Archived from groups: rec.games.pinball (More info?)
The board driving the motor (520-5065-00) had 2.5A fuse #3 blown.
After replacing the fuse, motor started to show signs
of life. It would move half a turn in one direction, and then half a
turn in the other direction, and so on. I believe the problem is in
the motor itself, fuse had blown to protect the winding. Anybody had
similar problem? I read few posts indicating that brushes are the most
common problem with this motor. If it is brushes, where do I get a
replacement? Also, looking at the schematics not sure why there are
three diods at this board one of which doesn't seem to be connected
anywhere. Transistor clearly turns it on and off, what are the diods
for? And why 9V AC is shown on schematics at the diods if this is a DC
motor?
The Dino, on the other hand, is working fine. I will be stripping the
playfield and cleaning it. Any words of caution in dealing wit the
Dino? Should I leave it alone or take it off the playfield, take it
apart, and try to clean it?
Thanks for your help.
The board driving the motor (520-5065-00) had 2.5A fuse #3 blown.
After replacing the fuse, motor started to show signs
of life. It would move half a turn in one direction, and then half a
turn in the other direction, and so on. I believe the problem is in
the motor itself, fuse had blown to protect the winding. Anybody had
similar problem? I read few posts indicating that brushes are the most
common problem with this motor. If it is brushes, where do I get a
replacement? Also, looking at the schematics not sure why there are
three diods at this board one of which doesn't seem to be connected
anywhere. Transistor clearly turns it on and off, what are the diods
for? And why 9V AC is shown on schematics at the diods if this is a DC
motor?
The Dino, on the other hand, is working fine. I will be stripping the
playfield and cleaning it. Any words of caution in dealing wit the
Dino? Should I leave it alone or take it off the playfield, take it
apart, and try to clean it?
Thanks for your help.
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