Sharp R-15AT Service Manual Download Page 26

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R-15AT

1. CARRY OUT 3D CHECKS.
2. Disconnect the high voltage wire of the high voltage

rectifier assembly and filament lead of the transformer
from the magnetron.

3. Remove the one (1) screw holding the air guide to the

magnetron and remove the air guide.

4. Remove the one (1) screw holding the chassis support to

the magnetron.

5. Carefully remove four (4) screws holding magnetron to

waveguide, when removing the screws hold the magnet-
ron to prevent it from falling.

6. Remove the magnetron from the waveguide with care so

the magnetron antenna is not hit by any metal object
around the antenna.

CAUTION: WHEN REPLACING THE MAGNETRON, BE

SURE THE R.F. GASKET IS IN PLACE AND
THE MAGNETRON MOUNTING SCREWS
ARE TIGHTENED SECURELY.

CONTROL PANEL ASSEMBLY
1. CARRY OUT 3D CHECKS.
2. Disconnect the main wire harness from the control unit.
3. Remove the one (1) screw holding the control panel

assembly to the oven cavity front plate.

4. Lift up the control panel assembly.
5. Now, the control panel assembly is free.

CONTROL UNIT
6. Disconnect the flat ribbon cable from the connector CN-G.
7. Remove the six (6) screws holding the control unit to the

control panel frame.

8. Release the two (2) tabs of the control panel frame holding

CONTROL PANEL ASSEMBLY REMOVAL

the control unit to the control panel frame.

9. Now, the control unit is free.

NOTE: 1. Before attaching a new key unit, wipe off remain-

ing adhesive on the control panel frame surfaces
completely with a soft cloth soaked in alcohol.

2. When attaching the key unit to the control panel

frame, adjust the upper edge and right edge of the
key unit to the correct position of control panel
frame.

3. Stick the key unit firmly to the control panel frame

by rubbing with a soft cloth so not to cause
scratches.

1. CARRY OUT 3D CHECKS.
2. Screw the oven lamp from the oven lamp socket off.
3. Now, the oven lamp is free.
4. Lift up the oven lamp socket from air intake duct.
5. Pull the wire leads from the oven lamp socket by pushing

the terminal hole of the oven lamp socket with the small
flat type screw driver.

6. Now, the oven lamp socket is free.

OVEN LAMP AND LAMP SOCKET REMOVAL

Figure C-1. Oven lamp socket

4. Remove one (1) screw holding earth side terminal of the

high voltage rectifier assembly.

5. Disconnect high voltage fuse and terminal of high voltage

rectifier assembly from the high voltage capacitor.

6. Now, the high voltage rectifier assembly should be free.
7. Disconnect the high voltage fuse from the high voltage

transformer.

8. Now, the high voltage fuse is free.
9. Remove one (1) screw holding the capacitor holder to the

oven cavity rear plate.

10. Remove one (1) screw holding the fan duct to the oven

cavity rear plate.

11. Release the capacitor holder from the fan duct.
12. Remove the capacitor from the capacitor holder.
13. Now, the capacitor should be free.

CAUTION: WHEN REPLACING HIGH VOLTAGE REC-

TIFIER ASSEMBLY, ENSURE THAT THE
CATHODE (EARTH) CONNECTION IS SE-
CURELY FIXED TO THE CAPACITOR
HOLDER AND OVEN CAVITY REAR PLATE
WITH AN EARTHING SCREW.

MAGNETRON REMOVAL

POSITIVE LOCK

CONNECTOR (NO-CASE TYPE) REMOVAL

1. CARRY OUT 3D CHECKS.
2. Push the lever of positive lock

connector.

3. Pull down on the positive lock

connector.

CAUTION: WHEN CONNECTING THE POSITIVE LOCK

CONNECTORS TO THE TERMINALS, IN-
STALL THE POSITIVE LOCK

CONNECTOR

SO THAT THE LEVER FACES YOU

Figure C-2