Door Disassembly - Sharp R-1900J Service Manual

R1900J
5. Release upper and lower hinges and the hinge cover from door
assembly.
6. 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.
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.

[18] DOOR DISASSEMBLY

1. CHOKE COVER REMOVAL
1. Remove the door assembly from oven cavity, referring to "DOOR
REMOVAL".
2. Insert a putty knife (thickness of about 0.5mm) at the three (3) posi-
tions in gap between the choke cover and the door panel of the
latch heads side as shown in the fig.C-6, to free engaging parts.
3. Push the each four (4) positions of the upper side and lower side of
chock cover by your finger as shown in the Fig.C-6, to free engag-
ing parts.
4. Pull the chock cover rightward as shown in the fig.C-6, to free
engaging parts.
NOTE: As the choke cover and door panel are engage at 14 places,
do not force any particular part.
5. Remove the choke cover carefully. (If choke cover is broken,
replace with a new one.)
NOTE: When carrying out any repair to the door, do not bend or warp
the slit choke (tabs on the door panel assembly) to prevent
microwave leakage.
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
Door handle
Putty knife
Figure C-6. Choke cover
2. DOOR PANEL REMOVAL
After removing choke cover;
1. Remove the six (6) screws holding the door panel to the door
frame.
2. Release the harness from the hole of the door panel.
3. Remove the door panel from the door frame by releasing the six (6)
tabs of the door frame.
9 – 6
Screws
Hinge
cover
Outer case cabinet
Harness
Screws
Lower hinge
Push
Push
Push
Push
Choke cover
Door panel
Latch heads
Push
Push
Push
Push