Service manual

27
R-630DK
R-630DW
R-630DS
Oven lamp
socket
Terminal
Wire lead
Terminal hole
Flat type small
screw driver
MAGNETRON REMOVAL
Removal
1. Disconnect the power supply cord and then remove
outer case.
2. Remove the oven cavity assembly from the base plate.
Refer to "OVEN CAVITY ASSEMBLY REMOVAL".
3. Discharge the high voltage capacitor.
4. Now, the wire leads should be disconnected from the
magnetron and thermal cut-out (MG).
5. Carefully remove the four (4) screws holding magnetron
to waveguide flange.
6. Remove magnetron with care so that magnetron antenna
is not hit by any metal object around antenna.
7. Remove the two (2) screws holding the magnetron
thermal cut-out angle to the magnetron.
8. Remove the magnetron thermal cut-out angle with thermal
cut-out (MG) from magnetron.
9. Now, the magnetron is free.
Reinstallation
1. Re-install the magnetron thermal cut-out angle with
thermal cut-out (MG) to magnetron with the two (2)
screws.
2. Re-install the magnetron to waveguide flange with the
four (4) screws.
3. Re-install the oven cavity assembly to the base plate.
Refer to "OVEN CAVITY ASSEMBLY REMOVAL".
4. Reconnect the wire leads to the magnetron and thermal
cut-out (MG). Refer to "PICTORIAL DIAGRAM" on page
32.
5. Re-install outer case and check that the oven is operating
properly.
CAUTION: WHEN REPLACING MAGNETRON, BE SURE
THE R.F. GASKET IS IN PLACE AND MOUNT-
ING SCREWS ARE TIGHTENED SECURELY.
OVEN LAMP AND LAMP SOCKET REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. To discharge the high voltage capacitor, wait for 60
seconds.
4. Remove the oven lamp from the oven lamp socket.
5. Pull the wire leads from the oven lamp socket by pushing
the terminal hole of the oven lamp socket with the small
flat type screw driver.
6. Bend the tab of the partition angle holding the lamp
socket.
7. Remove the oven lamp socket from the lamp angle.
8. Now, the oven lamp socket is free.
3. Discharge the high voltage capacitor.
4. Disconnect the high voltage wire B from the power
transformer.
5. Disconnect the high voltage wire of the high voltage
rectifier assembly from the magnetron.
6. Disconnect the filament lead (short one) of the power
transformer from the high voltage capacitor.
7. Remove one (1) screw holding capacitor holder to base
plate.
8. Remove one (1) screw holding high voltage rectifier
assembly to capacitor holder.
9. Disconnect rectifier terminal from the capacitor.
High voltage rectifier assembly is now free.
10.Disconnect the high voltage wire B from the high voltage
capacitor.
11.Remove the capacitor holder. The capacitor is now free.
CAUTION: WHEN REPLACING HIGH VOLTAGE RECTI-
FIER AND HIGH VOLTAGE CAPACITOR,
GROUND SIDE TERMINAL OF THE HIGH
VOLTAGE RECTIFIER MUST BE SECURED
FIRMLY WITH A GROUNDING SCREW.
Figure C-2. Oven lamp socket
REMOVAL
1. Disconnect the power supply cord and then remove the
outer case.
2. Remove the oven cavity assembly from the base plate.
Refer to "OVEN CAVITY ASSEMBLY REMOVAL".
3. Discharge the high voltage capacitor.
4. Disconnect the wire leads from the fan motor.
5. Remove one (1) screw holding the separate angle B to
the base plate. And remove it from base plate.
6. Remove two (2) screws holding the magnetron air guide
B to the base plate and fan case assembly. And remove
it from the base plate.
FAN MOTOR REMOVAL
7. Remove two (2) screws holding the magnetron air guide
A to the base plate and fan case assembly. And remove
it from the base plate.
8. Remove four (4) screws holding the fan case assembly
to the base plate.
9. By sliding the fan case assembly rightward, remove the
fan case assembly with the fan motor from the base plate.
10.By using a hexagonal key wrench (2 mm), loosen the one
(1) hexagonal screw holding the cross flow fan to the fan
motor shaft.
11.Remove the two (2) screws holding the fan motor
mounting angle to the fan case assembly.