dx7 servos twitch

[gladish]

I've been setting my heli up by adding the servos. I'm using a dx-7 with the receiver battery plugged in. ESC is not connected. As soon as I plug it in, the servo(s) begin to make a twitching sound. They don't appear to be moving at all, just making a low jittery noise. Radio is brand new as are the servos. Servos are jr ds285.

[vapochilled]

which heli?

[Jermo]

sounds like the battery needs charging or the servo's are under load. Just a guess based on your post.
Jermo

[gladish]

which heli?
trex-450s

[gladish]

sounds like the battery needs charging or the servo's are under load. Just a guess based on your post.
Jermo


one thing I forgot to mention was the the twitching settles somewhat if I move the transmitter away from the receiver, but does not completely stop. When I move it in again, it picks back up. We're talking about two feet here. This is the first charge on the receiver and transmitter batteries. I left them plugged in overnight. I'll give the recevier batteriers another charge.

[Jermo]

I wonder if RF is getting into the servo's? or the BEC.. that's what it sounds like.
Jermo

[vapochilled]

well they are digi servos, so they will "hum" and as you don't see any movement, I'd not worry. This is why a lot of people shy away from digi servos on cyclic, they do consume a little more juice due to the nature of the things.

[R-4-L]

I noticed the twitching while setting a friend's heli with DX7, switched to a charged battery and its all gone.. so it's most likely a discharged battery..