Jurassic Park
Data East, 1993Hey guys i am new to the site and have read up on a bunch of your posts. Here is my problem. When playing the game, every once and a while the left flipper will be dead. No noise, no movement nothing. If i flip the right flipper a few times it fires right back up. However, if i hold the right flipper up the left one will never come back and stays dead. Any suggestions? Thanks
Bad or dirty EOS switch (normally closed) will cause this. Test by jumpering the EOS switch (safe to do because the flipper board switches to low voltage after a set amount of time no matter what).
Yes. a bad EOS will cause the flipper not to fire. If it still does not, the flipper board inside the cabinet on the left may be bad. Check for the LED on the board. It should flash once if you press the flipper button. The right side will have 2 LEDs that flash
Did you try jumpering the EOS switch to make sure it's okay? I thought mine was okay but it wasn't, I put the alligator clip jumper accross it and all my flipper problems went away. Did you check the fuse clips on the flipper board too, it's unlikely that's the problem but they are notoriously weak if they haven't been replaced yet.
I have had several issues with my JP and they always seem to stem from the EOS switch, unfortunately these switches have to be well maintained for the flipper to do anything, I think this was configured like this because of the raptor pit, if the ball has enough force to push down the flipper it needs to re-engage the high voltage.
Quoted from fusion301:I have had several issues with my JP and they always seem to stem from the EOS switch, unfortunately these switches have to be well maintained for the flipper to do anything, I think this was configured like this because of the raptor pit, if the ball has enough force to push down the flipper it needs to re-engage the high voltage.
sounds like it may be worth just rebuilding the flippers anyway and putting new EOS on.
Quoted from bobukcat:Did you try jumpering the EOS switch to make sure it's okay? I thought mine was okay but it wasn't, I put the alligator clip jumper accross it and all my flipper problems went away. Did you check the fuse clips on the flipper board too, it's unlikely that's the problem but they are notoriously weak if they haven't been replaced yet.
i am fairly new to this, where should i jumper from?to?
Quoted from Bwheels:i am fairly new to this, where should i jumper from?to?
Just jumper across the two switch solder joints to ensure you have a "closed" switch.
Quoted from fusion301:It will most likely stop working after a bit of extended play, order the correct EOS switches to have on hand.
Thank you I will right now
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