Door Replacement - Sharp R-222T Service Manual

R-222T(W)

[14] DOOR REPLACEMENT

1. REMOVAL
1. Disconnect the power supply cord.
2. Open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the gap
between the choke cover and corner portion of door panel as
shown in Figure C-6 to free engaging parts.
4. Pry the choke cover by inserting a putty knife in order shown in fig-
ure C-6.
5. Release choke cover from door panel.
6. Now choke cover is free.
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.
Choke Cover
Figure C-6. Door Disassembly
7. Release two (2) pins of door panel from two (2) holes of upper and
lower oven hinges by lifting up.
8. Now, door panel is free from oven cavity.
9. Release door panel from ten (10) tabs of door frame and remove
door frame by sliding the door panel downward.
10.Now, door panel with sealer film is free.
11.Tear sealer film from door panel.
12.Now, door panel is free.
13.Slide latch head upward and remove it from door frame with releas-
ing latch spring from door frame and latch head.
14.Now, latch head and latch spring are free.
15.Remove door screen from door frame.
16.Now, door screen is free.
2. REINSTALL
1. Re-install door screen to door frame.
2. Re-install latch spring to the head. Re-install latch spring to the
door frame. Re-install latch head to the door frame.
3. Re-install door panel to door frame by fitting ten (10) tabs of door
frame to ten (10) holes of door panel.
4. Put sealer film on door panel. Refer to "Sealer Film" and figure C-8,
on how to handle the new film.
5. Catch two (2) pins of door panel on two (2) hole of upper and lower
oven hinges.
6. Re-install choke cover to door panel by pushing.
NOTE: After any service to the door;
1) Make sure that 1st. latch switch, 2nd. interlock relay control switch
and monitor switch are operating properly. (Refer to chapter "Test
Procedures".).
Door Frame
Putty Knife
10 – 6
2) An approved microwave survey meter should be used to assure
compliance with proper microwave radiation emission limitation
standards.
3. After any service, 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. Check for microwave leakage around door with an approved micro-
wave 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 (conden-
sation)-tight or light-tight. Therefore, occasional appear-
ance 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.
Pin
Upper Oven
Upper
Hinge
Oven Hinge
Slit choke of
door panel
Lower Oven
Hinge
Pin
Figure C-7. Door Replacement
4. SEALER FILM
1. Put the adhesive tape on the backing film of the sealer film as
shown in Fig. C-8
2. Tear the backing film by pulling the adhesive tape.
3. Put the pasted side of the sealer film on the door panel
Sealer film
Figure C-8. Sealer film
Lower
Oven Hinge
Choke Cover
Backing film
Adhesive tape