JR X-378 probem!

Did you buy your radio new? If so, did it come with the receiver and with crystals installed?

Futaba Rx's are negative shift so they wouldnt work with a JR Tx , right ? Maybe its an Airtronics Rx and theyre different?

I have got a JR X378 tx and I am successfully using it with a Futaba receiver with no problems. The only issue I ever had was the crystals, i.e you can't use a JR crystal in a futaba Rx an vice versa.

What it may be, is that the channel numbers are just different on JR and Futaba sets meaning that Channel 1 on the JR Tx is throttle for example, and on the Futaba Tx it is aileron. This shouldn't be a problem though! Just connect a servo to each receiver channel and test which stick movement controls the servo, then just label up the receiver.

I am also using a Sanwa receiver with the JR Tx and this too works well. I did have to perform a soldering mod to the sanwa rx though because the power pins are the opposite way round to Futaba. It does work though, I use an 8ch version in my Twinstar.

Andy Peaple

The pulse direction thing between JR and Futaba is unique to America I think. Here in Australia people commonly mix Futaba and JR gear.

Russ.