Reverse polarity just fried my 2.4 mfu. HELP!

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Ferny
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Reverse polarity just fried my 2.4 mfu. HELP!

Post by Ferny »

Help!

Think I may have just fried my brand new 2.4 GHz system :(

Long story short it due to my 1, haste 2 ham fistedness I have either reversed the polarity or shorted the power leads, end result was smoke from board horrid smell now left track motor run constanly regardless of in put.

Here's a photo of what it looks like now, is this salvageable or have I just blown 40 quid
Image

The small copper strip appears to have broken, is this a fuse of some sort?

Cheers

Jon
ALPHA
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by ALPHA »

OUCH! That looks bad ferny...How did you get the polarities reversed? Sorry that board looks fried... there seems to be carbon burns and that white stuff around the chip...well that's a result of the surge :|

ALPHA
Ferny
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by Ferny »

The leads fell out of the battery plug and some how I put them back in the wrong/ shorted them out!

I have ordered another one worst thing is I have only had it running for half an hour
ALPHA
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by ALPHA »

Ferny wrote:The leads fell out of the battery plug and some how I put them back in the wrong/ shorted them out!

I have ordered another one worst thing is I have only had it running for half an hour
OUCH OUCH! make sure you make the leads proper before installing the new one... it's the one thing about anything electrical now days... with all the micro circuitry you really can't repair it without some really sophisticated equipment ..not to mention acquiring the parts to do it... electrical current is fast...even with normal nicd batteries

Just something to remember ...Red (positive) goes into the square ...and Black (Negative)... goes to square top round bottom ;)

Good Luck with the next attempt :thumbup:


ALPHA
Last edited by ALPHA on Mon Jul 14, 2014 3:46 pm, edited 1 time in total.
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tomhugill
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by tomhugill »

Sounds like you've blown the fets! Unfortunate in this case I think that's going to be a new control board.
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Lert
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by Lert »

Yeah there's much, much more going on in that picture than just a melted copper strip. There's carbon forming on multiple contacts, the white stuff near the IC. It's looking a lot like a new board might be needed.
JagdPanther / Leopard 2A6 / StuG Ausf. G / KV-2 / M4A3A4 / MTLB / 2.5 ton truck 6x6
Ferny
Lance Corporal
Posts: 150
Joined: Fri Feb 07, 2014 3:42 pm

Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by Ferny »

Polite words cannot describe how annoyed I am that have done this! :( All because of a dodgey battery plug and my stupidity lol
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FreakyDude
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by FreakyDude »

Ferny
If you would like I can replace this board for you at a cost of $20.00 Canadian plus 13 for shipping. I have a few of brand new boards that I usually just scrap because I hate the Taigen and RX systems.
If your interested send me a PM and we can work out the details
A Joke is a very serious thing
Winston Churchill
Ferny
Lance Corporal
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Joined: Fri Feb 07, 2014 3:42 pm

Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by Ferny »

Thanks for the offer but already have one on route, will bear you mind I fry another one!
ALPHA
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Re: Reverse polarity just fried my 2.4 mfu. HELP!

Post by ALPHA »

Here's a stupid question.... Is this for the Tiger you just finished ? :think:

ALPHA
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