Junk Set This is a junk set of a SANWA MX-6 radio transmitter and an RX-391 receiver. Suddenly, the throttle only moves either forward or backward, and the steering range of motion has decreased. I am unable to fix it, as I don't know if it's a malfunction or a setting issue. I will sell it to someone who understands it's a junk item. - Model: MX-6 - Receiver: RX-391 - Brand: SANWA Thank you for looking.