Bally and Stern score display boards

Bally six-digit displays are AS-2518-21 and AS-2518-15 and the seven-digit board is AS-2518-58; Stern used the DA-100 six-digit board (and the DA-300 seven-digit board, page 54). The six-digit boards are functionally the same and interchange.

Systems

• Bally MPU AS-2518-17
• Bally MPU AS-2518-35
• Stern MPU-100
• Stern MPU-200

Related tips

• First checks before repairing Bally score displays
• Flickering score displays
• Replace a score display glass
• Making Bally and Stern 7-digit displays swap between makes
• One digit missing on a score display
• Score display J1 to MPU J1 connections
• Score display digit parts by position
• Score displays dim

Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part Three, Clay Harrell (pinrepair.com)