Alphanumeric display board numbers
The alphanumeric display driver is A-12739; the dash suffix gives the number of extended displays (-1 none, -2 one, -3 two). The single display board A-12794 holds one 16-digit glass and the dual A-12793 holds two.
Systems
Related tips
- WPC alphanumeric display board high-voltage checks
- Alphanumeric display segments or digits missing
- Alphanumeric WPC games: weak or dead score displays
- WPC display and DMD controller board versions
- Gas discharge displays need high voltage
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part One, Clay Harrell (pinrepair.com)