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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › New Radio? Check Your Transmitter Battery Wires...
03-13-2008 04:39 AM  12 years ago
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dkshema

rrMaster

Cedar Rapids, IA

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New Radio? Check Your Transmitter Battery Wires...
I ordered a new 2.4 GHz JR X9303 late last week, it showed up today, UPS. The shipping box looked fine, the radio box inside the shipping box looked fine.

I unpacked it, turned it on, nothing happened. I plugged in the charger, nothing happened. I figured somehow the 3A fuse inside had blown. Took the TX back off to check the fuse, it was fine and intact.

Then, I took a closer look at the TX battery pack itself and this is what I found:

Negative lead, completely severed, positive lead, about half of the twisted conductors were sliced.

A little bit of solder, some heat shrink tubing, and the X9303 was up and running. Battery's fine.

-----

The battery in the transmitter can easily slide back and forth in its recess, under the access door. It would appear that somewhere between the factory and my door, this radio saw a nasty drop, the battery slid inside the case, and the wires were guillotined between the battery top and the inside of the battery case.

For those of you who have a new JR radio, I think I'd pull the battery cover off a new transmitter and give the battery lead a good inspection. After repairing the wires and putting the pack back in place, I added a bit of foam rubber between the top of the battery and the case to keep the battery pack from sliding around inside.

-----

Had the insulation on the wires been only damaged and at least one of the leads not been neatly severed, this could have led to a nasty short in battery, perhaps resulting in a fire.

-----

Heads up on those new radios, kids.
-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz
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03-13-2008 04:41 AM  12 years ago
Dood

rrProfessor

Wescanson

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bizarre.
Must have gotten the leads caught in the battery compartent door or something?
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03-13-2008 04:50 AM  12 years ago
dkshema

rrMaster

Cedar Rapids, IA

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Nope, not caught in the access door. There's no way the wire THAT close to the top of the battery pack can get caught in the door. If you take a close look, the damage is at the edge of the battery pack (about a 1/2 inch at most away from the battery), and if you look inside the battery compartment, there are some short molded plastic pieces that have very nice, sharp edges. Battery was slammed against them, wires were sliced.-----
Dave

* Making the World Better -- One Helicopter at a time! *

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03-13-2008 04:58 AM  12 years ago
dkshema

rrMaster

Cedar Rapids, IA

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Perhaps this fellow had the same thing happen, only he wasn't so lucky..

http://www.runryder.com/t413176p1/
-----
Dave

* Making the World Better -- One Helicopter at a time! *

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03-13-2008 05:03 AM  12 years ago
Park

rrNovice

Buda, Tx-Travis

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Was flying a walkera 22e once when for no reason it rolled over on it's back and had a very bad crash. Turns out it was a short in the battery holder.
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03-13-2008 05:16 AM  12 years ago
Mr.Green

rrVeteran

Kaysville, Utah

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I just received my brand new JR X9303 2.4 Ghz today also. I charged mine up on my Triton and it charged fine and I powered it up and started tinkering with it. I came a cross your post and since I had my new tx at the computer with me I thought that for the heck of it I would check mine. I sure am glad I did. The leads on my tx battery are pinched really badly - while not severed, they are close. TX was immediatly shut off and battery removed. A simple piece of foam on the one side of the battery compartment would have prevented this.

Doug Green.
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03-13-2008 05:44 AM  12 years ago
Radron

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Yuma, Az. USA

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Sounds like an e-mail to JR is in order!What goes up must come down,Just why so damn HARD??
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03-13-2008 05:55 AM  12 years ago
dkshema

rrMaster

Cedar Rapids, IA

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There does appear to be a trend developing, doesn't there?-----
Dave

* Making the World Better -- One Helicopter at a time! *

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03-13-2008 06:29 AM  12 years ago
Boidman (RIP)

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The Home Stretch

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Some DX7's had the same problem.
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03-13-2008 06:43 AM  12 years ago
himaxkeith

rrApprentice

Atlantic City NJ. USA

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[quote]There does appear to be a trend developing, doesn't there? There have been in the past alot posts refering to the same problem sounds like you definitely not alone
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03-14-2008 05:00 PM  12 years ago
Mr.Green

rrVeteran

Kaysville, Utah

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I did e-mail JR about it and they apoligized about it and already have sent me out a replacement free of charge and without question. Now that is great customer service!
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03-14-2008 05:08 PM  12 years ago
tauscnc

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Joliet IL

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Good they took care of you but they have yet to fix the problem.

Just bought a JR 9303 and from experience of other radios I checked. Mine was fine but a TINY piece of foam would really go a long way here.

taus
http://www.cuttingedgecnc.com
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03-14-2008 06:02 PM  12 years ago
robhurlin

rrKey Veteran

Pretoria, South Africa

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A guy at the club was flying a brand new DSX9 on Saturday. He was surprised to discover the battery was flat after charging overnight. Then he noticed that the charging socket was off-centre and the charging plug wasn't making contact! NOT GOOD!

He thought maybe the radio itself was faulty so I lent him the NiCd pack out of my 9xII and he was radio was back to normal. He was very grateful!
Rob.
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03-14-2008 06:34 PM  12 years ago
dkshema

rrMaster

Cedar Rapids, IA

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Small piece of foam rubber, some double-side tape, something to fix the battery pack in place. Simple fix, and JR needs to step up to the plate.-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz
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03-14-2008 06:58 PM  12 years ago
robhurlin

rrKey Veteran

Pretoria, South Africa

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I have the FP Evo-Tx battery in my DSX9. I see they put a foam strip about 2mm thick between two of the cells to beef up the size. Its a nice tight fit!!Rob.
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03-14-2008 07:32 PM  12 years ago
jschenck

rrProfessor

La Vista, NE.

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I put the bind plugs in the battery compartment. besides being a convenient place to store them it helps keep the battery from bouncing around as much. A piece of foam on the side is also a good idea.

I seem to remember reading about pinched wires exactly like this a few months ago so I know you are not the only one reporting this. I can't remember if it was a 9303 or a DX7.
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03-14-2008 09:33 PM  12 years ago
HHawk

rrVeteran

Gardnerville Nv.

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I had the same thing happen on a DX 7 , although less severe. Definitely a good thing to check.
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03-14-2008 09:45 PM  12 years ago
Helinorth

rrApprentice

Terrace Bc Canada

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Two of the four dx7 that we purchased a year ago had the same happen as well one was pinched in the door and the other from the battery.
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03-14-2008 11:28 PM  12 years ago
dkshema

rrMaster

Cedar Rapids, IA

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You'd think after seeing and hearing this kind of stuff for over a year that someone in the organization would actually take the initiative to FIX the problem at the factory. We're not talking rocket science here.-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz
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03-14-2008 11:42 PM  12 years ago
hrosee

rrApprentice

Richardson, Texas

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Mine did the same and shorted out in the transmitter. I caught it as soon as I saw smoke. It melted the inside of the case and destroyed the battery. I put a new battery in in and it works fine.

I also had the plastic on and off switch break in two. I had an old parts radio that I took it off of and now all is ok.

This was on my DX7. I saw another guy at the hobby shop last week that his new X9303 on/off switch was broke and would not turn off.

Makes you wonder about the quality of JR/Spektrum radios.
2 - Raptor 50's V2
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › New Radio? Check Your Transmitter Battery Wires...
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