Williams System 3 - 7: Revision history

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curprev 16:0116:01, 23 September 2026‎ Chibler talk contribs‎ 279,076 bytes +212‎ →‎Driver Board: Added drawing error in all WMS S3-7 driver board drawings.

curprev 15:0315:03, 10 September 2026‎ Chibler talk contribs‎ 278,864 bytes +50‎ →‎Reset Circuit Summary
curprev 14:5714:57, 10 September 2026‎ Chibler talk contribs‎ 278,814 bytes +126‎ →‎Connectors, connectors, connectors
curprev 14:5014:50, 10 September 2026‎ Chibler talk contribs‎ 278,688 bytes +1‎ →‎Add Fuses Between the Transformer Secondary and Backbox Bridge Rectifiers

curprev 16:3216:32, 25 July 2026‎ Chibler talk contribs‎ 278,687 bytes −11‎ →‎Quick Start: Repairing a Williams System 3-7 MPU

curprev 23:4723:47, 10 May 2026‎ Diz talk contribs‎ 278,561 bytes +326‎ →‎Boards - added other vendors

curprev 05:3805:38, 26 January 2026‎ Anastasio talk contribs‎ m 278,235 bytes 0‎ →‎Controlled lamps issue
curprev 05:3505:35, 26 January 2026‎ Anastasio talk contribs‎ m 278,235 bytes +609‎ Add Repair Log for controlled lamp issues

curprev 22:5922:59, 13 January 2026‎ Chibler talk contribs‎ 277,626 bytes 0‎ →‎Modification for Noisy Type 1 Sound Boards
curprev 22:5422:54, 13 January 2026‎ Chibler talk contribs‎ 277,626 bytes +4‎ →‎Modification for Noisy Type 1 Sound Boards
curprev 22:5422:54, 13 January 2026‎ Chibler talk contribs‎ 277,622 bytes +262‎ →‎Modification for Noisy Type 1 Sound Boards

curprev 20:1420:14, 16 November 2025‎ Chibler talk contribs‎ 277,131 bytes −64‎ →‎Lamp Voltage Supplies
curprev 20:0920:09, 16 November 2025‎ Chibler talk contribs‎ 277,195 bytes +329‎ →‎Flipper and Solenoid Voltage Supplies
curprev 12:4612:46, 16 November 2025‎ Chibler talk contribs‎ 276,866 bytes +151‎ →‎Power Supply Issues: Adding pics to help with power supply diagnosis...still working on this section.

curprev 14:0014:00, 29 September 2025‎ ForceFlow talk contribs‎ m 276,715 bytes −19‎ →‎Type 2 Sound Board

curprev 22:5522:55, 27 September 2025‎ ForceFlow talk contribs‎ m 275,985 bytes −138‎ →‎Type 2 Sound Board: cleaned up extra formatting

curprev 12:1912:19, 19 August 2025‎ Chibler talk contribs‎ 275,259 bytes +26‎ →‎Blue Flipper ROMs
curprev 12:1012:10, 19 August 2025‎ Chibler talk contribs‎ 275,233 bytes +334‎ →‎Blue Flipper ROMs

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