Archived from groups: rec.games.pinball (More info?)
I finally finished the Data East Jurassic Park that I've been working
on. Some of the problems were at the time very perplexing, so I
thought some of you might like to know what they were and how they were
solved.
1. T-Rex was taking a second and sometimes a third dip after he ate
the pinball. It turns out that the problem was a sticky up switch.
T-Rex didn't recognize that he was upright, so the motor continued to
run until the switch finally activated.
2. The left flipper would sometimes lose power. Flipping it rapidly
would restore full power. I thought that this had to be a mechanical
binding issue, but it turned out to be an EOS switch (normally closed)
that was opening too early. Once the switch was adjusted, the problem
with the weak flipper went away.
Thanks to everyone who helped with advice on repairing this pinball
machine.
Reuben Edgar
San Antonio, TX
I finally finished the Data East Jurassic Park that I've been working
on. Some of the problems were at the time very perplexing, so I
thought some of you might like to know what they were and how they were
solved.
1. T-Rex was taking a second and sometimes a third dip after he ate
the pinball. It turns out that the problem was a sticky up switch.
T-Rex didn't recognize that he was upright, so the motor continued to
run until the switch finally activated.
2. The left flipper would sometimes lose power. Flipping it rapidly
would restore full power. I thought that this had to be a mechanical
binding issue, but it turned out to be an EOS switch (normally closed)
that was opening too early. Once the switch was adjusted, the problem
with the weak flipper went away.
Thanks to everyone who helped with advice on repairing this pinball
machine.
Reuben Edgar
San Antonio, TX
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