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Unread 20-03-2012, 07:53
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
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Re: power distribution board red light stays on

Jimmy,
That is not merely folded over. The transistor (or what remains) of Q5 blew away from the board taking the stripe with it. What is more interesting is that none of the other transistors are in place. During the initial rollout, there was some reason that the 'breaker open' tally circuitry wasn't included. Erik Van Wyk likely remembers why but I don't. There is a lot of debris on the board that may have led to this failure. Please note the solder splash on the lower right of the transistor pad. I am going to bet this is also a contributing factor to the original problem.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Last edited by Al Skierkiewicz : 20-03-2012 at 08:03.