Interesting observation, question

I have noticed on these Zoo keeper/Qix boards (BTW, the second level of
Dante's hell) and I've run into now three boards that have had their 12V
line shorted to ground. In all cases, it's been due to the tant
capacitors. I've got some new ones in stock, yet in one case merely
having that cap installed (new cap) will cause the short. That's the
general observation.

The question part comes down to this: is this pretty common for tant
capacitors in general? Do they tend to fail short? Since they're used
only to cut down on noise in this application (4116 chips), I can run
the board just fine without them. Although if there were designed to run
with them installed, I'd like to have them installed.

Just curious. I've updated my notes to read "check tant capacitors on
12V short" ... :)

--James Bright
www.QuarterArcade.com
Restored Arcade Games for your Home
Received on Sat Jul 12 15:52:38 2003