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A Bundle Of Questions
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SirPeale:
When a fuse blows, it's because it's being stressed past the point where it can carry current safely.  The whole point of a fuse is a safety point where we can destroy a .29 piece of equipment, rather than a $300 one.

In cabinets, if a fuse blows, you can get really lucky in that perhaps it was just a fluke that the fuse blew: there was a surge that made it blow, or perhaps the power supply went, taking the fuse with it before more damage could happen.

On a monitor, OTOH, when a fuse blows it usually means that components on the chassis have blown.  Check the bridge and the HOT.  You may have to unsolder the bridge to test.  I forget on a K4900 if it's an actual bridge or four diodes.  If it's four diodes you can just unsolder one end to properly test.
ArcadeNoob:
Alright, the advice so far is great.  But, on the power supply:  When I plug it in, it does nothing.  I thought that MIGHT be because the on/off switch is off....hence why i was asking whether or not you all knew of a location of one on a zaxxon cab.  If it was off, the power supply would not show up with any activity when tested, correct?
arcadepcnut:

--- Quote from: CheffoJeffo on July 10, 2006, 08:24:04 pm ---
--- Quote from: versapak on July 10, 2006, 07:55:18 pm ---A blown fuse means exactly that.
--- End quote ---

No, no, no, no, no.  :dizzy:

When spoken by a seller, a "blown fuse" (aka "probably just a puse") is an "as-yet-undiagnosed monitor problem that is most likely not a fuse since I would have taken 15 seconds and replaced the fuse instead of selling the whole damned machine with a farked monitor, but I'll say it's a fuse because that sounds easy to fix.".


--- End quote ---

This guy is EXACTLY right. If a seller is known to sell electronics or arcade monitors in this case and it is something broken as simple as a fuse he would have replaced it and got alot more for the machine. But when selling a seller would say its a fuse so the buyer things oh...I can replace that easy.
CheffoJeffo:

--- Quote from: arcadepcnut on July 10, 2006, 09:53:36 pm ---This guy is EXACTLY right. If a seller is known to sell electronics or arcade monitors in this case and it is something broken as simple as a fuse he would have replaced it and got alot more for the machine. But when selling a seller would say its a fuse so the buyer things oh...I can replace that easy.

--- End quote ---

BUT, having said what I said ...

I picked up my Asteroids at auction for much less than it should have gone for because it actually WAS a fuse ... the op who owned it had 3A fuses where there should have been 7A (and had a crappy power cord). In the preview, I played her, then the fuses popped. Got her home, replaced the fuses and presto magico ... Asteroids.

Can't trust nobody ... except my multimeter ...

Cheers.
Quarters:

--- Quote from: ArcadeNoob on July 10, 2006, 05:51:15 pm --- Is there a power switch on a zaxxon cab?

--- End quote ---
Is there a switch on top of the cab?
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