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Author
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Topic: CNA-100 Problem
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Ken Lackner
Phenomenal Film Handler
![](http://www.film-tech.com/ubbmembers/1002d.jpg)
Posts: 1907
From: Atlanta, GA, USA
Registered: Sep 2001
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posted 05-30-2012 12:54 PM
Mateo,
Welcome to the forums.
If I understand you correctly, I believe you are saying that all of the house functions (dimmer/sound/masking/etc.) operate correctly when you use the manual rocker switches, but when you press any of the white keys to operate your house functions, nothing happens. Is this correct?
I've never encountered this before, but it could be several things. First of all, are there any lights on the front panel? The three seven segment LED displays should each display a number, and each group of white keys for sound, masking, and lights should have one button lit indicating which format is active. If the above is true, then we know the front panel is getting power. If so, it could be a problem with the front panel itself, and you could try swapping the entire front panel with another known working automation, IF you are comfortable doing so.
Another thing to check is the LIN connection between the main board (located behind the front panel, this board plugs into the front panel) and the termination panel. Depending on your configuration, you may have two termination panels (a "house/aux" panel and a "console" termination panel), or there may be a single combo termination panel. Communication between the main board and either of these termination boards is via a 5-wire shielded cable known as the LIN. If this communication is broken, the automation cannot operate any of the devices attached to the termination board(s), but manual switches will still work because they are wired separately (for exactly this purpose).
Good luck! Let us know what you find.
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Mateo Miranda
Film Handler
Posts: 4
From: Santo Domingo, Republica Dominicana
Registered: Apr 2012
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posted 05-30-2012 08:14 PM
"If I understand you correctly, I believe you are saying that all of the house functions (dimmer/sound/masking/etc.) operate correctly when you use the manual rocker switches, but when you press any of the white keys to operate your house functions, nothing happens. Is this correct?"
Yes.
"I've never encountered this before, but it could be several things. First of all, are there any lights on the front panel? The three seven segment LED displays should each display a number, and each group of white keys for sound, masking, and lights should have one button lit indicating which format is active. If the above is true, then we know the front panel is getting power. If so, it could be a problem with the front panel itself, and you could try swapping the entire front panel with another known working automation, IF you are comfortable doing so."
I changed the front panel and it does the same. The LIN and LSN lights blink slowly if I remember correctly. I havent check the ribbon cable that Monte told me. Im going to work in that between Friday and Saturday. Thanks for the help.
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