Sharp R-320CD Service Manual page 33

Removal
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads from magnetron.
5. Remove the four (4) screws holding chassis support to
magnetron, oven cavity back plate, oven cavity front
flange and fan duct.
6. Remove the chassis support from oven.
7. Carefully remove the four (4) screws holding magnetron
to waveguide flange.
8. Lift up magnetron with care so that magnetron antenna
is not hit by any metal object around antenna.
9. Now, the magnetron is free.
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
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. Lift up the oven lamp socket.
8. Now, the oven lamp socket is free.
POSITIVE LOCK
1. Disconnect the power supply cord, and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Push the lever of positive lock
5. Pull down on the positive lock
CAUTION: WHEN CONNECTING THE POSITIVE LOCK
CONNECTORS TO THE TERMINALS, CON-
NECT THE POSITIVE LOCK
LEVER FACES YOU
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads from the door sensing switch and
the oven cavity front flange.
5. Disconnect the wire leads from panel components.
6. Make one (1) tab of the oven cavity front plate straight
holding the control panel assembly to the oven flange.
MAGNETRON REMOVAL
OVEN LAMP AND LAMP SOCKET REMOVAL
®
CONNECTOR (NO-CASE TYPE) REMOVAL
® connector.
®
connector.
®
®
SO THAT THE
CONTROL PANEL ASSEMBLY REMOVAL
Re-install
1. Re-install the magnetron to waveguide flange with the
four (4) screws.
2. Insert the two (2) tabs of the chassis support to the oven
cavity front plate and the back plate.
3. Hold the chassis support to the oven cavity back plate,
oven cavity front flange, magnetron and the fan duct with
the four (4) screws.
4. Re-install the chassis support to magnetron with the one
(1) screw.
5. Reconnect the wire leads to the magnetron. Refer to
"PICTORIAL DIAGRAM" on page 35.
6. 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
Terminal
Wire lead
Figure C-1. Oven lamp socket
Figure C-2. Positive lock
7. Slide the control panel assembly upward and remove it.
8. Now, individual components can be removed.
NOTE: 1. Before attaching a new key unit, wipe off remaining
adhesive on the control panel frame surfaces
completely with a soft cloth soaked in alcohol.
2. When attaching the key unit to the control panel
frame, adjust the upper edge and right edge of
the key unit to the correct position of control panel
frame.
31
Oven lamp
socket
Terminal hole
Flat type small
screw driver
Terminal
Positive lock®
connector
4
Push
Lever
5
Pull down
® connector
R-320CD/CK/CW
R-330CK/CW