Macintosh IIsi General Maintenance: Revision history

23 September 2026

• curprev 21:1021:10, 23 September 2026 Josh talk contribs 15,739 bytes +205 Add the board photograph as a component location map undo
• curprev 20:5420:54, 23 September 2026 Josh talk contribs 15,534 bytes +10,612 Rewrite against Apple's IIsi Service Source and the now-hosted Macintosh IIsi Developer Note: DELETED the '+5V 4.90-5.15V / +12V 11.9-12.7V' table and the claimed -5V and -12V rails - Apple publishes no rail tolerance and no adjustment procedure; the '160W Sony power supply' figure is unsourced, Apple's maximum-power specification for the machine is 100 W and the supply is Apple 661-1616, a Sony APS-06M; vinegar replaced with bicarbonate for a lithium cell; annual-inspection advice replaced w... undo

9 February 2026

• curprev 12:1312:13, 9 February 2026 Josh talk contribs 4,922 bytes −431 Removed AI writing patterns per WP:AIWTW undo
• curprev 12:0912:09, 9 February 2026 Josh talk contribs 5,353 bytes +5,353 Created Macintosh IIsi General Maintenance guide