🚀 go-pugleaf

ESD is nasty stuff. Don't forget that as well as the arc when static
jumps it also carries a field; this is probably what is locking up
your macjhine. A typical buildup on carpets is in the 12Kv region and
vinyl tile is around 4Kv. Both direct injection (discharge) and ehnhanced
field produce a double exponential pulse. The peak cuurrent for a
discharge at 12Kv is in the area of 8 amps; the field can produce a
peak current of up to 22 amps. I don't know what's in your keyboard
but I'd bet the pulses are seytting up an undefined condition that you
reset by powering down. when you unplug the keyboard. Eventually the
machine will probably fail if you don't control the static; bipolar
devices will burn or melt due to the current and MOS will melt when
the voltage is high enough to puncture the oxide layer. BTW the duration
of a stsatic pulse is in the area of 50 to 150 nanoseconds.

Bob.