BBC Micro B+ Troubleshooting Guide: Difference between revisions
Expand troubleshooting: RIFA PSU recap (before power-on), video-ULA continuous-tone fault, core logic reseat; cited (Tynemouth/BreakIntoProgram/Retro-Kit) |
Add representative photo (Wikimedia Commons, attributed on file page) Tag: Manual revert |
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[[File:BBC Micro B+ (photo).jpg|thumb|right|300px|BBC Micro B+. Source: Wikimedia Commons.]] | |||
This guide documents fault diagnosis for the '''[[BBC Micro Model B+]]''' and '''B+128'''. Many faults are shared with the [[BBC Micro Model A/B|Model B]], with B+-specific failure modes — shadow RAM, sideways workspace RAM, the WD1770 floppy controller, and the relocated sideways ROM sockets — called out separately. | This guide documents fault diagnosis for the '''[[BBC Micro Model B+]]''' and '''B+128'''. Many faults are shared with the [[BBC Micro Model A/B|Model B]], with B+-specific failure modes — shadow RAM, sideways workspace RAM, the WD1770 floppy controller, and the relocated sideways ROM sockets — called out separately. | ||