Sharp R-1211 Service Manual page 24

R-1210
R-1211
6. Remove the two (2) screws holding the bottom sash to
the oven cavity front face plate.
7. Remove the bottom sash with 11-pin wire harness from
the oven cavity front face plate. And remove the connecter
of the 11-pin wire harness from the long hole of the oven
cavity front face plate.
8. Remove the 11-pin wire harness from the bottom sash.
9. Insert a putty knife (thickness of about 0.5mm) into the
gap A between the upper door stopper and the choke
cover as shown in Figure C-4 to free engaging parts.
10.Lift up the upper door stopper.
11.Remove the lower door stopper from the door assembly
in a similar way which the upper door stopper is removed.
12.Now, the upper and lower door stoppers are free from
the door assembly.
13.Lift up the door assembly to release the upper and lower
door hinge pins from the upper and lower oven hinges.
14.Now, the door assembly is free.
Note: When the individual parts are replaced, refer to
"Door Disassembly".
DOOR ASSEMBLY REINSTALL
1. On reinstalling door, insert the lower oven hinge to lower
door hinge pin.
2. Insert the upper oven hinge to the upper door hinge pin.
3. Shut the door (close the contacts of interlock switches).
4. Make sure upper and lower oven hinges are inserted into
the upper an lower door hinge pins.
5. Make sure the door is parallel with oven face lines (left
and upper side lines) and door latch heads pass through
latch holes correctly.
6. Reinstall the upper and lower door stoppers to the door
assembly.
7. Reinstall the 11-pin wire harness into the bottom sash.
The 11-pin wire harness should be held by three (3)
tabs on the bottom sash. And the marking portion on the
11-pin wire harness should be held by left tab as shown
in Figure C-3.
8. Insert the connector of the 11-pin wire harness into the
long hole of the oven cavity front face plate. And reinstall
the bottom sash to the oven cavity front face plate with
the two (2) screws.
9. Reconnect the 11-pin wire harness to the power unit.
10. Insert the snap band of the 11-pin wire harness into the
hole on the base plate R.
Note: After any service to the door;
(A) Make sure that door sensing switch and primary
interlock switch are operating properly. (Refer to
chapter "Test Procedures".)
(B) An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards.
1. Disconnect the power supply cord.
2. Open the door and block it open.
3. To discharge the high voltage capacitor, wait for 60
seconds.
After any servicing, make sure of the following :
1. Door latch heads smoothly catch latch hook through
latch holes and that latch head goes through center of
latch hole.
2. Deviation of door alignment from horizontal line of cavity
face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity
face plate.
4. Reinstall outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Note: The door on a microwave oven is designed to
act as an electronic seal preventing the leakage
of microwave energy from oven cavity during
cook cycle. This function does not require that
door be air-tight, moisture (condensation)-tight
or light-tight. Therefore, occasional appearance
of moisture, light or sensing of gentle warm air
movement around oven door is not abnormal
and do not of themselves indicate a leakage of
microwave energy from oven cavity.
Door assembly
Figure C-2. Door Replacement and adjustment
Door
assembly
Figure C-3. 11-pin wire harness and bottom sash
DOOR DISASSEMBLY
4. Remove door assembly, referring to "DOOR
REPLACEMENT".
Replacement of door components are as follows:
5. Place door assembly on a soft cloth with latches facing up.
22
Upper door
hinge pin
Upper oven
hinge
Lower
RE-INSTALL
oven
hinge
Upper door
stopper
Latch
heads
Lower door
stopper
Lower door
Bottom
hinge pin
sash
RE-INSTALL
Screw
Oven cavity
front face plate
Marking
Tabs
Bottom sash
11-pin wire
harness
Screw
Connector
11-pin wire
harness