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KK2 Mini display goes off after connecting to receiver


Junior Member
Hi there,
i got a strange issue. If i connect my kk2 mini board from pin thr,v+ and ground to channel 3 of my receiver the board goes off (or maybe just the screen - not sure). Have you got an idea what i have done wrong here?
thr is connected to signal, v+ to power and gnd to ground. If i unplug the connector the board starts.
I use a Turnigy 9x receiver.

Thank you
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