Reseating socketed chips
Steps
- Switch off and ground yourself.
- Note the orientation notch or dot on each socketed chip.
- Ease each socketed chip out and press it back in, keeping every leg straight.
- Make sure each chip goes back the same way round; a reversed chip can damage the circuit.
Touch the cabinet ground before handling boards or chips; static can destroy solid-state parts.
Systems
- Williams System 3
- Williams System 4
- Williams System 6 / 6A
- Williams System 7
- Williams System 9
- Williams System 11
- Williams System 11A
- Williams System 11B
- Williams System 11C
- WPC Alpha-Numeric
- WPC Dot Matrix
- WPC Fliptronics
- WPC DCS
- WPC-Security (WPC-S)
- WPC-95
- Bally MPU AS-2518-17
- Bally MPU AS-2518-35
- Stern MPU-100
- Stern MPU-200
- Bally 6803
- Gottlieb System 1
- Gottlieb System 80
- Gottlieb System 80A
- Gottlieb System 80B
- Gottlieb System 3
- Data East CPU Version 1/2
- Data East CPU Version 3
- Data East/Sega CPU Version 3b
- Capcom
Related tips
- Checking and reseating solid-state board connectors
- The CPU memory battery is built into a non-socketed RAM chip
- Spare chips for System 1 boards
- Which spider chips fail and why
- Remove an old chip socket
- What the WPC custom chip does
- System 80 CPU board main chips
- Socketing a replacement spider chip
Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)