Sharp R-1481, R-1480, R-1482 Outer Case Removal, Power Transformer Removal, Re-install

Models: R-1481 R-1482 R-1480

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OUTER CASE REMOVAL

R-1480

R-1481

R-1482

4. Pull the hood exhaust louver from the oven cavity by

to remove.

pushing the right and left tabs of the hood exhaust louver

5. Now, the hood exhaust louver is free.

REMOVAL OF OVEN FROM WALL (Two persons recommended to remove the oven)

1.Disconnect the power supply cord, and uncoil the power supply cord.

2.Remove the turntable tray and support from the oven cavity.

3.Remove the one (1) screw holding the exhaust damper assembly to the rear stay, and remove the exhaust damper assembly by sliding it backward.

4.Remove the two (2) screws holding the oven (outer case cabinet) to the top cabinet.

5.Remove the hood exhaust louver referring to "HOOD

EXHAUST LOUVER REMOVAL".

6.While supporting the front of the oven, unfasten the two

(2)unit mounting screws holding the oven to the unit mounting plate.

7.Remove the oven by sliding it into the arms of the unit mounting plate and pull the power cord out of the wall cabinet.

8.The oven is now free and can be placed on the work surface selected for servicing the oven.

9.Installation is the reverse of this procedure.

OUTER CASE REMOVAL

Remove the oven from the wall and proceed as follows;

1.Disconnect the power supply cord.

2.Open the door and block it open.

3.Remove one (1) screw holding the hood exhaust louver to the oven, and pull it forward to remove by pushing the right and left tabs of the hood exhaust louver. (Refer to procedure of "HOOD EXHAUST LOUVER REMOVAL".)

4.Remove four (4) screws holding the rear stay to the hood fan motor or the oven, and remove it.

5.Remove the four (4) screws from the rear of the outer case cabinet.

6.Slide the outer case cabinet back about 1 inch (3 cm) to

free it from retaining clips on the cavity face plate.

7.Disconnect the three (3) pin connector of the power supply cord from the wiring harness and remove the power supply cord together with the outer case.

8.Discharge high voltage capacitor.

CAUTION: 1. DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE.

2.DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.

POWER TRANSFORMER REMOVAL

1.Disconnect the power supply cord, remove the oven from wall, and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer Case Removal".) And proceed as follows.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Remove one (1) screw holding the hood duct to the oven cavity front flange.

5.Disconnect the stop switch harness from the chassis support and disconnect the wire leads from the fan motor.

6.Lift up the fan motor side of the hood duct.

7.Disconnect filament leads of transformer from the magnetron and capacitor.

8.Disconnect high voltage leads of capacitor from the transformer.

9.Disconnect wire leads from transformer.

10.Remove two (2) screws holding the transformer to right base plate.

Re-install

1.Install by sliding the transformer on the right base plate with its primary terminals toward the outer case.

2.Secure the transformer with two (2) screws to right base plate.

3.Re-connect wire leads (primary and high voltage) to the transformer and filament leads of transformer to magnetron and high voltage capacitor. Refer to

"PICTORIAL DIAGRAM".

4.Re-install the hood duct holding the fan motor to the oven cavity front flange with one (1) screw.

5.Reconnect the wire leads to the chassis support and the fan motor, referring to "PICTORIAL DIAGRAM".

6.Re-install the outer case and check that oven is operating properly.

CAUTION: MAKE SURE THE WIRE LEADS NEVER TOUCH THE FAN BLADE.

HOOD FAN MOTOR, HOOD DUCT AND OVEN LAMP SOCKET REMOVAL

1.Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect the 6-pin connector of the hood fan motor from the main wire harness located at the right edge of the hood duct and release the snap band from the hood duct.

5.Remove the hood fan motor from the hood duct by lifting it up.

6.Now, the hood fan motor is free.

7.Remove one (1) screw holding the hood duct to the oven cavity front plate.

8.Release the 6-pin connector and the 3-pin connector of the main harness A from the hood duct.

9.Disconnect the wire leads from the fan motor and chassis support, and release the wire leads from holes of the

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Sharp R-1481, R-1480, R-1482 service manual Outer Case Removal, Power Transformer Removal, Re-install