I have a customer that wants us to make a fader system for his CP-65s such that Non-Sync gets it's own fader.

The reasoning is...whereas the music he plays in his theatres has a relatively constant level, the film vary widely. As such, he wants to be able to set the non-sync level and the feature level but have no interaction between the two.

I am considering takeing things a step further to make it a bit more universal...add yet one more fader for trailers (though it isn't needed or desired in this situation) so you would have three volume knobs (with tally LEDs to let you know which was active).

My question is, would anyone here also want such a device and what features would you want on it? (and please be serious).

We have also considered doing one for the CP-500 (having 4 preset fader settings that are cue selectable depending on how loud the trailer is but this one is loosing enthusiasum as trailers seem to be getting better.

Steve

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Thanks, I already looked at your tip. For the bulk of our customer's that isn't robust enough (chance of it coming out of sync since it is a toggle). If I were to do something like that I would have it checking the formats to ensure the correct fader is in use at all times.

This is not to detract from your excellent idea...after all it IS a $5 solution to an annoying problem!

Steve

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Which idea is a good idea? The $5 solution or just the idea of a separate non-sync fader.

The advantage of the separate non-sync fader is that the music would not suffer from the variances of the feature films.

Steve

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"Old projectionists never die, they just changeover!"

Instead of push button switches to activate each fader, have relay contacts. Configure it so each relay coil can be connected (via a jumper) one of two ways:

1. Connect the coil to the CP65's ID 'automation indicator' output. The idea is when one of the CP65's front panel format button is pushed (or the automation pulses,) one of the three faders becomes active. Jumpers select which format (mono, A, SR, Aux, NS, etc.)

2. Another jumper allows the relay coil to be controlled directly from the projector automation. That way a fader can be also selected by the cue reader or some external pulse.

I think if you press a format button on a CP65's front panel, it will automatically activate the local fader. So you would have to 'bang' the 'activate remote fader' line for each of the three.

A button to activate each of the faders could be placed next to each, for a 'just in case' possiablity.

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Copying another's circuit design is illegal, if I came up with it independantly is one thing but to out and out take the circuit is just plain wrong.

Futhermore, I wasn't asking how to do it, just what features others might want in it besides the driving issue, that is, a speparate non-sync fader that is active whenever the non-sync source is selected (by any means) and a main fader for all other formats.

Steve

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Also thanks to Gord for another SMART suggestion, but I think I will pass on that one too.

Steve

I did this one time. I used the format information outputs to select the appropriate fader. In my case the panel had a master along with 5 individuals. The individuals had a range of about +/- 6 dB. At the next ShoWest I had the thing in my booth along with a CP-55 (or maybe a 65) for people to play with. The front panel was lettered "Work in Progress - Comments Invited". I never got a single comment, pro or con. This is why it is not in our catalog.

Even though it was strictly a hand wired prototype on perf board, if you want it I'll send it to you for your amusement. It probably will still function.

Steve