Data East and Sega sound boards by game

Laser War through Ninja Turtles use 520-5002 (dash -00 to -03). Batman through Tales from the Crypt, and also Maverick, use 520-5050 (dash -01 to -03) with two 27040 data EPROMs. 520-5077-00: Tommy, WWF, Guns N' Roses and Frankenstein, with four 27040 data EPROMs. 520-5126-02: Baywatch and Batman Forever. The dash numbers mostly mark larger EPROM sizes on later games.

Systems

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

Related tips

• Sound board versions are not interchangeable
• Check the sound board's regulated -5 V and +5 V
• The 520-5050-00 sound board variant
• No sound at all: check the -5 V regulator
• Loud hum from the speakers
• Sound board power input connector CN2
• No sound with all voltages present: the PALs
• No sound, only amplifier hiss with the volume up

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