Whats this mean ?
 

Received and email from Castle ansd the on the invoice it said this;
"Repair Action: U13, Q2 and U6 damaged; need eco,"

Please Translate


ALSO, I had amother M.M.M. failure. Plugged it in to run and Nothing ! NO beeps,no sounds, NADA. DOA ??????
I guess I have another going back. Even though it's a bit of a drag, Thank God for awesome customer service.

Circuit components. "U" usually means some type if IC chip, "Q" usually refers to a transistor/FET. The number is just an arbitrary count.

it means your esc is F'ed up:whip:

The number following the the letter refers to a specific device, each one is numbered.

Yeah, I guess I should have said that number was sequential and unique, and used to match the specific component to a schematic. Arbitrary was the incorrect word, but what I meant it has no meaning to the component spec-wise, just for identification.

I appreciate the comments, I guess this info is not enough to determin what was wrong with the ESC ? I reckon it doesn't really matter, I was just curious and Castle took care of it like the true customer service champions they are.

well when you get a MMM back, take a magnifying glass, find those markings, and you can see the components mentioned. then if they have any markings on them you could try to figure out what each component is

Those U, D, Q, C, R, L, etc markings would be printed on the PCB, not the device. And in a PCB as cramped as the MMM, I bet those markings are under the components, especially the ICs. Caps, diodes, resistors, and other smaller components may have the letter/number next to it.

At any rate, I just looked at an old MMM brains board pic and cannot see any of those device numbers (don't mind the circles/arrow - it came from the BEC mod thread):

http://scriptasylum.com/forumpics/mmm_bec_mod.jpg

So, likely there is a schematic diagram and/or a layout diagram with those letter/number designations on there. Unless you have those documents, figuring out what was replaced will be next to impossible unless you know what part burnt/fell off when you sent it in.

Thank You Mr. Brian.

Maybe you could call CC and ask what those parts were?

I took the chance you boys with the big brains would know, I'll consider calling CC.

Thanks

how come you got info on your MMM when mine has been there for over a month now and havent heard much about it at all besides from a few pointers from joe!
yours only got sent in a few weeks ago right?

I am very curious about this myself????

i dunno....joe says that they are waiting on replacment of my MMM cause i cooked it proerly.
i'm getting sick of waiting and i really dont wanna get short with them...

I sent mine in about 3 weeks ago, as to why your still waiting for news is beyond me ? I've ben notified that mine was warrenteed and no charges but it has yet to be shipped out.
Hope you get some news soon !
I have another to go back when I get around to yanking it out of the Revo :-(