Magnetron Removal; High Voltage Rectifi Er And High Voltage - Frigidaire CFMV152KW Servicing Manual

Section 4 Component Teardown

Magnetron Removal

1. Disconnect power supply cord, remove oven from
wall and remove outer case (Refer to procedure
of "Removal of Oven from Wall" and "Outer Case
Removal".)
2. Open the door and block it open.
3. Discharge high voltage capacitor.
NOTE
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of
the high-voltage rectifier) against the chassis with the
use of an insulated screwdriver.
4. Disconnect the high voltage wire lead of the high
voltage rectifier assembly from the magnetron.
5. Disconnect the filament lead of the transformer from
the magnetron.
6. Disconnect the wire leads of magnetron TCO.
7. Carefully remove three (3) mounting screws holding
the magnetron to waveguide. When removing the
screws hold the magnetron to prevent it from falling.
8. Remove the magnetron from the unit with care so
the magnetron tube should not be hit by any metal
object around the tube.
CAUTION
When replacing the magnetron, be sure the
R.F. Gasket is in place and mounting screws are
tightened securely.
4-4
High Voltage Rectifi er And High Voltage
Capacitor Removal
1. Disconnect power supply cord, remove oven from
wall and remove outer case (Refer to procedure
of "Removal of Oven from Wall" and "Outer Case
Removal".)
2. Open the door and block it open.
3. Discharge high voltage capacitor.
NOTE
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of the
high-voltage capacitor (that is the connecting lead of
the high-voltage rectifier) against the chassis with the
use of an insulated screwdriver.
4. Disconnect the high voltage wire leads with high
voltage rectifier from the magnetron.
5. Disconnect filament lead of the transformer from
high voltage capacitor.
6. Disconnect high voltage wire from capacitor.
7. Remove one (1) screw holding capacitor holder and
high voltage rectifier to the fan duct.
8. Disconnect the high voltage rectifier assembly from
the high voltage capacitor and remove one (1) screw
holding the voltage rectifier assembly to the
capacitor holder.
9. Now, the high voltage rectifier assembly is free.
10. Remove capacitor from the holder.
11. Now, the high voltage capacitor is free.
CAUTION
When replacing the high voltage rectifier
assembly, the ground side terminal must be
secured firmly with a grounding screw.