Quoted from PantherCityPins:The issue is some of the coils don’t fire in solenoid test, you get double firing of other coils instead which he said was the relay not working and not switching between coils. I may have not understood him completely though.
The relays are known for developing cold solder joints; also the relay fires on its own transistor, and is also fused. So make sure to check the simple things first. The relays are fairly durable devices and despite all the times I've first thought to myself "must need a new relay", that has yet to be the case. Not ruling it out and your tech obviously has local experience, but the answer could be simple. I had a Space Station (same gen as Whirlwind) melt down on me once with all kinds of "relay" symptoms and it turned out to be a fuse.
As for the coil, does it get noticeably warmer than the ones that are working? If so that points to improper wiring, or an EOS switch adjustment. Over time they can go bad if issues are uncorrected. But again, check the simple freebies other already mentioned, first.
For your switches, make sure to consult the manual and the switch matrix. "Same string" could refer to a wire, or game logic (MPU board). On games of this era, the interconnect board in the "neck" of the cabinet is a known trouble point - make sure to check the connectors there.
Quoted from grantopia:"untested/was working when I put it in storage/probably an easy fix/just needs a fuse" means the game is broken and will need a bunch of work 99.9% of the time,
No kidding. If it worked, or was as easy to fix as "replacing a fuse", why leave the money on the table? Of COURSE a seller would test or fix it to have a working game worth more money if it was as simple as that!!!
Yet, I've found no matter what, always plan on an extra $100 no matter what condition the game is in:
- Broken? $100 to fix it playable
- Playable? $100 to make it 100% working
- 100% working? $100 to clean / shop it
- Clean? $100 to dress it (upgrades, etc)
- Dressed? $100 to nitpick and personalize...
It can become a money pit if you let it. So always keep things as simple as you can.
Bakersfield, CA
