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Topic: Chronic dimness
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Richard Hamilton
Phenomenal Film Handler
Posts: 1341
From: Evansville, Indiana
Registered: Jan 2000
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posted 08-10-2011 01:28 AM
quote: Tony Bandiera Jr
Recheck (with a laser kit if possible) the height, lateral and azimuth and tilt of those lamphouses.
Reminds me of a funny story. When I was working at Ballantyne I went in to talk to the guy aligning the lamphouses. Cool guy, maybe mid twenties. I had some time to kill, so I asked him to show me what he does. He had a laser kit that was made there. when he got done, he took the mirror out of the reflector, it was machined there. I asked him if I could look at it because I noticed it didn't fit very snug in the reflector. When he handed it to me it rattled. The damn mirror inside was loose. I put it back in and moved it around and rotated it, and the laser reflection was moving around everywhere. He said "dude, I'm just doing what they showed me to do". I laughed and told him just to get them close, I check the alignment when I install them because they get bounced around so much from the factory to the booth.
Dominic, is this a new install or were you just changing bulbs and if so what was the light output before? Have you checked the amps and volts, also the 3 phase coming in? I've had to change a few breakers in the panels because the electricians didn't tighten them good enough. I've also had to change contactors in the consoles for the same reason. I started terminating my own power on installs and tightening the breakers at night when they were gone.
Rick
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Dominic Espinosa
Phenomenal Film Handler
Posts: 1172
From: Boulder Creek, CA.
Registered: Jan 2004
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posted 08-10-2011 03:54 AM
Thanks guys.
Richard, current all reads normal.
In the Cinemechanica it's got a new contactor, new diodes, and relatively new capacitors.
As well as a new reflector.
The LP has a reasonably good condition reflector, older Christie rectifier. Power was a little low, tweaked it up but nothing else seemed to be wrong with it.
Our preferred electrician (years of experience doing theater electrical specifically for us) did the panels so I'm confident in the connections being tight.
These are separate locations. I took over oversight of the projection, facilities, and operations management in whole last year and have been working through a back-log of issues the guy I replaced had left standing.
Some for years on end.
These, unfortunately, were not the highest priority; you can imagine the state of affairs.
But I digress...I was afraid I'd have to get up close and personal with it and diddle with alignment. Ugh.
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![[Eek!]](eek.gif)
Scary stupid. And also, wouldn't it like instantly melt or something equally horrid? I am imagining a lamp explosion after a few minutes running time...the thing wouldn't be on long enough for anyone to notice how dim the picture was!
![[thumbsup]](graemlins/thumbsup.gif)
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