On 8/21/2013 8:47 PM, WW wrote:

We all do that at some time in life. Our toaster quit working. took in
apart. Checked all the circuit board parts. Checked OK. Cleaned the
switch contacts even though they looked OK. Reassembled toaster. Still
dead. Then noticed the GFI tripped. Reset ,,Toaster OK. WW

Once, when doing FOH sound at a large outdoor festival, I watched a well
known band leader and inventor of a piano pickup (a Rice EE graduate, no
less) **** off an audience to the point of riot; first by being almost
two hours late to start his set; then by totally disassembling his
electric piano onstage because it wouldn't turn on, Only to discover,
after another 45 minutes of wasted time while the audience became even
more under the influence/unruly, he had neglected to plug it in ... oops!

#1 rule of troubleshooting electronics: Check the voltage, first.

--
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KarlCaillouet@ (the obvious)