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8-bit acorn hardware • Re: BBC Model B wont boot

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Apologies yes i could have been more clear! This was at the minimal configuration as per your signature, plus the BASIC ROM, so:

Code:

REMOVED    - IC3 - System 6522 VIAREMOVED    - IC69 - User 6522 VIAREMOVED    - IC78 - 8271 chip or 1770/2 disk interface moduleOS ROM     - IC51 - ROM/EPROMBASIC      - IC52 - ROM/EPROMREMOVED    - IC88- ROM/EPROMREMOVED    - IC100- ROM/EPROMREMOVED    - IC101- ROM/EPROMNOT FITTED - IC89 -68B64 EconetREMOVED    - IC7 - Serial ULA 2C199FIXED      - IC4 - 6850 serialREMOVED    - IC73 - uPD7002 analogue to digital converterREMOVED    - IC98 - TMS6100 speech system chipREMOVED    - IC99 - TMS5220 speech system chipS9  - openS21 - nw to ne AND sw to seS25 - tried bothKeyboard - tried both connected and disconnected
Thanks!

Statistics: Posted by nicf82 — Tue Dec 03, 2024 7:29 am



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