Sharp R-55TS Service Manual page 34

R-55TS
misadjustment, the following adjustment should be made.
4. Loosen the two (2) screws holding latch hook to the oven
cavity front flange.
5. With door closed, adjust latch hook by moving it back and
forth, and up and down. In and out play of the door
allowed by the upper and lower position of the latch hook
should be less than 0.5mm. The vertical position of the
latch hook should be adjusted so that the door sensing
switch and secondary interlock switch are activated with
the door closed. The horizontal position of the latch hook
should be adjusted so that the plunger of the monitor
switch is pressed with the door closed.
6. Secure the screws with washers firmly.
7. Check the operation of all switches. If each switch has
not activated with the door closed, loosen screw and
adjust the latch hook position.
After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in
the latched position. First check upper position of latch
hook, pushing and pulling upper portion of door toward
the oven face. Then check lower portion of the latch
hook, pushing and pulling lower portion of the door
toward the oven face. Both results (play in the door)
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 door stopper as
shown in Figure C-4 to free engaging parts.
4. Pry the choke cover by inserting a putty knife as shown
Figure C-4.
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.
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 with door frame is free from oven cavity.
Choke Cover
Figure C-4. Door Disassembly
9. Remove the two (2) screws holding the door panel to the
DOOR REPLACEMENT
Door Stopper
Putty Knife
Door Frame
should be less than 0.5mm.
2. The door sensing switch and secondary interlock switch
interrupt the circuit before the door can be open.
3. Monitor switch contacts close when door is opened.
4. Reinstall outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Door
Latch
Heads
Switch Lever
Figure C-3. Latch Switch Adjustments
door frame.
10.Release door panel from eight (8) tabs of door frame.
11.Now, door panel with sealer film is free.
12.Tear sealer film from door panel.
13.Now, door panel is free.
14.Slide latch head upward and remove it from door frame
with releasing latch spring from door frame and latch
head.
15.Now, latch head and latch spring are free.
16.Remove the door glass stopper from door frame.
17.Slide the front door glass rightward, then slide upward.
18.Remove the front door glass from the door frame.
19.Now, front door glass is free.
20.Straight the twelve (12) tabs of the sus cover and remove
the sus cover from the door frame.
REINSTALLATION
1. Reinstall sus cover to the door frame .
2. By bending the twelve (12) tabs of the sus cover, hold the
sus cover to the door frame.
3. Reinstall the front door glass to the door frame.
3-1. Insert the upper edge of the front door glass into the two
(2) tabs of the door frame.
3-2. Slide the front door glass downwards and insert the
lower edge of the front door glass into the four (4) tabs
of the door frame.
3-3. Slide the front door glass leftward and insert the left
edge of the front door glass into the three (3) long tabs
of the door frame.
4. Reinstall the door glass stopper so that the glass stopper
catch the upper and right corner of the front door glass.
5. Reinstall the latch spring to the latch head. Reinstall the
latch spring to the door frame. Reinstall the latch head to
32
Latch Hook
Door Sensing
Switch
Monitor Switch
Secondary
Interlock Switch