ZMM Haskovo Joybook R48 Series Service Manual

1PMOR3021SPMOR3021BPMOR3021RS94M245P3021SPMOR3021SPMOR3021BPMOR3021ROVER THE RANGEMICROWAVE OVENMODELS SERVICE MANUALThis document

8PMOR3021SPMOR3021BPMOR3021RVENTILATION METHODS HOT AIR EXHAUST1. VERTICAL VENTINGFor this venting method, hot air rising from theconventional range b

9PMOR3021SPMOR3021BPMOR3021RSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED2. COOKING TIME PROGRAMMED3. VARIABLE COOKING CONTROL "HIGH"4. &qu

10PMOR3021SPMOR3021BPMOR3021RDESCRIPTION AND FUNCTION OF COMPONENTSmonitor switch contacts.CAUTION: BEFORE REPLACING A BLOWN MONITORFUSE TEST THE STOP

11PMOR3021SPMOR3021BPMOR3021RTROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is

12PMOR3021SPMOR3021BPMOR3021RCK = Check / RE = ReplacePOSSIBLE CASE AND DEFECTIVE PARTSPROBLEMTEST PROCEDURECONDITIONOFFCONDITIONIDLECONDITIONMICROWAV

13PMOR3021SPMOR3021BPMOR3021RB INVERTER UNIT TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove oute

14PMOR3021SPMOR3021BPMOR3021R1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. To discharge high v

15PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST4. Isolate the switch and connect the ohmmeter to the common (COM.) and norma

16PMOR3021SPMOR3021BPMOR3021R6-PIN CONNECTOROF HOOD FAN MOTORTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then

17PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Key Unit.NOTE ;1) Check key unit ribbon connection before replacement.2) R

2PMOR3021SPMOR3021BPMOR3021RPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLE EXPOSURETO EXCESSIVE MICROWAVE ENERGY(a) Do not op

18PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTschematic and place a jumper wire between the pins that correspond to the STO

19PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST(6) Touch the “ START ” button.(7) The oven is in Easy defrost cooking condit

20PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST9) Disconnect the power supply cord.10) Open the door and block it open.11) T

21PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST(9) Reconnect the oven to the power supply and check the sensor cook operatio

22PMOR3021SPMOR3021BPMOR3021RTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTP NOISE FILTER TEST1. Disconnect the power supply cord, and then remove outer

23PMOR3021SPMOR3021BPMOR3021RTOUCH CONTROL PANEL ASSEMBLYOUTLINE OF TOUCH CONTROL PANEL3) Synchronizing Signal CircuitThe power source synchronizing s

24PMOR3021SPMOR3021BPMOR3021RDESCRIPTION OF LSILSIThe I/O signal of the LSI is detailed in the following table.Pin No. Signal I/O Description1-2 VL2-V

25PMOR3021SPMOR3021BPMOR3021R25 P41 OUT Terminal not used.26 P40 IN Connected to GND through the pull-down resistor.27 RESET IN Auto clear terminal.Si

26PMOR3021SPMOR3021BPMOR3021RPin No. Signal I/O Description48-72SEG24-SEG0OUT Segment data signal.Connected to LCD.The relation between signals are as

27PMOR3021SPMOR3021BPMOR3021RHUMIDITY SENSOR CIRCUITAs the sensor cooking proceeds, the food is heated togenerate moisture by which the resistance bal

1PMOR3021SPMOR3021BPMOR3021RWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact

28PMOR3021SPMOR3021BPMOR3021R1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handli

29PMOR3021SPMOR3021BPMOR3021RSn-Ag-CuPRECAUTIONS FOR USING LEAD-FREE SOLDER1. Employing lead-free solderThe "Control unit PWB and Inverter unit P

30PMOR3021SPMOR3021BPMOR3021RMicrowave ovens contain circuitry capable of producing very high voltage and current, contact with following parts mayres

31PMOR3021SPMOR3021BPMOR3021R4. Remove the three (3) screws holding the hood louver tothe oven cavity front face plate.5. Pull the hood louver from th

32PMOR3021SPMOR3021BPMOR3021R1. Disconnect the power supply cord and remove the ovenfrom wall and remove outer case. (Refer to procedure of"Remov

33PMOR3021SPMOR3021BPMOR3021RRear ViewSide Viewmetal pieces may be produced.* Do not touch the pliers to the coil of the fan motorbecause the coil may

34PMOR3021SPMOR3021BPMOR3021R1. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high voltage capacitor, wait f

35PMOR3021SPMOR3021BPMOR3021R1. Disconnect the power supply cord, remove the ovenfrom wall, and remove outer case. (Refer to procedure of"REMOVAL

36PMOR3021SPMOR3021BPMOR3021R1. Disconnect the power supply cord and remove the ovenfrom wall and remove outer case. (Refer to procedure of"Remov

37PMOR3021SPMOR3021BPMOR3021RDOOR ASSEMBLY REMOVAL1. Disconnect the power supply cord.2. Open the door and block it open.3. To discharge the high volt

2PMOR3021SPMOR3021BPMOR3021RMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of micr

38PMOR3021SPMOR3021BPMOR3021R9. Pry the choke cover by inserting a putty knife in ordershown in Figure C-3.10.Now choke cover is free from door panel

39PMOR3021SPMOR3021BPMOR3021R645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGE COMPONENTSCONTROL UNITPower Supplycord 120V 60Hz123

40PMOR3021SPMOR3021BPMOR3021R645123645123ABCDEFGHABCDEFGHFigure S-2b. Power Unit Circuit

41PMOR3021SPMOR3021BPMOR3021R645123645123ABCDEFGHABCDEFGHFigure S-3b. LSI Unit Circuit

42PMOR3021SPMOR3021BPMOR3021RFigure S-4. Printed Wiring Board645123645123ABCDEFGHABCDEFGH

3PMOR3021SPMOR3021BPMOR3021RSERVICE MANUALMICROWAVE OVENSPMOR3021S/PMOR3021B/PMOR3021RFOREWORDThis Manual has been prepared to provide Dacor Service P

4PMOR3021SPMOR3021BPMOR3021RITEM DESCRIPTIONPower Requirements 120 Volts / 12 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1200 watts (IEC

5PMOR3021SPMOR3021BPMOR3021R12437118810109685GENERAL INFORMATIONGROUNDING INSTRUCTIONSThis oven is equipped with a three prong grounding plug. It must

6PMOR3021SPMOR3021BPMOR3021RNOTE:Some one-touch cooking features such as "MINUTE PLUS" are disabled after three minutes when the ovenis not

7PMOR3021SPMOR3021BPMOR3021ROPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF C