Service manual

45
R-1855A
RE-INSTALL
RE-INSTALL
Lower Door
Hinge Pin
Upper Door
Hinge Pin
Upper
Oven
Hinge
Lower
Oven
Hinge
Door
Assembly
Door
Stopper
Latch
Heads
Tab
Hood Exhaust Louver
Tab
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.
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. 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
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
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")
2. 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.
12.Now, door frame assembly is free.
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.
17
16
15
14
1
2
3
5
6
7
8
9
10
11
12
13
A
4
Choke Cover
Door stopper
Choke Cover
Door Frame
Putty Knife
Bent
Figure C-3. Door Disassembly
DOOR GLASS FRONT
11.Remove the glass stopper from the door frame.
12.Release the door glass front from the long tab of the door
frame.
13.Now, the door glass front is free.