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« on: December 18, 2009, 10:52:08 PM »
Hellyflyer
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Heli=Diff parts flying together in close formation

Hi,

I want to know How we can check if an ESC is burnt or alive without putting it on the motor or the Heli itself. As I have a 25 amp Esky ESC which is does not work when I read forums they say that normally it catches fire n burns but nothing like that happend to this one but it just stopped working currently I am using another ESC but I want to know how can I check if this one is okay or not and if its not okay then is there a way to fix it? Huh?

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« Reply #1 on: December 18, 2009, 10:56:55 PM »
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read this
http://www.rcuniverse.com/forum/m_9337483/anchors_9338209/mpage_1/key_/anchor/tm.htm#9338209
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« Reply #2 on: December 30, 2009, 09:30:44 PM »
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Heli=Diff parts flying together in close formation
Tried everything the forum instructed now I guess the only way is to peal the heat sink and look inside for burnt stuff Embarrassed
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« Reply #3 on: December 31, 2009, 01:23:51 AM »
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If the output MOSFETs are short then the circuit would burn but if the MOSFETs are open then there would not be any burning of the circuit but the ESC would not work.
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« Reply #4 on: December 31, 2009, 08:07:09 AM »
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Quote from: Hellyflyer on December 30, 2009, 09:30:44 PM
Tried everything the forum instructed now I guess the only way is to peal the heat sink and look inside for burnt stuff Embarrassed

Best  is to open the heat shrink and inspect if anything is burnt inside. Normally  you know it immly when you see the IC inside.

Sai
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« Reply #5 on: January 01, 2010, 01:16:47 PM »
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Heli=Diff parts flying together in close formation
Hi All,

Below the heatsink I see 8 small black 2 leged mosphet's (i guess) and one IC on the other side. One of the mosphets is burnt and has also burnt the dual layer PCB. So I don't think its repairable is it?

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Amit
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« Reply #6 on: January 01, 2010, 02:57:42 PM »
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Typically, it is not worth risking the heli with improvisations on such a critical component (as all power including receiver power flows through it).
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« Reply #7 on: January 01, 2010, 08:04:15 PM »
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I agree with Anwar, NOT worth it. A friend lost his plane to a "repair" like this.
If it died then bury it  Grin or use it to learn or investigate not to reuse without it being "certified as worthy"
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« Reply #8 on: January 04, 2010, 10:57:22 PM »
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Heli=Diff parts flying together in close formation
Oh yes,

I am not even thinking of putting it back on the bird but I only wanted to know if its repairable and if anyone has tried it can give me some tips of what all things to work with...but i don't think its even worth a try.

Anyways thanks for your replies.

Hellyflyer
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« Reply #9 on: January 04, 2010, 11:22:47 PM »
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Hi all,

Even i have a esc thats made a hole in it's heat shrink but the only problem is my motor is not working instead it jerks around always when the throttle stick is moved upwards.

Can anyone help me? Help Me
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« Reply #10 on: January 05, 2010, 07:03:57 PM »
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MICROSTAR 2000
first check the motor for any physical damage !
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« Reply #11 on: January 05, 2010, 11:04:31 PM »
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Heli=Diff parts flying together in close formation
Hi ,

Check the motor for any damage and then check it with a different ESC if it works don't even try to use the old ESC as its not worth a try.

Hellyflyer
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