Door Replacement - Sharp R-CD1200M Service Manual

2. After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in the
latched position.
2. The door sensing switch and secondary interlock switches (1), (2)
interrupt the circuit before the door can be opened.
3. Monitor switches (1), (2) contacts close when door is opened.
4. Re-install outer case and check for microwave leakage around
door with an approved microwave survey meter. (Refer to Micro-
wave Measurement Procedure.)

[17] DOOR REPLACEMENT

1. REMOVAL
1. Disconnect the power supply cord and then remove the outer case,
referring to "OUTER CASE AND REAR COVER REMOVAL".
2. Open the oven door and block it open.
3. Discharge the two high voltage capacitors.
4. Disconnect the harness of the door assembly from the control unit.
5. Remove the two (2) screws holding each of the upper and lower
hinges to the oven cavity.
6. Remove door assembly with upper and lower hinges by pulling it
forward.
7. Release upper and lower hinges and the hinge cover from door
assembly.
8. Now, door assembly is free.
NOTE: When individual parts are replaced, refer to "Door Disassem-
bly".
2. REINSTALLATION
1. Install the hinge cover to the upper hinge. At this time, the harness
of the door assembly should be passed through under the hinge
cover.
2. Insert the upper and lower hinges into door hinge pins.
3. Insert the upper and lower hinges with door assembly into rectan-
gular holes of oven cavity front plate.
4. Make sure that the door is parallel with oven face lines (left and
upper side line) and door latch heads pass through the latch holes
correctly.
5. Fasten upper and lower hinges firmly to oven cavity with two (2)
screws on each hinge.
NOTE: After any service to the door;
1) Make sure that door sensing switch, secondary interlock
switches (1), (2) and monitor switches (1), (2) are operating
properly. (Refer to chapter "Test Procedures".).
2) An approved microwave survey meter should be used to
assure compliance with proper microwave radiation emis-
sion limitation standards.
3. DOOR ADJUSTMENT
Door adjustment is performed with the door properly installed and
closed and while the oven hinges are loose.
1. Loosen upper and lower hinges with phillips head screw driver.
Latch
lever
Latch
head
Handle
lever
Latch
head
Figure C-4. Latch Switch Adjustments
2. Adjust the door by moving it vertically so that the top of the door is
parallel to the bottom of the control panel assembly.
3. Tighten the upper and lower oven hinge screws.
3.1. After adjustment, make sure of the following:
1. Door latch heads smoothly catch the latch hook through the latch
holes, and the latch head goes through the center of the latch hole.
2. Deviation of the door alignment from horizontal line of cavity face
plate is to be less than 1.0mm.
3. The door is positioned with its face depressed toward the cavity
face plate.
4. Re-install outer case and check for microwave leakage around
door with an approved microwave survey meter. (Refer to Micro-
wave Measurement Procedure.)
NOTE: The door on a microwave oven is designed to act as an elec-
tronic 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. If such were the case, your oven could not be
equipped with a vent, the very purpose of which is to exhaust
the vapor-laden air from the oven cavity.
Upper hinge
Latch heads
Figure C-5. Door Replacement
10 – 6
RCD1200M
Switch lever A
Latch hook
Monitor switch (2)
Monitor switch (1)
Switch lever B
Secondary
interlock switch (2)
Secondary
interlock switch (1)
Door sensing switch
Switch lever C
Screws
Hinge
cover
Outer case cabinet
Harness
Screws
Lower hinge