Disassembly And Reassembly; Replacement Of High Voltage Transformer; Replacement Of Magnetron - Frigidaire PLMV178HC Service Manual

5. Disassembly and Reassembly

MAGNETRON, MOTOR ASSEMBLY, VENT BLOWER AND HIGH VOLTAGE TRANSFORMER
Oven must be removed from wall.
REMOVING OVEN FROM WALL (2 PEOPLE REQUIRED)
Oven is hooked on metal tabs at bottom of wall mounting plate and to cabinet by (3) top cabinet bolts.

5-1 Replacement of High Voltage Transformer .

Disconnect oven power.
Remove Grille & Control Box Assembly.
1. Discharge the high vol tage capacitor.
2. Disconnect all the leads.
3. Remove (4) Screws from the H.V.Trans.
4. Take out the H.V.Trans.

5-2 Replacement of Magnetron

Remove the magnetron including the shield case,
permanent magnet, choke coils and capacitors (all of
which are contained in one assembly).
1. Disconnect all lead wires from the magnetron.
2. Remove nuts (4) securing the magnetron to the
wave guide.
3. Take out the magnetron very carefully.
NOTE1: When removing the magnetron, make sure
that it antenna does not hit any adjacentparts,
or it may be damaged.
NOTE2: When replacing the magnetron, be sure to
remount the magnetron gasket in the correct
position and make sure the gasket is in good
condition.
CAUTION !
During replacement, be certain R.F. anode gasket
is in place around anode stub.
PERFORM MICROWAVE LEAKAGE TEST
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