Sharp R-301FK Manual de Serviço

39R-301FKR-301FWIn the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified should

8R-301FKR-301FWDESCRIPTION AND FUNCTION OF COMPONENTSDOOR OPEN MECHANISMThe door is opened by pushing the open button on thecontrol panel, refer to th

9R-301FKR-301FWTROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.When

10R-301FKR-301FWA MAGNETRON ASSEMBLY TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Dischar

11R-301FKR-301FWB POWER TRANSFORMER TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Discharg

12R-301FKR-301FWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block

13R-301FKR-301FWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block

14R-301FKR-301FWH BLOWN MONITOR FUSE TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2

15R-301FKR-301FWIf the Key unit is defective.1) Disconnect the power supply cord, and then remove outer case.2) Open the door and block it open.3) Dis

16R-301FKR-301FWWARNING : The oven should be fully assembled before following procedure.(1) Place one cup of water in the center of the turntable tray

17R-301FKR-301FWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTTo protect the electronic circuits, this model is provided with a fine foil pattern added

40R-301FKR-301FWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or allo

18R-301FKR-301FWTOUCH CONTROL PANEL ASSEMBLYOUTLINE OF TOUCH CONTROL PANELThe touch control section consists of the following units.(1) Key Unit(2) Co

19R-301FKR-301FWDESCRIPTION OF LSILSIThe I/O signal of the LSI is detailed in the following table.1 P50 INSignal coming from touch key.When either G9

20R-301FKR-301FWPin No. Signal I/O Description40 SEG14 OUT Terminal not used.41 P70 OUTOven lamp, fan motor and turntable motor driving signalTo turn

21R-301FKR-301FW60 P24 OUT Key strobe signal.Signal applied to touch-key section. A pulse signal is input to P50, P51, P52 and P53terminal while one o

22R-301FKR-301FW1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling these part

23R-301FKR-301FWTo remove the outer case, proceed as follows.1. Disconnect the power supply cord.2. Open the oven door and block it open.3. Remove the

24R-301FKR-301FW1. Disconnect the power supply cord, and then removeouter case.2. Open the door and block it open.3. Discharge high voltage capacitor.

25R-301FKR-301FWCONTROL PANEL ASSEMBLY REMOVALPOSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVALFigure C-1. Positive lock® connector1. Disconnect the p

26R-301FKR-301FWCOOLING FAN MOTOR REMOVALREMOVAL1. Disconnect the power supply cord and then removeouter case.2. Open the door and block it open.3. Di

27R-301FKR-301FWDOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL1.Disconnect the power supply cord and remove outer case.2. O

1R-301FKR-301FWWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowin

28R-301FKR-301FWREMOVAL1. Disconnect the power supply cord.2. Open the door slightly.3. Insert a putty knife (thickness of about 0.5mm) into thegap be

29R-301FKR-301FWSealer filmBacking filmAdhesive tapeFigure C-5. Door ReplacementSEALER FILMInstallation1. Put the adhesive tape on the backing film of

30R-301FKR-301FW645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORH.V.RECTIFIERPOWER SUPPLY CORD 120V 60HzHIGH VOLTAGE COM

31R-301FKR-301FWFigure S-2. Control Unit Circuit645123645123ABCDEFGHABCDEFGHG 2G 1MINUTEPLUSPOWERLEVELSTARTDEFROSTCOOKREHEAT POPCORNTIMERCLOCK9365280G

32R-301FKR-301FWFigure S-3. Printed Wiring Board of Power Unit645123645123ABCDEFGHABCDEFGHDIPCHIPSIDEQPWBFA717DRZZD40C3C2C212ZD1VRS1RY2 RY1T1SPD4D3D1D

33R-301FKR-301FW****∆*∆**∆∆PARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than

34R-301FKR-301FWHOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MODEL NUMB

35R-301FKR-301FW645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS7-67-87-67-86-72-14-134-174-144-21-127-17-51-74-114-111-84-91-61-17-12-37-67-67-61-9

36R-301FKR-301FW645123645123ABCDEFGHABCDEFGH3-23-1-13-13-73-53-83-63-43-33-1-2Before attaching Control unit to Control panel, foil side of Control uni

37R-301FKR-301FWPACKING AND ACCESSORIES645123645123ABCDEFGHABCDEFGHDOOR PROTECTION SHEETSPADPA204WRE0TOP PAD ASSEMBLYFPADBA471WRKZPLASTIC BAGSSAKHA034

2R-301FKR-301FWMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiati

38R-301FKR-301FW2002 SHARP CORP. (2S1.700E) Printed in U.S.ACOPYRIGHT © 2002 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may b

3R-301FKR-301FWSHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALMICROWAVE OVENR-301FK/ R-301FWFOREWORDThis Manual h

4R-301FKR-301FWITEM DESCRIPTIONPower Requirements 120 Volts / 13 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1000 watts (IEC TEST PROCEDU

5R-301FKR-301FWcontact a qualified electrician and have it replaced with a properlygrounded three-pronged wall receptacle or have a grounding adapterp

6R-301FKR-301FWOPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITIONClosi

7R-301FKR-301FWFigure O-1. Oven Schematic-Off ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED2. CLOCK APPEARS ON DISPLAYSCHEMATICNOTE: CONDITI