Turnigy 9x need Tech support

Well, I discovered the cause of my problems this afternoon - it would appear that I had the polarity of the NiCad battery reversed, and it has fried a small component on the circuit board. It won't turn on, and appears to be totally dead....bummer.

In my own defence (scant though it may be) who on earth uses the red wire for negative and the black wire for positive? Still, I should have checked.

Anyone got a V2 that has died for another reason, but the circuit board is fine? Or alternatively, does anyone have a circuit diagram that would tell me which bit is burnt out, with a view to replacing it?


Edited by klaw81 - 05/Oct/2010 at 6:29pm

Originally posted by klaw81 Well, I discovered the cause of my problems this afternoon - it would appear that I had the polarity of the NiCad battery reversed, and it has fried a small component on the circuit board. It won't turn on, and appears to be totally dead....bummer.In my own defence (scant though it may be) who on earth uses the red wire for negative and the black wire for positive? Still, I should have checked.Anyone got a V2 that has died for another reason, but the circuit board is fine? Or alternatively, does anyone have a circuit diagram that would tell me which bit is burnt out, with a view to replacing it?

Can you take a photo and I'll look on mine to find out exactly what's needed. Might just be a diode

I'll have a look tonight for you. Looks like a regulor and the goods news is they arn't too much.

Edit***   I've taken the radio apart and it's actually a capacitor. I can't read the cap rating but I have a decent magnifying glass at work and I'll take it to work tomorrow and see what it is.

Not sure how succesful the repacment part will be but it's worth a try.

Edited by spitfire2010 - 10/Oct/2010 at 5:00pm

It's a capacitor alright.

These capacitors are polarized and when subjected to reverse polarity they often become a short-circuit.

Replacing the capacitor is relatively simple and its value isn't particularly critical.  I can look on the schematic and tell you what the value is if you like.

Also, you don't need to use one which is exactly the same.  A far more readily available electrolytic capacitor with two wire leads can be used instead.

Originally posted by rcmodelreviews. It's a capacitor alright. Also, you don't need to use one which is exactly the same.  A far more readily available electrolytic capacitor with two wire leads can be used instead.