Replacing nine-pin resistor networks

Nine-pin networks are getting scarce. A ten-pin bussed part of the same value can be used by cutting off the extra pin; make sure it is the right pin, so the common pin still lands in the marked hole.

Systems

• Data East CPU Version 1/2
• Data East CPU Version 3
• Data East/Sega CPU Version 3b

Related tips

• Test a resistor network with a meter
• Bussed and isolated resistor networks
• Resistor networks in the switch matrix
• CPU connector CN8: switch column pins and wire colours
• CPU connector CN10: switch row pins and wire colours

Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Three, Clay Harrell (pinrepair.com)