Door Disassembly - Sharp R-1880LS Service Manual

Over the range microwave oven
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R-1880LS/LST
6. Re-install the door stopper to the door assembly.
7. Re-install the sash left to the oven cavity front face plate.
8. Re-install the hood exhaust louver to the oven cavity front
face plate.
Note: After any service to the door;
(A) Make sure that door sensing switch and secondary
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.
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.
. 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. Re-install 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
1. Disconnect the power supply cord and remove the oven from
wall and remove outer case. (Refer to procedure of "Removal
of Oven from Wall" and "Outer case Removal")
. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the hood exhaust louver from the oven cavity by
pushing the right and left tabs of the hood exhaust louver.
(Refer to the procedure of "HOOD EXHAUST LOUVER
REMOVAL".)
5. Remove door assembly, refer to "Door Replacement".
Replacement of door components are as follows:
6. Place door assembly on a soft cloth with latches facing up.
Note:
As the engaging part of choke cover and door panel are
provided at 17 places, do not force any particular part.
CHOKE COVER
7. Insert an putty knife (thickness of about 0.5mm) into the gap
between the choke cover and door panel and between the
choke cover and the door frame as shown Figure C-3 to free
engaging parts.
8. Try the principles of the lever and lift up the choke cover by
inserting a putty knife in order shown in Figure C-3.
9. Now choke cover is free from door panel and door frame.
DOOR FRAME
10. Remove six (6) screws holding the door panel to the door
frame assembly.
11. Release the door frame assembly from the door panel.
1. Now, door frame assembly is free.
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.
Figure C-2. Door Replacement and adjustment

DOOR DISASSEMBLY

LATCH SPRING, LATCH HEAD AND DOOR PANEL
13. Lease the latch spring from the tab of the latch head and tab
of the door panel.
14. Release the latch head from the door panel.
15. Now, the latch spring, latch head and door panel are free.
Bent
1
17
DOOR GLASS FRONT
16. Remove the glass stopper from the door frame.
17. Release the door glass front from the long tab of the door
frame.
18. Now, the door glass front is free.
48
Upper Door
Hinge Pin Upper
Oven
Hinge
RE-INSTALL
Door
Lower
Assembly
Oven
Hinge
Door
Stopper
Lower Door
Latch
Hinge Pin
Heads
RE-INSTALL
A
Choke Cover
6
5
4
3
2
11
13
12
16
15
14
Door Frame
Figure C-3. Door Disassembly
Hood exhaust
louver
Door stopper
7
8
9
10
Putty Knife
Choke Cover

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