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19:33, 17 April 2025 Josh talk contribs created page Commodore PET 4000 Series Troubleshooting Guide (Created page with "This guide provides a comprehensive troubleshooting reference for the Commodore PET 4000 Series (models 4016, 4032, etc.). It covers known quirks and fault modes specific to the "Fat 40" models with 6545 CRTC, 40-column video, and BASIC 4.0 ROMs. For cleaning and chip reseating techniques, see Commodore PET 4000 Series General Maintenance. To consult schematics during fault finding, visit Category:Commodore PET 4000 Series Schematics. For recapping procedures,...")