Atari 800 General Maintenance: Revision history

22 September 2026

• curprev 22:2122:21, 22 September 2026 Josh talk contribs 12,930 bytes +4,738 Rebuild from Atari 400/800 Field Service Manual (hosted): C98-C103 'filter caps' do not exist; '+12V at 4050 pin 1' and '-5V at 4050 pin 8' are wrong (4050 runs on +5V, pin 8 is ground); the 400/800 have no OPTION-key self test. Added Atari's Section 6 symptom checklist, interlock switch S201, module-bay cooling change, Rev A/B ROM warning; cited throughout undo

21 September 2026

• curprev 21:5021:50, 21 September 2026 Josh talk contribs 8,192 bytes +20 Verification drive: flag unverified component data pending check against a primary source undo

26 March 2026

• curprev 21:4421:44, 26 March 2026 Josh talk contribs 8,172 bytes −38 Removed Category:Atari Maintenance Guides undo

9 August 2025

• curprev 21:1821:18, 9 August 2025 Josh talk contribs 8,210 bytes −83 No edit summary undo Tag: Visual edit

9 May 2025

• curprev 18:5018:50, 9 May 2025 Josh talk contribs 8,293 bytes +39 No edit summary undo Tag: Visual edit
• curprev 17:4317:43, 9 May 2025 Josh talk contribs 8,254 bytes +8,254 Automated update by bot