Ds285 problem

[radlo13]

I just bought 3 ds285 for my trex with a dx7 radio and when i hooked them up they all make a rattling noise. What does this mean? My e-sky servos dont make the noise but these do is it because they are digital. I'm using a align 35x esc.


Thx
Radley

[radlo13]

they are not hooked up to anything yet just plugged in is this noise normal?

[Pinecone]

Digital servos are always moving a bit, that may be what you are hearing. most times it is described as buzzing.