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CHAPTER
IV
\
COMPONENT
REPLACEMENT
AND ADJUSTMENT
PROCEDURES
WARNING:
to avoid possible
exposure
to microwave
2.
There is a broken dooc hinge or support.
energy;
3.
The door gasket or seal is damaged.
A.
Before operating the oven;
4.
The door is bent or warped.
1.
Make
sure that
unlatching
the door
slowly
is
5.
There is any defective parts in the interlock,
oven
accompanied
by a click indicating
actuation
of
door or microwave
generating -and transmission
the interlock switches.
assembly.
2.
Check visually the door seal for arcing and damage.
6.
There is any other visible damage to the oven.
B.
Do not operate
the oven until after repair if any of
C.
Do not operate the oven;
the following conditions
exist;
1.
Without the RF gasket.
1.
Door does not close firmly against the front of
2.
If the waveguide
and oven cavity are not intact.
appliance.
3.
If the door is not closed.
OUTER
CASE REMOVAL
To remove the outer case, refer to Figure 12 and proceed
as follows:
1.
Disconnect
the oven power supply.
2.
Remove the screws from the rear and along the side
edge of the case.
3.
Slide the entire case back about 3cm to free it from
retaining clips on the cavity face plate.
4.
Lift the entire case from the unit.
CAUTION: DISCHARGE
THE HIGH VOLTAGE
CAPA-
CITqR
BEFORE
TOUCHING
ANY OVEN
COMPONENTS OR WIRING.
1;
Disconnect
the oven power supply.
POWER TRANSFORMER
REMOVAL
1.
2.
3.
1.
2.
3.
1.
2.
3.
Disconnect
the oven power supply
and remove the
outer case.
Discharge the high voltage capacitor.
Disconnect
the wire leads of transformer
from the
magnetron
and high voltage capacitor.
Disconnect
the oven power supply and remove the
outer case.
Discharge the high voltage capacitor.
Disconnect
the terminal of rectifier from the capacitor.
HIGH
VOLTAGE
CAPACITOR
REMOVAL
Disconnect
the oven power supply
and remove the
outer case.
Discharge the high voltage capacitor.
Disconnect
the wire leads and terminal
of rectifier
from the capacitor.
OVEN
LAMP
REMOVAL
2.
Loosen the screw to open the lamp access cover, and
then remove the oven lamp.
4.
Disconnect
the wire leads from the power transformer.
5.
Remove the two (2) screws holding the transformer
to
the chassis base.
6.
Remove the transformer.
RECTIFIER
REMOVAL
4.
Remove thesingle
(1) screw holding the rectifier to the
mounting
bracket.
CAUTION:
WHEN
REPLACING
THE
RECTIFIER,
THE EARTH SIDE TERMINAL
MUST BE
SECURED FIRMLY WITH AN EARTHING
SCREW.
4.
Remove
the single (1) screw holding
the capacitor
holder to the mounting
bracket.
5.
Remove the capacitor.
24
-,,.z.:
"-
.
*L ____.
_
,
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