How fast does a K7000 discharge?

BeagleBoy

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My K7901 has been turned off for not quite 3 weeks. I tried discharging it this evening, and didn't get a pop at all.

Is this common? Do they discharge that rapidly, or have I somehow (though I can't see how) screwed up the discharge?

Out of paranoia's sake, is there anything else I can (or should) do?

-Jim
 
the K7000 in my Street Fighter cab doesn't really do much of a pop at all, and that's like immediately after turning it off. it's a 25K7171.

I think some of them have the capability to discharge mostly on their own, I seem to recall there being some weird thing attached to that monitor. not quite like those bleeder boxes I've seen on U5000 flybacks (that do literally discharge the tube for you) but yeah...

maybe I'm talking out my ass there too. but no, I get barely any popping on mine. lol
 
you don't always get a pop when you do it...i've powered them off and pulled the anode cup off right away and still got no pop
 
That was my guess, but since this was my first attempt at discharging a monitor, it was a bit anticlimactic.

-Jim
 
A properly working K7000 has a built-in discharging circuit which discharges the tube when you shut it off. Even 5 seconds after power off will give no pop.

Now, a K7000 that has issues MAY hold a charge, so it's better to be safe than sorry if you are removing a chassis for diagnostics or repair...
 
A properly working K7000 has a built-in discharging circuit which discharges the tube when you shut it off. Even 5 seconds after power off will give no pop.

Now, a K7000 that has issues MAY hold a charge, so it's better to be safe than sorry if you are removing a chassis for diagnostics or repair...

I've always heard this, as well. But looking at the schematic, I can't seem to figure out which components, specifically, make up this "discharging circuit". Which are they?
 
I've always heard this, as well. But looking at the schematic, I can't seem to figure out which components, specifically, make up this "discharging circuit". Which are they?

I don't know specifically, but I believe they account for the same reason why a K7000 will blow up if the dag wire isn't connected, while models like the 4900 or G07 do not. With the dag wire connected, it completes a circuit to tube which apparently discharges the tube when powered down...
 
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