R-22AMM (serv.man10). Component Replacement And Adjustment Procedure - Sharp Home Appliance Service Manual (repair manual). Page 5

R22AMM

10 – 5

14. Remove the knob from the rotary encoder shaft.

15. Remove the one (1) special nut holding the rotary encoder to the

       rotary encoder mounting plate.

16. Now, the rotary encoder is free.

1. CARRY OUT 3D CHECKS.

2. Release the cord bushing from the rear cabinet.

3. Disconnect the brown and blue wires of the power supply cord from

the noise filter.

4. Remove the single (1) screw holding the earth wire of power supply

cord.

5. Remove the power supply cord.

1. Insert the power supply cord into the cord bushing.

2. Connect the brown and blue wires of power supply cord into the

terminals of noise filter, referring to pictorial diagram. 

3. Install the green/yellow wire of power supply cord with the one (1)

screw.

4. Re-install the cord bushing to the rear cabinet.

5. CARRY OUT 4R CHECKS.

Figure C-4. Power Supply Cord Replacement

1. CARRY OUT 3D CHECKS.

2. Remove the control panel from the oven cavity referring to “CON-

TROL PANEL REMOVAL”.

3. Remove the two (2) screws holding the latch hook to the oven cav-

ity.

4. Open the door and pull the latch hook out of the oven cavity.

5. For stop switch removal

1) Disconnect the wire leads from the switch.

2) Push the retaining tabs outward slightly and then pull the switch

forwards and remove it from the latch hook.

6. For interlock or monitor switches removal

1) Disconnect the wire leads from the interlock or monitor

switches.

2) Remove the single (1) screw and nut holding the interlock or

monitor switches to the latch hook.

CAUTION: IF THE LATCH HOOK IS NEW, WHEN THE INTERLOCK

SWITCHES OR MONITOR SWITCHES ARE INSTALLED,
THE TWO (2) TABS OF THE LATCH HOOK SHOULD BE
BROKEN.

In case interlock switches, stop switch and monitor switches do not
operate properly due to a mis-adjustment, the following adjustment
should be made.

1. Loosen the two (2) screws holding the latch hook.

2. With the door closed, adjust the latch hook by moving it back and

forward, or up and down. In and out play of the door allowed by the
latch hook should be less than 0.5mm. The vertical position of the
latch hook should be placed where the stop switch and interlock
switches have activated with the door closed.

The horizontal position of the latch hook should be placed where
the monitor switches have activated with the door closed.

3. Secure the screws with washers firmly.

4. Make sure of the interlock switches, stop switch, and monitor

switches operation. If those switches have not activated with the
door closed, loose two (2) screws holding latch hook and adjust the
latch hook position.

1. In and out play of door remains less than 0.5mm when in the

latched position.

2. The stop switch and interlock switches interrupt the circuit before

the door open when the door release lever is pulled, and then and
monitor switch close the circuit when the door is opened.

3. Re-install outer case and check for microwave leakage around the

door with an approved microwave survey meter. (Refer to Micro-
wave Measurement Procedure.) 

Figure C-5 Latch Switch Adjustments

Power supply cord

Cord bushing

Screw

Green/Yellow

wire

Brown wire

Blue wire

L

N

Noise filter

Latch head

SW4: Monitor switch

(Oven side)

SW3: Monitor switch

Latch hook

SW1: Interlock switch

SW2: Interlock switch

(Oven side)

SW5: Stop switch

Latch head

Joint lever

Door release
lever

Head lever