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HomeRC & Power✈️Aircraft🚁HelicopterRadio - JR DMSS › WARNING-X9303 CHAFED AILERON GIMBAL WIRING
08-23-2008 07:05 AM  12 years ago
P Johnston

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Ann Arbor MI

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made a mistake and posted it hear,oops (thanks Dood)
sent a pm D!
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08-23-2008 03:18 PM  12 years ago
George Matthews

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N.W. Ohio

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Well I have about 25 flights on my 9303 2.4 since I did the JR recommended wire reroute mod. And so far so good, I opened her up and everything looks fine. Hopefully this mod. will work out and this will be the end to everybodys problems.George Matthews
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08-23-2008 10:22 PM  12 years ago
tec548

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Houston, TX

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I have been using my X9303 since January with 109 operating hours. I recieved an email from Horizon on Friday telling me about this possible issue. I opened mine up and the red (power I'm assuming) wire to the ale pot was almost completely torn through. There were only three conductors still making contact!!! This was a crash waiting to happen! I fixed the wire with solder but I don't feel very good about it. I also ran the wires as per their direction but I would think that the wires will now rub on the inside of the gimbal houseing just causing another chaffe area. Has anyone sent their radio back to them for repair? What was the turn around time? Do they have an actual fix or are they simply putting a band aid on a skull fracture?

Joel
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08-24-2008 07:06 AM  12 years ago
lazy-b

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Manila, Philippines

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Just opened a newly purchase JR DSX 9 Transmitter....and have found out that the Aileron Wire is not Re-Routed properly.......instead of Re-Routing it, I just Cover the Voltage Regulator with a Mylar Plastic Film (its the Material use for Packaging Spectrum Receiver), and Bend the small wire coil (HOlding the Airleron Wire) so that the Aileron wire will not Touch the Voltage regulator.

Here how I make a mylar cover, just cut a Rectangular Shape Films, make sure Film will cover up the whole regulator, then cut a slots about 2 mm wide on the Upper and lower parts, loosen the 2 screw on the upper and lower part of the Regulator, this 2 screw will hold the Mylar Films cover. (its easier to cut a Slots than drilling a hole)

I do not want to use Re-route wiring cause this will make the wire loop smaller which might cause more stress on the wiring, I want the looping to be as big as possible to avoid stress.

Covering the Regulator with mylar film and Bending the Wire holder would be a better solution.

Ellion
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08-25-2008 06:48 PM  12 years ago
PilotDaz

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Seattle, WA

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lazy-b
Could you post some pictures to help describe your mod? It sounds like a good one!
~Team Collective Mayhem - "My anger management class really PISSES ME OFF!"
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08-26-2008 04:53 PM  12 years ago
blurz28

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usa

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Here is my fix for rerouting the wires.......

As you can see in the pic, I took a dremel and carefully cut down into the plastic that captures the wire then filed the rest of the way by hand. The opening is just big enough to get the 3 wires out one at a time.

this is just a pic showing the cut a little better from the side.

Full up with plenty of slack in the wires

Full down with plenty of slack in the wires.
3,2,1,...+1,2,3,4,5,6,7,8,9,10,11,12,13,14...
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08-26-2008 05:19 PM  12 years ago
PilotDaz

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Seattle, WA

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Here is my fix for rerouting the wires.......
This looks like a better mod. The one that horizon posted still allows the wire to be chafed.
~Team Collective Mayhem - "My anger management class really PISSES ME OFF!"
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08-26-2008 05:27 PM  12 years ago
tec548

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Houston, TX

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I like waht you did as well. It looks to be the best fix. As soon as I get my radio back from repair I will probably do the same.

Joel
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08-26-2008 05:45 PM  12 years ago
blurz28

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usa

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yeah....
I tried their way but the wires still rubbed, just in a different place. So I got to thinking, why does it even run through there in the first place? I know they shoe goo the wires in that notch to keep them from putting stress on the solder joint. Any way it was the best I could come up with and removes all chaffing issues.

Glad to help.
3,2,1,...+1,2,3,4,5,6,7,8,9,10,11,12,13,14...
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08-26-2008 11:23 PM  12 years ago
9387ASH

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UK

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Why did you cut into the barrel ? You could have desoldered the wire from either the PCB or from the pot and pulled the cable through.....

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08-26-2008 11:55 PM  12 years ago
blurz28

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usa

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if i could solder worth a crap
That might have been an option. However, I can't so that was the easiest solution for me. And I didn't want to potentially screw up anything else. Anyway, if a person can solder well and isn't worried about screwing anything else up knock yourself out with the soldering iron!
3,2,1,...+1,2,3,4,5,6,7,8,9,10,11,12,13,14...
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08-27-2008 12:04 AM  12 years ago
9387ASH

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UK

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Just though that desoldering is the easiest option and can be reversed easily in case you needed to send the set back at any time.
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08-27-2008 02:29 AM  12 years ago
helidoc2

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so.cal

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i did the jr mod today...doesnt look like a real fix to me but we will see, spent good money for the radio...seems to me shouldn`t have to do this....
looks like the real fix is to de-solder, reroute the wires.
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08-27-2008 05:00 AM  12 years ago
Life_Nerd

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USA

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I just opened up my X9303 and saw a small amount red debris around the voltage regulator but the wires looked fine.

The edges of that regulator are razor sharp so no wonder. I took a small flat modelers file and dulled the edges and corners of the regulator. That should be enough in my opinion, but I'll still check it every season.

Scott
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08-27-2008 08:22 AM  12 years ago
pchristy

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Devon, England

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I opened up my (UK sourced) DSX-9 just before setting off for our Nationals. No problems at all! The wires appear to be routed well clear of the regulator, and no sign of chafing.

Clearly it was worth the wait for them here in the UK!

--
Pete
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08-28-2008 03:18 PM  12 years ago
SeaHawk

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Ft. Lauderdale , Florida

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good thing this post exists
sure enough mine was chaffing too
put a good amount of goop around the wires and rerouted as per instructions
Allan "Seahawk"
Flying low and slow
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09-01-2008 06:43 AM  12 years ago
Paul Woodcock

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Dubai - United Arab Emirates

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removed due photo upload issues...
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09-01-2008 07:03 AM  12 years ago
Paul Woodcock

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Dubai - United Arab Emirates

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My mode 1 fix
Hi guys

I did the JR mod and it didn't work well on mode 1. The friction plate got in the way.
I didn't want to cut the plastic as one of the guys did here on RR, as the friction plate needs to rub on the plastic...

So soldering would be needed.

I unplugged 2 of the wires from the main pc board and unscrewed the small 'aileron trim' pc board. I wanted to solder on this side as, i didn't want to re-glue the wires on the gimble and there is nothing to mess up/melt on the board. If i soldered on the pot side, i could mess up the pot, etc...As in pic 1.

Pic 2 and 3 show full throttle and idle. You can see i moved the 'spring mount' and added some shoo goo to make sure the wire didn't move and get close to the friction plate. There are 2 holes on the gimble, so no drilling was required. I just had to cut 2mm of the screw as it bottomed out in the plastic. I also added a cable tie to make sure the wire did the flexing and no flexing gets transfered to the solder joints.(the larger of the two cable ties seen)

I am happy with my mod. It took less than 1/2 hour.

Regards
Paul

PS: It shoud also work for mode 2....
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09-02-2008 12:07 AM  12 years ago
turboomni

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East of the Equator

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That looks great ,,I may have the nerve to try that one pwood.
What is Shoo Goo? Is it a silicone type product? Could I use RTV on the wires?? Mine was cut through the insulaton but not the wire.
Setup is everything, All my heli's can fly far better than I can pilot them
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09-02-2008 06:48 AM  12 years ago
Paul Woodcock

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Dubai - United Arab Emirates

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Hi

Shoo Goo is an American product. It is new to me.....

Here in Dubai, it is available in Ace Hardware. Back in South Africa, it was not available.

It is NOT like silicon. I am not sure what it is....
It comes in a tube (like silicon). It is clear and smells like contact adhesive. It is very gooey and dries in about 1/2 hour to a slightly rubbery/flexible blob.

Someone may have better / more info....

I believe silicon is NOT good on electric wires...

Regards
Paul
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HomeRC & Power✈️Aircraft🚁HelicopterRadio - JR DMSS › WARNING-X9303 CHAFED AILERON GIMBAL WIRING
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