Ah.... you posted that in another forum also didn't you? I think I saw it as I was googling for info on it. Normally, I can find or cross reference such things, but I can't find anything on KM15AC so far.

 

It's difficult to see for sure, but my guess is that's the voltage regulator for the B.E.C. I got nothing here. You may have to bite the bullet and send that thing back to manufacturer for repair.

 

Yes, it was me. I've posted this topic on 3 other forums. More views - more chances.
First string - KM15AC - it's manufacturer's code and date of production. And it's useless. Second string - part number.

Only shipping to manufacturer and back will be more than $40. Moreover, I can't find exact contact of the "Robbe Modellsport GmbH & Co. KG" company to ask a question.

 

In my experience with semiconductors: normally, the first line is part number and second line is date code. It's unfortunate that second line is damaged. I'm still thinking by the layout of that circuit board, It may be a voltage reg. for the BEC. Just out of curiosity, did you have a servo short out on you or something to have blown that chip? So if you have L29......D , can you estimate how many digits are missing in the middle? It looks to be 8-pin, correct? I'll try another search tomorrow. (its 1am here)

 

Looks like I've found this chip. It's National Semiconductor (Texas Instruments) LM2941 in WSON 8-pin surface mount package. It has marking "L2941LD". And this is 1A Low Dropout Adjustable Regulator.

 

I was about to say..... I've narrowed it down to this, same number came up in this list: http://chip.tomsk.ru/chip/chipdoc.nsf/vc1!readform&view=smd&cat=L&start=1001&count=500

 

Thanks anyway!