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Museum of the Game® & International Arcade Museum® Forums
Working on a k4915 medium res. Picture is shrunken and has a wave to it. It is acting like the voltage regulator is bad. R503 is mounted on the side on this one. 98v on the fuse side, ~149v on the opposite side. Replaced the VR and same issue and voltages. Reflowed the VR connections to the board, checked the sockets for the VR and they have good continuity. Full cap replacement, C507 was replaced & filter. All ceramic resistors measure good. Any idea what I should be checking next?