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I was given a broken Macintosh IIfx motherboard from Maxwell battery leakage. Only one of the battery leaked, and not any IC were damage (I think). The most of the damage on the interrupt and reset switches. I cleaned the motherboard in IPA several times, I reflowed the legs of the IC’s...

UF8. I also remplaced UG8, just to be sure in the futur.

I fixed it by replacing one of the LS393 chip. It was damaged by leacking capacitors.

Hi everyone, For the past few days, my SE/30 hasn’t been displaying anything on the screen. I completely cleaned the motherboard with isopropyl alcohol and replaced the capacitors. It still boots and plays the startup chime, but nothing shows on the screen. I’m fairly certain the issue is...