CHAD VALLI Posted October 29, 2009 Share Posted October 29, 2009 Another issue has arisen regarding my LIGHTSKY BL150[/b] moving heads They work great on my 24 channel desk, but when connected to a frog 88 theatre desk we have no control at all. The red led flashes to indicate they are recieving a signal but nothing else. We thought it could be a polarity problem, but on closer inspection they appear the same. Any thoughts? Many thanks Andy Link to comment Share on other sites More sharing options...
Brian Posted October 29, 2009 Share Posted October 29, 2009 Is this a Frog or a Fat Frog? Can you control them using just the channel faders? Link to comment Share on other sites More sharing options...
CHAD VALLI Posted October 29, 2009 Author Share Posted October 29, 2009 Is this a Frog or a Fat Frog? Can you control them using just the channel faders? Hi Sorry Fat Frog, Nothing seemed to fire them up. Could the desk need updating or may it be something really obvious Thanks Link to comment Share on other sites More sharing options...
LXbydesign Posted October 29, 2009 Share Posted October 29, 2009 Do you have the correct personality loaded in on the fixture file desk > fixtures patched correctly? If you have a DMX signal ok on the fixture, then its ether the patch and/or fixture personality Link to comment Share on other sites More sharing options...
p.k.roberts Posted October 29, 2009 Share Posted October 29, 2009 Is the DMX input on your moving heads via a three pin or 5 pin pin connector? If it's a three pin, are you really sure it's not a polarity issue? I can assure you from bitter past experience that a DMX Present LED may well mean absolutely nothing wrt the DMX polarity being correct. Link to comment Share on other sites More sharing options...
CHAD VALLI Posted October 29, 2009 Author Share Posted October 29, 2009 Is the DMX input on your moving heads via a three pin or 5 pin pin connector? If it's a three pin, are you really sure it's not a polarity issue? I can assure you from bitter past experience that a DMX Present LED may well mean absolutely nothing wrt the DMX polarity being correct. Hi, All my Lights are 3 pin including the movers. Here's what ive just done. I've connected my LED par 64's and the moving heads to my 24 channel JB systems desk. This has a polarity switch to the rear. I have full control of everything with the switch set at 1:Ground 2:Data- 3:Data+ which should be standard arrangement. If I flick the switch to reverse the polarity the lights dont respond. This polarity is the same as the desk so I'll research a little on the frog desk side of things Many Thanks Andy Link to comment Share on other sites More sharing options...
Dj Dunc Posted October 29, 2009 Share Posted October 29, 2009 Can you confirm that you correctly have uploaded the fixtures into your showfile and also that you have addressed said moving heads to the correct channel? Link to comment Share on other sites More sharing options...
vaquero Posted October 29, 2009 Share Posted October 29, 2009 Can you confirm that you correctly have uploaded the fixtures into your showfile and also that you have addressed said moving heads to the correct channel? We currently don't have the fixture profile so I am not using the moving light section of the board, however in the meantime I should be able to operate this from the faders that are assigned to the correct midi channels but so far, nothing is happening. All the connections appear to be good, any clues? Ta, Ian. Link to comment Share on other sites More sharing options...
Dj Dunc Posted October 29, 2009 Share Posted October 29, 2009 by midi channels, do you mean DMX? Midi is something far different. (though also present on a desk) Link to comment Share on other sites More sharing options...
aidso Posted October 30, 2009 Share Posted October 30, 2009 do a factory reset on the desk and a 1-1 DMX patch. then address one of the heads to channel 1 and connect it direclty to the desk. if it works then try adding a led in on the first channel after the heads. Link to comment Share on other sites More sharing options...
david.elsbury Posted October 30, 2009 Share Posted October 30, 2009 How is "adding a led" going to help matters? Care to be a bit more specific please? Link to comment Share on other sites More sharing options...
GRisdale Posted October 30, 2009 Share Posted October 30, 2009 To give aidso the benefit of the doubt, perhaps he means try putting another fixture (such as the LED pars mentioned) onto the same DMX chain to see if anything is leaving the desk (if this hasn't been done already), though personally I would address one to the same address as the pan and tilt of the movers... I'll assume that you've made sure the GM and preset faders are at full, and that the DBO switch is off (since you've patched them as a big load of intensities, rather than proper fixtures, they won't move or do anything at all if the masters are down). Do the fixtures respond at all when the DMX line from the desk is plugged in? Gareth. A concurrent post has been automatically merged from this point on. :** laughs out loud **: Lightsky sales motto: "The quality comes from nicety" :) And let that be a lesson to you Martin and Varilite - stop investing in research and high quality materials, it's nicety that'll make it all work! ...or not. Link to comment Share on other sites More sharing options...
vaquero Posted October 31, 2009 Share Posted October 31, 2009 To give aidso the benefit of the doubt, perhaps he means try putting another fixture (such as the LED pars mentioned) onto the same DMX chain to see if anything is leaving the desk (if this hasn't been done already), though personally I would address one to the same address as the pan and tilt of the movers... I'll assume that you've made sure the GM and preset faders are at full, and that the DBO switch is off (since you've patched them as a big load of intensities, rather than proper fixtures, they won't move or do anything at all if the masters are down). Do the fixtures respond at all when the DMX line from the desk is plugged in? Gareth. A concurrent post has been automatically merged from this point on. :** laughs out loud **: Lightsky sales motto: "The quality comes from nicety" :) And let that be a lesson to you Martin and Varilite - stop investing in research and high quality materials, it's nicety that'll make it all work! ...or not. Just to clarify a couple of points, firstly, yes I meant DMX not MIDI (what a twit), I was working in my studio at the time of the post !!! I know there is something coming from the desk as I was operating other lighting at the same time. I tried the unit on a few different channels and even had the moving light and a generic light on the same channel at one point and the generic worked fine so all the 'easy to miss' bits like DBO etc were all ok. It really is an odd one. Thanks for all the help so far :) Ian Link to comment Share on other sites More sharing options...
Ynot Posted October 31, 2009 Share Posted October 31, 2009 To summarise the fault finding on a DMX setup (others may dispute the order, but that's academic): Cables: Are all cables OK with no breaks?Cables: Have you PROVED there isn't a reversal by inserting a known good reveral cable/adapter?Desk: Is the correct fixture profile set on the desk and any mode options for them correct? (eg old Mac 250s have Modes 1 thru 4, Entours and others have 32 bit and 32 bit extended modes). I don't know your fixtures, so can't comment directly on that.Desk: If no fixture, try the 1-1 patch option as above to prove if it can talk to even 1 fixture. Oh - and can we assume that Chadvalli and Vaquero are from the same venue, as you're both replying as if you are...;-) Link to comment Share on other sites More sharing options...
HobitLight Posted October 31, 2009 Share Posted October 31, 2009 Entours and others have 32 bit and 32 bit extended modes[pedantic]It's actually 16 bit (I think :S)[/pedantic] Link to comment Share on other sites More sharing options...
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