hi tec servos hs-645mg - RCCanada - Canada Radio Controlled Hobby Forum
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Old 03-07-2008, 11:36 PM   #1
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hi tec servos hs-645mg

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the steering on my t-maxx3.3 is crappy under load. So i bought a hitec hs-645mg servo to correct it, but when i try to install it the optidrive sensor light comes on red. why is this? can anyone help me? i have the orginal remote and reciver in use in the truck
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Old 03-07-2008, 11:49 PM   #2
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i would go through the process of setting up your opti drive turn on radio and truck and then push and hold button on your opti drive till it flashes. then let go of the button on your opti drive then give your controler full throttle and hold there and wait for flash on opti drive then let it go. it will flash again and turn on and all should be ok after that.ive had the same issue on my 2 revos also. and this fixed the problems.i hope this helps you.
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Old 03-08-2008, 11:01 PM   #3
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Check that you plugged in the servo connections back to where you removed them sounds like you might of mixed up the connections.
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