Manuals / Sharp / Kitchen Appliance / Microwave Oven

Sharp R-1501, R-1500, R-1505, R-1506 Figure S-4. Printed Wiring Board, Cn-C, Cn-E, Cn-A, Cn-B

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

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R-1500

R-1501

R-1505

R-1506

B
		D21
	R
	0	0
	9 4V MR
	BFB	FB035RY1
C	A 7 2
	M
	MCS
D			VRS1
D
	J1
E	QKITPB035MRE0	RY2
E
F		D22
		LOT	RY3
G		NO.
G

	3			4			5	6
					CN-C
		14					1
D40		DIP					R1
D20		DIP

2				R2
							Q1
1		2				E	B
1		2					ZD1
						SP1	ZD1
CN-E			R30			SP1	R3
CN-E								C2



		C21
		Q21	T1			C3
			T1
E			B
E			B					1
								1
								C1
								D1
1								D3
1								D4
								D4
						5		D2
								D2
			P
			S
3						8
						8
		RY5		D25				C100
		RY5		D25
D23	D24					D26
D23	D24
RY4					RY6
9				1	RY6	5		1
						5		1
							CN-A
						CN-B

Figure S-4. Printed Wiring Board

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Sharp R-1501, R-1500, R-1505, R-1506 service manual Figure S-4. Printed Wiring Board, Cn-C, Cn-E, Cn-A, Cn-B

Contents

OVER THE RANGE TABLE OF CONTENTSSHARP CORPORATION MICROWAVE OVENBEFORE SERVICING Dont Touch Danger High Voltage WARNING TO SERVICE PERSONNELAfter repairing Before ServicingA. Requirements MICROWAVE MEASUREMENT PROCEDUREB. Preparation for testing C. Leakage testSHARP PLAZA, MAHWAH NEW JERSEY SERVICE MANUALDANGER If provided, Vent Hood, Fan assembly, Cooling Fan MotorDESCRIPTION PRODUCT SPECIFICATIONGENERAL INFORMATION GROUNDING INSTRUCTIONSOVEN DIAGRAM COOK CENTER CONTROL PANEL1 2 4 DEFROST CENTERDESCRIPTION OF OPERATING SEQUENCE POWER LEVEL P-0 TO P-90 COOKINGOPERATION OFF CONDITIONHood Fan Motor To Duct Hood Intake Duct R Grease Filter VENTILATION METHODS HOT AIR EXHAUSTTo Duct CharcoalNOTE indicates components with potential above Figure O-1. Oven Schematic-Off ConditionFigure O-2. Oven Schematic-Cooking Condition R-1500 R-1501 R-1505 R-1506MONITOR SWITCH TEMPERATURE FUSE MGDOOR SENSING AND PRIMARY INTERLOCK SWITCHES DESCRIPTION AND FUNCTION OF COMPONENTSHOOD LAMP TROUBLESHOOTING GUIDEHOOD FAN MOTOR When the testing is completedCK = Check / RE = Replace POSSIBLE CASE AND DEFECTIVE PARTSA MAGNETRON ASSEMBLY TEST TEST PROCEDURESPROCEDURE MICROWAVE OUTPUT POWERMAGNETRON TEMPERATURE FUSE TEST TEST PROCEDURESPROCEDURE LETTERF PRIMARY INTERLOCK SWITCH TEST TEST PROCEDURESPROCEDURE G SECONDARY INTERLOCK SYSTEM TEST DOOR SENSING SWITCHCOMPONENT TEST TEST PROCEDURESPROCEDURE LETTERL TOUCH CONTROL PANEL ASSEMBLY TEST TEST PROCEDURESPROCEDURE Before testingLETTER TEST PROCEDURESPROCEDURE COMPONENT TESTFOIL PATTERN ON THE PRINTED WIRING BOARD TEST TEST PROCEDURESPROCEDURE LETTERQKITPB035 TEST PROCEDURESPROCEDURE LETTER2 Power Source Circuit TOUCH CONTROL PANEL ASSEMBLYDESCRIPTION OF LSI 3 Synchronizing Signal CircuitSignal synchronized with commercial power source frequency SignalOUT Oven lamp, fan motor and turntable motor driving signal Internal clock oscillation frequency input settingKey strobe signal SignalKey strobe signal Key strobe signal5. Other Precautions SERVICING1 Servicing the touch control panel with power supply of the oven 2. Shapes of Electronic ComponentsWITHOUT REMOVING THE OVEN FROM THE WALL COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURETHE FOLLOWING ADJUSTMENTS OR COMPONENT REPLACEMENT CAN BE PERFORMED HOOD EXHAUST LOUVER REMOVALOUTER CASE REMOVAL POWER TRANSFORMER REMOVALREMOVAL OF OVEN FROM WALL Two persons recommended to remove the oven HOOD FAN MOTOR REMOVALHOOD FAN THERMAL CUT-OUT REMOVAL MAGNETRON REMOVALHIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL THERMAL CUT-OUT CAVITY REMOVALinstalling because the bracket may be disfigured TEMPERATURE FUSE MAGNETRON REMOVALCOOLING FAN MOTOR REMOVAL installationTURNTABLE MOTOR AND FOOD LAMP SOCKETS REMOVAL POSITIVE LOCK CONNECTOR NO-CASE TYPE REMOVALCONTROL PANEL ASSEMBLY, CONTROL UNIT AND KEY UNIT REMOVAL OVEN LAMP AND LAMP SOCKET REMOVALKey unit Key fixing plate Figure C-1. Latch Switch Adjustments DOOR REPLACEMENTAfter adjustment, check the following DOOR ASSEMBLY REMOVALFigure C-3. Door Disassembly DOOR DISASSEMBLYDOOR FRAME ASSEMBLY CHOKE COVERHIGH VOLTAGE COMPONENTS Figure S-1. Pictorial DiagramCONTROL UNIT 1506Figure S-2. Power Unit Circuit VRS13.LSI CircuitUnit FigureSCN-E Figure S-4. Printed Wiring BoardCN-C CN-AThe parts marked “*” are used in voltage more than PARTS LISTNote The parts marked “∆ ” may cause undue microwave exposure ELECTRIC PARTSMISCELLANEOUS OVEN PARTSDOOR PARTS SCREWS,NUTS AND WASHERS HOW TO ORDER REPLACEMENT PARTSPACKING AND ACCESSORIES REF. NOOVEN AND CABINET PARTS MISCELLANEOUS CONTROL PANEL PARTSDOOR PARTS COPYRIGHT 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED R-1500 R-1501 R-1505 R-1506

CN-C

CN-E

CN-A

CN-B

Figure S-4. Printed Wiring Board