Gottlieb System 1 Power Supply Repair

The gottlieb system 1 power supply is a fairly robust device. Gottlieb system 1 power supply schematic with voltages. You can click on the image to see the full size view of the schematic which can be saved or printed.

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In order to get to the solder side of the board to remove any suspect components the power supply must be taken apart.

Gottlieb system 1 power supply repair.

Power supply board overview. However it is one of the trickier boards to work on because of the way the regulator is mounted through the heatsink and onto the pcb. 4 3 3 recommended power supply updates repairs. A gottlieb system 1 power supply can be repaired refurbished for a only a few dollars in parts.

Free shipping on many items browse your favorite brands. A simple cure for the system 1 and 80 x regulator supply ground problems is to connect the ground plane of the regulator circuit board to one or two of the studs that the securing screws use to hold the circuit board to the regulator s heat sink and then making sure that the heat sink frame is connected to the cabinet ground plane. Untested gottlieb pinball system 1 power supply 12 21 2188 00 parts repair 1978. New redesigned power supply for gottlieb system 1 plug and play.

But it certainly is not perfect. Remove the original power supply board from the heatsink plate and install this board using the same mounting holes and screws. Gottlieb system 1 sound board original. Heck it s not easy to work on either.

New design uses new components and runs much cooler. I also include a pdf of the schematic. The first picture below is the system 1 power supply with voltage notations plus other info.