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Sharp R-930AW service manual Schematic Diagram, Figure O-1. Oven Schematic-OFF Condition

Models: R-930AW

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SCHEMATIC DIAGRAM

IMPORTANT:

During sensor cooking operation, the fire sensing op- eration sequence will not begin until the AH sensor has

R-930AK

R-930AW

detected vapors and initiated a sensor cooking cycle. This is because the operation of the convection fan would interfere with the AH sensor's vapor detection.

SCHEMATIC DIAGRAM

SCHEMATIC

NOTE: CONDITION OF OVEN

1.DOOR CLOSED.

2.CLOCK APPEARS ON DISPLAY.

CONV.

MAGNETRON

THERMAL

TEMPERATURE

CUT-OUT

FUSE

FUSE

SWITCH

COM.

A-1

A-3

A-5

(RY1)

TTM

OVENLAMP

OL

FM CM

DM

RY4

RY5

RY6

RY1

MONITOR

TURNTABLEMOTOR

FANMOTOR

CONVECTIONMOTOR

DAMPERMOTOR

RY3

INTERLOCK

N.O.

N.O.

OUTER

(RY1)

CASE

SWITCH

COM.

A-7

(RY3)

RY2

RY2

COM.

A-9

PRIMARY

(RY2)

120V

CONTROL UNIT

RERAY

(RY2)

60Hz

N.O.

ELEMENT

OUTER

F-1

F-2

F-3

E-1 E-2 E-3 E-4 E-5 E-6

(RY3)

CASE

SWITCH

HEATIMG

SWITCH

AH SENSOR

SENSING

DAMPER

SECONDARY

DOOR

INTERLOCK

THER-

SWITCH

MISTOR

SWITCH

Figure O-1. Oven Schematic-OFF Condition

SCHEMATIC

1.DOOR CLOSED.

2.COOKING TIME PROGRAMMED.

3.“START” PAD TOUCHED.

CONV.

MAGNETRON

THERMAL

TEMPERATURE

CUT-OUT

FUSE

FUSE

SWITCH

COM.

A-1

A-3

A-5

(RY1)

TTM

OVENLAMP

OL

FM CM

DM

RY4

RY5

RY6

RY1

MONITOR

TURNTABLEMOTOR

FANMOTOR

CONVECTIONMOTOR

DAMPERMOTOR

RY3

INTERLOCK

N.O.

N.O.

OUTER

(RY1)

CASE

SWITCH

COM.

A-7

(RY3)

RY2

RY2

COM.

A-9

PRIMARY

(RY2)

120V

CONTROL UNIT

RERAY

(RY2)

60Hz

N.O.

ELEMENT

OUTER

F-1

F-2

F-3

E-1 E-2 E-3 E-4 E-5 E-6

(RY3)

CASE

SWITCH

HEATIMG

SWITCH

AH SENSOR

SENSING

DAMPER

SECONDARY

DOOR

INTERLOCK

THER-

SWITCH

MISTOR

SWITCH

Figure O-2. Oven Schematic-Microwave Cooking Condition

POWER TRANSFORMER

CAPACITOR 0.94∝

H.V. RECTIFIER

POWER TRANSFORMER

CAPACITOR 0.94∝

H.V. RECTIFIER

MAGNETRON

MAGNETRON

9

Image 11

Sharp R-930AW service manual Schematic Diagram, Figure O-1. Oven Schematic-OFF Condition

Contents

MODELS R-930AK R-930AW TABLE OF CONTENTSSHARP ELECTRONICS CORPORATION SERVICE MANUALa Do not operate or allow the oven to be operated with the door open BEFORE SERVICING C. Leakage test MICROWAVE MEASUREMENT PROCEDUREB. Preparation for testing A. RequirementsSHARP ELECTRONICS CORPORATION SERVICE MANUALSHARP PLAZA, MAHWAH NEW JERSEY CONVECTION MICROWAVE OVEN R-930AK / R-930AW FOREWORDGROUNDING INSTRUCTIONS SPECIFICATIONGENERAL INFORMATION DESCRIPTIONConvection OVEN DIAGRAMInteractive HELP TOUCH CONTROL PANELOFF CONDITION POWER LEVEL P-0 TO P-90 COOKINGOPERATION DESCRIPTION OF OPERATING SEQUENCECONVECTION COOKING CONDITION CONVECTION COOKING CONDITIONAUTOMATIC MIX COOKING CONDITION SENSOR COOKING CONDITIONCooking Sequence FIRE SENSING FEATURE MICROWAVE MODECOMPU BROIL/ COMPU ROAST/ COMPU BAKE COMPU DEFROST COOKINGFigure O-1. Oven Schematic-OFF Condition SCHEMATIC DIAGRAM3. COOKING TIME PROGRAMMED 4. “START” PAD TOUCHED Figure O-4. Oven Schematic-Convection Cooking ConditionSCHEMATIC 1. DOOR CLOSED 2. MIX COOKING PAD TOUCHED SCHEMATIC 1. DOOR CLOSED 2. CONVECTION PAD TOUCHEDMAGNETRON TEMPERATURE FUSE DOOR SENSING AND SECONDARY INTERLOCK SWITCHESOUTER CASE SWITCHES MONITOR SWITCHDAMPER OPEN-CLOSE MECHANISM TROUBLESHOOTING GUIDEHEATING ELEMENT CONVECTION COOKING SYSTEMPOSSIBLE CAUSE AND DEFECTIVE PARTS TEST PROCEDUREPROBLEM B POWER TRANSFORMER TEST TEST PROCEDURESPROCEDURE A MAGNETRON ASSEMBLY TESTG MONITOR SWITCH TEST PROCEDURESPROCEDURE E SECONDARY INTERLOCK SWITCH TESTO CHECKING TEMPERATURE IN THE CONVECTION MODE TEST PROCEDURESPROCEDURE N DAMPER SWITCH TESTQ TOUCH CONTROL PANEL ASSEMBLY TEST TEST PROCEDURESPROCEDURE P OUTER CASE SWITCH TESTLETTER TEST PROCEDURESPROCEDURE COMPONENT TESTLETTER TEST PROCEDURESPROCEDURE COMPONENT TESTCOMPONENT TEST TEST PROCEDURES PROCEDURETESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT LETTER6 Temperature Measurement Circuit OVEN THERMISTOR TOUCH CONTROL PANEL ASSEMBLY2 Power Source Circuit 3 Synchronizing Signal CircuitTemperature measurement input OVEN THERMISTOR DESCRIPTION OF LSISignal Power source voltageTiming signal output terminal for temperature measurementOVEN THERMIS signalDamper motor relay driving signal Heating element driving signalSignal similar to P27 SignalSignal similar to P27 Signal similar to P27Key strobe signal ABSOLUTE HUMIDITY SENSOR CIRCUITSignal Segment data signal2. Shapes of Electronic Components SERVICING1 Servicing the touch control panel with power supply of the oven 5. Other PrecautionsOUTER CASE REMOVAL COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDUREOUTER CASE SWITCHES REPLACEMENT POWER TRANSFORMER REMOVALHIGH VOLTAGE CAPACITOR REMOVAL HIGH VOLTAGE RECTIFIER ASSEMBLY REMOVALPOSITIVE LOCK CONNECTOR NO-CASE TYPE REMOVAL MAGNETRON REMOVALHEATING ELEMENT/CONVECTION FAN/CONVECTION MOTOR/THERMISTOR DAMPER ASSEMBLY REMOVALHEATER UNIT ASSEMBLY REMOVAL TURNTABLE MOTOR REMOVALbecause the bracket may be disfigured CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVALDo not hit the fan blade strongly when installed installationSWITCH DOOR REPLACEMENT AND ADJUSTMENTDOOR SENSING SWITCH MONITOR FUSE MONITOR SWITCH SECONDARY INTERLOCK Figure C-6. Door Disassembly DOOR DISASSEMBLYFigure C-5. Door Replacement and adjustment CONTROL PANEL Figure S-1. Pictorial DiagramHIGH VOLTAGE COMPONENTS IZA797DR IC1 CircuitControl Panel Figure S-2BLK POWER Figure S-3. Printed Wiring BoardCONTROL PANEL PARTS PARTS LISTELECTRICAL PARTS CABINET PARTSCODE OVEN PARTSREF. NO DESCRIPTIONREF. NO DOOR PARTSMISCELLANEOUS SCREWS NUTS AND WASHERSPACKING AND ACCESSORIES OVEN DOOR PARTS MISCELLANEOUS CONTROL PANEL PARTS97 SHARP CORP. 6K2.770E Printed in U.S.A R-930AK R-930AW