Gottlieb "Surfer" help

dbpbandit

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Hey Guys, I'm working on a Surfer and I need a schematic, anyone know where I can find one or have a scan?

It's got a problem with the Pop Bumpers, one works and one doesn't. I don't think the coil is bad and I think that there may be a problem with the switches. On the bumper that does work, when the top switch is closed the coil engages and opens the eos switch. (normal operation) On the one that doesn't work, the eos switch is open and so is the upper switch, (shouldn't it be closed) however, if I close the eos switch the other (working) bumper runs like a machine gun. Any suggestions? Thanks.

-Dave
 
Hey Guys, I'm working on a Surfer and I need a schematic, anyone know where I can find one or have a scan?

It's got a problem with the Pop Bumpers, one works and one doesn't. I don't think the coil is bad and I think that there may be a problem with the switches. On the bumper that does work, when the top switch is closed the coil engages and opens the eos switch. (normal operation) On the one that doesn't work, the eos switch is open and so is the upper switch, (shouldn't it be closed) however, if I close the eos switch the other (working) bumper runs like a machine gun. Any suggestions? Thanks.

-Dave

Pinball Resource for the schematic.
 
Check the coil on the Pop bumper to be sure you don't have a broken winding.
 
I checked the coil with my DMM but it's still in circuit, is that a good test or do I need to pull it? Thanks.

Yes, test should be good if you compare the reading to the other coil while it is also in circuit.

I just had a chance to look at the schematics. The following description of operation uses the same nomenclature (CAPATALIZED) as found on the schematic:

Activation (closing the normally open sw) of either the LEFT "POP BUMPER" SW or RIGHT "POP BUMPER" SW will energize the B relay. This relay will stay energized through the hold-in B contact via the normally closed ON LEFT "POP BUMPER" and ON RIGHT "POP BUMPER" switches (eos switches). The B relay also has contacts to energize both the LEFT "POP BUMPER" and RIGHT "POP BUMPER" coils. Both of the pop bumpers must stroke and open the normally closed eos switches to break the hold-in circuit to deenergize the B relay and thus deenergize the pop bumper coils.

It sounds to me like one of your pop bumpers was not working, so someone adjusted the normally closed eos switch on that pop bumper so that it would stay open. That way the other eos switch could still break the hold-in circuit.

If the coils both read the same, check the B relay switch that is supposed to energize the non-working pop bumper. It might need to have the gap adjusted.
 
Cool, thanks for the help. I'll check that B relay and make sure it's adjusted properly. I did check both coils (in circuit) and they both had the same results. Thanks again...

-Dave
 
So I finally got around to working on this one again. I replaced the right pop bumper coil, checked all of the connections, cleaned and adjusted all the relay contacts, can't find anything that looks out of place. However, the right pop bumper still isn't working (only the left one) AND if I close the eos switch on the right pop bumper the left one goes nuts. I also checked the B replay as you suggested, looks good and seems to be working wit the exception of the right pop bumper, any suggestions? Thanks.

-Dave
 
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