Sharp R-320HQ Operation Manual de Serviço

39R-320HKR-320HQR-320HWIn the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified

8R-320HKR-320HQR-320HWSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED2. COOKING TIME PROGRAMMED3. VARIABLE COOKING CONTROL "HIGH" (100%)4. &q

9R-320HKR-320HQR-320HWDESCRIPTION AND FUNCTION OF COMPONENTSDOOR OPEN MECHANISMThe door is opened by pushing the open button on thecontrol panel, refe

10R-320HKR-320HQR-320HWTROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is connec

11R-320HKR-320HQR-320HWHome fuse or circuit breaker blowswhen power cord is plugged into wallreceptacleC/T fuse blows when power cord isplugged into w

12R-320HKR-320HQR-320HWA MAGNETRON ASSEMBLY TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer

13R-320HKR-320HQR-320HWC HIGH VOLTAGE RECTIFIER TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open

14R-320HKR-320HQR-320HW1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. Discharge high voltage ca

15R-320HKR-320HQR-320HWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTCAUTION: BEFORE REPLACING A BLOWN C/T FUSE, TEST THE PRIMARY INTERLOCK RELAY,SECOND

16R-320HKR-320HQR-320HWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST3. If the Key unit or the Control unit is defective.1) Disconnect the power supply

17R-320HKR-320HQR-320HWRY1 and RY2 Relay TestThese relays are operated by D.C. voltageCheck voltage at the relay coil with a D.C. voltmeter during the

40R-320HKR-320HQR-320HWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate

18R-320HKR-320HQR-320HWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1) Disconnect the power supply cord, and then remove outer case.2) Open the door an

19R-320HKR-320HQR-320HWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTTESTING METHOD FOR AH SENSOR AND/OR CONTROL UNITTo determine if the sensor is defec

20R-320HKR-320HQR-320HWDESCRIPTION OF LSILSIThe I/O signal of the LSI is detailed in the following table.TOUCH CONTROL PANEL ASSEMBLYOUTLINE OF TOUCH

21R-320HKR-320HQR-320HWPin No. Signal I/O Description9 AN1 IN AH sensor input.This input is an analog input terminal from the AH sensor circuit, and c

22R-320HKR-320HQR-320HW33 P27 OUT Key strobe signal.Signal applied to touch-key section. A pulse signal is input to P70, P71, P41, P45, P47 andAN3 ter

23R-320HKR-320HQR-320HWPin No. Signal I/O Description79 COM0 OUT Common data signal.Connected to LCD signal COM1.80 VL3 INPower source voltage input t

24R-320HKR-320HQR-320HW1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling the

25R-320HKR-320HQR-320HWTo remove the outer case, proceed as follows.1. Disconnect the power supply cord.2. Open the oven door and block it open.3. Rem

26R-320HKR-320HQR-320HWRemoval1. Disconnect the power supply cord and then removeouter case.2. Open the door and block it open.3. Discharge high volta

27R-320HKR-320HQR-320HW1. Disconnect the power supply cord, and then removeouter case.2. Open the door and block it open.3. Discharge high voltage cap

1R-320HKR-320HQR-320HWWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withf

28R-320HKR-320HQR-320HWSide ViewRear View1. Disconnect the power supply cord.2. Remove turntable and turntable support from ovencavity.3. Lay the oven

29R-320HKR-320HQR-320HWhook, pushing and pulling upper portion of door towardthe oven face. Then check lower portion of the latchhook, pushing and pul

30R-320HKR-320HQR-320HWSealer filmBacking filmAdhesive tape14.Now, latch head and latch spring are free.15.Remove door screen from door frame.16.Now,

31R-320HKR-320HQR-320HW645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORH.V. RECTIFIERPOWER SUPPLY CORD 120V 60HzHIGH VOL

32R-320HKR-320HQR-320HWFigure S-2. Control Unit Circuit645123645123ABCDEFGHABCDEFGHLSI UNITOVEN LAMPTURNTABLE MOTORFAN MOTORPOWERTRANSFOMERIF NOT SPEC

33R-320HKR-320HQR-320HW645123645123ABCDEFGHABCDEFGHFigure S-3. Printed Wiring Board of Power UnitRY1RY2E C BE C BE C BVRS1L1D7D3PSD4C2D1C1D2R8R7

34R-320HKR-320HQR-320HW∆∆∆*******∆*∆*∆∆PARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts marked “*” are used in voltag

35R-320HKR-320HQR-320HWHOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MOD

36R-320HKR-320HQR-320HW645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTSAA7-107-14-14-54-44-136-57-34-37-84-92-11-71-127-67-31-101-94-107-107-107-84-

37R-320HKR-320HQR-320HW645123645123ABCDEFGHABCDEFGHDOOR PARTSCONTROL PANEL PARTSMISCELLANEOUS3-23-13-63-53-43-3Actual wire harness may be different f

2R-320HKR-320HQR-320HWMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave

38R-320HKR-320HQR-320HWPACKING AND ACCESSORIESCOPYRIGHT © 2003 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced,s

3R-320HKR-320HQR-320HWSHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALMICROWAVE OVENR-320HK/ R-320HQ/ R-320HWFOREW

4R-320HKR-320HQR-320HWITEM DESCRIPTIONPower Requirements 120 Volts / 14.2 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1200 watts (IEC TES

5R-320HKR-320HQR-320HWcontact a qualified electrician and have it replaced with a properlygrounded three-pronged wall receptacle or have a grounding a

6R-320HKR-320HQR-320HWOPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITI

7R-320HKR-320HQR-320HWsupplementary cooking is started. The time of supplemen-tary cooking is determined by experiment with each foodcategory and inpu