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Sharp R-1500, R-1505, R-1501, R-1506 service manual Figure S-2. Power Unit Circuit, VRS1

Models: R-1506 R-1501 R-1505 R-1500

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VRS1

R-1500

R-1501

R-1505

R-1506

	1	2				3		4		5	6
A
B					T1	D1-D4
B				3	8	1N4002
		VRS1	10G471K	3	8
		VRS1	10G471K			D3	D1
						D3	D1
			(J1)				/50v0.1C1∝	/35v1000C2∝		C 1	GND
			(J1)				/50v0.1C1∝	/35v1000C2∝
			d	1	5	D4	D2	+
			d	1	5	D4	D2
		a						–
		a
								R1 750 1w		C 7	VC
C								R1 750 1w		R2 750 1w
			b							C 3	VA
			b
									+	C 5	INT
		c						–	+
		c
	AC(N)	N.O			D21	1SS270A		C21			MOTOR
	TURNTABLE				D21	1SS270A		10∝	/35v		MOTOR
	OVEN LAMP										OVEN LAMP
	OVEN LAMP									C12	TURNTABLE
										C12	TURNTABLE
	MOTOR	COM						Q21		3.3k	FAN MOTOR
D	FAN MOTOR	N.O	RY1					KRC243M		3.3k
	AC(H)	N.O			D22	1SS270A				R30
					D22	1SS270A		SP1		R30	BUZZER
								SP1		C 4	BUZZER
								PKM22EPT
	MICRO.	COM								C11	MICRO.
		B 7	RY2							C10	HOOD MOTOR
	HIGH	B 7			D23	1SS270A				C10	HOOD MOTOR
	HOOD MOTOR				D23	1SS270A					H/L
											H/L
		B 9
	LOW	B 9
E	HOOD		RY3
			RY3								HOOD MOTOR
		B 5								C 9	HOOD MOTOR
	THERMAL	B 5			D24	1SS270A				C 9	COM.
	CUT-OUT				D24	1SS270A
	CUT-OUT
	HOOD MOTOR									C 2	VR
	HOOD MOTOR	A 5
	COM.	A 5	RY4
	COM.
										C 8	HOOD LAMP
						1SS270A				C 8	HOOD LAMP
F	HOOD LAMP	B 3			D25	1SS270A
F
			RY5
	CN-B		RY5							C 6	HOOD LAMP
	CN-B				D26	1SS270A				C 6	HOOD LAMP
					D26	1SS270A				D20
										1SS270A
	HOOD LAMP	B 1	RY6							C13	Q22
		A 3	RY6							C14	DOOR
		A 3
	MOTOR RUN
	MOTOR RUN		C100 7∝							1SS270A	SENSING
	CAPACITOR		C100 7∝							1SS270A	SWITCH
	CAPACITOR		/230v							D40	SWITCH
G		A 1

CN-A

2

1

CN-C

14pin

DOOR

E

E

CN-E

WIRE HARNESS

NOTE

SENSING

: IF NOT SPECIFIED, 1/4W ±

SWITCH

5%

H

Figure S-2. Power Unit Circuit

1

2

3

4

5

6

A

B

C

D

E

F

G

H

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Image 36

Sharp R-1500, R-1505, R-1501, R-1506 service manual Figure S-2. Power Unit Circuit, VRS1

Contents

TABLE OF CONTENTS SHARP CORPORATIONOVER THE RANGE MICROWAVE OVENBEFORE SERVICING WARNING TO SERVICE PERSONNEL After repairingDont Touch Danger High Voltage Before ServicingMICROWAVE MEASUREMENT PROCEDURE B. Preparation for testingA. Requirements C. Leakage testSERVICE MANUAL DANGERSHARP PLAZA, MAHWAH NEW JERSEY If provided, Vent Hood, Fan assembly, Cooling Fan MotorPRODUCT SPECIFICATION GENERAL INFORMATIONDESCRIPTION GROUNDING INSTRUCTIONSOVEN DIAGRAM CONTROL PANEL 1 2 4COOK CENTER DEFROST CENTERPOWER LEVEL P-0 TO P-90 COOKING OPERATIONDESCRIPTION OF OPERATING SEQUENCE OFF CONDITIONVENTILATION METHODS HOT AIR EXHAUST To DuctHood Fan Motor To Duct Hood Intake Duct R Grease Filter CharcoalFigure O-1. Oven Schematic-Off Condition Figure O-2. Oven Schematic-Cooking ConditionNOTE indicates components with potential above R-1500 R-1501 R-1505 R-1506TEMPERATURE FUSE MG DOOR SENSING AND PRIMARY INTERLOCK SWITCHESMONITOR SWITCH DESCRIPTION AND FUNCTION OF COMPONENTSTROUBLESHOOTING GUIDE HOOD FAN MOTORHOOD LAMP When the testing is completedCK = Check / RE = Replace POSSIBLE CASE AND DEFECTIVE PARTSTEST PROCEDURES PROCEDUREA MAGNETRON ASSEMBLY TEST MICROWAVE OUTPUT POWERTEST PROCEDURES PROCEDUREMAGNETRON TEMPERATURE FUSE TEST LETTERTEST PROCEDURES PROCEDUREF PRIMARY INTERLOCK SWITCH TEST G SECONDARY INTERLOCK SYSTEM TEST DOOR SENSING SWITCHTEST PROCEDURES PROCEDURECOMPONENT TEST LETTERTEST PROCEDURES PROCEDUREL TOUCH CONTROL PANEL ASSEMBLY TEST Before testingTEST PROCEDURES PROCEDURELETTER COMPONENT TESTTEST PROCEDURES PROCEDUREFOIL PATTERN ON THE PRINTED WIRING BOARD TEST LETTERTEST PROCEDURES PROCEDUREQKITPB035 LETTERTOUCH CONTROL PANEL ASSEMBLY DESCRIPTION OF LSI2 Power Source Circuit 3 Synchronizing Signal CircuitSignal OUT Oven lamp, fan motor and turntable motor driving signalSignal synchronized with commercial power source frequency Internal clock oscillation frequency input settingSignal Key strobe signalKey strobe 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 THE FOLLOWING ADJUSTMENTS OR COMPONENT REPLACEMENT CAN BE PERFORMEDWITHOUT REMOVING THE OVEN FROM THE WALL HOOD EXHAUST LOUVER REMOVALPOWER TRANSFORMER REMOVAL REMOVAL OF OVEN FROM WALL Two persons recommended to remove the ovenOUTER CASE REMOVAL HOOD FAN MOTOR REMOVALMAGNETRON REMOVAL HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVALHOOD FAN THERMAL CUT-OUT REMOVAL THERMAL CUT-OUT CAVITY REMOVALTEMPERATURE FUSE MAGNETRON REMOVAL COOLING FAN MOTOR REMOVALinstalling because the bracket may be disfigured installationPOSITIVE LOCK CONNECTOR NO-CASE TYPE REMOVAL CONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVALTURNTABLE MOTOR AND FOOD LAMP SOCKETS REMOVAL OVEN LAMP AND LAMP SOCKET REMOVALKey unit Key fixing plate DOOR REPLACEMENT After adjustment, check the followingFigure C-1. Latch Switch Adjustments DOOR ASSEMBLY REMOVALDOOR DISASSEMBLY DOOR FRAME ASSEMBLYFigure C-3. Door Disassembly CHOKE COVERFigure S-1. Pictorial Diagram CONTROL UNITHIGH VOLTAGE COMPONENTS 1506Figure S-2. Power Unit Circuit VRS1Circuit Unit3.LSI FigureSFigure S-4. Printed Wiring Board CN-CCN-E CN-APARTS LIST Note The parts marked “∆ ” may cause undue microwave exposureThe parts marked “*” are used in voltage more than ELECTRIC PARTSOVEN PARTS DOOR PARTSMISCELLANEOUS HOW TO ORDER REPLACEMENT PARTS PACKING AND ACCESSORIESSCREWS,NUTS AND WASHERS REF. NOOVEN AND CABINET PARTS CONTROL PANEL PARTS DOOR PARTSMISCELLANEOUS COPYRIGHT 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED R-1500 R-1501 R-1505 R-1506