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Show new changes starting from 20:46, 24 September 2026
 
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23 September 2026

      21:55  Atari 1040STF 3 changes history −2,347 [Josh (3×)]
     
21:55 (cur | prev) +82 Josh talk contribs (Soften an inference about boot ROMs on the 1040 to what the sources actually support)
     
21:55 (cur | prev) +77 Josh talk contribs (Soften an inference about boot ROMs on the 1040 to what the sources actually support)
     
21:43 (cur | prev) −2,506 Josh talk contribs (Rewrite and cite: the US$999 bundle was the MONO SM124 and US$1,199 the colour SC1224 (page had them reversed); no -12 V from the internal PSU; RAM is 32x256kx1; real board numbers C070523/C070789/C103088. Source: Atari 520ST/1040ST FSM (newly hosted))
     21:53  Atari Falcon040 2 changes history +1,038 [Josh (2×)]
     
21:53 (cur | prev) −10 Josh talk contribs (Unlink non-existent Atari Jaguar page)
     
21:53 (cur | prev) +1,048 Josh talk contribs (Rewrite and cite: leads with the fact that the Falcon040 was never a product, only cancelled prototypes. 'PCI-compatible slots' now attributed as the source's own 'probably'. Added the third-party Afterburner 040 as the real route to a 68040 Falcon. Converted the bare external-link list to inline refs)
     21:53  Atari ST Book diffhist +1,788 Josh talk contribs (Rewrite from Atari's own STBook Hardware Specification and schematic C104446-001 (both newly hosted - board-level documentation DOES exist). Sound chip is the YM-3439 not the YM2149F; RTC is a Ricoh RP5C15; memory is pseudo-static and not reconfigurable; the panel is about 8 inches from Atari's own 640x400 at 0.27mm, not 10.4 inches (that is the Stacy's); ROM size is internally contradictory in Atari's document and both figures are given)
     21:53  Atari Stacy diffhist +599 Josh talk contribs (Rewrite and cite: the clock battery is a 3 V lithium primary (Atari BOM C103655-001 at LB), NOT a NiCd; the board's DC input spec is 11-18 V, not 'DC 18V 2.0A 36W' which is one adaptor. DELETED the '35,000+ units manufactured' figure - the source is Tramiel saying Atari had capacity for 35,000 a MONTH, and a 1990 START report says shipments were far below demand. Sources: Atari Stacy drawing package (hosted), Wikipedia's cited START/CHM material)
     21:48  Atari PC7 diffhist +907 Josh talk contribs (STRIPPED: no evidence found that an Atari PC7 ever existed. ataripc.net, atari-computermuseum.de, binaryvalue, Atari Museum and atarimuseum.nl all stop at the PC5; binaryvalue states there were five desktop models. Unsourced 386SX specification removed, searches recorded on the page, {{Unverified data}} applied. The 386SX Atari PC is the ABC 386SX)
     21:48  Atari PC5 diffhist +1,706 Josh talk contribs (Rewrite and cite: the PC5 shipped 22 Nov 1988, six months BEFORE the PC4; no onboard graphics; no external floppy port; 'PS/2-style expansion slots' removed as unsourced. Recorded the unresolved i386SX/i386DX conflict between sources and the impossible MS-DOS 5.0 attribution. Sources: atari-computermuseum.de, ataripc.net)
     21:48  Atari PC4 diffhist +1,385 Josh talk contribs (Rewrite and cite: the PC4 shipped May 1989, AFTER the PC5; VGA is 640x480 in 16 colours not 256; four 16-bit plus one 8-bit slot not six; it KEPT the Atari mouse port - the machine that dropped it is the Mitac OEM PC4 (Paragon 286VE), now documented separately on the page. Sources: atari-computermuseum.de (PC4 and PC4 Mitac), ataripc.net)
     21:48  Atari PC3 diffhist +955 Josh talk contribs (Rewrite and cite: five XT slots directly on the board (unlike the PC2's riser), 4.77/8 MHz switched in software, IEC C13 monitor outlet and 9-pin digital monitor port, real board numbers C100812/C103272, released summer 1988. Sources: atari-computermuseum.de, ataripc.net)
     21:48  Atari PC2 diffhist +794 Josh talk contribs (Rewrite and cite: the PC2 has ONE XT slot on the board carrying a four-slot riser card, not five slots on the board. Added the PC2-SD/DD/HD configurations, the U68 coprocessor socket and the real release date (March 1988). Sources: atari-computermuseum.de, ataripc.net)
     21:48  Atari PC1 diffhist +1,509 Josh talk contribs (Rewrite and cite: the PC1 does have expansion - two 50-pin internal headers taking a single XT card, not 'none'. Added the real chip set (P8272/WD8250/P8259/P8253/P8237/Atari C101683), the W3 coprocessor jumper, the Award 3.06 BIOS and Atari's Monitor Select switch table. US$699 was the EGA configuration. Sources: atari-computermuseum.de, ataripc.net)
     21:43  Atari 1040STFM diffhist −3,806 Josh talk contribs (Rewrite and cite: the 1040STFM was announced May 1988 and shipped March 1989, not 1987 - the March 1986 BYTE cover cannot have shown one. No -12 V from the internal PSU. Produced until Dec 1992. Source: Atari 520ST/1040ST FSM (newly hosted))
     21:43  Atari 520STFM diffhist −2,974 Josh talk contribs (Rewrite and cite: the internal PSU has NO -12 V rail (Atari's own drawing shows +5 V and +12 V only); +12 V is up to 1 A not 0.5 A; the drive is SINGLE-SIDED 360 KB before April 1988. Added RV301 adjustment and Atari's demand figures. Source: Atari 520ST/1040ST FSM (newly hosted))
     21:43  Atari 520STM diffhist −1,042 Josh talk contribs (Rewrite and cite from Atari's own FSM: modulator part and position, the PLL daughter board, the real symptom entry, US RF channels. Removed uncited chip table duplicated from the 520ST page)
     21:43  Atari 520ST+ diffhist −610 Josh talk contribs (Rewrite and cite: 520ST+ went on sale 28 Oct 1985, BEFORE the 1040STF, so it was not a response to it. RAM is 32x256kx1, not 16x256kx4. Sources: Atari 520ST/1040ST FSM and ST Engineering HW Spec (both newly hosted); atari-computermuseum.de)
     21:43  Atari 260ST diffhist −564 Josh talk contribs (Rewrite and cite: the 260ST has 512 KB, not 256 KB - Atari's Memory Configuration Register supports 128 KB/512 KB/2 MB banks only. Corrected release to Dec 1985, added the no-ROM-TOS difference and the monitor pin 8/pin 2 changes. Sources: Atari 520ST/1040ST FSM and ST Engineering HW Spec (both newly hosted))
     05:05  Template:Infobox computer diffhist +1,001 Josh talk contribs (Add the parameters pages were already passing but the template silently discarded - interface (37 pages), compatible (37), released (15), power (12), connectivity (10), graphics (9), input, rom, expansion, fpu, media, ports - plus alias handling and a parameter list, so that content reaches readers and refs defined in those fields stop vanishing)
      04:24  Atari 800XL 2 changes history +4,531 [Josh (2×)]
     
04:24 (cur | prev) +24 Josh talk contribs (Add connector reference designators (J4, J5/J6, J7, J8) from Atari's parts list)
     
04:08 (cur | prev) +4,507 Josh talk contribs (Rewritten against the Atari 800XL Field Service Manual: +5 V only through a 7-pin DIN, +/-2%, 1.2 A max, no +12 V rail and no on-board regulator; ROM corrected to 24 KB (16 KB OS + 8 KB BASIC); full IC location map with '(not used)' positions flagged; monitor jack output levels added; corrected the garbled '256 hues x 16 luminance' palette text; real <ref> citations)
     04:23  Atari Portfolio diffhist +3,305 Josh talk contribs (Rewritten against Atari's Portfolio Technical Reference Guide: 128 KB is four 32 KB SRAMs and 256 KB ROM is two 128 KB devices, 4 KB of RAM mapped at B000h as video RAM, 63-key switch-matrix keyboard, 60-pin expansion port, 6x8 character cell, software-controlled contrast; power documented properly (three AA cells stepped UP to 5 V, 5VS 40 mA at 5 V +/-5%, VRAM 4.5 V, VEXT, BATD, four power modes); lithium cells are inside the memory cards; corrected weight to 433 g and dimensions to 26 x 197...)
     04:13  Atari 65XEP diffhist −1,387 Josh talk contribs (Rewritten to what the January 1985 announcement actually said (5-inch monochrome CRT with two character sizes, built-in microfloppy, around US$500); removed the unsourced green-phosphor screen, battery pack and detachable-keyboard claims; bare-URL reference list converted to <ref> citations)
     04:13  Atari 65XEM diffhist −610 Josh talk contribs (AMY range corrected from '11 octaves' to 10.75 octaves, 4.8 Hz to 7.8 kHz, with sampling rate, dynamic range and clock, all from Creative Computing March 1985; team corrected (Steve Saunders added as co-architect, Jack not John Palevich, Nicolino did the single-chip implementation); removed the old-computers.com spec table including the wrong '1 A, 5 V' power figure; bare-URL reference list converted to <ref> citations)
     04:13  Atari 1450XLD diffhist −97 Josh talk contribs (Corrected the speech chip (SC-01 on the 1400XL, SC-02 on the 1984 1450XLD redesign), added the Dynasty and TONG board codenames, the WD2797 parallel disk controller and its 100 KB/s figure, the 2 July 1984 cancellation and the 800XLD/1650XLD/1850XLD context; added the power-supply warning; bare-URL reference list converted to <ref> citations)
     04:13  Atari 1400XL diffhist +95 Josh talk contribs (Corrected the announcement from 'Winter CES January 1983' to June 1983 (Atari Museum), added the 1201XL/1250XL original designations, added the documented warning that a standard XL/XE power supply destroys the speech chip and GTIA, removed unverifiable prototype specifications; bare-URL reference list converted to <ref> citations)
     04:11  Atari XE Game System diffhist +1,608 Josh talk contribs (Rewritten against Atari's C100417 schematic and Antic Aug 1988: two 64K x 4 DRAMs not eight 4464s; keyboard connector is a standard DB15, not a proprietary ribbon; power is a 7-pin DIN J7 not a centre-positive barrel jack; 100,000 units is the Christmas 1987 US launch-season figure, now cited; removed unsourced $149.95/$79.95 prices and 'Active active connector' text; added XG-1 light-pen register behaviour and the duplicate-designator warning)
     04:11  Atari 800XE diffhist +499 Josh talk contribs (Rewritten against the XE-series Field Service Manual: corrected board table (Atari documents the 65XE and 800XE jointly as CA200519 with two 64K x 4 DRAMs; CO70067 is a 130XE board), removed unverifiable FREDDIE/ANTIC/GTIA part numbers and unsourced market claims, added power, SIO and monitor-jack facts)
     04:11  Atari 130XE diffhist +3,700 Josh talk contribs (Rewritten against the XE-series Field Service Manual and Antic July 1985: removed stray 'active accent' text, corrected board-assembly table (CO70065/CO70067, CO70050 SECAM, C103579/CA200519), documented the four bank-switching modes and ECI pinout, MMU1 C061618 / MMU2 C025953, 1.2 A at 5 V machine requirement vs 1.5 A brick rating, SIO pin 10 ready / pin 12 unused; removed unsourced price and unverifiable PAL chip part numbers)
     04:11  Atari 65XE diffhist +4,929 Josh talk contribs (Rewritten against the XE-series Field Service Manual: ROM corrected to 24 KB (16 KB OS + 8 KB BASIC Rev C), not 16 KB as 10+6; power is +5 V through a 7-pin DIN from a brick containing the transformer, bridge and LM78S05 (5 V +/-5%, 1.5 A), no on-board regulator; SIO carries no supply rail; board assemblies CO70025/CA20097/CA200519 named; launch price sourced to Creative Computing March 1985)
     04:08  Atari 600XL diffhist +1,279 Josh talk contribs (Rewritten against the Atari 600XL Field Service Manual: power input is a 7-pin DIN (C061838) not a barrel jack, PSU CA061982 +5 V +/-2% 1.5 A, no on-board regulator; RAM is two 16K x 4 DRAMs; keyboard is 3/4-stroke 56-key not membrane; no monitor jack; full IC location map added; removed unsourced price, codename and the 400,000-unit production figure)
     04:08  Atari 800 diffhist +5,001 Josh talk contribs (Rewritten against Atari's 400/800 Field Service Manual (June 1982): removed the non-existent HELP key and 'built-in diagnostics' claim, corrected 10 KB OS ROM on a personality card and three RAM card slots (48 KB max), documented 9 V AC input and internal +5 V A/B, +12 V, -5 V rails and the cartridge-lid power interlock, removed unsourced launch price, added real <ref> citations)
     04:08  Atari 400 diffhist +4,733 Josh talk contribs (Rewritten against Atari's 400/800 Field Service Manual (June 1982): corrected power input (9 V AC transformer feeding on-board +5 V A/B, +12 V, -5 V rails, not a DC brick), removed unsourced price/date/model-number, removed non-existent image files, added Memo Pad power-up test and SALT II procedure (these machines have no built-in self test), added real <ref> citations)

22 September 2026

     23:00  Atari 65XE General Maintenance diffhist −2,708 Josh talk contribs (Rewritten and fully cited from Atari's XE field service manual and parts list. Corrected the power supply: +5V DC through a 7-pin DIN, not a barrel jack. Removed the fabricated capacitor table (C56 2200uF main filter, C57/C58 47-100uF) which contradicted the page's own capacitor guide, and the invented chip part numbers. Added the real board variants, self-test procedure and colour adjustment. Unverified data cleared.)
     23:00  Atari 65XE Capacitor Replacement Guide diffhist −1,273 Josh talk contribs (Rewritten and fully cited from Atari's schematics for all three 65XE assemblies (CO70025, CA20097, CA200519/C103579-001). Removed the fabricated table that listed C42-C65 as twenty-four 10uF 'SIO circuit decoupling' parts and C1 as 2200uF. Real list: C1 470uF/10V, C2/C3/C10/C79 22uF/16V, C24/C50/C98 10uF/16V, C19/C20 (and C22 except on CO70025) 4u7/35V non-polarised. Removed the invented PSU cap table and the two red links. Unverified data cleared.)
     22:47 Upload log Josh talk contribs uploaded File:Atari 130XE Field Service Manual.pdf (Atari 130XE Personal Computer Field Service Manual - covers 130XE, 65XE, 800XE and XE Game System boards)

21 September 2026

     21:50  Atari 65XE General Maintenance diffhist +20 Josh talk contribs (Verification drive: flag unverified component data pending check against a primary source)
     21:50  Atari 65XE Capacitor Replacement Guide diffhist +20 Josh talk contribs (Verification drive: flag unverified component data pending check against a primary source)
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