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Author
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Topic: flaking reflector
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Darren Fox
Film Handler
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Posts: 5
From: Lawrence, KS, USA
Registered: Jul 2002
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posted 02-09-2003 05:55 PM
I think I know the answer to my problem aready, but I'm looking for further details. The reflector in one of our booths is flaking a fine silver material. It's a Simplex XL with a Xetron XHN lamphouse. This lamphouse has always burned hot, but after putting in a new bulb recently, the heat level has gone way up. To the point of shutting down the lamphouse last night. When installing the bulb I noticed that the person who installed the previous bulb had not put the cover back on the internal blower. So the bulb was not properly being cooled. This, I believe, explains the damage to the reflector. So a new one must be ordered. So I guess finaly to my questions:
1. What is the process for installing a new reflector?
2. Since I have never done this and this theater is lacking in most tools and adjustment equipment is it best to call in a professional?
3. Does anyone know of good technicians in the Lawrence, KS area?
I have only recently gained control of this theater from the previous owner and many problems exist. It seems every time I fix one, three more pop up because of poor maintainence in the past. We've got shaky pictures, oily lenses, and heat/exhaust issues to name a few. I have at least got the projectionists on their way to proper booth work. Break-down and build-up have improved immensely. I don't want want to wind up on the You suck! list. Any tips you might have on the reflector and for a new manager would be greatly appreciated.
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John Walsh
Film God
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Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999
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posted 02-10-2003 10:13 PM
With a lamp only four years old, you *might* be able to get another. Recently, a reflector flaked on us and we were given another after the orginal was examined. The trick here though is you have to be without the reflector while it's being evaluated.
Since the previous person forgot the access cover, I'm sure that's the reason the reflector flaked. So you will need to buy a new one. But, after, why don't you send the old one back to Neumade/Xetron and let them evaluate it. I have found them to be very fair about stuff like that. If it looks like it was coated improperly at the beginning, they will tell you.
You should check the airflow (cfm) for the lamp. If it has always been hot, perhaps the fan on the roof is not larger enough.
I'm not sure of the exact type lamphouse you have, but on most of them there is small fuse on that PC board. It powers the digital volt/amp meter and unplugs from a socket. It is made by Littlefuse and is called a "Micro" fuse; part number 273.250. It does not look like a fuse, so often people overlook it.
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