Sharp R-21JCA-F Installation of Ceramic Shelf, Figure C-10. Stirrer Antenna Assembly Installation

Page 28

R-21JCA-F

To left wall of		Flat face	Antenna
oven cavity			motor shaft
			To right wall
			of oven cavity
		Flat face
Antenna holder	Hole		Centre
Antenna holder	Hole

Stirrer antenna

Stirrer antenna's big blade

Figure C-9. Derection of Antenna Motor Shaft and Stirrer Antenna Assembly

Antenna holder	Stirrer antenna

Tab

Antenna motor shaft

Stirrer antenna assembly

Tab

Antenna motor shaft

Oven cavity bottom plate

Antenna holder

Stirrer antenna

Antenna	Tab
motor shaft

Oven cavity bottom plate

Figure C-10. Stirrer Antenna Assembly Installation

INSTALLATION OF CERAMIC SHELF

1.Disconnect the power supply cord.

2.Open the door and block it open.

3.Make sure that the smooth surface of the ceramic shelf face up.

4.Make sure that the rubber packing without a fin of the ceramic shelf faces the front of the oven.

NOTE: The three (3) rubber packings with the fins and the one (1) rubber packing without a fin are attached to the four (4) edges of the ceramic shelf. The one (1) rubber packing without a fin is the front edge of the ceramic shelf.

5.Put the front edge of the ceramic shelf into the front edge of the oven cavity bottom plate.

6.Push down the rear edge of the ceramic shelf into the oven cavity bottom plate.

7.Now, the ceramic shelf is installed.

WARNING

Make sure that the rubber packing is not caught between the oven door and the oven cavity front plate, to avoid possible exposure to excessive microwave energy.

Oven Cavity

Rear Edge

Push

	Ceramic
Front Edge	Shelf

26

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Contents Model R-21JCA-F Before Servicing When the testing is completed Dont Touch Before ServicingRequirements Microwave Measurement ProcedureLeakage test Light Duty Commercial Microwave Oven 21JCA-F Foreword Sharp Electronics CorporationSpecification General InformationMaximum width, depth and height Actual capacity for holding food is lessOven Diagram 10 6Operation Description of Operating SequenceOFF Condition Cooking ConditionFigure O-1 Oven Schematic-OFF Condition FM AMDescription and Function of Components Test Procedure Possible Case Defective Parts Troubleshooting GuideProblem Microwave Output Power Power Transformer TestThermal CUT-OUT Test 125˚C Oven High Voltage Capacitor TestThermal CUT-OUT Test 145˚C Magnetron Door Sensing Switch Monitor Switch TestPrimary Interlock System Test Primary Interlock Relay RY1Before testing Control Panel Assembly TestNoise Filter Test Test Procedures Letter Component Test Relay TestSteps Occurrence Cause or Correction Touch Control Panel Assembly Description of LSIPin No Signal Description Auto clear terminal Power source voltageInternal clock oscillation frequency input setting Power source voltage +5VOther Precautions Touch Control Panel ServicingServicing of Touch Control Panel Servicing ToolsPrecautions for Using LEAD-FREE Solder Using lead-free wire solderEmploying lead-free solder SolderingPower Transformer Removal Component Replacement and Adjustment ProcedureOuter Case Removal Magnetron Removal Control Panel Assembly RemovalOven Lamp and Lamp Socket Removal Positive Lock Connector NO-CASE Type Removal Antenna Motor RemovalCooling FAN Motor Removal Rear ViewRe-install Power Supply Cord ReplacementRemoval Door Parts Removal After any service, make sure of the following Antenna Motor Shaft ReplacementRemoval Installation of Ceramic Shelf Figure C-10. Stirrer Antenna Assembly InstallationPictorialDiagram HighvoltagecomponentsCN-A3 Pin5mm Pitch Figure S-3. Printed Wiring Board Parts List Electric PartsCabinet Parts Control Panel PartsHOW to Order Replacement Parts Door PartsMiscellaneous SCREWS,NUTS and WashersOven and Cabinet Parts Control Panel Parts Packing and Accessories Copyright 2005 by Sharp Corporation ALL Rights Reserved