Panasonic NN-S554WF Service Manual page 7

2. CAUTIONS TO BE OBSERVED WHEN
TROUBLESHOOTING
Unlike many other appliances, the microwave oven is a high voltage, high current device. It is
free from danger in ordinary use, though extreme care should be taken during repair.
Caution
Servicemen should remove their watches whenever working close
to or replacing the magnetron.
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