Pictorial Diagram - Sharp R-370EK Service Manual

Hide thumbs Also See for R-370EK:

Operation manual (24 pages)

Table of Contents

6. Lift entire outer case from the unit.

CAUTION: 1. DISCONNECT OVEN FROM POWER SUP

PLY BEFORE REMOVING OUTER CASE.

2. DISCHARGE THE HIGH VOLTAGE CA-

PACITOR BEFORE TOUCHING ANY OVEN

Before removal of the power transformer, high voltage

capacitor, high voltage rectifire, magnetron, fan motor and

turntable motor, the oven cavity must be removed from base

plate as follows.

Removal

1. Disconnect the power supply cord and then remove

outer case (refer to "OUTER CASE REMOVAL").

2. Open the oven door and block it open.

3. It is recommended that the door is removed from the

oven cavity. Refer to "DOOR REPLACEMENT".

4. Disconnect the wire leads from the power supply cord,

turntable motor, thermal cut-out (oven), thermal cut-out

(MG.), all switches on the latch hook, magnetron and

oven lamp.

5. Release the two (2) snap bands of the main wire harness

from the oven cavity.

6. Remove the two (2) screws holding the front leg to the

base plate.

7. Remove the front cover from the oven cavity by releasing

the three (3) tabs.

8. Remove the two (2) screws holding the waveguide

flange of the oven cavity to the base plate.

9. Remove the three (3) screws holding the base plate to

the oven cavity front plate.

10.Remove the three (3) screws holding the base plate to

the oven cavity back plate.

11.Lift up the oven cavity assembly and remove it from the

base plate.

12.Now the power transformer, high voltage capacitor, high

1. Disconnect the power supply cord and then remove

outer case.

2. Remove the oven cavity assembly from the base plate.

Refer to "OVEN CAVITY ASSEMBLY REMOVAL".

3. Discharge the high voltage capacitor.

4. Disconnect the wire leads (primary and high voltage)

from power transformer and the filament leads from the

magnetron and capacitor terminals.

5. Remove four (4) screws holding transformer to base

plate.

6. Remove transformer from base plate.

HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL

1. Disconnect the power supply cord and then remove

outer case.

2. Remove the oven cavity assembly from the base plate.

Refer to "OVEN CAVITY ASSEMBLY REMOVAL".

OVEN CAVITY ASSEMBLY REMOVAL

POWER TRANSFORMER REMOVAL

COMPONENTS OR WIRING.

NOTE: When replacing the outer case, the 2 special

Torx screws must be reinstalled in the same

locations.

voltage rectifier and fan motor can be found on the base

plate.

13.The magnetron can be found at wavegide flange of the

oven cavity.

14. The turntable motor can be found under the oven cavity

bottom plate.

Reinstallation

1. Make sure that the electrical parts on the base plate are

reinstalled at their positions.

2. Make sure that the wire leads are reconnected to their

correct positions. Refer to the "PICTORIAL DIAGRAM".

3. Reinstall the oven cavity assembly on the base plate.

4. Hold the base plate to the oven cavity back plate with

three (3) screws.

5. Hold the base plate to the oven cavity front plate with

three (3) screws.

6. Hold the waveguide flane of the oven cavity to the base

plate with two (2) screws.

7. Reinstall the front leg to the oven cavity front plate.

8. Hold the front cover to the base plate with two (2) screws.

9. Insert the two (2) snap bands of main wire harness to the

two (2) holes of oven cavity.

10. Reconnect the wire leads to the magnetron, all switches,

thermal cut-out (MG.), thermal cut-out (oven.), oven

lamp, turntable motor and power supply cord. Refer to

the "PICTORIAL DIAGRAM" on page 32.

11. If the door has been removed, reinstall the door to the

oven cavity. Refer to "DOOR REPLACEMENT".

12. Now, the oven cavity assembly should be reinstalled.

Reinstallation

1. Rest transformer on the base plate with its primary

terminals toward the left side.

2. Secure transformer with four screws to base plate.

3. Re-connect wire leads (primary and high voltage) to

power transformer and filament leads of transformer to

magnetron and high voltage capacitor. Refer to