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Posted by CX2Mike | Mar 29, 2011 @ 10:48 PM | 61,341 Views
Well everyone, after much help from the members of this board, I've finally managed to get my Turnigy 9x back fully functional after it's fateful brush with high-voltage death.

First off, DON'T PLUG THE BATTERY PACK IN BACKWARDS.
Of course, if you're reading this, you've likely already learned that, about 2 seconds too late.
When you introduce 11-ish volts going the wrong way, you'll most likely kill all 3 voltage regulators (VRs from here in) and 1 very small SMD capacitor (Cap hereafter).

Fortunately, there is hope! With a (4) parts, a decent soldering iron, and digital multimeter, and some patience, you can most likely get back in the air before too long.

I quick note about tools...
You don't need a ton of expensive gear to make this repair, but if you do have to go out and buy everything from scratch, it might be worth adding up the cost of the parts and tools and see if it's cheaper to just replace the radio. On the other hand, if you buy the stuff, you'll have it for the next time you want to fix or mod something, so you do the math.

You'll need:
(1) A decent soldering iron. Variable temp control is nice, but not critical. Just MAKE SURE that you don't use a high wattage iron, or you'll just do more damage.
The model I have is no longer available, but has been replaced by this model. I'm anything but an electronics expert, but I do end up soldering stuff fairly frequently, and I've been nothing but pleased with this model.
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