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Sharp R-930AW service manual Figure S-3. Printed Wiring Board, Blk Power

Models: R-930AW

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Sharp R-930AW service manual Figure S-3. Printed Wiring Board, Blk Power

Contents

SHARP ELECTRONICS CORPORATION TABLE OF CONTENTSSERVICE MANUAL MODELS R-930AK R-930AWa Do not operate or allow the oven to be operated with the door open BEFORE SERVICING B. Preparation for testing MICROWAVE MEASUREMENT PROCEDUREA. Requirements C. Leakage testSHARP PLAZA, MAHWAH NEW JERSEY SERVICE MANUALCONVECTION MICROWAVE OVEN R-930AK / R-930AW FOREWORD SHARP ELECTRONICS CORPORATIONGENERAL INFORMATION SPECIFICATIONDESCRIPTION GROUNDING INSTRUCTIONSInteractive HELP OVEN DIAGRAMTOUCH CONTROL PANEL ConvectionOPERATION POWER LEVEL P-0 TO P-90 COOKINGDESCRIPTION OF OPERATING SEQUENCE OFF CONDITIONAUTOMATIC MIX COOKING CONDITION CONVECTION COOKING CONDITIONSENSOR COOKING CONDITION CONVECTION COOKING CONDITIONCOMPU BROIL/ COMPU ROAST/ COMPU BAKE FIRE SENSING FEATURE MICROWAVE MODECOMPU DEFROST COOKING Cooking SequenceFigure O-1. Oven Schematic-OFF Condition SCHEMATIC DIAGRAMSCHEMATIC 1. DOOR CLOSED 2. MIX COOKING PAD TOUCHED Figure O-4. Oven Schematic-Convection Cooking ConditionSCHEMATIC 1. DOOR CLOSED 2. CONVECTION PAD TOUCHED 3. COOKING TIME PROGRAMMED 4. “START” PAD TOUCHEDOUTER CASE SWITCHES DOOR SENSING AND SECONDARY INTERLOCK SWITCHESMONITOR SWITCH MAGNETRON TEMPERATURE FUSEHEATING ELEMENT TROUBLESHOOTING GUIDECONVECTION COOKING SYSTEM DAMPER OPEN-CLOSE MECHANISMPROBLEM TEST PROCEDUREPOSSIBLE CAUSE AND DEFECTIVE PARTS PROCEDURE TEST PROCEDURESA MAGNETRON ASSEMBLY TEST B POWER TRANSFORMER TESTPROCEDURE TEST PROCEDURESE SECONDARY INTERLOCK SWITCH TEST G MONITOR SWITCHPROCEDURE TEST PROCEDURESN DAMPER SWITCH TEST O CHECKING TEMPERATURE IN THE CONVECTION MODEPROCEDURE TEST PROCEDURESP OUTER CASE SWITCH TEST Q TOUCH CONTROL PANEL ASSEMBLY TESTPROCEDURE TEST PROCEDURESCOMPONENT TEST LETTERPROCEDURE TEST PROCEDURESCOMPONENT TEST LETTERTESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT TEST PROCEDURES PROCEDURELETTER COMPONENT TEST2 Power Source Circuit TOUCH CONTROL PANEL ASSEMBLY3 Synchronizing Signal Circuit 6 Temperature Measurement Circuit OVEN THERMISTORSignal DESCRIPTION OF LSIPower source voltage Temperature measurement input OVEN THERMISTORDamper motor relay driving signal signalHeating element driving signal Timing signal output terminal for temperature measurementOVEN THERMISSignal similar to P27 SignalSignal similar to P27 Signal similar to P27Signal ABSOLUTE HUMIDITY SENSOR CIRCUITSegment data signal Key strobe signal1 Servicing the touch control panel with power supply of the oven SERVICING5. Other Precautions 2. Shapes of Electronic ComponentsOUTER CASE SWITCHES REPLACEMENT COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDUREPOWER TRANSFORMER REMOVAL OUTER CASE REMOVALPOSITIVE LOCK CONNECTOR NO-CASE TYPE REMOVAL HIGH VOLTAGE RECTIFIER ASSEMBLY REMOVALMAGNETRON REMOVAL HIGH VOLTAGE CAPACITOR REMOVALHEATER UNIT ASSEMBLY REMOVAL DAMPER ASSEMBLY REMOVALTURNTABLE MOTOR REMOVAL HEATING ELEMENT/CONVECTION FAN/CONVECTION MOTOR/THERMISTORDo not hit the fan blade strongly when installed CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVALinstallation because the bracket may be disfiguredDOOR SENSING SWITCH MONITOR FUSE MONITOR SWITCH SECONDARY INTERLOCK DOOR REPLACEMENT AND ADJUSTMENTSWITCH Figure C-5. Door Replacement and adjustment DOOR DISASSEMBLYFigure C-6. Door Disassembly HIGH VOLTAGE COMPONENTS Figure S-1. Pictorial DiagramCONTROL PANEL Control Panel CircuitFigure S-2 IZA797DR IC1BLK POWER Figure S-3. Printed Wiring BoardELECTRICAL PARTS PARTS LISTCABINET PARTS CONTROL PANEL PARTSREF. NO OVEN PARTSDESCRIPTION CODEMISCELLANEOUS DOOR PARTSSCREWS NUTS AND WASHERS REF. NOPACKING AND ACCESSORIES OVEN DOOR PARTS MISCELLANEOUS CONTROL PANEL PARTS97 SHARP CORP. 6K2.770E Printed in U.S.A R-930AK R-930AW