Trackspot DMX Problem

Hi Everyone. I am new to the forum. I just purchased some trackspots and one is not working properly. Hopefully you can help me. I have experience programming DMX lights and also experience working with electronics (lighting, amps, etc), so, I tried all the simple troubleshooting.

Anyways...the trackspot will not respond to DMX. I have the personality dip's on 3 and 5. I have tried several DMX channels and no luck. The unit powers up, it works in personality 1 (test mode). The light strikes, the gobos rotate and stop, mirror movement is fine, shutter is fine. It simply will not respond to DMX when I take it off of test and put it on the high resolution DMX settings, or the low setting for that matter.

I saw a post in here somewhere referring to the personality IC ( Integrated circuit). I am afraid this could be the problem. Is it? Any ideas?

The circuit board is a green board and the QC sticker says 11/5/96. I do not see the F2 ad F3 fuses anywhere on the circuit board like the HES manual suggests (the manual says F2 and F3 fuses would be the cause for no respose to data signal)

Please help. Thanks for your time!
Shane
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  • 0
    Now that you say that about the two diodes between the XLRs - This version does have them I remember seeing them (I am at work right now not at home). The two silver diodes looked a little funny at the base, as if maybe they were broken or burned. The other three lights I have do not have these diodes so I couldn't compare.

    What are the specs on these diodes? If I check with my meter what should it read?
    I could replace them and that would be an easy fix.


    I will also check the dip switches but I have a feeling thats not the problem.

    Thanks so much EVERYONE for all your help.
    I never knew there were people out there so willing to help.

    Thanks,
    Shane
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  • 0
    Now that you say that about the two diodes between the XLRs - This version does have them I remember seeing them (I am at work right now not at home). The two silver diodes looked a little funny at the base, as if maybe they were broken or burned. The other three lights I have do not have these diodes so I couldn't compare.

    What are the specs on these diodes? If I check with my meter what should it read?
    I could replace them and that would be an easy fix.


    I will also check the dip switches but I have a feeling thats not the problem.

    Thanks so much EVERYONE for all your help.
    I never knew there were people out there so willing to help.

    Thanks,
    Shane
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