Recent content by cmgunn

It does appear to be a stepper motor. I'll see if I can get one on order.

I swapped that whole module with the one from another fixture. The problem would be with the motor, we checked the harness.

One of our Martin Mac 550's is having a dimming problem. It looks like the motor is sticking. We tried swapping it out with another fixture's motor and the problem followed the motor. Is there anything to try on the motor (cleaning?) or will it have to be replaced?

The reason I ask is because both 550's are in need of a new ballasts, and one needs a power supply as well. The price of 2 ballasts, a power supply and the main PCB would exceed the cost of replacement for both. But I will verify this with Martin before making a decision.

On the fixtures themselves, is the opto on its own PCB or is it built into something like the main PCB?

I did have an installer come out and look at our system. It was put in before I got there and we don't have a map, but suspect it all needs to be rerun anyways. We are unable to bypass the conduit as there is no other way for the run to reach the stage. I will remove the splitter, as that was...

Our run goes through a conduit in the floor, then up to the amp room. There is an opto-splitter which is much later in the chain. My biggest area of concern is the dimmer packs. They put them on the same run, but they are LMX. They have a DMX converter box, but since LMX does run power over the...

The 575 doesn't respond at all. It does a reset as soon as a DMX signal is presented, then begins to twitch (P/T only) nothing else responds until we remove the DMX signal.The 550 responds somewhat, but everything, gobo wheels, color wheels, misc effects etc stutter and twitch when a DMX...

To clarify, I have tried the followingHooked the fixtures to the console individually, with nothing other than that one fixture connected. Still had the problem. Tried with and with out the terminator, no improvement either way. Tried a different console, same problem. Tried different...

There's probably a few hundred feet of cable run. The 550 is about in the middle of the chain, the 575 is first in line. I've tried removing the fixtures from the dmx chain and hooking them directly to the console with a 15ft cable and got the same result.

One stopped working during a show Saturday night. The other the following morning. They stopped responding on power up, not during the show. I also had a Mac 300 the week prior sent off for repair. When it would tilt past a certain position, it would swing around then come back. A few days later...

The run is terminated. Both have been connected directly to both a Maxxyz console and a PC running lightjockey with nothing else plugged in.

Hi,About 2 weeks ago I started having some problems with a Martin Mac 550 and an Elation Power Spot 575 switching and flashing when connected to DMX. Both fixtures work fine in test mode. I have tried pulling the fixtures down and connecting them directly to the console, even tried different...