Sharp Carousel R-990C Panduan Servis - Halaman 32

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Halaman Cetak

R-990C(S)

After the adjustment, make sure of the following:

1. The in and out play of the door remains less than 0.5

mm at latched position.

2. The stop switch and lower latch switch interrupt the

circuit before the door can be opened.

3. The upper latch switch contacts open when the door is

opened.

4. The monitor switch contacts close when the door is

opened.

5. Re-install the outer case and check for microwave

leakage around the door with an approved microwave

survey meter. (Refer to Microwave Measurement

Procedure.)

DOOR REPLACEMENT

1. Disconnect oven from power supply and remove outer

case.

2. Discharge high voltage capacitor.

3. Remove turntable tray and roller stay from oven cavity.

4. Remove three (3) screws holding lower oven hinge.

5. Remove lower oven hinge from oven cavity bottom flange.

6. Remove door assembly from upper oven hinge on the oven.

7. Door assembly is now free.

Note: When individual parts are replaced, refer to "Door

Disassembly".

8. On re-installing door, insert the upper oven hinge into

the door hinge pin.

Then while holding door in place.

9. Make sure door is parallel with oven face lines (left and

upper side lines) and the door latch heads pass through

the latch holes correctly.

10.Insert the lower oven hinge into oven cavity bottom flange

and then engage the door hinge pin. Then secure the

lower oven hinge firmly with three (3) mounting screws.

Note: After any service to the door;

(A)Make sure that the upper and lower latch switches, the

monitor switch and the stop 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.

DOOR ADJUSTMENT

The door is adjusted by keeping the screws of each hinge

loose. The lower oven hinge can be loosened.

After adjustment, make sure of the following :

1. Door latch heads smoothly catch the latch hook through

Remove door assembly, referring to "Door Replacement".

Replacement of door components are as follows:

CHOKE COVER

1. Place door assembly on a soft cloth with latches facing

up.

Note: As the engaging part of choke cover and door panel

DOOR REPLACEMENT AND ADJUSTMENT

DOOR DISASSEMBLY

LATCH

HEADS

DOOR OPEN

BUTTON

Figure C-1. Latch Switches Adjustment

the latch holes, and the latch head goes through the

center of the latch hole.

2. Deviation of the door alignment from horizontal line of

cavity face plate is to be less than 1.0mm.

3. The door is positioned with its face depressed toward

the cavity face plate.

4. Re-install outer case and check for microwave leakage

around the 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 the oven cavity during the

cook cycle. This function does not require that the

door be air-tight, moisture (condensation)-tight or

light-tight. Therefore, the occasional apperance of

moisture, light or the sensing of gentle warm air

movement around the oven door is not abnormal

and do not of themselves, indicate a leakage of

microwave energy from the oven cavity. If such

were the case, your oven could not be equipped

with a vent, the very purpose of which is to exhaust

the vapor-laden air from the oven cavity.

RE-INSTALL

DOOR ASSEMBLY

LATCH

HEADS

are provided at several places, do not force any particular

part.

2. Insert an putty knife (thickness of about 0.5mm) into the

gap between the choke cover and corner portion of

door panel as shown Figure C-2 to free engaging parts.

3. Lift up choke cover.

4. Now choke cover is free from door panel.

LATCH HOOK

UPPER LATCH SWITCH

STOP SWITCH

MONITOR SWITCH

LOWER LATCH SWITCH

SWITCH LEVER

OPEN LEVER

UPPER OVEN HINGE

LOWER OVEN HINGE

RE-INSTALL