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C128 Fault Guide
Here are the common C128 chip failures to get you started cheat sheet style. For a more in depth guide look at this manual we have in the library. C128…
BBC Model B Repair
General NotesRandom long-term problems, especially with early machines, are mainly caused by degradation of socketconnections. Faults of this type cannot be diagnosed. If the following procedu P.: is adopted however…
Dragon 32 Repair
SOUND AND COLOUR FAULTS A. No Picture or Sound 1. Check transformer. 2. Check power supply circuit board. (a) Check PL10 (b) Test voltages (c) Check diodes. 3. Check RESET…
C64 Repairs
PLEASE NOTE THIS IS A TEST PAGE WITH CONTENT FROM RETROLEUM.COM AND WILL BE REMOVED From the outset, it should be noted that a (working) Commodore 64 will still boot…