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SF2 World Warrior C board - simple repair
Posted: February 20th, 2017, 9:25 pm
by NoAffinity
Got this C board as part of a non-working board. CCX had been amputated from the board, with its legs still connected at the solder joints. I pulled CCX from another non-working C board, soldered it on, and lo and behold, a known good A+B set booted right up and ran with no problems with this repaired C board. As you can see, the C board apparently took some damage, which likely caused the CCX to disappear. I tested all lines around apparently damaged areas, and confirmed no traces were damaged.
Re: SF2 World Warrior C board - simple repair
Posted: February 20th, 2017, 10:05 pm
by leonardoliveira
CCX is just a power bypass capacitor. Usually it missing is not enough to cause a fault.
Re: SF2 World Warrior C board - simple repair
Posted: February 21st, 2017, 1:43 am
by NoAffinity
leonardoliveira wrote:CCX is just a power bypass capacitor. Usually it missing is not enough to cause a fault.
Well, it wasn't working with a known good A+B set, before replacing CCX. In fact, I tested it with (2) different known good sets. I made no other repairs to the board, and now it's working.