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  1. #1
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    RX flashes red when i turn my E-revo hard even when the car is not moving

    All

    I have a e-revo that was upgraded to the castle and mamba waterproof motor and esc along with going to 1 Savox servo instead of the standard 2 servo, lots of torque in that servo!

    Everything is working, but if I turn the wheels fast with the TX the RX flashes red (almost looks like if it sees a heavy load, it flashes)

    Does anyone have a TQi Rx led light guide to tell me what the heck is going on?

    Thanks!!

  2. #2
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    When the car is not moving and you are steering, that is when the servo is drawing the most amperage. More than likely what you are experiencing is brown outs from the BEC not providing enough juice to keep things going. One way to help with this issue is to increase BEC voltage from the stock 5.5 volts up to 6 volts. If that does not solve it you may need a stand alone BEC to feed the hungry Savox servo.
    Whatever it is I just typed... could be wrong.

  3. #3
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    It is clear that the s Savox SA-1230 sg servo is causing the issue, I put in a new servo and same issue! I agreed the reason for the flashing led is a brown out.


    It appears the servo is drawing way too much amps causing my esc fan to stop working


    The question is why is this servo causing me issues.

    I did up my voltage to 6 vdc and still

    It works fine on a 6 volt servo checker????

  4. #4
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    I am going to try a glitch buster this video shows my exact issue

    http://www.youtube.com/watch?v=9svdZ...layer_embedded

    I can't be the castle mamba monsters can't handle the Savox servo

  5. #5
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    Is there any binding in your steering?

    Savox servos are known amp hogs... it could be the servo.

    CC ESC's don't have the best BEC's... it is almost as if they want you to buy their stand alone BEC. lol
    Whatever it is I just typed... could be wrong.

  6. #6
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    No binding, they will not work with nothing connected to them. (both servos, both cars)

    Looks like the Castle bec is NOT designed for bigger servos, and the Savox servos suck amps! That is a great reason never to use them in my big planes!

    Hopefully the glitch buster solves the issues!

  7. #7
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    Hopefully... you can make your own out of a large capacitor and a servo connector extension.
    Whatever it is I just typed... could be wrong.

  8. #8
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    So here is what I found out

    max current draw was about 1.49 amps, that is with the worst case scenario (tires held down and servo stalled)

    I put a capacitor on the feed and the problem went away, smooth as silk and no brown outs

    The issue is with the Castle Mamba Monster ESC - it does not like that servo. According to Castle they think they are one of the worst servos out there for power consumption! I say bad design on Castles part! (FYI I called them and they said buy one of their BEC's Ba#**$_)@ds!!

  9. #9
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    What were you measuring draw with?
    Whatever it is I just typed... could be wrong.

  10. #10
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    I used a watts up meter, made a quick set of adapters, but they work great

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