Sharp R-310FW Manuale di Servizio

39R-310FKR-310FWIn the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified should

8R-310FKR-310FWDESCRIPTION AND FUNCTION OF COMPONENTSDOOR OPEN MECHANISMThe door is opened by pulling the door. Refer to the FigureD-1.Figure D-1. Doo

9R-310FKR-310FWTROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.When

10R-310FKR-310FWA MAGNETRON ASSEMBLY TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Dischar

11R-310FKR-310FWB POWER TRANSFORMER TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Discharg

12R-310FKR-310FWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block

13R-310FKR-310FWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block

14R-310FKR-310FWH BLOWN MONITOR FUSE TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2

15R-310FKR-310FWc) When touching the pads, sometimes a pad produces no signal.If the Key unit is defective.1) Disconnect the power supply cord, and th

16R-310FKR-310FWWARNING : The oven should be fully assembled before following procedure.(1) Place one cup of water in the center of the turntable tray

17R-310FKR-310FWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTTo protect the electronic circuits, this model is provided with a fine foil pattern added

40R-310FKR-310FWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or allo

18R-310FKR-310FW1-2 VL2-VL1 IN Power source voltage input terminal.Standard voltage for LCD.3-6 AN7-AN4 IN Terminal to change cooking input according

19R-310FKR-310FW11 P57 OUT Back light circuit (Light emitting diodes) driving signal.12-13 P56-P55 OUT Terminal not used.14 CNTR0 OUTSignal to sound b

20R-310FKR-310FW34 P26 OUT Key strobe signal.Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45terminal while one o

21R-310FKR-310FW1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling these part

22R-310FKR-310FWTo 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

23R-310FKR-310FWPOWER TRANSFORMER REMOVALReinstallation1. Rest transformer on the bottom plate with its primaryterminals toward the oven face plate.2.

24R-310FKR-310FWCOOLING FAN MOTOR REMOVALCONTROL PANEL ASSEMBLY REMOVALPOSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVALFigure C-2. Positive lock® con

25R-310FKR-310FW5. Remove the magnetron and chassis support from thewaveguide flange, referring to "MAGNETRONREMOVAL".6.Release the snap of

26R-310FKR-310FWDOOR REPLACEMENTFigure C-3. Latch Switch AdjustmentsIf the door sensing switch, secondary interlock switch andmonitor switch do not op

27R-310FKR-310FW3. Door is positioned with its face pressed toward cavityface plate.4. Check for microwave leakage around door with anapproved microwa

1R-310FKR-310FWWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowin

28R-310FKR-310FW645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORH.V.RECTIFIERPOWER SUPPLY CORD 120V 60HzHIGH VOLTAGE COM

29R-310FKR-310FWFigure S-2. Power Unit Circuit645123645123ABCDEFGHABCDEFGH+–A 1C 3C 5C 4C 6C 8C 1C 7C 2A 2NOSH-ACOMCOMGNDD1S1NB10T1ACACGNDINTVRBUZZERM

30R-310FKR-310FWFigure S-3. CPU Unit Circuit645123645123ABCDEFGHABCDEFGH+–+–C-3G 9G 85 4 3 2 1 0 9 8 7 6 G 7 G 6 G 5 G 4 G 3 G 2 G 1G10G11G12G13G14C-5

31R-310FKR-310FWFigure S-4. Printed Wiring Board of Power Unit645123645123ABCDEFGHABCDEFGH1121137429CN - CD1(D2)(D3)SP1OMDURY2XAVHCN - ASH - BSH - ACN

32R-310FKR-310FW****∆*∆**∆∆PARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than

33R-310FKR-310FWHOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MODEL NUMB

34R-310FKR-310FW645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS7-67-87-67-86-72-14-134-174-144-21-127-17-51-74-211-87-64-94-111-61-17-12-37-67-67-6

35R-310FKR-310FW645123645123ABCDEFGHABCDEFGHCONTROL PANEL PARTSDOOR PARTSMISCELLANEOUSActual wire harness may be different from illustration.6-36-53-

36R-310FKR-310FWPACKING AND ACCESSORIES645123645123ABCDEFGHABCDEFGHDOOR PROTECTION SHEETSPADPA204WRE0TOP PAD ASSEMBLYFPADBA458WRKZPLASTIC BAGSSAKHA034

37R-310FKR-310FW

2R-310FKR-310FWMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiati

38R-310FKR-310FW2002 SHARP CORP. (1S1.700E) Printed in U.S.ACOPYRIGHT © 2002 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may b

3R-310FKR-310FWSHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALMICROWAVE OVENR-310FK/ R-310FWFOREWORDThis Manual h

4R-310FKR-310FWITEM DESCRIPTIONPower Requirements 120 Volts / 14.2 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1200 watts (IEC TEST PROCE

5R-310FKR-310FWcontact a qualified electrician and have it replaced with a properlygrounded three-pronged wall receptacle or have a grounding adapterp

6R-310FKR-310FWOPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITIONClosi

7R-310FKR-310FWFigure O-1. Oven Schematic-Off ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED2. CLOCK APPEARS ON DISPLAYSCHEMATICNOTE: CONDITI