Recap
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A 3DO FZ-1 bought as working had an intermittent fault. Leaking power stage capacitors were the cause, and replacing them exposed a failed regulator and blown fuse.
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A Retro Asylum Spectrum +3 gets the audio distortion fix, a SCART compliance fix, a full 3-inch drive refurbishment with a new belt and a keyboard clean.
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The parts have arrived for the smashed Mega CD. I recap both boards, fit a save battery and a new pico fuse, repair a broken track and live test it.
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A rusty, dented Mega CD 1 arrives in a bag with its battery torn off and every SMD capacitor leaking. I strip it down and work out what it needs.
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The final part of the dead 3DO FZ-1 repair. I test the removed capacitors, fit replacements, power it up and play some games.