מחוז מימי מדבקת cpu williams system 11 ענף סיומת הבחנה
MPU011A- This completely redesigned board replaces Williams System 11A & 11B MPU / Driver Boards part number D-11883-xxx (where xxx is the game number).
Réparation Williams System 9 - 11 — Multibille.fr Wiki
System 11B MPU Battery Corrosion Repair
Leon Borre Williams System 11 Repair - PinWiki | PDF | Central Processing Unit | Diode
Williams SYSTEM 11 CPU boot up with a bad or incorrect Eprom/Rom - YouTube
Williams System Any 11 B cpu mpu Flat Rate circuit board repair | eBay