Sharp CP9580 Service Manual

R-930AKR-930AWIn the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified should b

8R-930AKR-930AWThe sensor “senses” the vapor and its resistance increasesgradually. When the resistance reaches the value set ac-cording to the menu,

9R-930AKR-930AWFigure O-2. Oven Schematic-Microwave Cooking ConditionIMPORTANT:During sensor cooking operation, the fire sensing op-eration sequence w

10R-930AKR-930AWSCHEMATIC1. DOOR CLOSED.2. CONVECTION PAD TOUCHED.3. DESIRED TEMP. TOUCHED.4. COOKING TIME PROGRAMMED.5. “START” PAD TOUCHED.SCHEMATIC

11R-930AKR-930AWOUTER CASE SWITCHESThe two outer case switches are mounted near the powersupply cord at the oven cavity rear plate. When the outercase

12R-930AKR-930AWTROUBLESHOOTING GUIDEWhen troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the chec

13R-930AKR-930AWA MAGNETRONB POWER TRANSFORMERC H.V. RECTIFIER ASSEMBLYD HIGH VOLTAGE CAPACITORE SECONDARY INTERLOCK SWITCHF PRIMARY INTERLOCK SYSTEMG

14R-930AKR-930AWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTHIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULDBE OBSERVED.DISC

15R-930AKR-930AWIf the capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads andcheck for short or open betwee

16R-930AKR-930AWJ THERMAL CUT-OUT TESTA continuity check across the thermal cut-out terminals should indicate a closed circuit unless thetemperature o

17R-930AKR-930AWIf the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable ismaking good contact, verify t

R-930AKR-930AWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or allow

18R-930AKR-930AWT COMPU DEFROST TEST(1) Place one cup of water in the center of the turntable tray in the oven cavity.(2) Close the door, touch the &q

19R-930AKR-930AWV AH SENSOR TESTChecking the initial sensor cooking condition(1) The oven should be plugged in at least two minutes before sensor cook

20R-930AKR-930AWPlungerNCNOCOMCOMNONCR3 R4R1R2123F-1F-2F-3To connector (F)on Control Unit.CONNECTORTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTNOTE: E

21R-930AKR-930AWThe touch control section consists of the following unitsas shown in the touch control panel circuit.(1) Key Unit(2) Control UnitThe p

22R-930AKR-930AW1 VCC IN Connected to GND.2 VEE IN Anode (segment) of Fluorescent Display light-up voltage: -30V.Vp voltage of power source circuit in

23R-930AKR-930AW17 P51 OUT Magnetron high-voltage circuit drivingsignal.To turn on and off the cook relay(RY2). InP-HI operation, the signals holds &q

24R-930AKR-930AW34 P26 IN Signal similar to P27.When any one of G-2 line key on key matrix is touched, a corresponding signal will beinput into P26.35

25R-930AKR-930AWPin No. Signal I/O Description48 P10 OUT Segment data signal.Signal similar to P23.Key strobe signal.Signal applied to touch-key secti

26R-930AKR-930AWSERVICINGapprox. 1M ohmTransistor2SB910MECBECBTransistorDTA123ESKRA101MKRA223MKRC243M1. Precautions for Handling Electronic Components

27R-930AKR-930AWCOMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURECAUTION: DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE.DISCHARGE HIGH VOL

1R-930AKR-930AWBEFORE SERVICINGBefore servicing an operative unit, perform a microwave emission check as per the MicrowaveMeasurement Procedure outlin

28R-930AKR-930AWPOSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVALPush the lever of positive lock® connector. Pull down on thepositive lock® connector.C

29R-930AKR-930AWFAN MOTOR REMOVAL1. Disconnect the oven from power supply.Remove the turntable tray, and the turntable support outof the oven cavity.2

30R-930AKR-930AWCONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVALTo remove the control panel, procedure as follows:1. Disconnect oven from power supply

31R-930AKR-930AWDOOR REPLACEMENT AND ADJUSTMENTREMOVAL1. Disconnect oven from power supply and remove theouter case.Remove turntable tray and turntabl

32R-930AKR-930AWNote: The door on a microwave oven is designed to act asan electronic seal preventing the leakage ofmicrowave energy from oven cavity

33R-930AKR-930AW645123645123ABCDEFGHABCDEFGHTURNTABLE MOTORGRYBRNORGGRNREDBLKDAMPER MOTORCOOLINGFAN MOTOROUTER CASESWITCH(Oven side)OUTER CASES

34R-930AKR-930AW645123645123ABCDEFGHABCDEFGHFigure S-2. Control Panel Circuit+–+–+–+–+–+–A9A7A1A3A5E1 E2 E5 E6 E3 E4 F1 F2 F3G 1G 2G 3G 4G 5 G 6 G 7 G

35R-930AKR-930AW645123645123ABCDEFGHABCDEFGHFigure S-3. Printed Wiring BoardRR0 121311111165432111357 945 783314581212123233 64346913CONVHEATERCOMRED

R-930AKR-930AW36PARTS LIST◊Refer to "MPORTANT" described at end of parts list.REF. NO. PART NO. DESCRIPTION Q'TY CODEELECTRICAL PARTS1-

37R-930AKR-930AWREF. NO. PART NO. DESCRIPTION Q'TY CODEIC1 RH-IZA797DRE0 LSI 1 AXIC2 RH-IZA495DRE0 IC 1 ALQ1 VS2SB910MR/-4 Transistor (2SB910M)

2R-930AKR-930AWMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiati

R-930AKR-930AW38REF. NO. PART NO. DESCRIPTION Q'TY CODE4-27 PREFHA053WRW0 Thermal protection plate (Right) 1 AP4-28 PSKR-A153WRW0 Air guide (Bott

39R-930AKR-930AW7-24 XOTSD40P12000 Screw; 4mm x 12mm 22 AA7-25 XFPSD30P08000 Screw; 3mm x 8mm 2 AA7-26 XNESD40-32000 Nut; 4mm x 3.2mm 2 AA7-27 XNEUW4

R-930AKR-930AW40645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS1-101-117-242-17-242-67-127-16A7-47-241-197-244-327-194-334-414-157-261-147-10TO OVE

41R-930AKR-930AW645123645123ABCDEFGHABCDEFGHDOOR PARTSCONTROL PANEL PARTSMISCELLANEOUS5-35-105-15Actual wire harness may be different than illustratio

R-930AKR-930AW42'97 SHARP CORP. (6K2.770E) Printed in U.S.A

3R-930AKR-930AWSERVICE MANUALCONVECTIONMICROWAVE OVENR-930AK / R-930AWFOREWORDThis Manual has been prepared to provide Sharp ElectronicsCorp. Service

4R-930AKR-930AWSPECIFICATIONITEM DESCRIPTIONPower Requirements 120 Volts13.0 Amperes (Microwave) / 13.0 Amperes (Convection)60 Hertz / Single phase,

5R-930AKR-930AWElectrical RequirementsThe electrical requirements are a 115 -120 volt 60 Hz, AC only,15 or 20 amp. fused electrical supply. It is reco

6R-930AKR-930AWOPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITIONClosi

7R-930AKR-930AWCONVECTION COOKING CONDITIONPREHEATING CONDITIONProgram desired convection temperature by touching theCONVECTION pad and the Temperatur