Adding jumper wires across DB1 and C4 (520-5047-00/-01/-02)
Steps
- Remove the power supply board.
- Run an 18-gauge wire between the DB1 bridge + terminal and the C4 capacitor + terminal, soldered at both ends.
- Run a second 18-gauge wire between DB1's - terminal (diagonally opposite its +) and the C1 capacitor - terminal.
- Refit the board. The wires carry the current if the board's solder joints later crack.
Systems
Games
- Adventures of Rocky and Bullwinkle and Friends
- Back to the Future
- Batman
- Checkpoint
- Guns N' Roses
- Hook
- Jurassic Park
- Laser War
- Last Action Hero
- Lethal Weapon 3
- Monday Night Football
- Phantom of the Opera
- Playboy 35th Anniversary
- Robocop
- Secret Service
- Star Trek
- Star Wars
- Tales from the Crypt
- Teenage Mutant Ninja Turtles
- The Simpsons
- The Who's Tommy Pinball Wizard
- Time Machine
- Torpedo Alley
- WWF Royal Rumble
Related tips
- A 520-5047-02 supply can stand in for a 520-5047-01
- Alphanumeric games need the 520-5000-00 supply
- CPU won't boot, 5V collapses under load: replaced bridge not joined on the top side
- DMD dark after work in the backbox: transformer wire pulled out of its plug
- Won't boot, only some lamps on: bad capacitor joints on the power supply board
- After a bulb change, coils dead and a flasher fires the knocker: blown supply fuse
- Power supply board versions are not interchangeable
- Three backbox bridges on 192x64 DMD games
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Two, Clay Harrell (pinrepair.com)