Technical, Techniques, Hints, and Tips > Radio Equipment

FlySky FS-R6B problem

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drawknife:
Hi, I purchased 3 FlySky FS-R6B receivers quite a while ago from an internet site. I have only just started to use them but I find they all burn out the servo that is connected to channel 2. Channel 1 and 3 work fine for speed and rudder but I want to use channel 2 to switch on lights etc.. Have I purchased 3 dud receivers or can someone suggest a reason why this could be happening. I have burned out 4 mini servos to date (in the last 5 days). Any help will be greatly appreciated. Thank you.

HMS Invisible:
You are burning out the servos because you are not allowing them free movement.
The receiver shares its two-wire connection to 5 volts or to a battery & a position signal via the orange or white wire.
https://m.youtube.com/results?sp=mAEA&search_query=how+rc+servo+works

drawknife:
The servos are not connected to anything. I have plugged them into channel 2 to test them and after about 2 minutes they stop working. They feel warm to the touch.

HMS Invisible:

--- Quote from: drawknife on December 20, 2023, 05:03:47 pm ---The receivers are not connected to anything. I have plugged them into channel 2 to test them and after about 2 minutes they stop working. They feel warm to the touch.

--- End quote ---
The logical inference from your opening post is channel 2 servo burns out due to "binding" where one connected to a rudder tiller does not.

This still stands:

--- Quote ---The receiver shares its two-wire connection to 5 volts or to a battery & a position signal via the orange or white wire.
--- End quote ---
The receiver can't kill a servo with an internal wiring fault if the servo plug is correctly connected or rotated such that signal white(orange) & black are swapped but red maintained. It can share power and command the servo to obtain a position.
What is the voltage and battery type (or what supplies power to) the receiver?

unbuiltnautilus:
It feels more likely that it is a bad batch of servos. Are they branded ones or transparent blue ones for a couple of quid each?! Also, is the steering servo the same type as the ones that are failing?

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