Magnetron Removal - Frigidaire CGMV173KB Servicing

Section 4 Component Teardown
OVEN LAMP SOCKET
15. Screw the oven lamp out from the lamp socket.
16. Remove the lamp socket from the lamp angle.
17. Pull the wire leads from the oven lamp socket by
pushing the terminal hole of the oven lamp socket
with a small flat type screw driver.
18. Now, the oven lamp socket is free.
Oven Lamp Socket
Terminal
Wire Lead
Flat Type Screwdriver
Figure 4-2.
AH SENSOR
19. Release the harness of the AH sensor assembly from
three (3) wire holders of the hood duct.
20. Remove two (2) screws holding the AH sensor
assembly to the hood duct.
21. Now, the AH sensor assembly is free.
4-4
Terminal Hole

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 wire leads from the fan motor and
the chassis support, and release them from the holes
of hood duct.
5. Remove the one (1) screw holding the hood duct to
the oven cavity front plate, and lift up the fan motor
side of the hood duct.
6. Remove the one (1) screw holding the capacitor
holder to the hood intake duct.
7. Disconnect the high voltage wire leads of the high
voltage rectifier assembly from the magnetron.
8. Disconnect the filament lead of the transformer from
the magnetron.
9. Remove the power transformer from the right
base plate, referring to "POWER TRANSFORMER
REMOVAL".
10. Carefully remove four (4) mounting screws holding
the magnetron to waveguide. When removing the
screws hold the magnetron to prevent it from falling.
11. Remove the magnetron from the unit with care so
the magnetron tube should not be hit by any metal
object around the tube.
12. Remove the one (1) screw holding the magnetron air
guide to the magnetron.
13. Remove the magnetron air guide.
CAUTION
When replacing the magnetron, be sure the
R.F. Gasket is in place and mounting screws are
tightened securely.