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Author
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Topic: No Spark from Xetron XH-JR
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Skylar Kelly
Film Handler
![](/ubbmembers/9442a.jpg)
Posts: 6
From: Portland, ME USA
Registered: Apr 2016
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posted 07-28-2016 02:51 PM
Hi Everyone,
A couple months ago I started a project to bring film projection back to Portland, Maine. We won a small grant, hooked up with a great team, and lucked out when someone gave us the semi-permanent use of a Kinoton FP16.
Up until Monday the system was working really well. We have an X3-N50 supplying power for the XH-JR, which is currently running an Osram 1000W lamp.
On Monday I laced it up for a tech-check before a screening of experimental works. Blower powered up, vane switch toggled, power supply thunked on... but no spark. I tried manual ignition - no dice.
The lamphouse has a small pilot light to indicate that the system has power - it's on. It does not have a voltmeter though.
The bulb looks OK. No discoloration.
The only thing that's changed since our last screening on July 3rd is increased heat and humidity. All the connections in the lamphouse look and feel solid, but is it possible that the climate changed something?
The manual said to check for a spark from the igniter with the power supply turned off at the distribution panel. I did so and did not observe a spark. Does this rule out bad diodes? If the igniter is dead am I up a creek?
There is a small acrylic cylinder on the bottom of the igniter. The manual says the spark gap is fully enclosed by the igniter, but what I can see through the very hazy material looks suspiciously like a spark gap. If this is the case, can it be adjusted?
The XH-JR seems to be an uncommon lamp house. Information regarding it is scarce, and the manual I have is for the XH-1000 / 2000 / 4000. It's been annotated for the XH-JR, so I would not be surprised if some of the information within is not entirely accurate.
Our next public screening has been advertised for August 5th. Hopefully I can get it online before then.
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