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Thread: Red pixels

  1. #1
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    Default Red pixels

    I'm testing pixels that have recently arrived in the mail. They are soldered to RAy Wu's 3 pin pig tails and plugged into a falcon F16v2. I'm using 12v power supplies and 12v pixels. When connected to the board and the controller plugged in, all pixels are a very dim red/pink. If I use the test mode on the controller, they seem to function as normal but once I stop they go back to the red. I have double checked the connections and power is to power ect. I double checked Ray's store as well. Any ideas?

    Edit: The picture below is connected with butt connectors because the first set wasn't working. I didn't want to solder those as I was looking for a quick connection. However, same results.
    IMG_1533.jpg


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    Last edited by slim00209; 03-20-2017 at 01:21 AM.

  2. #2
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    Default Re: Red pixels

    This typically happens when power supply voltage is too high, have you measured that?

  3. #3
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    Default Re: Red pixels

    That was exactly it. An xlight Facebook member had the same idea. I was running 12.10 volts. Now down to 11.80 and it's fixed. Thank you.


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  4. #4
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    Default Re: Red pixels

    That must be a quirk with the controller. I have had pixels hooked directly to a PSU that was outputting 13 volts and never had the red tint like that.

  5. #5
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    Default Re: Red pixels

    Quote Originally Posted by jerry72 View Post
    That must be a quirk with the controller. I have had pixels hooked directly to a PSU that was outputting 13 volts and never had the red tint like that.
    If I recall correctly this happens on pixels that use resisters to drop the voltage. This was a widespread issue a year or two ago.

    Now most pixels have a regulator instead of resisters to combat this issue.

    Also this might not show up on your pixels if there is enough voltage drop between your power source and pixels, i.e. Using multiple extensions. I suppose this would also happen if your controller had a voltage regulator for its outputs, but I don't have any controllers that do that.

  6. #6
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    Default Re: Red pixels

    Quote Originally Posted by jerry72 View Post
    That must be a quirk with the controller. I have had pixels hooked directly to a PSU that was outputting 13 volts and never had the red tint like that.
    Could be, i have about 5 feet from the controller and the string and the PSU.

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