Hi, I dont know what the problem is. The servo I have is a
HS-81MG for my HPI Micro, it was fine when I had my Futaba 3PDF radio with Quantum Sport and stock chassis.
Now my set up is Ko Propo MarsR, Quantum Competition, Penguin r/c carbon chassis.
Nothin is wrong with the carbon chassis because I took the servo out and try it too. Doesn't work...

The problem is that when i turn the radio on, then the ESC. The servo starts to vibrate[Kinda like a buzzing noise], it stops after like 10 sec and it works. Sometimes it make some sounds too.
I really dont know what's wrong with it.

My radio's battery and the Micro pack is all charged up.

Anyone could help me on this???

?????

swap ch. 1 & 2 on the Rx around and see what it does?

Just did that and still does not work...

are the pins correct for the Ko Propo Rx?

Of course...anything else?

Does this happen anytime or after you have peaked your battery?


Gary

Gary,
It happens whenever I turn the radio on then the ESC, the servo would vibrate alittle then stop...then vibrate again and stop...it keeps on doing this...