Tempest K6100 fuse F100 - monitor working without it??

westal_sage

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Tempest K6100 fuse F100 - monitor working without it??

I am having this problem with some Tempest screen jitter and it was suggested that I ensure the chassis mounted xsistors were sucurely mounted. After missing it on first inspection, I later noticed that one of them was indeed loose as all hell - Q102 I believe.

I found it loose by fiddling with it with the game off. The screws to tighten were hard to get to so I figured I would deal with it later. Well the next time I turned the game on, both F100 and F101 on the monitor blew right away.

So I figured I had shorted the loose Q when I had fiddled with it. I dealt with it and got the Q secured and ensured no shorts. But wouldn't ya know it, I had only 1 5A fuse in the toolbox. I thought...well put it in F101, power up, and at least make sure it doesn't blow.

Well everything works great with no fuse at all in F100. I thought maybe somebody had jumped it or something, but nope thank goodness nobody did that sort of hack. Why would the monitor work seemingly perfectly without that fuse?
 
I stopped by the Shack today and picked up some fuses. As I suspected, I put 1 in F100 and she didn't blow - no problems at all. It must have been that loose Q I was messing with that is now secure to the frame.

But I still wonder - why would things work without the F100 fuse present?
 
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