Just bought a new transmitter from Hobby Partz. (Put the batteries in it. Fully charged.) Made sure all the switches where in the right positions. Turned it on, it just beeps, and display "switch error" message? Switches are all forward. So does this mean this transmitter is defective?

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That's how this transmitter is supposed to work. (All toggles forward, away from the operator.) All though I did try the switches down, throttle etc., and in other position's with no luck. Just beeped and flashed "switch error". After several emails to Hobby Partz, they sent an RMA number., an and I sent the transmitter back for a replacement. But I got stuck paying the return postage, so the price for this thing isn't a bargain anymore...

It's very surprising a Tx would require the throttle to be 100% when turning it on. Normally, it's all switches back (away from operator) and throttle at zero, not max (for obvious reasons).

I had the same problem on my 2nd set FS TH9x (FlySky 2013 batch).  The problem was one of the switches bottom switch contact was not fully released (rnot etracted fully way from the user).  Need to push hard a bit or replace with new ones.  I replaced my throttle hold switch due to that.

That's what is in my previous post. The drone didn't have a battery in it. So there was no danger of the motors starting with the throttle up. (Besides the props where off it and it was in another room.)

Mailman had just delivered it, brought it in the house and opened it, put the batteries in it, turned it on, started beeping and flashing "SWITCH ERROR". The switches where all away from me, and I did try arming the transmitter with the throttle down. The throttle wasn't active, or, any of the switches. (They were all dead sticks.) No matter what position the switches where in, the transmitter just beeped and flashed, "SWITCH ERROR".

The transmitter had been hooked up to the Mission Planner on the computer trying to configure it? But since the transmitter could not be booted up, it didn't matter where the switches where, up, down, sideways. So I sent it back and Hobby Partz at my expense since it was under warranty, only had it two days and they are supposed to be sending me a replacement.

If the transmitter had been used I would have taken it apart and found the problem. But since it was under warranty I sent it back for a replacement.

If it wasn't brand new, (got it one day, sent it back the next), and under warranty, I would have taken it apart and found out what the problem was? I'm thinking about building my own transmitter now, winter project.

The 9x is known for having possible wiring/solder QC issues, and most recommend that you open it up to look for any obvious mistakes.

I have modded my 9xs so much, that I have gotten to know it inside and out, by heart. The first thing that I have changed was the screws to a more robust metal to metal upgrade, and then flashing the radio, adding 6 pos switch, then a thumb joystick to the back for pan&tilt, changing the battery system, adding a better usb programming mod, adding backlighting and a separate telemetry display, etc. (see SmartParts)
http://www.smartieparts.com/shop/index.php?main_page=index&cPat...

The list of possible mods is almost endless.

The point being, as you have found, it doesn't pay to be sending a $ 50 radio back for warrantee, when you can correct/change anything you want in this fabulous radio.

After all, this is a DIY community... plus it's fun!

I paid 89 bucks for it from Hobby Partz. (Free shipping.) Cost 13 bucks and some change to send it back to them. I'm going to build my own transmitter over the winter.

the throttle, absolutely positively needs to be down...

that said, it sounds like you tried that and everything else and sending it back is the only option, although I wouldnt get the same radio.. get store credit and buy a different radio...or step up to the 9xr pro so you dont have to mod it and you can flash it...

or get the spektrum... a lot of flight controllers are using onboard spektrum support now..

I had the switches every direction you could place them, up, down, sideways, the transmitter just wouldn't boot up. It kept flashing "Switch Error". I would have cracked the transmitter opened, and looked. But I decided to send it back instead.

I don't know if the one or more of the switches where bad? Or if the chip itself was bad in the transmitter?  I'll see what Hobby Partz is going to do when they get this one back? Ask me if I want another one, or something different? In the meantime I'll check out the 9XR Pro and Spektrum out... 

im a newbie.. now that i got that out of the way.. I also have only owned the 9xr style radio...  i bought it for the price point.. but, from what I can tell, this radio will do almost everything else other radios do, with very minor/limited differences...

I have been told repeatedly to get a different radio that cost 3-4 times as much, and those radios wont do what the 9xr radio will do...and those arent minor differences..

the radios now, are digital/computer controlled radios... they all do the same thing, maybe a little differently... but the final result needs to be the same, a pwm/cppm/s-bus signal .. how it gets there is different.. i think if I understand it properly...each radio will transmit the info via radio signal and to avoid crossing signals with other radios, the information is encrypted or coded to change in a specific protocol...  that protocol is what is important...as they need to match on the TX and RX side of your model...

the 9xr can use plug in modules... that is what calculates and applies the protocol before it is actually transmitted... so, you can have a spektrum compatible module in a 9xr radio... or a futaba or a couple others, (frsky/flsky)

a couple other radios can do that, but those specific model radios are way pricey...

I can understand that the more expensive radios have better gimbals, and thicker plastic or are even assembled better, but the actual performance will/should be the same.

the spektrum radio has slider knobs, the 9xr doesnt.. both use open source firmware.....

so, with all things being close to equal, I will stick with the 9xr pro, as it has sounds, vibration, backlit, custom switches, etc.


Here's a video link about the 9xr pro:

http://www.youtube.com/watch?v=cdnXafZ6D8g

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