Alphanumeric power supply CN5 pinout
Pin 1 ground, pin 2 not used, pin 3 -100 V, pin 4 +100 V, pin 5 key, pin 6 +5 V. Williams System 11 connector J5 uses the same layout.
The display power supply carries about 100 V or more; work on it with the game unplugged and let the capacitors discharge.
Systems
Related tips
- Check the ±100 V display supply at CN5
- Alphanumeric segments still missing: the UDN chips
- DMD power supply 520-5047 revisions by game
- Small 128 x 16 display connector J2 pinout
- Run alphanumeric displays at 91 V for longer life
- Swapping Williams and Data East alphanumeric displays
- Zener diodes D10 and D11 by DMD power supply revision
- Power supply CN1 pinout, pins 1-6
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Three, Clay Harrell (pinrepair.com)