[roshan]

i have a flysky fs-ct6b receiver and when i connect it to the cc3d board with the given cable it wont turn on!!
i know that the receiver works because ive worked on it with my kk board and was working fine with it!
dont know why the receivers not lighting up!!
hake i done any mistakes in the way it should be wired!?

[f5soh]

Did you connect the battery ?
USB only power the board, not the accessories connected.

[roshan]

i have connected the battery and turned on the transmitter as well!!

[f5soh]

Be sure the receiver connector is plugged correctly, seems not fully inside socket.
Check first if one pin is not bended inside.

Since the board is powered externally the receiver port will receive +5v as well.
Measure voltage between black and red wires.