Holiday console hardware repair. Today: Sega Pico with broken lightpen button. Not sure what’s wrong yet.
Seems like the problem is with the micro switch inside the pen. Getting the pen to open means removing a 30yr old sticker. Heatgun helps here.
Got it opened without breaking the sticker
Also facing a sprite garbling issue. Likely needs replacement capacitors.
Digging deeper. This may be the most modern photography of a Pico mainboard on the Internet :-)
And it’s disassembled. Next up: deep inspection and capacitor inventory taking.
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