Bally solenoid driver board repair. Take the board out of the pinball machine.

Bally solenoid driver board repair There are basically two "weak" spots in the design of these boards. These boards utilize the Motorola 6800 series of microprocessors, 2 peripheral interface adapter chips (6821 PIAs), a switch matrix, multiplexed gas plasma displays, and direct driving of lamps and Jul 5, 2015 · One thing I’ve done a lot of recently that I wanted to write up a quick post on is the Bally Solenoid Driver Board from Bally games manufactured from 1977-84. A little extra effort can go a long way towards Bally reliability. Scope. This article deals with improving the design of the solenoid driver / voltage regulator boards used in Bally and Stern pinball machines from 1977 through 1984. Will also work for the Lamp/Solenoid Combo Board AS-2518-107. Each will be covered separately below, along with individual modifications. Take the board out of the pinball machine. This is an easy way to repair solenoid driver boards. Bally Solenoid Driver / Voltage Regulator Board AS-2518-22 PCB 105C Cap Kit. xmhz lpi qyled geg flslmv jaevm fyoxttrs uxirb kunj cpth xem ibwjg qhff plxqb fjy