hoang wrote: ↑
Fri Jan 17, 2020 1:12 pm
Raspberry pi is not official selling in my area, so asking for a warranty is pretty complicated.
Now the capacitor has completely fallen off. But for some reason my pi still working just fine, even with lower temperature than yesterday. I think I will leave it that way.
I just wonder what is this capacitor for?
That i dont understand. If you buy a device from outside your country you still have warranty. The lowest warranty you get worldwide would be 1year.
Dont leave it that way, if you realy want keep the PI and dont want use warranty you have to replace it!
There are about 1.1V on it, in the (limited) schematics there are only 4 "big" capicators, the 3 around L4 are parallel.
So it can be only C8 47µ/6.3V 1V1_DDR, its a capicator for the stepdown. A stepdown produce voltage spikes without this and destroy what
is connected to it, means the Rasperry Memory. There are some capicators around the Memory chip(with working C8 its about 85µ total), cause it works temporary.
You can replace the capicator with the same type(voltage can be higher but not lower) if you unable to get it(rare size for 47µ) you can solder 2 or 3 22µ/6.3V stacked. https://www.reichelt.de/vielschicht-ker ... 07090.html
The size seems 0805 2mmx1.25mm