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Sharp R-930AW Figure O-4. Oven Schematic-Convection Cooking Condition, 5. “START” PAD TOUCHED

Models: R-930AW

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SCHEMATIC

R-930AK

R-930AW

SCHEMATIC

1.DOOR CLOSED.

2.MIX COOKING PAD TOUCHED.

3.COOKING TIME PROGRAMMED.

4.“START” PAD TOUCHED.

5.RY2 AND RY3 WILL ALTERNATELY CLOSE. DURING COOK CYCLE.

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

POWER TRANSFORMER

CAPACITOR 0.94∝

H.V. RECTIFIER

MAGNETRON

Figure O-3. Oven Schematic-Automatic Mix Cooking Condition

SCHEMATIC

1.DOOR CLOSED.

2.CONVECTION PAD TOUCHED.

3.DESIRED TEMP. TOUCHED.

4.COOKING TIME PROGRAMMED.

5.“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-4. Oven Schematic-Convection Cooking Condition

POWER TRANSFORMER

CAPACITOR 0.94∝

H.V. RECTIFIER

MAGNETRON

10

Image 12

Sharp R-930AW Figure O-4. Oven Schematic-Convection Cooking Condition, SCHEMATIC 1. DOOR CLOSED 2. MIX COOKING PAD TOUCHED

Contents

TABLE OF CONTENTS SHARP ELECTRONICS CORPORATIONSERVICE MANUAL MODELS R-930AK R-930AWa Do not operate or allow the oven to be operated with the door open BEFORE SERVICING MICROWAVE MEASUREMENT PROCEDURE B. Preparation for testingA. Requirements C. Leakage testSERVICE MANUAL SHARP PLAZA, MAHWAH NEW JERSEYCONVECTION MICROWAVE OVEN R-930AK / R-930AW FOREWORD SHARP ELECTRONICS CORPORATIONSPECIFICATION GENERAL INFORMATIONDESCRIPTION GROUNDING INSTRUCTIONSOVEN DIAGRAM Interactive HELPTOUCH CONTROL PANEL ConvectionPOWER LEVEL P-0 TO P-90 COOKING OPERATIONDESCRIPTION OF OPERATING SEQUENCE OFF CONDITIONCONVECTION COOKING CONDITION AUTOMATIC MIX COOKING CONDITIONSENSOR COOKING CONDITION CONVECTION COOKING CONDITIONFIRE SENSING FEATURE MICROWAVE MODE COMPU BROIL/ COMPU ROAST/ COMPU BAKECOMPU DEFROST COOKING Cooking SequenceSCHEMATIC DIAGRAM Figure O-1. Oven Schematic-OFF ConditionFigure O-4. Oven Schematic-Convection Cooking Condition SCHEMATIC 1. DOOR CLOSED 2. MIX COOKING PAD TOUCHEDSCHEMATIC 1. DOOR CLOSED 2. CONVECTION PAD TOUCHED 3. COOKING TIME PROGRAMMED 4. “START” PAD TOUCHEDDOOR SENSING AND SECONDARY INTERLOCK SWITCHES OUTER CASE SWITCHESMONITOR SWITCH MAGNETRON TEMPERATURE FUSETROUBLESHOOTING GUIDE HEATING ELEMENTCONVECTION COOKING SYSTEM DAMPER OPEN-CLOSE MECHANISMTEST PROCEDURE PROBLEMPOSSIBLE CAUSE AND DEFECTIVE PARTS TEST PROCEDURES PROCEDUREA MAGNETRON ASSEMBLY TEST B POWER TRANSFORMER TESTTEST PROCEDURES PROCEDUREE SECONDARY INTERLOCK SWITCH TEST G MONITOR SWITCHTEST PROCEDURES PROCEDUREN DAMPER SWITCH TEST O CHECKING TEMPERATURE IN THE CONVECTION MODETEST PROCEDURES PROCEDUREP OUTER CASE SWITCH TEST Q TOUCH CONTROL PANEL ASSEMBLY TESTTEST PROCEDURES PROCEDURECOMPONENT TEST LETTERTEST PROCEDURES PROCEDURECOMPONENT TEST LETTERTEST PROCEDURES PROCEDURE TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNITLETTER COMPONENT TESTTOUCH CONTROL PANEL ASSEMBLY 2 Power Source Circuit3 Synchronizing Signal Circuit 6 Temperature Measurement Circuit OVEN THERMISTORDESCRIPTION OF LSI SignalPower source voltage Temperature measurement input OVEN THERMISTORsignal Damper motor relay driving signalHeating element driving signal Timing signal output terminal for temperature measurementOVEN THERMISSignal Signal similar to P27Signal similar to P27 Signal similar to P27ABSOLUTE HUMIDITY SENSOR CIRCUIT SignalSegment data signal Key strobe signalSERVICING 1 Servicing the touch control panel with power supply of the oven5. Other Precautions 2. Shapes of Electronic ComponentsCOMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE OUTER CASE SWITCHES REPLACEMENTPOWER TRANSFORMER REMOVAL OUTER CASE REMOVALHIGH VOLTAGE RECTIFIER ASSEMBLY REMOVAL POSITIVE LOCK CONNECTOR NO-CASE TYPE REMOVALMAGNETRON REMOVAL HIGH VOLTAGE CAPACITOR REMOVALDAMPER ASSEMBLY REMOVAL HEATER UNIT ASSEMBLY REMOVALTURNTABLE MOTOR REMOVAL HEATING ELEMENT/CONVECTION FAN/CONVECTION MOTOR/THERMISTORCONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVAL Do not hit the fan blade strongly when installedinstallation because the bracket may be disfiguredDOOR REPLACEMENT AND ADJUSTMENT DOOR SENSING SWITCH MONITOR FUSE MONITOR SWITCH SECONDARY INTERLOCKSWITCH DOOR DISASSEMBLY Figure C-5. Door Replacement and adjustmentFigure C-6. Door Disassembly Figure S-1. Pictorial Diagram HIGH VOLTAGE COMPONENTSCONTROL PANEL Circuit Control PanelFigure S-2 IZA797DR IC1Figure S-3. Printed Wiring Board BLK POWERPARTS LIST ELECTRICAL PARTSCABINET PARTS CONTROL PANEL PARTSOVEN PARTS REF. NODESCRIPTION CODEDOOR PARTS MISCELLANEOUSSCREWS NUTS AND WASHERS REF. NOPACKING AND ACCESSORIES OVEN CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUSR-930AK R-930AW 97 SHARP CORP. 6K2.770E Printed in U.S.A