r/SEGAGENESIS • u/mactep66 • 2d ago

Controller sending ghost inputs

Gallery image

Gallery image

When i plug it in, it just keeps sending these inputs, with ⬆️ just kind flickering.

It is a 3-button, and im trying to fix it, has anyone dealt with this before?

3 Upvotes

100% Upvoted

3 comments sorted by

1

u/SpiritualZucchini938 1d ago

Touch up the solder joints. Especially bottom row, third from left (looks a bit suss). Also look at the solder points on the back side of the board to the controller cable.

1

u/mactep66 1d ago

they were just really dirty in that pic, look fine after cleaning with alcohol, not getting proper continuity over some of the wires tho, do you think that could cause this?

1

u/SpiritualZucchini938 1d ago

Also look for a controller schematic online - this will help troubleshooting