Bally pinball machine8/7/2023 ![]() ![]() Bridge Rectifiers: keep a few 35 amp, 200 volt (or higher) bridge.Note the 1N959B is mis-labeled in the manual as "1N9598". This can be replaced with a 1N4738A diode (8.2 volts, 1 watt).Ī 1N4739A (9.1 volts) can be used too, as this would hold the RESET line low RESET line low for a short time while the power supply and its associated filter capacitor Diode: the diode on the MPU board at VR1 (in the reset section) isĪ 1N959B (8.2 volts, 1/2 watt).Diodes: keep a few 1N4004 and 1N4148 (1N914 or NTE519) diodes around.It looks like a chip, but it's actually several CA3081 or NTE916 (used on the Solenoid driver to drive coils).Values except the TIP102 is rated at 12 amps, while the SE9302 is rated at 10 amps. In so many other pinball games, I would just buy them. SE9302 or NTE263 or TIP102 (used on Solenoid driver to drive coils).MPS-A42 or NTE287 (used on Display driver board).2N5401 or NTE288 (used on Display driver board).MCR106-1 or NTE5411 (used on Lamp driver board for feature lamps).Ī silicon controlled rectifier.2N5060 or NTE5400 (used on Lamp driver board for feature lamps).2N4403 or MPS-3702 or NTE159 (used on MPU board).Transistors and Silicon Controlled Rectifiers (SCR): keep a few of each of these around:.20 amp fast-blo (F5, for the general illumination).10 amp fast-blo (F1, for the CPU controlled lamps).7 amp fast-blo (F4, for the solenoids, if game has 4 flippers).6 amp fast-blo (F4, for the solenoids, if game has 3 flippers).5 amp fast-blo (F4, for the solenoids, if game has 2 flippers).4 amp fast-blo (F3, for the unregulated +5 volts).3 amp slo-blo (F6, for the incoming 120 volts AC).3/4 amp slo-blo (F2, for the display high voltage).Fuses: I would have five of any needed value on hand at all times.#47 light bulbs: Seventyfive is plenty to do most games.ĭo not use #44 bulbs in these Bally games as they consume more power,Īnd the power supply is already over-stressed.On-hand to make things easier and cheaper. When fixing electronic pinballs, I would highly recommend having some parts These specialized electronics tools are needed.ġc. Right Angled Screwdriver: both phillips and flat head.The curved and straight versions if possible. Allen Wrenches: get an assortment of American sizes.Wrenches: 3/8", 9/16", 5/8" required, other sizes suggested.Screwdrivers: small and medium size, phillips and flat head.Luckily, mostĪre not that specialized and are easy to get.įor details on the basic electronics tools needed. I do assume you can solder and use the basic features of aĭigital Multi-Meter (DMM) such as measuring voltage and resistance.įixing electronic pinball games will require a few tools. Little experience in fixing pinballs is assumed. Getting Started: Experience, Schematics, Manuals. Locked-on or Not Working Feature Lights (Lamp Driver board)ġa.Locked-on or Not Working Coils (Solenoid Driver board).Converting a -133 MPU (Baby Pacman) to a -35 MPU.Stern M-200 MPU Jumpers (using a Stern M-200 in a Bally Game).Game ROMs, EPROMs, and Jumper - the Basics.Fixing the MPU (LED flashes and the such).Upgrading the Voltage Regulator/Solenoid Driver Board.Removing the MPU Battery and Fixing Corrosion.Power Supply Power Distribution & Fuses.Het opsporen van fouten flink vereenvoudigd is. Speciale dank aan Leon Borré voor het schrijven van testsoftware waarmee Gespecialiseerde reparateur zoals de Flipperwinkel Je kunt soldeerwerk en printplaatreparatie in zo'n geval het beste door Vaardigheid in solderen hebt kun je dit beter niet zelf proberen.ĭe meeste professionele reparateurs nemen GEEN printplaten aan die doorĮerdere reparatiepogingen vernield werden (gehacked) Games use nearly identical electronics, these gamesĪls je geen ervaring hebt in het repareren van printplaten, dus een goede This document is a repair guide for Bally electronic pinball Het aanleveren van technische informatie van duizenden flipperkastliefhebbers en PINBALL: Repairing Bally, Stern Pinball Games 1977-1985, part one ![]()
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