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Uncontrollable B4.1 - 12/19/2011 10:09 PM   
DriftingFast


 

Posts: 148
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Last Login: 8/28/2012
From: Atlanta, GA, USA
Status: offline 		1 Week ago I upgraded both of my cars (TC4 and B4.1) to 2.4ghz. Since then I haven't been able to drive it because it goes backwards when I try to go forwards, vice versa, and it goes faster backwards than forwards. However I didn't have any trouble with my TC4.

Electronics
XP Digital SC450-BL ESC
Reedy 3300kV Brushless Motor
Futaba 4PL Transmitter
Futaba R2104GF Receiver

Possible Problems
I had to unplug the motor wires to clean the car.
The receiver/transmitter has to be setup.

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RE: Uncontrollable B4.1 - 12/19/2011 10:26 PM   
nitrosportsandrunner



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Status: offline 		sounds like you just need to swap 2 of the motor wires.

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RE: Uncontrollable B4.1 - 12/19/2011 10:29 PM   
DriftingFast


 

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Status: offline 		The thing is that I do not know what order I should put them in; they came unlabeled.

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RE: Uncontrollable B4.1 - 12/19/2011 10:43 PM   
DriftingFast


 

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Status: offline 		Ok...You were right...but it still goes faster backwards than forwards.

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RE: Uncontrollable B4.1 - 12/20/2011 12:23 AM   
nitrosportsandrunner



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quote:

ORIGINAL: DriftingFast

Ok...You were right...but it still goes faster backwards than forwards.

OK, put the motor wires back the way they were....
then...
change the reversing switch on the radio(the throttle channel) then recalibrate the ESC to the radio.

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RE: Uncontrollable B4.1 - 12/20/2011 1:24 AM   
dragnse7en



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quote:

ORIGINAL: nitrosportsandrunner


quote:

ORIGINAL: DriftingFast

Ok...You were right...but it still goes faster backwards than forwards.

OK, put the motor wires back the way they were....
then...
change the reversing switch on the radio(the throttle channel) then recalibrate the ESC to the radio.


+1 - You beat me to the punch; I was going to say the same thing



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RE: Uncontrollable B4.1 - 12/20/2011 7:01 PM   
DriftingFast


 

Posts: 148
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quote:

ORIGINAL: nitrosportsandrunner


quote:

ORIGINAL: DriftingFast

Ok...You were right...but it still goes faster backwards than forwards.

OK, put the motor wires back the way they were....
then...
change the reversing switch on the radio(the throttle channel) then recalibrate the ESC to the radio.

I already tried that, it won't start if I do that. I have to have the throttle on normal, turn it on, and then put the throttle mode in reverse.

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RE: Uncontrollable B4.1 - 12/20/2011 7:07 PM   
nitrosportsandrunner



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From: skowhegan, ME, USA
Status: offline 		some ESC's only like the transmitter in norm or revs. sounds like yours likes normal.

so, i take it if you put the tx in norm, and program the ESC thats when you get the truck going backwards instead of forwards?


typically when you have an issue like yours its solved either by programing the ESC with the Tx in the opposite setting from what it was in...or just swapping 2 of the motor wires.

some ESC's have a "motor direction" setting. maybe yours does and it needs to be changed?

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RE: Uncontrollable B4.1 - 12/20/2011 7:08 PM   
ThunderbirdJunkie



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Status: offline 		You have to recalibrate the ESC if you reverse your throttle channel, as nitrosportsandrunner clearly stated.

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RE: Uncontrollable B4.1 - 12/20/2011 7:08 PM   
DriftingFast


 

Posts: 148
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Status: offline 		I fixed it. First I reversed the throttle, then I reversed the steering, and last but not least I had to re-calibrate the throttle settings.

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