I've been working on this problem for about three weeks now.

1) The upper right (shark) flipper stopped working. The upper right flipper stayed energized until fuse F1 on flipper board blew and flipper fell.

2) I replaced the TIP32c and TIP36c on flipper board and diode on shark flipper coil. Both transistors and fuse toasted after game powered back on.

3) Replaced TIP32c , TIP36c, 1N4004, resistor 47, 3amp SB fuse, and sr1 (2800b).

Power up, fuse and transistors ruined again....

Help please......!

flipperdiag001.png flipperdiag002.png

It was a bad upper right coil(shark flipper) that was blowing everything out. :/