FET playfield driver boards from Guns N' Roses

Some under-playfield boards from Guns N' Roses use logic-level FETs driven straight from a 74LS373 latch, instead of the 2N4401, TIP102 and TIP36c chain. Fewer parts means fewer failures, but the solder joints still crack.

Systems

• Data East/Sega CPU Version 3b

Games

• Batman Forever
• Baywatch
• Guns N' Roses
• Mary Shelley's Frankenstein
• Maverick

Related tips

• Magnet driver MOSFETs on Last Action Hero and Guns N' Roses
• From Guns N' Roses the cabinet is pitched with levelers fully in
• Removing the backbox door on Guns N' Roses and later
• Guns N' Roses with a shaker motor was probably built for Japan
• Last Action Hero / Guns N' Roses: magnet dead or locked on
• Guns N' Roses: CPU and display EPROM types and latest versions
• Guns N' Roses: magnets blow their 2.5 A fuse in multiball
• MRB and PPB playfield power boards

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