OUTER CASE REMOVAL
To remove the outer case, proceed as follows.
1. Disconnect oven from power supply.
2. Open the oven door and wedge it open.
3. Remove the screws from rear and along the side edge of
case.
4. Slide the entire case back about 1 inch (3cm) to free it
from retaining clips on the cavity face plate.
5. Lift the entire case from the oven.
6. Discharge the H.V. capacitor before carring out any
further work.
7. Do not operate the oven with the outer case re-
moved.
N.B.; Step1 , 2 and 6 from the basis of the 3D checks.
CAUTION: DISCHARGE HIGH VOLTAGE CA4
TOR BEFORE TOUCHING ANY OVEN /
COMPONENTS OR WIRING.
HIGH VOLTAGE COMPONENTS REMOVAL
(High Voltage Capacitor and High Voltage Rectifier Assembly)
To remove the components, proceed as follows. 5. Now, high voltage rectifier assembly and high volt-
I. CARRY OUT 3D CHECKS
2. Remove one (1) screw holding capacitor holder to rear
cabinet.
3. Remove one (1) screw holding earth side terminal of high
voltage rectifier assembly, and remove capacitor holder.
4. Disconnect all the leads and terminals of high voltage
rectifier assembly from high voltage capacitor.
age capacitor should be free.
CAUTION: WHEN REPLACING HIGH VOLTAGE
RECTIFIER ASSEMBLY, ENSURE
THAT THE CATHODE (EARTH) CON-
NECTION IS SECURELY FIXED TO
THE CAPACITOR HOLDER WITH AN
EARTHING SCREW.
.
MAGNETRON REMOVAL
1~ CARRY OUT 3D CHECKS
c,
L.
Disconnect filament lead of transfomer from magnetron.
” 2. Ciissonnect high voltage wire iead from magnetron.
2 Remove ihe cooling fan assembly refer to “Cooling Fan
“iemoval”
L-z
.1 ~CIarefully remove four (411 mounting screws holding the
ri-asnetron and magnetron air guide to waveguide. When
removing the screws hold the magnetron and magnetron
ai: Guide tc prevent it from falling.
care so the magnetron antenna should not hit by any
6. Remove the magnetron from the waveguide with
metal object around the antenna
CAUTION: WHEN REPLACING THE MAGNETRON. j
BE SURE THE R.F. GASKET IS IN!
PLACE AND THE MAGNETRON;
MOUNTING SCREWS ARE TIGHTENED j
SECURELY.
i
POWER TRANSFORMER REREPLACEMENT
REMOVAL
I. CARRY OUT 3D CHECKS
2. Disconnect the wire leads from power transformer
3. Disconnect the leads from magnetron filament.
4. Disconnect the leads of the power transformer from high
voltage capacitor.
5. Disconnect the leads of the power transformer from high
voltage wire A.
6. Remove the two (2) screws and one (1) washer holding
the transformer to bottom plate.
7 .Remove the transformer.
BE-INSTALL
1. Rest the transformer on the base plate with its primary
terminals toward rear cabinet.
2. Insert the two edges of the transformer into two metal
tabs of the base plate.
3. Make sure the transformer is mounted correctly to
the corners underneath those tabs.
4. After re-installing the transformer. secure the trans-
former with two screws to the bate cabint, one is
with outertooth washer and the other is without
outer-tooth washer.
5. Re-connect the wire leads (primary and high volt-
age) and high voltage lead to the transformer and
filament leads of transformer to the magnetron and
capacitor, referring to the “Pictorial Diagram”.
6. Re-install the outer case and check that the oven is
operating properly.
NOTE; LIVE(ORANGE) WIRE MUST BE CON- /
NECTED TO THE CABINET-SIDE OF THE ’
POWER TRANSFORMER.
32
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