Sharp R-90GCH Service Manual page 36

R-90GCH
Left door
cam pin
Door cam left
Oven hinge
left
Door
assembly
Left door
hinge pin
Right door
hinge pin
Figure C-4(b). Door Replacement
1. CARRY OUT 3D CHECKS.
2. Remove the door assembly, referring to "Door
Replacement".
3. Place the door assembly on a soft cloth with latch
heads facing up.
NOTE: As the engaging parts of the choke cover and
the door panel assembly are provided at 16
places, do not force any particular part.
4. Replacement of the door components are as follows:
CHOKE COVER
5. Insert a putty knife (thickness of about 0.5 mm) into the
gap between the choke cover and the door panel
assembly as shown in Figure C-5.
6. Lift up the choke cover.
7. Now, the choke cover is free from the door panel
assembly.
NOTE: When carrying out any repair to the door, do
not bend or wrap the slit choke (tabs on the
door panel assembly) to prevent microwave
leakage.
DOOR HANDLE ASSEMBLY
8. Remove the two (2) screws holding the door handle
assembly to the door panel assembly through the door
frame.
9. Now, the door handle is free.
DOOR PANEL ASSEMBLY, LATCH HEAD R AND
LATCH HEAD L
10.Remove the fourteen (14) screws holding the door
panel assembly to the door frame.
11.Remove the door panel assembly from the door frame.
12.Remove the one (1) screw holding the latch head R to
the door panel assembly.
13.Remove the latch spring R from the latch head R and
the handle lever.
14.Now, the latch head R is free.
15.Remove the one (1) screw holding the latch head L to
the door panel assembly.
CONTROL PANEL ASSEMBLY AND CPU UNIT REMOVAL
Control panel assembly
1. CARRY OUT 3D CHECKS.
2. Disconnect the 20-pin harness from the connectors
CN-G and CN-H on the power unit.
3. Remove the four (4) screws holding the control panel
Right door
cam pin
Door cam right
Oven hinge
right
DOOR DISASSEMBLY
16.Remove the latch spring L from the latch head L and the
handle lever.
17.Now, the latch head L is free.
18.Release the two (2) handle springs from the two (2)
handle levers.
19.Pull out the two (2) handle pins from the two (2) handle
levers.
20.Remove the two (2) handle levers from the door panel.
21.Now, the door panel is free.
MIDDLE DOOR GLASS
22.Remove the two (2) screws holding the glass mounting
angle B to the door frame.
23.Remove the middle door glass from the door frame.
24.Now, the middle door glass is free.
FRONT DOOR GLASS
25.Remove each two (2) screws holding the two glass
mounting angles A to the door frame.
26.Remove the two (2) glass mounting angles A from the
door frame.
27.To release the two (2) tabs holding the lower end of the
front door glass, slide the front door glass upward.
28.Release the three (3) tabs holding the upper end of the
front door glass and remove the front door glass from
the door frame.
29.Now, the front door glass is free.
Choke
Cover
assembly to the oven cavity front plate.
4. Slide the control panel assembly leftward to release
the eight (8) tabs of the control panel assembly from the
oven cavity front plate.
5. Now, the control panel assembly is free.
34
Door Panel
Assembly
Putty Knife
Figure C-5. Door Disassembly
Door
Frame