On the picture to the right, these are the fuses located in a Bally / Williams game from the early 90’s. A Williams / Bally backbox loaded with a plethora of fuses. I would not trust having the correct fuses installed on this one. This author replaced all the plugs and pins to get this working. Note in this photo, some prior owner soldered the wires directly to the plug pins rather than replacing a charred plug. This is where the fuses are located on the first generation Bally SS pins. These are located behind the backglass behind a protective metal cage to protect from the shock hazard (later Bally pins have this circuit board and fuses below the playfield). On the photo to the left are the fuses located on the power supply board for a early Bally SS pinball machine. This holds down the lockdown bar which is at the bottom of the playfield glass. If your playfield is dead, this is the one to search for.Ģ) Look for the lockdown lever to the right of the open door (see opening the pinball machine). A fuse almost hidden on the bottom of the playfield of a Bally machine from the late 70’s to mid- 80’s. Usually, it is locked and you will need the key. This is the door where the coins would be inserted. The main fuse is on the lower left.ġ) Open the lower front coin door. These fuses are located on a board below the playfield.
The location of fuses in a Bally pinball machine from the late 70’s to the mid- 80’s. Prior to starting, make certain there is enough room in front of the machine equal to the length of playfield glass, so it can be pulled all the way out and safely removed. The first step to doing any type of pinball machine maintenance is to open the cabinet. The voltages present are potentially lethal.
Do not attempt to replace fuses with the power on. Do not attempt to test fuses with the power on if you are not qualified. See the caution at the beginning of this article. Note that several hundred volts are present on the surrounding boards below.
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