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Show new changes starting from 11:08, 25 September 2026

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25 September 2026

			00:20		IBM PC (5150) 2 changes history +219 [Josh (2×)]
					00:20 (cur \| prev) −79 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
					00:19 (cur \| prev) +298 Josh talk contribs (P4 verification: link the IBM manuals hosted on this wiki that document this machine (they were unlinked from every article))

00:19

IBM 5153 diffhist +143 Josh talk contribs (P4 verification: link the IBM manuals hosted on this wiki that document this machine (they were unlinked from every article))

00:16

IBM 5153 Color Display Service Manual (Sams) diffhist +3,616 Josh talk contribs (P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links)

23 September 2026

			03:42		IBM Color Graphics Adapter 3 changes history +4,258 [Josh (3×)]
					03:42 (cur \| prev) −422 Josh talk contribs (Drop the 5153 known-problems citation from the CGA page; the brown behaviour is cited to the schematic extract instead)
					03:42 (cur \| prev) +367 Josh talk contribs (Cite the minuszerodegrees dark-yellow-to-brown schematic extract for the brown behaviour rather than the 5153 known-problems page)
					03:20 (cur \| prev) +4,313 Josh talk contribs (Rebuilt from IBM's own Options and Adapters reference (now hosted here). Corrects the mode 4/5 palette table, which had the two palettes the wrong way round and called IBM's brown 'yellow'; adds IBM's colour-select bit 5 / bit 4 definitions, the jumper-selected 7x5 and 7x7 fonts in an 8x8 box, 7/14 MHz non-interlaced operation, the three video interfaces and the character-set breakdown; <ref>-cited)

			03:42		IBM 5153 2 changes history +6,657 [Josh (2×)]
					03:42 (cur \| prev) +346 Josh talk contribs (Cite the minuszerodegrees dark-yellow-to-brown schematic extract for the brown behaviour rather than the 5153 known-problems page)
					03:20 (cur \| prev) +6,311 Josh talk contribs (Rebuilt from IBM's own Options and Adapters specification (now hosted here), the hosted Sams service data and minuszerodegrees: vertical drive is 50/60 Hz not 60 Hz, 13-inch/340 mm CRT and 8x8 character matrix added from IBM, added the 5153's own mains supply and IBM's 450 V warning, replaced invented 'convergence trimmer' advice with the Sams symptom-to-designator table, corrected the brown/dark-yellow explanation and cited IBM's own palette wording; <ref>-cited)

03:37

IBM PC (5150) diffhist +10,287 Josh talk contribs (Rebuilt against IBM's 5150 Technical Reference (hosted here) and minuszerodegrees. The big correction: there was never a 130 W 'Type 2' power supply for the 5150 - the supply is ~63 W throughout, IBM put the 130 W unit in the XT for exactly this reason, and IBM's own hard-disk answer for the 5150 was the 5161 Expansion Unit. Also: three released BIOS revisions plus an 08/16/82 that may never have shipped (not 'four documented'); the 10/27/82 BIOS requires all four RAM banks populated; five RO...)

03:15

Upload log Josh talk contribs uploaded File:IBM Options and Adapters - IBM Color Display (5153).pdf (IBM Options and Adapters technical reference section, for citation by the IBM peripheral pages)

			02:15		CRT Discharge Procedure 2 changes history +11,081 [Josh (2×)]
					02:15 (cur \| prev) −45 Josh talk contribs (Remove self-referential wording per house rule)
					02:05 (cur \| prev) +11,126 Josh talk contribs (Rewrite against Apple Service Guide 1990 and Goldwasser CRT notes: corrected earth-return point (ground lug, never logic board), added never-wear-a-wrist-strap rule and implosion/goggles hazard, replaced unsourced 25 kV blanket with sourced per-class figures, replaced dead-short tool with resistive tooling, removed invented 30-min wait / 10-s hold / 10-15-min re-discharge interval, added ongoing shorting lead and aquadag mechanism; full ref citations)

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			03:42		IBM Color Graphics Adapter 3 changes history +4,258 [Josh (3×)]
					03:42 (cur \| prev) −422 Josh talk contribs (Drop the 5153 known-problems citation from the CGA page; the brown behaviour is cited to the schematic extract instead)
					03:42 (cur \| prev) +367 Josh talk contribs (Cite the minuszerodegrees dark-yellow-to-brown schematic extract for the brown behaviour rather than the 5153 known-problems page)
					03:20 (cur \| prev) +4,313 Josh talk contribs (Rebuilt from IBM's own Options and Adapters reference (now hosted here). Corrects the mode 4/5 palette table, which had the two palettes the wrong way round and called IBM's brown 'yellow'; adds IBM's colour-select bit 5 / bit 4 definitions, the jumper-selected 7x5 and 7x7 fonts in an 8x8 box, 7/14 MHz non-interlaced operation, the three video interfaces and the character-set breakdown; <ref>-cited)