TECH Q: W-G deflection PCB in Space Duel

        Ahhh, fun with vector monitors...

        I powered up my new SPACE DUEL last weekend, and shut it down in a
hurry when I saw/smelled a puff of smoke coming off the deflection board.
:) Last night, I lifted the deflection board out of the chassis, and
inspected it to see what torched itself...

        The burnt component is R100, which turns out to be part of the
low-voltage supply. A quick check with a VOM confirms that Q100 is
completely shorted across both junctions...

        Question: is this just a random failure, or is there something else in
the system which might _cause_ this - and thus, cause it to happen again
once I replace the bad components in the low-voltage section - that I
should be sure to check? (I've already tested the obvious culprits, like
the deflection and power transistors; none of them appear to be shorted
internally or to the chassis...)

                
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"Petty bureaucrat... we'll see how he feels after he's been inside our giant
clothes dryer and his very garments imprison him like a mummy!"

"ZORT!! Then we can stick tickly things in his nose, right Brain?"

"Let's not be vindictive, Pinky."
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solarfox@DON'TMESSWITHtexas.net (Gary Akins jr.)
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Received on Wed Oct 21 21:08:33 1998