High Voltage rebuild kit Williams WPC

24 piece electronic components rebuild kit for the High Voltage section of Williams A-14039 WPC system dot matrix controller boards.

This critical update kit is designed to prevent burnt circuit board damage from original components. Take a moment to inspect the rear side of the A-14039 controller board and you will see a blackened area under the high voltage circuit area.

Installation requires circuit board soldering skills and about 20 minutes.

NOTE:In some game manuals, D4 and D5 are correctly listed as 1N4758A, but incorrectly reference these diodes at 62V. The WPC Schematic manuals correctly lists these diodes as 1N4758A - 56V.

Kit includes:

• 1N4759A zener diode (1 piece) D3
• 1N4758A zener diode (2 pieces) D4, D5
• 1N4742A zener diode (2 pieces) D8,D6
• 1N4004 diode (1 piece) D7
• 2N5551 (MPSD02) transistor (2 pieces) Q2,Q10
• 2N5401 (MPSD52) transistor (2 pieces) Q4,Q5
• MJE15030 transistor (2 pieces) Q3,Q7
• MJE15031 transistor (1 pieces) Q6
• 120 ohm 1/2 watt resistor (2 pieces) R4,R5
• 47K ohm 1/2 watt resistor (4 pieces) R3,R6,R12,R13
• 56 ohm 1/4 watt resistor (1 piece) R7
• 4.7K ohm 5 watt resistor (1 piece) R8
• 1.8 Kohm 5 watt resistor (1 piece) R9
• 120 ohm 5 watt resistor (1 piece) R11
• .001 mfd 50 volt disc capacitor (1 piece) C11

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Reference:

• A-14039 Dot Matrix controller board
• 5075-12826-00 zener diode 62v 1 watt
• 5070-09054-00 diode 1N4004
• 5075-12824-00 zener diode 12v 1 watt
• 5075-12823-00 zener diode 56v 1 watt
• 5164-12154-00 transistor MJE15030
• 5164-12155-00 transistor MJE15031
• 5194-09055-00 transistor MPSD52
• 5164-09056-00 transistor MSPD02
• 5043-09845-00 capacitor .001mfd 50v
• 5010-10171-00 resistor 56 ohm 1/4 watt