Dot matrix HV section resistor values

WPC-S and earlier (WPC-95 in brackets): R9 (R44) 1.8k ohm 5 W; R8 (R43) 4.7k ohm 5 W; R11 (R28) 120 ohm 5 W; R4 and R5 (R30, R31) 120 ohm 1/2 W; R3, R6, R12, R13 (R25, R26, R27, R29) 47k ohm 1/2 W.

Systems

• WPC Dot Matrix
• WPC Fliptronics
• WPC DCS
• WPC-Security (WPC-S)
• WPC-95

Related tips

• What the WPC dot matrix controller does
• Dot matrix display supply voltages
• Which dot matrix displays fit WPC games
• Dot matrix display blank or faulty
• Dot matrix display power connector pinout and voltages
• One or two display columns stuck on
• Resets caused by a failing dot matrix display
• Dot matrix display faults

Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Three, Clay Harrell (pinrepair.com)