Some weird-ass sh*t just happened with my Wells K7193

Kid Dynamite

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Some weird-ass sh*t just happened with my Wells K7193

I had a cab with a K7191 and another with a K7193. The cab with the K7191 was a keeper but the K7193 had a nicer picture. So I swapped the K7191 into the cab that had the K7193 in it and vice versa. The cabs were wired a little different at the monitor pinout with the K7191 cab having a jumper between hori/vert sync and the ground wire on pin 4 next to the blue signal. The cab with the K7193 was wired as shown here: http://jstookey.com/arcade/WG_25k7191/WG_25K7191_output.JPG

Aside from the small difference in configuration at the pinout the cabs looked the same from the power supply to the monitor wiring so I figured I'd just switch the configuration to what was used in the opposite cab for the swap and I'd be set, right?

WRONG!!!!!!!

The K7191 swapped in fine after reconfiguring the wiring to what was found in the cabinet that it was pulled from.

But when I put the K7193 in the other cabinet using the configuration pictured in the link above (as it was in the cab that it came from which it worked just fine in), SPARKS BURST OUT OF THE FLYBACK LIKE MAD!!!!!!!!!! What the f*ck just happened? Everything was identical to it's previous setup and the inverse swap worked just fine. I'm afraid to touch anything at this point. I really hope the monitor isn't toast now.

I should mention that the K7193 hadn't been used in at least a few months as it sat in my living room on it's own (chassis intact and connected). The K7191 was swapped into the cab that the K7193 came from the same day both monitors were pulled and it worked just fine. I also have another K7191 that just worked two days ago in the cabinet that the K7193 just blew up in. This was before I changed the monitor wiring configuration to what was found to be compatible with the K7193.
 
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did you make sure you used the iso in the cab.
K7000 chassis require it.

are the fly backs old if so then the probaly just went bad from beng old. as they were not that great to begin with.

i have seen this many times and had it happen in my games as well.

if you need them repaired i can do it for you.
shoot me a pm.

Peace
Buffett
 
Kid, "Non Ya Business" is funny and all, but if you want people to step up and do monitor repairs and the like then you need to list a real location.
 
did you make sure you used the iso in the cab.
K7000 chassis require it.

Yep, the monitor power from both cabs is running through a transformer. A K7191 ran just fine in this very same cab just a few days ago with it's previous wiring configuration.
 
are the fly backs old if so then the probaly just went bad from beng old. as they were not that great to begin with.

i have seen this many times and had it happen in my games as well.

Not sure how old the flyback is, didn't look cracked prior to powering it up. The monitor worked fine the last time it was powered up, now that I think about it, that was actually about 8 months ago. Maybe you're right. Man, I thought it was just a few months.
 
Can the tube from a K7193 work with a K7191 chassis? I've got two working (last I checked) K7191 monitors with less than ideal tubes. Can I swap? The yoke cable and power connector are the same configuration.
 
Can the tube from a K7193 work with a K7191 chassis? I've got two working (last I checked) K7191 monitors with less than ideal tubes. Can I swap? The yoke cable and power connector are the same configuration.

Everything about a 7193 and a 7191 is interchangeable.

Edward
 
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