Cautions To Be Observed When 'Troubleshooting - Panasonic NE-7910 Service Manual

(A) Do not operate or allow the oven to be Operated with the door open.
(1) Interlock operation
(2) Proper door closing
(3) Seal and sealing surfaces: (arcing, wear, and other damage)
(4) - Damage to or loosening of hinges and latches
(5) Evidence of dropping or abuse
oven prior to release to the owner.
CAUTIONS TO BE OBSERVED WHEN 'TROUBLESHOOTING
Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. Though it is free
from danger in ordinary use, extreme care should be taken during repair.
SERVICEMEN SHOULD REMOVE THEIR WATCHES WHENEVER WORKING CLOSE TO OR REPLACING
THE MAGNETRON.
1. Check the grounding
Do not operate on a 2-wire extension cord. The microwave oven is designed to be used when grounded, It is impera-
tive, therefore, to make sure it is grounded properly before beginning repair work.
2. Warning about the electric charge in the high
voltage capacitor
For about 30 seconds after the oven stops, an electric
charge remains in the high voltage capacitor. When
replacing or checking parts, short between capacitor
terminals by an insulated screw driver to discharge. See
figure 12.
CAPACITOR __ =
q
Fig. 12
—15—
(Fig.
12)