(Topic ID: 179913)

Weak flash on red 300 odds

By BlackCatBone

4 years ago


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  • 19 posts
  • 4 Pinsiders participating
  • Latest reply 4 years ago by bingopodcast
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Key West resistors for magic squares (resized).jpg
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Toasted coil in Key West - Mixer relay #4? (resized).jpg

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#2 4 years ago

Your spotting disc handles flash during coin cycles. If it is only that one and the socket is good, you either have a short with another rivet on the spotting disc or a cold solder joint or other problem on the flash rivet for 300 odds in red.

It should be documented in the manual - one wiper will handle flashes, and then you have to match up the wire color with the lamp for 300 odds (which will be shown on the schematic).

From there, you'll have to pull the spotting disc (most likely) to see what's going on.

#6 4 years ago

JKnPA Schematic shows the lowest odds in that section - so for example, the 64 is 64/144/300. All are lit by a single lamp in each color.

L12 shows the Red version of that - wire 38-6 comes off of the spotting disc and the red score disc to light it. If you look in the manual, you will see that pos 0 is hit with wiper E and F. Twice per full revolution will that 64/144/300 red lamp light.

Because the spotting rivet and score disc are electrically tied together, this prevents the flashing if the odds are already at that level - because the lamp is already lit.

#8 4 years ago

Hey, no problem - what I'm saying is that there is one lamp for that set of odds. There are not three separate lamps for 64/144/300 - only one bulb behind the glass.

My explanation is of how that bulb can flash or turn on.

#12 4 years ago

OK, now I'm intrigued. That coil is used as a resistor in the pics above. The other one appears to have been modified or is from later in the run when they just added a switch to cut power. Looking into it...

#13 4 years ago

Looking at the schematic, I see that there should be a resistor on each of the square index coils. IIRC, my Nightclub has this - all are wired together to a common (50V supply). Again, IIRC, the resistors on NC are on the back of the white board that folds down. Does Key West have those? They are visible without moving anything out of the way, typically... somewhat near the start, replay reset, etc. relays when the game is together.

#15 4 years ago
Quoted from JKnPA:

Getting back to the original problem.......... is the problem with this rivet on the 'Spotting disc' ?

Yep.

#19 4 years ago

That coil isn't factory (I don't think). I've never seen one, anyway. No idea what it's doing... Hooked to the start relay... Perhaps it was added to help power the squares on... Start? No idea, I'm sorry.

Part of the fun of fixing a game is trying to reverse any modifications and figuring out what they were intended to do. Normally, the modifications I find are related to preventing the grant of certain features. On screen games, 2 in the blue will often be disabled or extra portioning added.

To the bulb, wow. Yes, the Eiko bulbs are not very well made in comparison with older lamps, but I didn't realize they were that bad! Thanks for letting us know!

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