Sharp r-8580 manual 240V-50Hz G-4, Figure O-l. Oven Schematic-OFF Condition

Page 8

MONITOR RESISTOR O.B/2OW MON,TOR SW,TCH

OVEN LAMP

TEMP.

FUSE 142’C

240V-50Hz G-4

		MBA
			TEMP.
			FUSE
I,	MONITOR RESISTOR D.B/2DW	MONITOR SWITCH	I142’C
	OVEN LAMP

				n
				FAN MOTOR
	AC	CORD CONNECTION
	BRN	BROWN
	BLU	: BLUE		RELAY-UNIT	A-3
	G-Y	GREEN	AND	RELAY-UNIT	A-3
	G-Y	GREEN	AND	-______
		YELLOW	STRIPE
	I17	: SECTIONAL		AREA
		OF l.Omm’		MIN.

LOWER

LATCH

SWITCH

1 DOOR CLOSE0

DAMPER MOTOR

-

TURNTABLE MOTOR

CONVECTION HEATER

I	; POWER	TRANSFORMER
	I	1

A

MAGNETRON

HIGH VOLTAGE

RECTIFIER

AC	CORD CONNECTION
BRN	BROWN
BLU	BLUE
G-Y	GREEN	AND
	YELLOW	STRIPE
/I7	SECTIONAL		AREA
	OF l.Omm’		MIN

UPPER

LATCH

SWITCH

NC

?

SENSOR COOKING

NOTE CONDITION

1 DOOR CLOSED

2 ‘SENSOR COOK”

PAD TOUCHED

3 START’ PAD

HIGH COOKING

1 DOOR CLOSED

2 COOKING TIME

PROGRAMMED

3 VARIABLE COOKING

I

I

LOWER

-I .ATI-..

SWITCH

d ^-^^

RECTIFIER ,

I i

RELAY-UNIT -_-

UPPER

LATCH

SWITCH

wl. RW-6+A-7NC

A-5 c

A

RV6

1I

-

CONVECTION%EATER

POWER TRANSFORMER

It

MAGNETRON

HIGH VOLTAGE

RECTIFIER

Figure O-l. Oven Schematic-OFF Condition

Figure O-2. Oven Schematic-High and Sensor Cooking Condition

Image 8

Contents Sharp Microwave Radiation Sharpcorporatkn OSAKA, JapanConvection Microwave Oven 8580Specification Product DescriptionAuto-TouchTM Control Panel Operation Description of Operating SequenceOFF Condition Cooking ConditionConvection Cooking Condition Automatic MIX Cooking ConditionPreheating Condition Convection Cooking ConditionSensor Cooking Condition Compu CookEasy Defrost Cooking Cooking SequenceFigure O-l. Oven Schematic-OFF Condition 240V-50Hz G-4Figure O-3. Oven Schematic-Convection Cooking Condition Description and Function of Components Damper OPEN-CLOSE Mechanism Convection HeaterConvection Cooking System OFF Condjtion Problem Possible Cause Test Procedure CorrectionServicing Problem Possible Cause Test Procedure or Correction Nents Defective Convection Heater Procedure RelayRY4 Unit Test Procedures Letter Component Magnetron Assembly Test Microwave Output PowerProcedure Letter Test Procedures CONT’D Component Test Power Transformer TestSwitch Test High Voltage Rectifier and Rectifier TestTest Procedures CONT’D Letter Component Monitor Switch Test Blown FuseTEMP. Fuse Test Thermal CUT-OUTProcedure Letter Damper Switch TestThermistor Test Damper Motor TestTest Procedures CONT’O Letter Component Relay Unit Relay Symbol Operational Connected Components VoltageKEY Unit Test Water load cooking test Testing Method for AH Sensor AND/OR Control UnitChecking the initial sensor cooking condition Sensor Dummy Resistor Circuit Steps Occurance Cause or CorrectionLSI Touch Control Panel AssemblyOutline of Touch Control Panel Description of LSJ LSI IZA096DRSeqment Data signal Seqment Data SiqnalKev strobe siqnal Internal clock oscillation frequency input settinqSignal to Sound Signal svnchronized with commercial source frequencv50HzPower source voltage Magnetron High-voltaae Circuit driving SignalDamper motor relav driving signal Input signal which communicates the door open/closeSignal cominq from touch kev Signal coming from touch keyTemperature measurement input Oven Thermistor Sensor InuutRI4 Terminal For Manufacture TestAbsolute Humidity Sensor CircuitOther Precautions ServicingShapes of Electronic Components Servicing of Touch Control PanelComponent Replacement and Adjustment Procedure Power Transformer RemovalHigh Voltage Capacitor Removal Turntable Motor AND/OR Coupling RemovalCooling FAN Motor Removal Magnetron RemovalConvection Motor Removal Upper Latch Switch / Monitor Switch Removal Lower Latch Switch and Stop Switch RemovalDamper RemovalControl Panel Assembly and CPU Unit Removal CPU Unit and KEY UnitDoor Adjustment Door Replacement and AdjustmentDoor Replacement Requirement Preparation for TestingMicrowave Measurement 11II II II II OIL 8580 Figure S-3. Printed Wiring Board II IParts List AY AK AF AHQ8L RR-DZ561PDREOAT AH FOVN-A090WRYO AG AD 11 AA 13 AA Ii AA Replacement Parts List 8580 Control Panel Parts Door Assembly Miscellaneous ‘Y \‘\Packing and Accessories 8580 8580 Sharp