Read Panasonic NN-S453WF / NN-S553WF / NN-K593MF / NN-K573MF / NN-K573WF / NN-K543WF Service Manual online
4.3. Part replacement.
When any part or component is to be replaced, always ensure
that the power cord is removed from the wall outlet.
that the power cord is removed from the wall outlet.
4.4. When the 10A fuse is blown
due to the operation of the
short switch:
short switch:
WARNING
When the 10A 250V fuse is blown due to the operation of
the interlock monitor switch, replace all of the components
(primary latch switch, secondary latch switch, short switch
and power relay B (RY1)).
the interlock monitor switch, replace all of the components
(primary latch switch, secondary latch switch, short switch
and power relay B (RY1)).
1. This
is
mandatory.
Refer
to
“adjustments
and
measurements” for the location of these switches.
2. When replacing the fuse, confirm that it has the
appropriate rating for these models.
3. When replacing faulty switches, be sure the mounting
tabs are not bent, broken or deficient in their ability to
hold the switches.
hold the switches.
4.5. Avoid inserting nails, wire etc.
through any holes in the unit
during operation.
during operation.
Never insert a wire, nail or any other metal object through the
lamp holes on the cavity or any holes or gaps, because such
objects may work as an antenna and cause microwave
leakage.
lamp holes on the cavity or any holes or gaps, because such
objects may work as an antenna and cause microwave
leakage.
4.6. Confirm after repair
1. After repair or replacement of parts, make sure that the
screws of the oven, etc. are neither loose nor missing.
Microwaves might leak if screws are not properly tightened.
Microwaves might leak if screws are not properly tightened.
2. Make sure that all electrical connections are tight before
inserting the plug into the wall outlet.
3. Check for microwave energy leakage. (Refer to procedure
for measuring microwave energy leakage).
CAUTION MICROWAVE RADIATION
USE
CAUTION
NOT
TO
BECOME
EXPOSED
TO
RADIATION FROM THE MICROWAVE MAGNETRON OR
OTHER PARTS CONDUCTING MICROWAVE ENERGY
OTHER PARTS CONDUCTING MICROWAVE ENERGY
IMPORTANT NOTICE
The following components have potentials above 2000V
while the appliance is operated.
while the appliance is operated.
•
•
•
• Magnetron
•
•
•
• High voltage transformer (Located on inverter (U))
•
•
•
• High voltage diodes (Located on inverter (U))
•
•
•
• High voltage capacitors (Located on inverter (U))
Pay special attention to these areas.
When the appliance is operated with the door hinges or
magnetron fixed incorrectly, the microwave leakage can
exceed more than 5mW/cm
magnetron fixed incorrectly, the microwave leakage can
exceed more than 5mW/cm
2
. After repair or exchange, it is
very important to check if the magnetron and the door
hinges are correctly installed.
hinges are correctly installed.
4.7. Sharp edges
Caution
Please use caution when unpacking, installing or moving
the unit, as some exposed edges may be sharp to the touch
and cause injury if not handled with care.
the unit, as some exposed edges may be sharp to the touch
and cause injury if not handled with care.
9
NN-S453WF
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