Even though they are cam/relay based, I like the Series 7. I have them on all five screens of my largest theatre. The ONLY (two) problems that I have with them are as follows:

On TWO of the the screens: When the failsafe arms are raised or lowered the houselights drop from full to half (on a Kelmar Encore dimmer). Example: End show cue is detected. Houselights are already at half for credits. Houselights go to full as expected. Film tails out, arms drop and lights drop back to half. Another example: Thread up. Lights at full. Tension is applied to take up platter pulling failsafe arms up...Lights drop to half. This problem happens about half of the time in each scenario (half of the end-shows and half of the thread ups). I haven't eplored this problem to deeply yet and was hoping that there is someone out there that may know what the problem is.

The other problem occurs on one of the screens: When the machine is started on automation the curtain doesn't raise. The curtain motor and controls are fine, but about 20% of the time the curtain will not go up and I have to run up and trigger it up manually.

 |  IP: Logged

I seem to remember there being more cams than this, but cannot recall. If this is it, I assume the curtain (since it opens at changeover) would be using the same cam as CHANGEOVER PULSE??? I assume that hold #1 and hold #2 might be relays for lamphouse, projector motor???

I am going to fiddle with the automations some tomorrow morning. The half-light thing is driving me mad. It is just really odd that the failsafe microswitch is the ONLY thing that causes the lights to fall back to half, and that I only have this problem in 2 of my 5 screens. One of them does it at least every other show, and the second only does it about once per day. It is unbearably frustrating!!!

 |  IP: Logged

Ah! I want to say "Get the guy who installed it to finish the job.." but of course that's often easier said than done...