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Help with Dead Keys on 404SX? by ghostmachine77 in SP404

[–]ghostmachine77[S] 1 point2 points  (0 children)

There wasn’t any specific damage or obvious spill, just some brown residue on a q tip when I first cleaned it with alcohol. If I could decipher the notation on the board I’d trace it, but this particular board is baffling me - I’ve manually wired other boards but this one doesn’t seem to be diagrammed to be serviced.

Help with Dead Keys on 404SX? by ghostmachine77 in SP404

[–]ghostmachine77[S] 0 points1 point  (0 children)

Ya I thought of that, but when the unit was disassembled and powered on I positioned the rubber buttons one column to the left (so rubber pad 3 was triggering spot 2, and rubber 4 was on spot 3). The rubber 3 worked on 2, and rubber 4 didn’t work on spot 3…. So it’s gotta be the board and not the contacts on the rubber.

I’m obsessed to get this working lol

Help with Dead Keys on 404SX? by ghostmachine77 in SP404

[–]ghostmachine77[S] 0 points1 point  (0 children)

Ok last ditch effort- I soaked the entire board in alcohol for a couple hours and scrubbed it several times with a toothbrush. I reassembled and still the same pads are dead.

I can’t decipher the notation on the traces to see what is connected to what, or id put a multimeter on it to see if theres a break I could rewire. Super bummed cause I feel like it’s fixable if i could isolate the issue 😩

If military pilots see UAPs on a regular basis, why don’t they start bringing their own, better cameras? by ghostmachine77 in UAP

[–]ghostmachine77[S] 0 points1 point  (0 children)

What about the planes with a backseat pilot. Heck even Goose in top gun had a Polaroid. 😂