Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[40 Frames]

Hi Steve,

Someone on this list can likely help.
http://www.16mmdirectory.org/projectors/eiki?country=US

I've not talked to Richard for some time, but I know he ended up with a lot
of parts and manuals (directly) from Eiki USA. Last name is Patchett,
listed under RC's Classic Collection. Optech and other vendors on the list
can likely assist as well.

Best,
Alain




On Mon, Sep 18, 2017 at 6:23 PM, Steve Polta  wrote:

> Hi. I'm looking for a full service manual for an Eiki EX-2000A 16mm
> projector. PDF would be fab but paper-copy-by-mail would be cool too. Any
> leads? This would be in support of San Francisco Cinematheque if that
> matters. Thanks.
>
> Steve Polta
>
> ___
> FrameWorks mailing list
> FrameWorks@jonasmekasfilms.com
> https://mailman-mail5.webfaction.com/listinfo/frameworks
>
>


-- 
40 FRAMES
Portland, Oregon USA

+1 503 231 6548
www.40frames.org
www.16mmdirectory.org
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[Scott Dorsey]

I think it would be more of a convenience issue if you lost the plastic part
of the knob.  But it also should be possible to put an off the shelf knob
on there too.
--scott
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[Els van Riel]

though 4000 is not 2000, this one might help:

http://acofs.org.au/part_5_files/Eiki/Tech%204000P%20Xenon.PDF 


I use a few layers of heat-shrink tubing to repair the focus knob.

best regards,
Els



On 19 Sep 2017, at 04:34, Steve Polta  wrote:

Ok ok.
This is fun.
But I'm really looking for info on the lamp's focusing knobs. Specifically on 
the white plastic cover that covers the knob that controls how close/far the 
lamp is to/from the lens/screen. Even more specifically I'm wondering if the 
loss of this plastic cap (like for example if it melted due to heat) is a big 
deal.

Asking for a manual was sort of a bonus (to myself/Cinematheque) because once 
we had one, lent it, and didn't get it back.

Anyone plastic cap folks out there?

Steve

On Sep 18, 2017 7:22 PM, "Scott Dorsey" mailto:klu...@panix.com>> wrote:
What's wrong with the xenon lamp circuitry?

It should be a constant current source, combined with a little high voltage
supply to strike the lamp.  When the high voltage pulse makes the thing arc
over, the plasma between the contacts is conductive so all of a sudden the
thing turns into a low resistance device and it only takes a couple hundred
volts for the arc to be sustained.  The constant current source means that
the thing remains at the correct operating point as the electrodes slowly
burn away.

I _think_ that the EX-2000A uses trick magnetics to do the job... it's a
big saturable reactor that acts as an AC constant current source, then
rectifiers to turn it into DC, and then a filter capacitor made with
multiple capacitors and inductors in a chain to eliminate the ripple.

You could talk to Steve Guttag, I know he has worked on those occasionally.
There isn't much to fail non-catastrophically.
--scott
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com 
https://mailman-mail5.webfaction.com/listinfo/frameworks 

___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[Steve Polta]

Ok ok.
This is fun.
But I'm really looking for info on the lamp's focusing knobs. Specifically
on the white plastic cover that covers the knob that controls how close/far
the lamp is to/from the lens/screen. Even more specifically I'm wondering
if the loss of this plastic cap (like for example if it melted due to heat)
is a big deal.

Asking for a manual was sort of a bonus (to myself/Cinematheque) because
once we had one, lent it, and didn't get it back.

Anyone plastic cap folks out there?

Steve

On Sep 18, 2017 7:22 PM, "Scott Dorsey"  wrote:

> What's wrong with the xenon lamp circuitry?
>
> It should be a constant current source, combined with a little high voltage
> supply to strike the lamp.  When the high voltage pulse makes the thing arc
> over, the plasma between the contacts is conductive so all of a sudden the
> thing turns into a low resistance device and it only takes a couple hundred
> volts for the arc to be sustained.  The constant current source means that
> the thing remains at the correct operating point as the electrodes slowly
> burn away.
>
> I _think_ that the EX-2000A uses trick magnetics to do the job... it's a
> big saturable reactor that acts as an AC constant current source, then
> rectifiers to turn it into DC, and then a filter capacitor made with
> multiple capacitors and inductors in a chain to eliminate the ripple.
>
> You could talk to Steve Guttag, I know he has worked on those occasionally.
> There isn't much to fail non-catastrophically.
> --scott
> ___
> FrameWorks mailing list
> FrameWorks@jonasmekasfilms.com
> https://mailman-mail5.webfaction.com/listinfo/frameworks
>
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[Scott Dorsey]

What's wrong with the xenon lamp circuitry?

It should be a constant current source, combined with a little high voltage
supply to strike the lamp.  When the high voltage pulse makes the thing arc
over, the plasma between the contacts is conductive so all of a sudden the
thing turns into a low resistance device and it only takes a couple hundred
volts for the arc to be sustained.  The constant current source means that
the thing remains at the correct operating point as the electrodes slowly
burn away.

I _think_ that the EX-2000A uses trick magnetics to do the job... it's a
big saturable reactor that acts as an AC constant current source, then 
rectifiers to turn it into DC, and then a filter capacitor made with
multiple capacitors and inductors in a chain to eliminate the ripple.

You could talk to Steve Guttag, I know he has worked on those occasionally.
There isn't much to fail non-catastrophically.
--scott
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[Steve Polta]

Thanks. It's actually the Xenon lamp circuitry that I'm trying to figure
out (also trying to figure out lamp focusing). I really appreciate the
share of this manual however. Thank you.

Steve Polta

On Mon, Sep 18, 2017 at 7:01 PM Jean-Louis Seguin 
wrote:

> I'm not an expert but It would seem that the EX-2000 is the same as the
> N-series except for the Xenon lamp circuitry.
>
> Manual for N-series here:
>
> http://www.film-tech.com/warehouse/manuals/EIKINSERVICE.pdf
>
> Jean-Louis
>
> Sent from my iPhone
>
> On Sep 18, 2017, at 9:23 PM, Steve Polta  wrote:
>
> Hi. I'm looking for a full service manual for an Eiki EX-2000A 16mm
> projector. PDF would be fab but paper-copy-by-mail would be cool too. Any
> leads? This would be in support of San Francisco Cinematheque if that
> matters. Thanks.
>
> Steve Polta
>
> ___
>
>
> FrameWorks mailing list
> FrameWorks@jonasmekasfilms.com
> https://mailman-mail5.webfaction.com/listinfo/frameworks
>
> ___
> FrameWorks mailing list
> FrameWorks@jonasmekasfilms.com
> https://mailman-mail5.webfaction.com/listinfo/frameworks
>
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks

Re: [Frameworks] Seeking Projector Manual (Eiki EX-2000A)

[Jean-Louis Seguin]

I'm not an expert but It would seem that the EX-2000 is the same as the 
N-series except for the Xenon lamp circuitry.

Manual for N-series here:

http://www.film-tech.com/warehouse/manuals/EIKINSERVICE.pdf

Jean-Louis

Sent from my iPhone

> On Sep 18, 2017, at 9:23 PM, Steve Polta  wrote:
> 
> Hi. I'm looking for a full service manual for an Eiki EX-2000A 16mm 
> projector. PDF would be fab but paper-copy-by-mail would be cool too. Any 
> leads? This would be in support of San Francisco Cinematheque if that 
> matters. Thanks.
> 
> Steve Polta
> ___
> FrameWorks mailing list
> FrameWorks@jonasmekasfilms.com
> https://mailman-mail5.webfaction.com/listinfo/frameworks
___
FrameWorks mailing list
FrameWorks@jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks