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Old 08-11-2005, 09:26 AM   #1
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Default Glitching when I turn the wheel

I have a QC2, Airtronics 3-ch receiver, and a JR 4750, and whenever I twitch the wheel really fast, or let go of it and the wheel bounces back and forth a little bit, the motor jumps and sometimes the servo goes screwy. I've noticed on my Hitec receiver that the power light dims a bit when the glitching happens.

I've tried the 945MG servo with the same results, and it happens with or without the personal transponder.

I can move the wheel slowly no problem, it's just with sudden movements, or sometimes when I take a hit on the boards.

Now, I've had to replace the servo lead on my servo and QC2, but I've made sure the connections are solid and the wires touch directly.

Is it the ESC not supplying enough power to prevent glitching, or the servo for taking too much current?

Thanks for your time,
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Old 08-11-2005, 11:19 AM   #2
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Old 08-11-2005, 11:25 AM   #3
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wow, as a 1st post that is truely moronic.

I beleive there are issues with the Q2 and certain servos that draw high current. I think if you search this forum you will find some solutions.
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Old 08-11-2005, 12:29 PM   #4
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Thanks, I found some interesting reading about receiver capacitors. Found myself a 1000uF 6.3V cap in my box, soldered to the leads on my QC2, and voila! Glitch is gone.. Voltage didn't drop below 5.3 from 5.5V when I thrashed the steering. My transponder should be a little more reliable too. I thought that I had put my PT too close to the motor, losing 5 laps last race. I could account for them in the laptime summary and everything. But, now I think it's more this glitching causing the lost laps.

Seems like the common denominator is the QC2 among most of what I've read, as well as KO Servos, but it's more the QC2.. I plugged in my Runner Plus, no problems at all.. ohwell, the cap is small and lightweight, and life will go on, but I'll be weary about their new QC3 until they can get this problem remedied.
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