You’ve checked your control cable, patching, fixture personalities, DMX addressing and absolutely every other possible fault (including the most common, human error!) has been eliminated – your DMX problems continue. Problem : DMX sort of works by fixtures behave erractically If one fixture doesn’t do anything, go back and check you didn’t just miss it out when connecting up your DMX cable chain. Having checked the DMX addresses, try resetting the fixture. If only one of your DMX fixtures is behaving oddly, then the problem may well be the address of that fixture.

If your all of your WobblyLiteTM 575s seem to respond to DMX but all do the same weird things, you have patched the console using the wrong fixture personality or have set-up the DMX addresses incorrectly.(See DMX Lighting Systems…) Problem – Strange behaviour from your lighting rig. This could be a fault in the DMX cable, but more often than not, turns out to be a error made when connecting up. There is an “air gap” (it’s not plugged in) somewhere in your control cable chain. The lighting desk has not been patched correctly or the DMX output cable has been plugged into the wrong output on the back of the console. The Grand Master or DBO button is set to OFF or you need to press clear on the lighting desk. If you have no DMX control over your lighting rig, then it is likely that: So, let’s look at their symptoms and eliminate them from our enquiries: and understand how DMX works and how to avoid problems in the first place (using correct cable, termination etc.)īut before we start troubleshooting the DMX… Non DMX faultsĭMX512 is pretty hardy and there are some problems in stage lighting rig that the novice will think is a DMX fault. Before reading this your should make sure that you have read DMX Lighting Systems. This happened to me on a gig last week, and it is classic DMX fault symptom that was the kick-start of this DMX problem guide. Some of them are fine, some don’t respond to DMX control at all and one just seems to think it is a random search light. But, your moving lights start to act strangely. Ok, so you’ve got the lighting rig together, dimmers working, moving lights responding and you need to start programming the desk because you have to be ready in a few hours for rehearsal. If you really way to become a DMX systems ninja, runs a course on DMX Stage Lighting Systems online. If you do have a fault in your DMX chain, it can be tricky to find the source so On Stage Lighting has this guide to troubleshooting DMX, how to spot a DMX fault and how to trace and solve the problems – and without a DMX tester. A DMX control system is pretty simple and robust and DMX faults are a less common problem in stage lighting, compared to blown lamps etc. DMX512 is the most common stage lighting control system that can control both intelligent lighting and DMX dimmer systems.

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