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- 19:18, 24 April 2022 diff hist +19 Williams WPC →Special note Concerning Early RottenDog WPC-TH MPUs and NVRAM
- 19:18, 24 April 2022 diff hist +1,052 Williams WPC →Replacing the CPU RAM with non-volatile RAM: Special circumstances of RottenDog WPC-TH MPUs
- 19:04, 24 April 2022 diff hist -23 m Williams WPC →Replacing the CPU RAM with non-volatile RAM: Removed SIMTEK NVRAM as an alternative. They aren't reliable for this use.
- 19:01, 24 April 2022 diff hist -2 m Williams WPC →Built-in Switch Testing
- 18:14, 24 April 2022 diff hist 0 File:EarlyRDMPU.jpg Chibler uploaded a new version of File:EarlyRDMPU.jpg current
- 18:04, 24 April 2022 diff hist 0 N File:EarlyRDMPU.jpg
- 18:03, 24 April 2022 diff hist 0 N File:RD62256NVRAM.jpg
- 18:02, 24 April 2022 diff hist 0 N File:RD62256Socket.jpg current
- 17:51, 22 April 2022 diff hist -1 Gottlieb System 80 →Switch Matrix Wire Coloring
- 16:30, 22 April 2022 diff hist +47 General →Testing for Shorted Signals
- 11:33, 22 April 2022 diff hist -96 General →Testing for Shorted Signals
- 11:31, 22 April 2022 diff hist +251 General →Testing for Shorted Signals
- 11:30, 22 April 2022 diff hist -1,130 General →Testing for shorts on a PCB
- 11:28, 22 April 2022 diff hist +1,129 General →Testing an integrated circuit
- 11:18, 22 April 2022 diff hist 0 N File:SolderBridge.png current
- 19:07, 20 April 2022 diff hist +204 Data East/Sega →Sound Issues
- 19:04, 20 April 2022 diff hist +80 Data East/Sega →BSMT 2000 Sound Board Compatibility
- 19:01, 20 April 2022 diff hist +124 Data East/Sega →BSMT 2000 Sound Board Compatibility
- 20:04, 18 April 2022 diff hist +106 Williams System 9 - 11 →MPU Driver Boards
- 18:15, 12 April 2022 diff hist +164 Sega/Stern White Star Repair →Sound problems
- 16:51, 12 April 2022 diff hist 0 N File:XilinxCPLD.jpg current
- 12:25, 8 April 2022 diff hist +191 Williams System 3 - 7 →Displays
- 12:13, 8 April 2022 diff hist 0 N File:Bowler6DigitBottom.jpg current
- 12:12, 8 April 2022 diff hist 0 N File:Bowler6DigitFace.jpg current
- 20:56, 6 April 2022 diff hist 0 Sega/Stern White Star Repair →Adding a Second Backbox Speaker to some Sega Games
- 20:55, 6 April 2022 diff hist 0 Sega/Stern White Star Repair →Loud Hum and/or Distortion at Low Sound Levels
- 20:52, 6 April 2022 diff hist +69 Sega/Stern White Star Repair →Sound problems
- 20:49, 6 April 2022 diff hist +116 Sega/Stern White Star Repair →Failed power connector on display driver board (CN2)
- 20:47, 6 April 2022 diff hist 0 N File:CN2.jpg current
- 20:43, 6 April 2022 diff hist +1 Sega/Stern White Star Repair →Blank Display After "Splash Screen", Odd ball Messages (Failed 74HCT273 buffer IC on the MPU board)
- 20:43, 6 April 2022 diff hist +57 Sega/Stern White Star Repair →Failed 74HCT273 buffer IC on the MPU board
- 10:01, 31 March 2022 diff hist 0 File:NVRAM SMT Adapter.JPG Chibler uploaded a new version of File:NVRAM SMT Adapter.JPG current
- 09:59, 31 March 2022 diff hist 0 File:NVRAM DIP.JPG Chibler uploaded a new version of File:NVRAM DIP.JPG current
- 17:00, 30 March 2022 diff hist 0 Williams System 3 - 7 →Proprietary Numbers on Chips
- 16:59, 30 March 2022 diff hist +6 Williams System 3 - 7 →Proprietary Numbers on Chips
- 13:04, 25 March 2022 diff hist +9 Williams WPC →WPC Custom 10-Opto Board (Twilight Zone)
- 17:40, 24 March 2022 diff hist +541 Williams WPC →WPC Transformers
- 17:35, 24 March 2022 diff hist 0 N File:FactoryTestConnectorOrDeletedFeature.jpg current
- 20:27, 23 March 2022 diff hist 0 Data East/Sega →Solenoid Issues
- 20:27, 23 March 2022 diff hist 0 Data East/Sega →Alphanumeric Issues
- 20:26, 23 March 2022 diff hist 0 Data East/Sega →Outgassing Displays
- 20:26, 23 March 2022 diff hist 0 Data East/Sega →Periodic "Random" Slam Tilts
- 20:26, 23 March 2022 diff hist 0 Data East/Sega →Multiple Switches Reported from a Single Switch Closure
- 20:26, 23 March 2022 diff hist 0 Data East/Sega →On Board/Off Board Switch Matrix Problem Determination
- 20:25, 23 March 2022 diff hist 0 Data East/Sega →Using MOSFETs in the Lamp Matrix Circuitry
- 20:25, 23 March 2022 diff hist 0 Data East/Sega →General Illumination Issues
- 20:24, 23 March 2022 diff hist +6 Data East/Sega →Using a PC Power Supply for Bench Testing
- 20:24, 23 March 2022 diff hist +6 Data East/Sega →Connecting a Logic Probe to CPU Board
- 20:24, 23 March 2022 diff hist 0 Data East/Sega →Stuck Low Reset Signal
- 20:23, 23 March 2022 diff hist 0 Data East/Sega →Data East CPU Board Alkaline Damage Area
