Elmo GS 1200
Moderator: Andreas Wideroe
-
uwe
Elmo GS 1200
The sound recording does not work, put playing the sound works well. Sound heads are ok, too. My (german) dealer told me, that the electronic components had to be checked individually and be replaced, as there are no longer any replacement circuit boards. Does anyone know who offers repairs at affordable prices in germany ???
http://www.wittner-kinotechnik.de/aktue ... e=so_restp
Scroll down the page to "Ersatzteil Elmo GS1200" - (Replacementpart Elmo GS1200)
There are indeed replacement circuit boards here...
Happy hunting!
Scroll down the page to "Ersatzteil Elmo GS1200" - (Replacementpart Elmo GS1200)
There are indeed replacement circuit boards here...
Happy hunting!
try...
When you try to record, does the read-leds work? I know very well the elmo gs1200 (I have three halogen version and one HTI unit self made). Before to send it to the assistence you have to try this way:
you have to disassemble the lid where there are the vu-meters. This lid is locked by three screws. One of these is in the front, under the lamp switch. To find the others you have to disassemble the rear lid. These two screws are in corrispondence of the bottom corners of the vu-meters lid.
When you take away the front lid you see the boards that control the recording mode. These boards are assembled like a "sandwich". Well: you have to do a "shower" to these boards by a contact cleaner. You have to buy a no-oil spray contact cleaner, no dangerous for plastic components.
Important: you have to spray like a shower, without avarice! A lot of cleaner has to go in the long-contact you find between the boards in corrispondence of the rec-switches.
you have to disassemble the lid where there are the vu-meters. This lid is locked by three screws. One of these is in the front, under the lamp switch. To find the others you have to disassemble the rear lid. These two screws are in corrispondence of the bottom corners of the vu-meters lid.
When you take away the front lid you see the boards that control the recording mode. These boards are assembled like a "sandwich". Well: you have to do a "shower" to these boards by a contact cleaner. You have to buy a no-oil spray contact cleaner, no dangerous for plastic components.
Important: you have to spray like a shower, without avarice! A lot of cleaner has to go in the long-contact you find between the boards in corrispondence of the rec-switches.
elmo gs 1200
many thanks milael
but this spare part by wittner is intended for sync. recording.
but this spare part by wittner is intended for sync. recording.
Ugo
Hi pop.
the ESC is discontinued from a lot of time. You have to use this lamp:
EJL 24 v. 200 watts by General Electric.
I tested both the lamp (ESC and the EJL) and the EJL works better than the original ESC. I measured the lux on the screen by an exposimeter. From the EJL, 25 lux more thant the ESC. In the Elmo GS1200 sold in France there is an advice "don't use EJL lamp. It is for 16mm", but this not thrue.
Bye
Ugo
the ESC is discontinued from a lot of time. You have to use this lamp:
EJL 24 v. 200 watts by General Electric.
I tested both the lamp (ESC and the EJL) and the EJL works better than the original ESC. I measured the lux on the screen by an exposimeter. From the EJL, 25 lux more thant the ESC. In the Elmo GS1200 sold in France there is an advice "don't use EJL lamp. It is for 16mm", but this not thrue.
Bye
Ugo
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pelluet
Hello Popman
As Ugo rightly says the ESC has been discontinued so the EJL has become the only option for the GS 1200. It was designed for the 16mm gate and if you put the ESC and EJL side by side you will notice that the filament on the EJL is far larger, this means that much of the light is just shone on to the back of the 8mm gate area and not directed through it as is the case with the ESC.
However, all is not lost because Duncan at Derann; http://www.derann.co.uk/ has negotiatiated to have a batch of the old ESC lamps made up and they will apparently be sold for little more than the old list price. Might be worth checking with Duncan to see how the plans are going.
Mike
Ps. There are also plans afoot to make a new batch of lamps for the Xenon model of the GS 1200 but as I don't have this model I haven't been following the developments quite so closely.
As Ugo rightly says the ESC has been discontinued so the EJL has become the only option for the GS 1200. It was designed for the 16mm gate and if you put the ESC and EJL side by side you will notice that the filament on the EJL is far larger, this means that much of the light is just shone on to the back of the 8mm gate area and not directed through it as is the case with the ESC.
However, all is not lost because Duncan at Derann; http://www.derann.co.uk/ has negotiatiated to have a batch of the old ESC lamps made up and they will apparently be sold for little more than the old list price. Might be worth checking with Duncan to see how the plans are going.
Mike
Ps. There are also plans afoot to make a new batch of lamps for the Xenon model of the GS 1200 but as I don't have this model I haven't been following the developments quite so closely.
Hi Pelluet,
yes, theorical the EJL is for 16mm, but it works like a lamp for the super 8.
In the super 8 rules the distance between the lamp and the gate is 32 mm.
For this reason if you use the ELC (24 v. 250 w. - but I think it's better don't use it into a super 8 projectors) it's better to mount it at 40mm (like the Fumeo 9119 or 9120).
I made a lot of tests on the GS1200, and - incredible - the best result came from the EJL (Gen. Elec) at 32mm. I tried to put the lamp at 40 mm but there was too much difference between the lux at the center and at the corners.
I measured the lux on the screen (3 metres from the screen- 1 metre the long side of the screen), and the EJL was brighter than the ESC foir 20/25 lux.
bye
Ugo
yes, theorical the EJL is for 16mm, but it works like a lamp for the super 8.
In the super 8 rules the distance between the lamp and the gate is 32 mm.
For this reason if you use the ELC (24 v. 250 w. - but I think it's better don't use it into a super 8 projectors) it's better to mount it at 40mm (like the Fumeo 9119 or 9120).
I made a lot of tests on the GS1200, and - incredible - the best result came from the EJL (Gen. Elec) at 32mm. I tried to put the lamp at 40 mm but there was too much difference between the lux at the center and at the corners.
I measured the lux on the screen (3 metres from the screen- 1 metre the long side of the screen), and the EJL was brighter than the ESC foir 20/25 lux.
bye
Ugo
...fumeo support for scope lens...?
Asking to the Fumeo factory!! They are still working! The name is now
WBS (Fumeo)
Via Teocrito 47 - Milano
tel +39 02 27001141
Ask for Mr. Bianchi.
About the lamp, in Italy a good store is G. Ammirata.
http://www.ammirata.it
Asking to the Fumeo factory!! They are still working! The name is now
WBS (Fumeo)
Via Teocrito 47 - Milano
tel +39 02 27001141
Ask for Mr. Bianchi.
About the lamp, in Italy a good store is G. Ammirata.
http://www.ammirata.it
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FILM-THURSO
- Posts: 355
- Joined: Mon Oct 20, 2003 1:57 am
- Contact:
Ugo
It's wrong to use the 24v. 250 w. on the Elmo gs 1200 and the Fumeo 9119.
The transformer is able to supply a 200 w. lamp. When you use a 250 w. the volts at the lamp go down!. Example:
Line: 220 v.
Volts to a 200 watts lamp during the working: about 23,5 (this value is confirmed by the service manual)
Volts to a 250 watts lamp during the working: about 22,5.
Result:
1) less light on the screen
2) the color temperature goes down from 3250 K° to 3100° (but using the Osram Xenophot this problem isn't important)
3) the transformer is under pressure.
I repeat: the EJL is now the best, better than the original ESC.
It's right: Derann has the ESC (from Radiacs if I right remember) but the price is more expensive than a EJL- GE, and this ESC doesn't work fine like the EJL.
The transformer is able to supply a 200 w. lamp. When you use a 250 w. the volts at the lamp go down!. Example:
Line: 220 v.
Volts to a 200 watts lamp during the working: about 23,5 (this value is confirmed by the service manual)
Volts to a 250 watts lamp during the working: about 22,5.
Result:
1) less light on the screen
2) the color temperature goes down from 3250 K° to 3100° (but using the Osram Xenophot this problem isn't important)
3) the transformer is under pressure.
I repeat: the EJL is now the best, better than the original ESC.
It's right: Derann has the ESC (from Radiacs if I right remember) but the price is more expensive than a EJL- GE, and this ESC doesn't work fine like the EJL.
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FILM-THURSO
- Posts: 355
- Joined: Mon Oct 20, 2003 1:57 am
- Contact:
Thanks Ugo, I understand what you are saying. My Grandfather had an electrical shop back in the 60s where my dad learnt the trade and I get a lot of information from him about this kind of thing.
The image brightness has been my first consideration and in this instance it has been boosted nicely and Film-Thurso is very happy with the increased viewability.
For the purposes of projection particularly of our 3D footage Film-Thurso gives the upmost consideration to the projectors abilities. We have a few films that are shot in dark conditions and require more light as well as 3D material which requires even more. We did comparison projection tests and found the 250w lamp gave what we were looking for.
I notice that I said "12v", oops! - that was meant to be 24v, thanks for the information.
The image brightness has been my first consideration and in this instance it has been boosted nicely and Film-Thurso is very happy with the increased viewability.
For the purposes of projection particularly of our 3D footage Film-Thurso gives the upmost consideration to the projectors abilities. We have a few films that are shot in dark conditions and require more light as well as 3D material which requires even more. We did comparison projection tests and found the 250w lamp gave what we were looking for.
I notice that I said "12v", oops! - that was meant to be 24v, thanks for the information.