HOW TO: Quark Mod / LSP Conversion *PIC OVERLOAD WARNING* - RC-Monster Forums

zeropointbug · 12:05 AM

K, that thing you are pointing at is a small capacitor, ceramic surface mount type. They are probably meant to absorb high frequency EMI in the power stage. I don't think they are absolutely critical to operation, but i'm sure it takes a load off the other caps, and the FET's maybe. (high frequency is hard on components)

Don't even try replace it though. Are you sure it didn't short out on the Quark case? Unless it's a dud, which is very very rare for these types of components, these caps are made by the billions each year.

Oh, and that pick, you CAN'T unplug the controller without unplugging your fans...

GriffinRU · 12:44 AM

Quote:

Originally Posted by zeropointbug

K, that thing you are pointing at is a small capacitor, ceramic surface mount type. They are probably meant to absorb high frequency EMI in the power stage. I don't think they are absolutely critical to operation, but i'm sure it takes a load off the other caps, and the FET's maybe. (high frequency is hard on components)

Don't even try replace it though. Are you sure it didn't short out on the Quark case? Unless it's a dud, which is very very rare for these types of components, these caps are made by the billions each year.

Oh, and that pick, you CAN'T unplug the controller without unplugging your fans...

LOOKS LIKE TANTALUM CAP and they do fail very frequently with fatal shorts.
This cap need to be replaced with proper one otherwise you will stress other components.

Based on Quark's operational voltage and caps size I will guess 1uF to 4.7uF value with 35V. Check www.digikey.com for good LOW ESR Tantalum replacement. If You have better picture then you shoud be able to read something like 4u7 or 3u3 ...