Medium 128 x 32 display connector P1 pinout
Pin 1 -110 V, pin 2 -98 V, pin 3 key, pins 4 and 5 ground, pin 6 +5 V, pin 7 +12 V (Babcock displays only), pin 8 +68 V.
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
- Test a loose 128 x 16 display glass
- Voltages a small or medium dot matrix display needs
- Small and medium DMD power supply CN5 pinout
- Checklist for a dead small or medium dot matrix display
- Small 128 x 16 display looks garbled
- 128 x 32 display dead: check the PALs at U2 and U16
- Score display boards by game range
- Changing the display language
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Three, Clay Harrell (pinrepair.com)