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PRECAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING
WARNING
DISCHARGING HIGH
VOLTAGE 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. Use a screw-
driver with an insulated handle, and short the
inverter output of the magnetron filament
terminals to discharge it. Be sure to touch the
chassis ground side first, and then touch the
output terminals.
The microwave oven is a high voltage, high
current appliance. It is free from danger during
ordinary use, but extreme care should be taken
during repair.
CAUTION
Service technicians should remove their
watches whenever working close to or re-
placing the magnetron.
WARNING
There is high voltage present, with high
current capabilities in the circuits of the pri-
mary and secondary windings, the choke
coil, and the heat sink of the inverter. It is
extremely dangerous to work on or near
these circuits with the microwave oven ener-
gized. DO NOT 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 opera-
tion.
WARNING
Before touching any oven components or
wiring, always unplug the oven from its power
source, and discharge the line and high
voltage capacitors.
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