Film-Tech Forum ARCHIVE: CNA-100 Automation problem

This is topic CNA-100 Automation problem in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Mike Lauber (Member # 1486) on 07-28-2003, 11:24 PM:

When I start the movie on one of our projectors using a CNA-100 automation system, the bulb will light and changeover will open, but the motor does not start. I know I should swap or replace the relay, but where do I find this relay in a wall-mounted CNA-100?

Mike

Posted by Kris Brunton (Member # 432) on 07-30-2003, 01:39 AM:

I beleive the motor and the lamp are on the same relay in the CNA 100 so it is probable that there could be another problem. Does the motor start via the manual switches on the front panel?

The relay in question is K1 found on pg 21 in the manaul. THe manual can be downloaded in the manuals section of the website.

Just under that relay is a 10 amp slo blow fuse that I would check first.

Posted by Mike Lauber (Member # 1486) on 07-31-2003, 02:02 AM:

The motor does start fine using the switch on the front panel. I found the proper relay and tried swapping it with a different one on the board, and also tried swapping it completly with a different relay from another projector. Everything worked fine every time but that motor, so it's not a relay problem. I will check the fuse tomorrow, but the lamp and motor are on the same relay, so if the fuse was blown, how would the lamp automation be working correctly?

[ 07-31-2003, 03:14 AM: Message edited by: Mike Lauber ]

Posted by Gordon McLeod (Member # 33) on 07-31-2003, 10:03 PM:

The fuse is only in the AC line for the motor
The lamp circuit is a dry contact

Posted by Don Sneed (Member # 955) on 08-03-2003, 02:27 PM:

Hey Mike, what did you find the problem to be ???

Posted by Mike Lauber (Member # 1486) on 08-06-2003, 01:33 AM:

It did end up being simply the fuse on the board [Mad]

Got a new fuse at Menards, and it works fine now! Thanks for your help.