Sharp R-320CK Manual de Serviço

R-320CD/CK/CWR-330CK/CWIn the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified

8R-320CD/CK/CWR-330CK/CWSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. COOKING TIME PROGRAMMED.3. VARIABLE COOKING CONTROL "HIGH".4. &quo

9R-320CD/CK/CWR-330CK/CWDESCRIPTION AND FUNCTION OF COMPONENTSDOOR OPEN MECHANISMThe door is opened by pushing the open button on thecontrol panel, re

10R-320CD/CK/CWR-330CK/CWTROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is conn

11R-320CD/CK/CWR-330CK/CWHome fuse or circuit breaker blowswhen power cord is plugged into wallreceptacleMonitor fuse blows when power cordis plugged

12R-320CD/CK/CWR-330CK/CWB POWER TRANSFORMER TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3.

13R-320CD/CK/CWR-330CK/CWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door

14R-320CD/CK/CWR-330CK/CWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door

15R-320CD/CK/CWR-330CK/CWH BLOWN MONITOR FUSE TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove out

16R-320CD/CK/CWR-330CK/CW6) Re-install the outer case (cabinet).7) Reconnect the power supply cord after the outer case is installed.8) Run the oven a

17R-320CD/CK/CWR-330CK/CWWARNING : The oven should be fully assembled before following procedure.(1) Place one cup of water in the center of the turnt

R-320CD/CK/CWR-330CK/CWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate

18R-320CD/CK/CWR-330CK/CWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTTo protect the electronic circuits, this model is provided with a fine foil patte

19R-320CD/CK/CWR-330CK/CWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTN AH SENSOR TESTChecking the initial sensor cooking conditionWARNING : The oven s

20R-320CD/CK/CWR-330CK/CW9-1. Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.9-2. Place the container on

21R-320CD/CK/CWR-330CK/CWTOUCH CONTROL PANEL ASSEMBLYOUTLINE OF TOUCH CONTROL PANELThe touch control section consists of the following units.(1) Key U

22R-320CD/CK/CWR-330CK/CW1 AN10 IN Signal coming from touch key.When either G10 line on key matrix is touched, a corresponding signal out of P10 - P17

23R-320CD/CK/CWR-330CK/CW23 P24 OUT Oven lamp, fan motor and turntable motor driving signalTo turn on and off shut off relay (RY1). Thesquare waveform

24R-320CD/CK/CWR-330CK/CW55 SEG10 OUT Terminal not used.56-82SEG11-SEG37OUT Segment data signal.Signal similar to SEG1.83-85SEG38-SEG40OUT Terminal no

25R-320CD/CK/CWR-330CK/CWPin No. Signal I/O DescriptionP42 terminal while one of G6 line keys on key matrix is touched.7 P13 OUT Key strobe signal.Sig

26R-320CD/CK/CWR-330CK/CW27-29 P30-P32 OUT Terminal not used.30-34 P33-P37 OUT Used for initial balancing of the bridge circuit (absolute humidity sen

27R-320CD/CK/CWR-330CK/CWABSOLUTE HUMIDITY SENSOR CIRCUIT(1) Structure of Absolute Humidity SensorThe absolute humidity sensor includes two thermistor

1R-320CD/CK/CWR-330CK/CWWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact wit

28R-320CD/CK/CWR-330CK/CW1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling t

29R-320CD/CK/CWR-330CK/CWTo remove the outer case, proceed as follows.1. Disconnect the power supply cord.2. Open the oven door and block it open.3. R

30R-320CD/CK/CWR-330CK/CWPOWER TRANSFORMER REMOVALRe-instal1. Rest transformer on the bottom plate with its primaryterminals toward the oven face plat

31R-320CD/CK/CWR-330CK/CWCONTROL PANEL ASSEMBLY REMOVALOVEN LAMP AND LAMP SOCKET REMOVAL1.Disconnect the power supply cord and then remove outercase.2

32R-320CD/CK/CWR-330CK/CWCOOLING FAN MOTOR REMOVALREMOVAL1. Disconnect the power supply cord and then removeouter case.2. Open the door and block it o

33R-320CD/CK/CWR-330CK/CWDOOR REPLACEMENTDOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT1. Disconnect the power supply co

34R-320CD/CK/CWR-330CK/CW4. Pry the choke cover by inserting a putty knife as shownFigure C-4.5. Release choke cover from door panel.6. Now choke cov

35R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORHIGH VOLTAGEWIRE BH.V.RECTIFIERPOWER SUPPLY

36R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHFigure S-2. Power Unit Circuit+–+–+–A 1CN-AR4 27D5T1abcdVRS1(J1)D7D81SS270A1SS270A10G471KC1 0.1µ/

37R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHFigure S-3. CPU Unit Circuit For R-320CD/CK/CW+–C-2C-3C-10C-9C-1C-5C-6C-7C-12C-8F-1G 9G10G11G12G

2R-320CD/CK/CWR-330CK/CWMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwav

38R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHFigure S-4. CPU Unit Circuit For R-330CK/CW+–C-2C-3C-10C-9C-1C-5C-6C-7C-12C-8F-1G 9G10G11G12G13G

39R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHFigure S-5. Indicator Circuit For R-330CK/CWVCGNDIC1 P91OSC4VC1VC2VC3VC4VC5CFCECDCCCBCACOM8COM9C

40R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHFigure S-6. Printed Wiring Board of Power UnitWH - 1SH - BSH - A1C3C4C5R3C2FC110D4D2D1D3D9(D10)RY

41R-320CD/CK/CWR-330CK/CWPARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than 25

42R-320CD/CK/CWR-330CK/CW∆∆∆∆∆∆∆∆∆*REF. NO. PART NO. DESCRIPTION Q'TY CODE3- 3-1 FUNTKA923WRE0 Key unit [R-320CK] 1 AY3- 3-1 FUNTKA924WRE0 Key un

43R-320CD/CK/CWR-330CK/CWDOOR PROTECTION SHEETSPADPA204WRE0TOP PAD ASSEMBLYFPADBA395WRK0PLASTIC BAGSSAKHA034WRE0Not replaceable items.PACKING CASE

44R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS7-57-87-57-81-107-21-152-16-74-104-131-114-144-21-127-17-51-71-81-67-12-32-

45R-320CD/CK/CWR-330CK/CW645123645123ABCDEFGHABCDEFGHMISCELLANEOUSCONTROL PANEL PARTSDOOR PARTSActual wire harness may be different from illustration

46R-320CD/CK/CWR-330CK/CW'99 SHARP CORP. (2S2.530E) Printed in U.S.ACOPYRIGHT © 1999 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publ

3R-320CD/CK/CWR-330CK/CWSHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALMICROWAVE OVENR-320CD/ R-320CK/ R-320CW/ R

4R-320CD/CK/CWR-330CK/CWITEM DESCRIPTIONPower Requirements 120 Volts / 13 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1100 watts (IEC-705

5R-320CD/CK/CWR-330CK/CWA short power-supply cord is provided to reduce risks of becomingentangled in or tripping over a longer cord.Where a two-pron

6R-320CD/CK/CWR-330CK/CWOPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDI

7R-320CD/CK/CWR-330CK/CWSENSOR COOKING CONDITIONUsing the SENSOR function, the food is cooked withoutfiguring time, power level or quantity. When t