Cautions To Be Observed When Troubleshooting - Panasonic NN-K153WF Service Manual

When those Auto Control feature is selected and the Start Pad is tapped:
1. The digital programmer circuit determines the power level and
cooking time to complete cooking and indicates the operating
state in the display window. / Table shows the corresponding
cooking times for respective serving or weight by categories.
2. When cooking time in the display window has elapsed, the oven
turns off automatically by a control signal from the digital
programmer circuit.
Chaos Defrost (Meat Items)
WEIGHT SELECTED
200g
Auto Cook
CATEGORY
Fresh
Vegetables
7. 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.
7.1. Check the grounding
Do not operate on a 2-wire extension cord. The microwave oven is designed to be used when
grounded. It is imperative, therefore, to make sure it is grounded properly before beginning
repair work.
7.2. Warning about the electric charge in the high voltage capacitor
For about 30 seconds after the oven is turned off, an electric charge remains in the high voltage
capacitor.When replacing or checking parts, remove the power plug from the outlet and short
the terminal of the high voltage capacitor (terminal of lead wire from diode) to chassis ground
with an insulated handle screwdriver to discharge.
COOKING TIME
3 min.30 sec.
WEIGHT COOKING TIME
SELECTED
100g 2 min.30 sec.
CAUTION
11