Panasonic NN­-MX21WF Service Manual page 34

10/16/2016
WARNING! DISCHARGE THE HIGH VOLATGE CAPACITORS
For about 30 seconds after the oven is turned off, an electric charge remains in the high voltage capacitors in the
inverter power supply circuit board.
When replacing or checking parts, remove the power plug from the outlet and short the inverter output terminal
of the magnetron filament terminals to the chassis ground with an insulated handle screwdriver to discharge.
Please be sure to touch thechassis ground side first and then short to the output terminals.
WARNING
There is high voltage present with high current capabilities in the circuits of the primary and secondary
windings, choke coil and heat sink of the inverter. It is extremely dangerous to work on or near these circuits
with the oven energized. DONOT measure the voltage in the high voltage circuit including the filament voltage
of the magnetron.
WARNING
Never touch any circuit wiring with your hand or with an insulated tool during operation.
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Discharging the high voltage capacitors
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