Recent content by goats

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    Control/Dimming Leviton D4DMX - DMX doesn't work

    I wouldn't rule it out. With the display, sometimes when it is turned on, part of the 'A' in the address display is off. There could be others. Seems to do it every once in a while. Usually, powering it off and on will fix it. I read somewhere about a test feature, which I tried and it said...
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    These are good points. I'll do a little more investigating before trying anything drastic. I contacted Leviton and they will do some basic troubleshooting over the phone. I'll try that next. I might look closer at the circuit board to see what components are in the input section and what else...
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    My mistake... it's 81487. Octopart looks pretty cool; Here's the link to this chip.
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    That sounds like an adventure for sure. It also seems to be the next step in the saga if I want this thing to work. I haven't taken the board out to trace where the signal goes, but the chip seems to be the most likely failure point.
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    This one appears to use an 81847 SOIC IC. Considering how cheap they are, I might try replacing it, even though soldering a surface mount chip doesn't sound too fun. That being said, is the RS485 chip the likely failure point, or do other parts of the input section usually fail at the same time...
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    I have yet to try swapping the polarity. I'll do that tonight and see what happens. Assuming that's not it, any idea what the repair cost would be? I may poke around and see what I can do. Considering it's price, I don't want to pay more to fix it than I did to buy it...
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    It has 3 pin connecters for both systems. Here's a picture. Considering the LED won't light and it is completely unresponsive over DMX, yet otherwise works fine, I'm suspecting maybe someone connected something which burned out the DMX input... Does that sound likely? If so, what would the...
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    It is not new, and it has DMX and MicroPlex connections. Nothing appears to be missing inside. I was hoping for something simple, like the connector disconnected, but no luck. Inside there is one large chip, which I assume is the main controller for the unit. There are smaller, surface mount...
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    Control/Dimming Leviton D4DMX - DMX doesn't work

    I have a Leviton D4DMX with 3-pin connectors and no matter what I try, it is unresponsive to DMX. Also, sometimes the LED display leaves off some of the segments.I've verified that I'm using the DMX input with actual DMX cables. I tried it on two different working DMX sources with no luck. I...
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