Creature from the Black Lagoon
Bally, 1992You're currently viewing posts by Pinsider cfh.
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On the point on the 7812 voltage regulator, which powers the optos, as mentioned from my repair guides. What it eludes to but doesn't actually say is that the C2 cap in circuit with the 7812 sometimes fails. This makes the 12 volts flutter which confuses the hell out of optos. this and bad "u" optics on the flipper boards can make a flipper coil hot. But as someone else said, also depends on your definition of "hot". Flipper coils will get warm from constant playing.
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