Shop our Airplanes Products Drone Products Sales
Thread Tools
Sep 16, 2012, 10:29 AM
Registered User
cmidnight's Avatar
Discussion

Issues with AR400


First, I would like to say that I am returning to the hobby after 30 years and cannot believe how things have changed! Great to be back!

I have a new Spektrum AR400 Rx and a DX7s. All seems to go fine during the bind process (Rx light flash, turns solid, Tx reading well), but there does not seem to be the connection with the channels. No control surface movement, no throttle, etc. Also, motor has continuous beep.

I have tried other Rx's with three different motors, ESC combos and this same thing occurs. Batts are charged (i am not using a seperat Rx Battery could this be the prob?) I know that the ESC has internal BEC, as I another of the same.

My only conclusion is the Rx is bad.

Hoping someone might help
Sign up now
to remove ads between posts
Sep 16, 2012, 11:30 AM
Registered User
lcm1977's Avatar
Did you do the procedure to bind the TX to the RX?
Sep 16, 2012, 11:42 AM
Registered User
xmech2k's Avatar
I'm stumped. The fact that you get lights on the rx confirms you at least could not have reversed the polarity of the throttle connection.

One thing comes to mind. The esc wants to see a low enough throttle position before it arms. It's possible either the throttle trim has to be lowered. Or even the throttle channel needs to be reversed.

That would not explain the other channels not functioning though. I would double check you have the servo wires plugged in the right way.
Sep 16, 2012, 12:20 PM
Registered User
Quote:
Originally Posted by cmidnight
I have tried other Rx's with three different motors, ESC combos and this same thing occurs.
If you've tried several other receivers and you get the same problem every time why do you conclude that one particular AR400 receiver is bad ? It sounds to me a lot more like a fault with the transmitter or the technique you're using.

Are you sure the ESC is plugged into the throttle position ? Do you have the TX throttle AND TRIM low when you're doing the binding ? After the bind have you disconnected the ESC battery to fix the bind ? The continuous beep is usually the ESC telling you there's no signal from the RX and that's often because the ESC is plugged into something like a battery slot instead of the throttle slot.

Steve
Sep 16, 2012, 12:52 PM
Registered User
cmidnight's Avatar
Quote:
Originally Posted by cmidnight

I have tried other Rx's with three different motors, ESC combos and this same thing occurs.
My apologies on the typo! What I meant to say was that I have tried THIS Rx with the other combos and the same thing occurs. Also, I have no problem with the other Rx's binding to three different planes. It just seems to be this AR400.
Sep 16, 2012, 01:04 PM
Registered User
Babadush's Avatar
Quote:
Originally Posted by cmidnight
My apologies on the typo! What I meant to say was that I have tried THIS Rx with the other combos and the same thing occurs. Also, I have no problem with the other Rx's binding to three different planes. It just seems to be this AR400.
Does this RX have a satellite? If so Check the connections where the satellite connects to the rx. My insulation moved back a bit, the signal and ground wires were touching. This caused the same exact problem as yours. I put shrink wrap on both wires and now it works.
Sep 16, 2012, 01:12 PM
Registered User
cmidnight's Avatar
No, no sat.
Sep 16, 2012, 01:17 PM
Registered User
pda4you's Avatar
It is likely a dud - send it in they will send you a new one. They are really good about that.

I have 5 of them and this is a fluke.

Mike
Sep 16, 2012, 01:35 PM
Registered User
Babadush's Avatar
Quote:
Originally Posted by cmidnight
No, no sat.
That's unfortunate then. Bad luck.
Sep 16, 2012, 01:44 PM
Registered User
cmidnight's Avatar
That's what I thought! Just hoping that I may have missed something.

Thanks all for your input.

Glad to be part of the forum.
Sep 16, 2012, 04:58 PM
Registered User
Ask here


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Help! Full throttle issue with servos acting up!! VIDEOPRO Power Systems 0 Jun 20, 2012 06:19 PM
Discussion Issues glitches with DJI Naza alexedit Multirotor Drone Talk 8 Jun 16, 2012 05:41 PM
Discussion Real issues with KK v5.5 blackboard and Xcopter setup with JR radio chopperaddict Multirotor Drone Talk 1 May 23, 2012 04:16 AM
Help! DJI Naza wind issue!!!! (help needed with throttle up issue in wind) Arxangel Multirotor Drone Talk 11 Mar 07, 2012 01:47 AM