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Author Topic: automation/light control issue
Jack Terrell
Film Handler

Posts: 7
From: Atlanta, GA, United States
Registered: Apr 2011


 - posted 04-24-2011 09:22 PM      Profile for Jack Terrell   Email Jack Terrell   Send New Private Message       Edit/Delete Post 
I am having another issue....

It is with our kelmar lighting control system. After the trailers - when the lights are at mid and need to go to low - the cue reads, but it locks the lighting system at mid. I won't let me push any buttons to change the light. I use a knife to simulate another cue on the center (the one that brings the lights down to low) and still no change. to unlock the light system I either have to activate the outboard cue, which closes the dowser and shuts off the sound, or just close the dowser and reopen it again. This sucks...

We have the Christie AM3, the Component Engineering FM-35 failsafe. The problem does not happen consistently with one print or with one projector. So far it has happened on three different projectors at seemingly random times.

Anyone know where I should start? I'm thinking it would be the cam that controls that stage in the automation, because those seem to be the most likely to go out in the chain.

Thanks.

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Phil Ranucci
Expert Film Handler

Posts: 236
From: Carpinteria,CA, United States
Registered: May 2006


 - posted 04-25-2011 01:44 AM      Profile for Phil Ranucci   Email Phil Ranucci   Send New Private Message       Edit/Delete Post 
I just had this problem with a Component failsafe. The lights were stuck at mid and wouldn't go out. Lindsey/Fairbanks dimmers. I thought it was a stuck relay in the dimmer but then I noticed that the 'inboard' LED was lit on the failsafe. I swapped the cue reader with a a spare and all was good.

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Dominic Espinosa
Phenomenal Film Handler

Posts: 1172
From: Boulder Creek, CA.
Registered: Jan 2004


 - posted 05-09-2011 03:06 PM      Profile for Dominic Espinosa   Email Dominic Espinosa   Send New Private Message       Edit/Delete Post 
Probably not the case in this issue but I had a kelmar a while back mounted at knee-height and someone had come by and bumped the button firmly enough that it stuck.
For whatever reason it would do high and mid but would never go into low because that button was stuck down against the chassis.

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 05-09-2011 04:24 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
The only reason the dimmer wouldn't respond is if something is providing a maintained mid command a jammed manual switch would not correct itself on dowser close so is suspect someone wired it to a maintained contact on the automation

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