Replace failed TIP122 drivers with TIP102

The TIP102 works identically to the TIP122 but is tougher, and the guide recommends it for every TIP122 replacement. Cross-references given: TIP122 = NTE261, TIP102 = NTE2343.

Systems

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

Related tips

• Quick test for shorted TIP122/TIP102 drivers
• Flash lamp stuck on and melting plastics on L/R reversed games
• A coil or flasher comes on and stays on at power-up
• A coil has power but never fires
• Use TIP102 when replacing a TIP122
• Diode-testing a TIP122/TIP102 driver on the board
• TIP102 is a good substitute for SE9302 coil drivers
• Test a TIP120/TIP102 solenoid driver with a meter

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