Problems!! 14MZ 2.4 R6014FS

[canavanbob]

I think the tests showed pretty clearly that these receivers are more sensative to heat than your average receiver. Did Futaba do any testing on operation at elevated temps, say ambient temp above 100F? These guys have 4 receivers that die at less than 100F. Thats 4 out of 4! If Futaba did not find this problem, they must not have tested at elevated temps. I have a 12FG, but so far only one 14 channel receiver. My son has the same setup and has only had one flight (successful) on the 14 channel receiver. We have had several good flights on the 7 channel receivers. I will do some testing myself to see if I can duplicate this.

[torquen]

I put a black piece of paper down on the ground with the receiver laying on top. I then covered the receivers "2" with a glass lid from a cooking pot. The sun was beaming down onto the receivers for hours with temps well above 150 deg and the receivers never shut off.

I just came back from India. It was extremely hot over there. I had the 6014 receiver installed in a composite ARF right under the canopy. The planes sat out in the sun all weekend long and worked perfect.
Garrett Morrison

[canavanbob]

I never fly my planes with a glass lid over my receiver. What was the point of the glass lid? Was it a magnifying glass type of lid for cooking in the desert? Paper is a very poor heat conducter. Please, a picture of your installation. Sounds like my installation.
Bob Canavan

[gregorycstitt]

I put a piece of orange paper down because it looked better than black and I used a tinted glass cooking pot because it looked better as well. Joking! Common on guys, there is apparently a problem. If it just happens to one guy you could possibly dismiss it. But, more and more guys are starting to have problems. This isn't an isolated case. I am now stuck with a 30 day old radio that I paid over $1200 for that continually loses signal when my Python is in the sun. 5 guys were out with me and watched it happen over and over. What we all need to hope for is that someone doesn't get hurt. That a plane doesn't lose signal between the rx and tx and actually hurts someone. You talk about a liability nightmare. I have been grounded now for two weeks. Guess what Hobby Services said, the system checks out fine. I knew that was coming. What I hope for is that Futaba investigates this and quickly so we can get on with our flying. We'll see!

[fastford]

I assure you that the team at Futaba/ Hobbico are working on this as we speak. It is an unfortanate situation but I am sure there will be a fix quickly. I am in the mean time mounting a Fan from a Fromeco Sarahara regulator to my receiver and plugging it right into an open port. fan doesnt draw much in the means of power.. The heat sink for the internal regulator is on the bottom of reciever so I would suggest that you flip your reciever over and not mount the reciever bottom to foam. I know this might seem like a band-aid but for now it will fix the problem.

Jason

[gregorycstitt]

Thanks for the insight. Might try that or something close to it. Also thanks for letting us know the Futaba team is working on it. All I needed to hear.

[torquen]

	Quote: Originally Posted by canavanbob
	I never fly my planes with a glass lid over my receiver. What was the point of the glass lid? Was it a magnifying glass type of lid for cooking in the desert? Paper is a very poor heat conducter. Please, a picture of your installation. Sounds like my installation. Bob Canavan

Green House effect??? I used the lid to trap the heat. Actually right now the receiver is reading 175 degrees F when I put my temp gun right on the receiver. I have not had this problem with my receivers. I wanted to see if I could make an environment where the receiver became hot enough to shut down. Its been in the sun for 3 hours already and it keeps on working.

Now I have four receivers sitting in the 175+ deg heat. Not one has failed. But the sun is starting to lower and the temps are dropping so the test will have to stop.
Garrett Morrison

[Judge]

	Quote: Originally Posted by gregorycstitt
	Thanks for the insight. Might try that or something close to it. Also thanks for letting us know the Futaba team is working on it. All I needed to hear.

I had hoped that this post that clear:

http://www.flyinggiants.com/forums/443610-post51.html

[fastford]

	Quote: Originally Posted by Judge
	I had hoped that this post that clear: http://www.flyinggiants.com/forums/443610-post51.html

I guess they didnt belive you Oh well. Some times people need to hear it more then once..

Jason

[dubd]

	Quote: Originally Posted by JagerBomb
	This is the point where this informative thread will end up getting sent to the trash heap. You guys and your petty brand wars are ruining this site. It was pointed out earlier in this thread that good info was being brought up and it would help all, don't spoil this by interjecting my Chevy is better than your Ford bullcrap. Mark Trent

I have no brand loyalty, which is why I sold my 14MZ and switched over to Spektrum... or did you miss that? I have no problems switching to a Futaba radio in the future either. I am 100% brand agnostic.

I am looking forward to Futaba's solution because I feel as far as transmitters go, they have the best high end radios available.

[BR289]

I have faith in Futaba that they will find the problem and correct it. It may be a bit of an inconvienence but oh well.
I appreciate all the information I have read so far and also appreciate the guys that are experimenting with the receivers to duplicate the problem.
There isnt any reason to be angry at Futaba as I am sure if they had any idea there would be a problem, they would have fixed it from the beginning.
Thanks again guys....
Blair

[Mithrandir]

Maybe drill a few holes into the plastic case???
(Be sure to remove the circuit board first lol)

The Rx is receiving.. I can't imagine it generates any of its own heat.
I would put a power meter on it and see how much current/power just the Rx draws, and then plug in servos and see how much they draw...

[crhammond]

Interesting day today. I flew my 3W 40% Extra with 2 x 6014rx on a Powerbox Royal. I noticed right away that the Rxs get really hot in the sun if they are not covered. It isn't even hot here (66deg - and believe me it felt wicked hot compared to our winter!) The Rx's were hitting over 90f after being on for 5 mins just doing the range check. When I let them bake in the sun a while they hit 120f. But - these are nowhere near the temps posted here so I flew.

No probems on the flight - except my Royal said one Rx went in to failsafe once and the other twice. I'm guessing that is something to do with where they are mounted. I'm sure glad I had the RRS/Royal in there! I didn't even notice the RRS switch over. The ground test was perfect from all sides and I sure thought I did a good job mounting them...

My Rx's are shaded by the pilot when the canopy is on. In addition they are mounted on thick foam "floating" the way QQ does his. There is good air flow in the fuse - when I landed the Rx's were 91f.

[canavanbob]

	Quote: Originally Posted by Mithrandir
	The Rx is receiving.. I can't imagine it generates any of its own heat.

Is there some kind of science behind that opinion? My radio gets warm and it is only receiving.
Bob

[fastford]

the reciever does generate heat. It has a built in regulator that regulates voltage down to supply the signal to servos. From what ever your input voltage down to the correct signal voltage. I cant remember what it is but definatly does.
Jason