, were it being manufactured to-day 30 yrs on...

[ May 30, 2011, 04:38 PM: Message edited by: Desmond Godwin ]

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Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted July 29, 2011 07:11 PM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
The Elmo GS 1200 Xenon restoration is still on-going and its been difficult to obtain spares but that situation has now improved and i hope soon to have the projector up and running.
I will post an update with some more pic's and hopefully a small
video (to show projector in action) so just to let you folk's know that im still out here working on the projector..

Desmond [Wink]

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Douglas Meltzer
Moderator

Posts: 4554
From: New York, NY, USA
Registered: Jun 2003

- posted July 30, 2011 10:08 AM      Profile for Douglas Meltzer   Email Douglas Meltzer   Send New Private Message       Edit/Delete Post 
Desmond,

Great to hear from you! I'm glad the restoration is progressing well.

Doug

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I think there's room for just one more film.....

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Desmond Godwin
Film Handler

Posts: 75
From: Ireland
Registered: Apr 2011

- posted July 30, 2011 05:07 PM      Profile for Desmond Godwin   Author's Homepage   Email Desmond Godwin   Send New Private Message       Edit/Delete Post 
Tknssss Doug for the good wishes..

Desmond

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