Sockets and machine-pin strips to keep
Keep quality sockets with 8, 14, 16, 22, 24 or 40 pins; the 22 pin one is for the 5101 RAM and is harder to find. Machine-pin strips are better still: they snap to any length and let you solder from the top as well as the bottom.
Systems
Related tips
- Making a 9316-to-2716 adaptor socket
- Tell a -35/-133 MPU from a -17 by counting J5 pins
- Strip the MPU to three chips to get the first flicker
- Power and ground pins of the main MPU chips
- U9 pin 2 (halt) is not high
- U9 pin 5 (VMA) is not pulsing
- Make a stacked-socket adapter to run two 2716s on a stock -17 board
- Failed 9316 ROMs on a -17 board: use a socket adapter instead of modifying
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)