Whats this mean ?

[Bondonutz]

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.

[BrianG]

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

[bdebde]

Originally Posted by BrianG

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

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

[whitrzac]

Originally Posted by Bondonutz

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.

it means your esc is F'ed up

[BrianG]

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.

[Bondonutz]

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.

[eovnu87435ds]

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

[BrianG]

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):



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.

[Bondonutz]

Thank You Mr. Brian.

[BrianG]

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

[Bondonutz]

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

Thanks

[shaunjohnson]

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?

Originally Posted by shaunjohnson

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????

[shaunjohnson]

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...

[Bondonutz]

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 :-(