Snipped capacitor from lcd controller board

[Gonce]

Hello all,

I was following along with Wermy's GBZ guide and in order to get things to fit I was cutting some hot glue and... well.... I attached a picture..

I have bought a whole new screen replacement but I was hoping to buy another SMD cap to replace and possibly repair this one.

I was wondering if anyone knew the value of this one in particular. Don't really want to have to remove it from a working board.


Any help is appreciated!

[Richb77]

What variant was the board? Can you make out a number from the CAP on the replacement ?

If the replacement is the same measure it with a multimeter (YouTube can help with the method)

The MOST expensive fix will be a handful of caps from eBay which should cost no more than €1-2 and the pads look intact so your in a good position to repair it once the variant is known for reference :

[144TECH]

Find out the type of board, and get a diagram/datasheet of it,the part number should normally be in there, so you go from there.

[Gonce]

I've scanned over several documents on Adafruit's site and haven't found a schematic that matches this controller board.

The replacement has no marking on it at all. I've checked under magnification.
Don't you have to remove it from the board to get a good capacitance reading from a multimeter? I really don't want to mess up a second board lol.

Thanks both of you for the suggestions. I might just check out a variety of caps and go from there.

[abrugsch]

It's probably a decoupling cap which means any value around 10pf will be fine, in fact it will probably still "work" just some high frequency noise won't be suppressed

[Richb77]

What he () Said .

A multimeter check on board will be close enough to get you a good enough match.

I.e a reading of 7-14pF, use a 10pF and your so close it won't make any difference.