dmarin Posted January 3, 2019 Share Posted January 3, 2019 Hello, I own a cheap standard 512 DMX controller and 4 brand new (cheap Chinese) par cans.The par cans are working properly standalone without DMX, but when I connect them to the console no signal and no control to the lights!The cable is DMX, the address is correct, and I use also a terminator with 120ohm resistor.The console also has a polarity switch but no luck!I forgot to mention that I test once at a time and not all together! Also the console is working properly with other "more expensive" lights. Please your help!! Thanks! Link to comment Share on other sites More sharing options...
timsabre Posted January 3, 2019 Share Posted January 3, 2019 Um, well there are a few things might be happening here.Do you have any information with the par cans about what the DMX channels do?Do you have other DMX equipment you can use to test that the controller is working properly? Link to comment Share on other sites More sharing options...
dmarin Posted January 3, 2019 Author Share Posted January 3, 2019 timsabre thanks for your reply! 1) The controller is working properly I have tested with other DMX equipment.2) The par cans is 7 ch mode, the controller is 16 channels so the addressing is ch1-17-32 etc Link to comment Share on other sites More sharing options...
timsabre Posted January 3, 2019 Share Posted January 3, 2019 OK, do you know what the 7 channels do? What have you tried on the faders?Some LED par cans require a certain value on one or more channels before they will light up. Link to comment Share on other sites More sharing options...
dmarin Posted January 3, 2019 Author Share Posted January 3, 2019 I just tested an ADJ Mega Tripar par car and worked flawlessly with the controller so it is not the controller the problem. On Chinese par cans the channels are 7.Ch1: BrightnessCh2: RCh3: GCh4:BCh5: StrobeCh6: PulseCh7: Colors shade I have "played" with all faders but no light :-( This happens to all 4 par cans so it is not one with problem.Is there any internal connections that can I test to the par cans? Link to comment Share on other sites More sharing options...
ImagineerTom Posted January 3, 2019 Share Posted January 3, 2019 Some DMX par cans require you to set a switch to tell them whether they should operate in master/slave standalone mode or in DMX controlled mode.It's also not unheard of for the DMX dip switches to be upside down (so when you think you're set to ch1 it's actually set to ch511 Link to comment Share on other sites More sharing options...
dmarin Posted January 3, 2019 Author Share Posted January 3, 2019 This par has a digital screen and I set it to d001 channel Link to comment Share on other sites More sharing options...
timsabre Posted January 3, 2019 Share Posted January 3, 2019 This par has a digital screen and I set it to d001 channel Hmmm. Are you sure that is right, on my chinese par cans the correct setting for DMX is A001, they're all different though. Link to comment Share on other sites More sharing options...
dmarin Posted January 3, 2019 Author Share Posted January 3, 2019 Yes "manual" says D001-D512 DMX mode Link to comment Share on other sites More sharing options...
p.k.roberts Posted January 3, 2019 Share Posted January 3, 2019 It's also not unknown for some of the less expensive DMX gear to have pins 2 and 3 reversed, so that might be worth trying as well. Link to comment Share on other sites More sharing options...
kgallen Posted January 3, 2019 Share Posted January 3, 2019 Ch1: BrightnessCh2: RCh3: GCh4:BCh5: StrobeCh6: PulseCh7: Colors shade Set Ch1=50% (128) and Ch2=128 then have a play around with Ch5 and Ch6 to see if you can get red light out of the thing. It's possible the Strobe channel has the equivalent of "shutter open/close" functionality. If you suspect the DMX address (sorry I was a bit slow "Saving" my post and the thread had moved on quickly), then set also Ch5=128 and change the DIP switches until you get a flickering red. Link to comment Share on other sites More sharing options...
dmarin Posted January 3, 2019 Author Share Posted January 3, 2019 how can I solve this my friend? I mean the reversed pins Link to comment Share on other sites More sharing options...
kgallen Posted January 3, 2019 Share Posted January 3, 2019 how can I solve this my friend? I mean the reversed pins I must admit I've not ever come across XLR pin phase swap with my motley range of fixtures, but unless you want to resolder one of your leads, something like this: https://cpc.farnell.com/pro-signal/psg01351/adaptor-phase-reverse/dp/AV14519?st=phase%20reverse Link to comment Share on other sites More sharing options...
dmarin Posted January 3, 2019 Author Share Posted January 3, 2019 @kgallen My friend with your suggestion the par lights eventually red one time and no more. I move the faders but no other response Link to comment Share on other sites More sharing options...
timsabre Posted January 3, 2019 Share Posted January 3, 2019 You said the controller had a switch to reverse the polarity... Link to comment Share on other sites More sharing options...
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