Cheap "high voltage" esc Quest

[sikeston34m]

Originally Posted by snellemin

On mine I used a Ebec, when it blew. When the brain was taken out there was a mess on some of the chips. It looked burn at first, but it was just nasty flux.

Those caps are small huh. The heatsink just pops right off, as it's just sitting on a thermal pad.

Yes, these caps are small and overloaded IMO. It's pretty obvious when the power lead insulation melts like this. They were running very hot.

So what blew on yours?

[rschoi_75]

I was running an external bec, which also fried at the same time the esc did. I think it may have been partially my mistake since I forgot to disable the internal bec. whoops.

[sikeston34m]

Originally Posted by rschoi_75

I was running an external bec, which also fried at the same time the esc did. I think it may have been partially my mistake since I forgot to disable the internal bec. whoops.

Hmmmm............

What voltage was your external BEC set at?

[BL_RV0]

hey, do you guys think this esc could work with a large outrunner in my direct drive tmaxx?

[rschoi_75]

6v. its was the koolflight ubec from here.

[sikeston34m]

Ouch!

With the External at 6v and the internal at 5v. This is probably what took them both out.

The external probably went first, then the shearing heat of a 5S battery set in on the internal BEC.

[BL_RV0]

si there a way to disable the internal bec?

[sikeston34m]

Originally Posted by BL_RV0

si there a way to disable the internal bec?

Yes. All you have to do is lift the center "red" wire from the ESC to receiver plug.

[BL_RV0]

just cut it out? and can someone answer my question, will this esc work for my t-maxx on 6s? (large outrunner)

[rschoi_75]

any news on this?

Hey sike... this is off topic, but I just saw a little show on your hometown. Looks nice! They showed the restaurant where the waiters throw dinner rolls at you... looked like fun and good food. It makes me hungry for some chicken fried steak. mmm.....

[sikeston34m]

Originally Posted by rschoi_75

any news on this?

Hey sike... this is off topic, but I just saw a little show on your hometown. Looks nice! They showed the restaurant where the waiters throw dinner rolls at you... looked like fun and good food. It makes me hungry for some chicken fried steak. mmm.....

No new yet. I need to lift that brain board and get a better look. I have a feeling the brain board might be bad though.

Aaaah, you must be talking about Lamberts. We have ate there several times. There's a guy that comes around pushing a cart full of fresh out of the oven rolls. He yells "Hot Rolls!!!!!!!", you hold your hand up and he throws one across the room at ya. LOL

They have some great food there. It's nicely laid out too.

[lutach]

Originally Posted by sikeston34m

No new yet. I need to lift that brain board and get a better look. I have a feeling the brain board might be bad though.

Aaaah, you must be talking about Lamberts. We have ate there several times. There's a guy that comes around pushing a cart full of fresh out of the oven rolls. He yells "Hot Rolls!!!!!!!", you hold your hand up and he throws one across the room at ya. LOL

They have some great food there. It's nicely laid out too.

Sike,

Are you going to post pics of the brainboard here?

[sikeston34m]

OK, I got the Brain Board lifted.

Here's a picture.

OK class! Quiet down! Can anyone guess what's wrong with this picture?

That's any easy one huh? OK, is there an advanced student in here that can tell me why this happened?

[sikeston34m]

Does anyone have a Brain Board that would make a good transplant?

[GriffinRU]

Originally Posted by sikeston34m

OK, I got the Brain Board lifted.

Here's a picture.

Looks like inductors, do you see any coils inside?

All the rest is clear Fet's drivers with bootstrap caps and diodes.

Also looks like you lost couple via's in process of taking it apart, not good, but can be fixed.

I can try to fix it for you, but later in April :(