I have two questions;

a) has anybody else encountered this and
b) is there any way with inside front panel dip switches that the processor can be switched to a film sound format on fire alarm shut down(the idea being that if the projectors are stopped then no sound will be routed through the processor should one be in Non-sync mode).

All the best

Steve

We've activated this function and wired accordingly on all installs, but it seems the CP650 still will not come out of non-sync. Is there a function in the CNA200 which will allow selection of a film sound format on fire alarm stop? Since the projetor stops, this will mute the sound, and if a theatre is between performances on non-sync this will also mute the sound by switching to a film format. It seems there may be a glitch in the CNA software or automation interface? Has anyone else had this particular problem?

We've overcome this on screens with CP45's by linking the mute terminal on the break out board in the CNA to Mono (since the Mute fuction does not exist on this processor).

Steff

I'm checking with our developers and will confirm, but I think what you say is correct.

What might be happening is that since these systems are already in an Intermission mode, there is no film presentation to stop.

I think the fire stop input is effective only if the automation is actually running a program. The normal intermission mode, such as you describe, is a state where the automation is NOT running any program, so there's literally nothing to stop.

I'll post back when I get some more information.

I observed precisely this condition on a CNA200/CP650 install, the CNA does not mute the sound if it's in intermission. It really needs to as some fire officers are very unhappy about this.

I didn't read your message properly, I apologize....I missed the part where the problem is when the fire alarm goes off while in Non-Sync.

If you have a master music system with distribuition amps...why not have a relay hooked to your alarm that interrupts the music feed to the DA system? This will kill it in the lobby and all theatres.

Steve

Unfortunately or fortunately (depends on your POV), the chain that I install for follow the usual UK practice of having separate CD players for each screen (such that non-sync music may be tailored to the mood of the feature)so I'd have to inturrupt the non-sync in each sound rack which I don't really want to do.

Steve

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This would be an option if we didn't have a CD player in each screen. This idea works well for the other chain I install and service since there is a distribution amp for non-sync. The other problem with your plan is that each CD player is fed from the same power strip as the processor and amplifiers. I wouldn't like the supply to the amps to be broken due to the fire alarm in case the supply was resumed. So I still need a solution to the shutdown problem!!!!!!!

All the best chaps