Build Your Own Arcade Controls Forum
Arcade Collecting => Miscellaneous Arcade Talk => Topic started by: gio_aus on July 20, 2014, 08:32:38 am
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Hi guys,
Just scored a wwf superstars board which I am trying to repair. From what I can see there are two capacitors missing from one side, the rest of them seem pretty solid. Would anyone be able to tell me what caps I need to replace them? One is a 100uF16v which was loose on the board, the other I have no idea.
Thanks.
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bump
pm me if you own this board
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while i don't own this board, some simple sleuthing can figure this out. these just look like they are buffering the power coming into the board. so rating isn't real super important (such as a cap used in a timing circuit.)
since one of the missing caps is a 100uF16v cap, if you look at the back side of the board and note if the known missing capacitor value goes to the same places, just on the opposite sides of the board, you can figure out if it's (which it probably does, it likely just filters power to a components on opposite corners) it would be the same 100uF16v.
if it appears to take off somewhere else, it could be figured out by seeing where it leads to a regulator? an IC?
you can also power up the board and measure the power on the + lead hole of the cap location. as long as you don't exceed the voltage rating on the cap, you can replace it with something to test.
if it's 5 volts, a 10 or 16 volt would do fine there. pop a 100uF16v in there. if it's 12volts though, find a 100uF 25 or 32 volt cap to replace it.