Sharp R-27STM Service Manual page 18

R-27STM
REMOVAL
1. Disconnect the power supply cord.
2. Open the door slightly.
Insert a putty knife (thickness of about 0.5mm) into the gap
3.
between the choke cover and corner portion of door panel
as shown in Figure C -6 to free engaging parts.
Pry the choke cover by inserting a putty knife as shown Fig -
4.
ure C -6.
Release choke cover from door panel.
5.
Now choke cover is free.
6.
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 up -
per and lower oven hinges by lifting up.
8. Now, door panel with door frame is free from oven cavity.
9. Release door panel from ten (10) tabs of door frame and re -
move the door frame by sliding the door panel downward.
Now, door panel with sealer film is free.
10.
Tear sealer film from door panel.
11.
12. Now, door panel is free.
13. Slide latch head upward and remove it from door frame with
releasing latch spring from door frame and latch head.
14. Now, latch head and latch spring are free.
15. Remove the two (2) screws holding the door handle
and the glass stopper to the door frame.
16. Remove the door handle and the glass stopper from
the door frame.
17. Slide the door glass towards the door glass stopper
position and then down towards the lower edge of the door
frame.
18. Lift the upper edge of the door glass, which will now be
free from the upper clips and remove from lower clips.
19. Now, door glass is free.
REINSTALLATION
1. Insert door glass into the door frame by reversing the above
door glass removing procedure.
2. Re -install the glass stopper and the door handle to the door
frame with the two (2) screws.
3. Re -install latch spring to the head. Re -install latch spring to
the door frame. Re -install latch head to the door frame.
Re-install door panel to door frame by fitting ten (10) tabs of
4.
door frame to ten (10) holes of door panel.
Put sealer film on door panel. Refer to "Sealer Film" about
5.
how to handle new one.
R27STM.indd 18
DOOR REPLACEMENT
Door Frame
Putty Knife
18
6. Catch two (2) pins of door panel on two (2) hole of upper
and lower oven hinges
Re-install choke cover to door panel by pushing.
7.
NOTE: After any service to the door;
Make sure that 1st. latch switch, 2nd. interlock relay
control switch and monitor switch are operating
properly. (Refer to chapter "Test Procedures".).
An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards.
After any service, make sure of the following:
Door latch heads smoothly catch latch hook through latch
1.
holes and that latch head goes through centre of latch hole.
Deviation of door alignment from horizontal line of cavity
2.
face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity face
plate.
Check for microwave leakage around door with an approved
4.
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 mi-
crowave energy from oven cavity during cook cycle.
This function does not require that door be air-tight,
moisture (condensation) tight or light-tight. There-
fore, 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.
Pin
Upper Oven
Upper
Hinge
Oven Hinge
Slit choke of
door panel
Lower Oven
Hinge
Pin
Figure C-7. Door Replacement
SEALER FILM
Put the adhesive tape on the backing film of the sealer film as
shown in Fig. C -8
Tear the backing film by pulling the adhesive tape.
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
11/3/08 2:04:29 PM