Make a replacement edge connector from a JAMMA harness connector

Steps

• Remove unwanted pins from a 28-pin double-sided JAMMA connector by sliding a jeweler's screwdriver or a 3/8" resistor lead between pin and wall from the card slot side and pulling the wire.
• Saw the end off and keep it, saw away the empty section, sand the cut faces flat, test the length on the board, then glue the end back on.
• For a single-sided connector, cut the wires from the unused side.
• Use heat-shrink on the soldered wire joins.

Systems

• Gottlieb System 80
• Gottlieb System 80A
• Gottlieb System 80B

Related tips

• A1-J4, A3-J1 and A3-J3 are double-sided edge connectors
• How double-sided edge connector pins are numbered
• Card-edge connectors are System 80's weak point
• Clean corroded card-edge fingers and connectors
• Gottlieb System 80 edge connector housings can be reused with crimp pins
• Control board A1-J1 power connector
• Control board display connectors A1-J2 and A1-J3
• Switch matrix connectors A1-J5 and A1-J6

Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)