As an engineer in electronics, let me just give you a brief synopsis on capacitors. Their sole purpose in life is to store voltage and then release it when the circuit meets certain conditions. That is over-simplified but they can hold a charge for a VERY long time if there is something wrong with the bleeder network. A bleeder network is a shunt network that will drain the capacitor when power is lost to the circuit. It's a safety feature mostly. In flashes and strobes, these capacitors carry a very significant amount of voltage...tens of thousands of volts. Yes, they can kill you in the right circumstances and, at best, you'll be "blind in one eye and deaf in one ear" when it lets loose the juice. You could also burn yourself pretty severely.
If you don't know about electronics, don't mess with it. The life you save may be your own. Save it for those who know what they're doing. And for those who don't want to heed my advice, do me just this one favor then when you decide to open up electronic items....TAKE OFF ALL JEWELRY THAT IS METAL INCLUDING WEDDING RINGS. If you short your wedding band across some voltage, you can rest assured you won't need your wedding band any more because your finger will be gone from the ring up. Current carrying capability of a gold band wedding ring is VERY high. Remember the old joke about using a penny to fix a circuit breaker? Well, it does work but causes things to blow up. Gold is a much better conductor than copper, in fact it is one of the best conductors known to man and can be VERY dangerous when worn while working on electronic items.
Didn't want to preach but I don't want to see anyone getting hurt or killed by putting their fingers where they don't belong. [img]/ubbthreads/images/graemlins/smile.gif[/img] Ok?
Have an excellent weekend!