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  1. #1
    RC Enthusiast
    Join Date
    Jan 2015
    Posts
    21

    Mamba X - Red Blinking Light, No Sounds, Not Arming

    Swapped my (working just fine) Mamba X / 2400KV system from one Slash 4x4 into another, and now, the ESC does not arm (no sounds / beeps), just sits there, with a red blinking light. According to the manual:

    ** Flashing Green OR Red = Speed control has not been calibrated and is not armed; or throttle sub-trim is not at 0. **

    I've reset the TQi radio system, checked TraxxasLink, and throttle is set to 100%, sub trim to 0.
    I'm plugged into receive channel 2, the correct way.

    If I plug the ESC into the second channel 1, it arms fine, and will drive the motor, albeit while turning the wheels.

    It almost looks like channel 2 is toast on the receiver, and yet all the other channels work fine. Just prior to putting the mamba x combo in, this same receive was running an SW4 with a Hobbywing motor.

    Anyone have any thoughts as to what I'm doing wrong? Thanks!

  2. #2
    RC Racer
    Join Date
    Jul 2017
    Posts
    221
    I've had the same thing happen. It was the channel two on my reciver. Had to get a new receiver

    Sent from my SM-N960U using Tapatalk

  3. #3
    RC Champion nickruger's Avatar
    Join Date
    Jun 2017
    Location
    Ohio
    Posts
    1,161
    Yep that sounds typical of a reciever failure. Do you have another reciever you can test it out on just to confirm. I swapped out a servo once, everything was fine when I took it apart. Put it back together with new servo and reciever was dead. Who knows.

    Sent from my SM-N960U using Tapatalk

  4. #4
    RC Enthusiast
    Join Date
    Jan 2015
    Posts
    21
    Yah, I swapped in an old 3 channel receiver and the mamba works fine. Going to order a replacement. Thanks for the feedback.

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