Small 128 x 16 display connector J2 pinout
Pin 1 +5 V, pin 2 logic ground, pin 3 key, pin 4 +12 V, pin 5 +68 V, pin 6 -98 V, pin 7 -110 V, pins 8 and 9 high-voltage ground.
The display power supply carries about 100 V or more; work on it with the game unplugged and let the capacitors discharge.
Systems
Games
Related tips
- Test a loose 128 x 16 display glass
- Small 128 x 16 display looks garbled
- Replacing R95 on the small display board without lifting traces
- Small display much too bright (wrong D10 on a -00 supply)
- Small display shows vertical lines
- DMD shows lines or garbage and no controlled lamps light
- Which DMD brands are hit by a blown lamp fuse
- Dot matrix shows lines or lights solid, and no CPU lamps work
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part Three, Clay Harrell (pinrepair.com)