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HomeAircraftHelicopterRadio - Spektrum DSM › DX7 trim switch is broken, anyone know of a replacement?
03-12-2010 07:29 AM  8 years agoPost 1
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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Was just playing with the sim using my DX7. Was working great. Out of the blue (without being dropped or anything), the aileron trim will not click to the right. I can move the trim to the left, but i can no longer move it back to the right no matter what.

I would like to avoid sending it to Horizon. Considering the season is just beginning.

Does anyone know of a replacement switch?

Shawn
Team Leisure-Tech
Team HelixRC

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03-12-2010 08:00 AM  8 years agoPost 2
Spitfire1

rrElite Veteran

Perth Australia

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You could always just use the subtrim if you cant get it fixed, I think my one is going also, a freind had one go and got bloke to take it apart and put it a new switch.

Im guessing its one of them little round push button switches inside but I havent looked, maybe you could take it apart remove it and replace it with one from an electrical shop, would all depend on how hard to solder it is I imagine.

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03-12-2010 08:34 AM  8 years agoPost 3
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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yeah, your right, it is one of those little push buttons. I'll have a look through digikey and see if i can find what i want out of all the 3.45Billion other buttons they have.

i would rather not mess with subtrim, as that only effects a single channel, while the trim tab effects two or more channels equally. In the case of aileron, i would have to adjust both the pitch and aileron channels in the right direction. CCPM = P.I.T.A.

Shawn
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03-12-2010 01:32 PM  8 years agoPost 4
JRjoe

rrElite Veteran

Jonesville , IN USA #1

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I'd say the sooner you send it to Horizon, to sooner you'll get it back...


JRjoe.....
Indoor plumbing??? No, we don't need that!!!

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03-12-2010 01:40 PM  8 years agoPost 5
z11355

rrMaster

New England

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my guess is that there's nothing very special about the switch. They're
probably just SPST or DT bat-handle switches.

Horizon will probabably be more than happy to sell you one as quickly as Digikey will and then just solder it in yourself.

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03-12-2010 02:00 PM  8 years agoPost 6
DougsRC

rrProfessor

Mass.

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Shawn, the same thing happened to my DX6i and I am only assuming they use the same switches on the DX7. There is no soldering involved with the switch, it simply rocks back and forth pressing one black button to trim left and the other button to trim right. Horizon might send you a switch assembly for free and you can put it in yourself if you don't want to send the TX in. What I did is separate the TX body and removed the switch from the inside and now just use a micro plastic screwdriver to press one or the other button for trim.

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03-12-2010 02:35 PM  8 years agoPost 7
cbflys

rrVeteran

Nesconset, NY - USA

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Horizon's turn around time is only a couple of days.

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03-12-2010 10:34 PM  8 years agoPost 8
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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here is a picture i grabbed from another site, someone else having the same problem.

http://static.rcgroups.com/forums/a...pg?d=1257652533

Shawn
Team Leisure-Tech
Team HelixRC

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03-12-2010 10:40 PM  8 years agoPost 9
DarkSide41

rrVeteran

Sylacauga Alabama USA

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Its probably the pen in his transmitter thats making it not work right.

" The biggest threat to our freedom is not from foreign terrorist , but domestic morons"

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03-12-2010 10:42 PM  8 years agoPost 10
DVS

rrApprentice

California

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Its probably the pen in his transmitter thats making it not work right.
LOL

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03-13-2010 09:48 PM  8 years agoPost 11
9387ASH

rrElite Veteran

UK

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Is it the switch that has gone faulty ? It is usually a small movement of the pcb board that prevents it operating correctly. Try repositioning the pcb and retest.

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03-13-2010 10:20 PM  8 years agoPost 12
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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i'll take a look, to be honest, i have not even opened it up yet.

Shawn
Team Leisure-Tech
Team HelixRC

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03-13-2010 10:26 PM  8 years agoPost 13
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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9387ASH
Your the man. that was exactly the problem. I opened her up, put some pressure on the pcb, and she started clicking again.

I took the pcb off all together, and both buttons are functioning properly.

Shawn
Team Leisure-Tech
Team HelixRC

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03-14-2010 01:15 AM  8 years agoPost 14
9387ASH

rrElite Veteran

UK

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Thought it would be that. Those micro-switches are very reliable and all the various sets that I have dealt with exhibiting this problem are usually down to creepage of the pcb.

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HomeAircraftHelicopterRadio - Spektrum DSM › DX7 trim switch is broken, anyone know of a replacement?
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