In this video, I get to know the rare-to-me Commodore C128. Repairing the faulty power supply, then moving on to a bad ram chip on the motherboard, and finally a faulty CIA chip.

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RetroBitsTV Matt https://www.youtube.com/@UCnua6gZFiw77kxwNChkXGuw

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00:00 Intro 00:47 Power Supply Problems 08:29 First Switch On 11:16 Hot Switch 12:00 Second Switch On 13:06 Discovering the Bad Ram 15:14 Replace the Switch 17:38 Dead Test 17:59 Replacing the Faulty Ram Chip 20:50 Making a C128 Diagnostic Cart 22:29 Intermission - CIA Faulty 26:25 Conclusions

#c128 #commodore #retrorepairs