Advertisement

Advertisement

Table of Contents
loading

Summary of Contents for Samsung M945CE

  • Page 1: Table Of Contents

    MICROWAVE OVEN M945CE SERVICE Manual MICROWAVE OVEN CONTENTS 1. Precaution 2. Specifications 3. Operating Instructions 4. Disassembly and Reassembly 5. Alignment and Adjustments 6. Troubleshooting 7. Exploded Views and Parts List 8. PCB Diagrams 9. Schematic Diagrams SEAU...
  • Page 2: Precaution

    CENTRAL SERVICE CENTER 16. Always connect a test instrument's ground lead to the instrument chassis ground before connecting the positive lead; always remove 10. Service technicians should remove their the instrument's ground lead last. watches while repairing an MWO. Samsung Electronics...
  • Page 3: Specifications

    (Use a screwdriver.) 3. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components. Fig. 1-1. Discharging the High Voltage Capacitor Samsung Electronics...
  • Page 4: Specifications

    2. Specifications 2-1 Table of Specifications TIMER 99 MINUTES 90 SECONDS POWER LEVEL ON TIME OFF TIME POWER SOURCE 240V 50Hz, AC M945CE POWER CONSUMPTION MICROWAVE : 1,550W 100W 4 sec 26 sec 200W 7 sec 23 sec OUTPUT POWER...
  • Page 5: Operating Instructions

    Timer Setting Button 10 min~ 1 min~ portion~ hours 10 s Stop/Clear Button Standard Boost Button Start~1min+ Stop~Cancel M945CE 3-2 Features & External Views Ventilation Holes Heater Light Door Safety Interlock Holes Control Panel Door Latches Open Door Push Button...
  • Page 6: Disassembly And Reassembly

    VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near these circuits with the oven energized. Screws H. V. Trans DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron. Samsung Electronics...
  • Page 7: Replacement Of Door Assembly

    1. Insertion depth of the thin metal plate should be 0.5mm or less. 4-3-4 Removal of Key Door & Spring Remove pin hinge from Door "E" Door "E" Detach spring from Door "E" and key door. Key Door Spring Samsung Electronics...
  • Page 8: Replacement Of Fuse/Drive Motor

    Base Plate 8. Connect all the leads to the drive motor. Drive Motor Cover 9. Screw the deive motor cover to the base plate with a screw driver. 10. Remount the coupler in the correct position. Samsung Electronics...
  • Page 9 3. When installing new membrane key board, make sure that the surface of escutcheon base is cleaned sufficiently so that any problems Membrane (shorted contacts or uneven surface) can be Panel avoided. Samsung Electronics...
  • Page 10: Alignment And Adjustments

    2. Isolate the magnetron from the circuit by disconnecting its leads. 3. A continuity check across the magnetron filament terminals should indicate one ohm or less. 4. A continuity check between each filament terminal and magnetron case should read open. Cooling Fins Samsung Electronics...
  • Page 11: High Voltage Capacitor

    ¥ Primary switch ¥ Monitor switch (COM-NC) 5. Confirm that the gap between the switch ¥ Monitor switch (COM-NO) housing and the switch actuator is no more than ¥ Door Sensing S/W 0.5mm when door is closed. Samsung Electronics...
  • Page 12 NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise. Additional power test should be made if temperature rise is marginal. NOTE 2: Output power in watts is computed by multiplying the temperature rise (step E) by a factor of 91 times the of centigrade temperature. Samsung Electronics...
  • Page 13: Procedure For Measurement Of Microwave Energy Leakage

    ; CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer. Samsung Electronics...
  • Page 14: Troubleshooting

    H.V.Transformer component test procedure and replace if it is H.V.Capacitor defective. H.V.Diode, H.V.Fuse Magnetron 4. Open or loose wiring of power relay 5. Defective primary latch switch 6. Defective power relay or Ass'y PCB Replace PCB main. Samsung Electronics...
  • Page 15 Use plastic wrap or cover with a lid. Stir once or twice while cooking foods such as soup, cocoa, or milk. Noise from the turntable motor Noise may result from the motor. Replace turntable motor. when it starts to operate. Samsung Electronics...
  • Page 16: Exploded Views And Parts List

    7. Exploded Views and Parts List 7-1 Exploded Views Samsung Electronics...
  • Page 17: Main Parts List

    2501-001014 C-OIL;1.05uF,2100V,BK,35X54X85,20mm DE59-40001A DIODE-H.V;HVR-1X-32B-12 DE91-70061A ASSY-H.V.FUSE;THV060T-0800-H,5KV/0.8A,WHT DE61-40017A FOOT;PP(A353),BLK,MW5630T DE31-10154A MOTOR-DRIVE;M2HJ49ZR02,ST-16,50/60HZ DE80-10001A BASE-PLATE;SGCC,T0.8,345,565 DE47-20173A THERMOSTAT;PW-2N(90/60)30,187Y,250V7.5A,9 CV-TCO DE71-60382A COVER-CEILING;MICASHEET,T0.5,70,133 DE92-40196M ASSY DOOR;M945CE/XSA,P/WHT,SEAU DE94-00070B ASSY CONTROL-BOX;240V50HZ,M945CE/XSA,P-WHT DE74-20015B TRAY-COOKING;GLASS,T6.0,PI318,1050G,MW5630T DE92-90189A ASSY-GUIDE ROLLER;MW5630T,D17.5 DE67-60002A COUPLER;PPS,5GR,BRN,M97G45 DE63-90065N CUSHION-GUIDE;PUT-FOAM,T10,W10,L200,BLK,MW55 CV/AIR DE63-90065O CUSHION-GUIDE;PUT-FOAM,T35,W20,L135,BLK,MW55 BASE DE63-90065O CUSHION-GUIDE;PUT-FOAM,T35,W20,L135,BLK,MW55 CAVITY 3601-000448 FUSE-FERRULE;250V,10A,SLOW-BLOW,CERAMIC,6.3...
  • Page 18: Door Parts List

    Exploded Views and Parts List 7-3 Door Parts List Ref. No Parts No. Description / Specification Q'ty Remarks DE67-20003W SCREEN-DOOR(B);ACRYL ,T1.5,W107.4,L401.5,WHT,M945CE/XSA,- DE02-00125A TAPE-DOUBLE FACE;ACRYL,T0.45,W9,WHT,WF103,#4420 0.58 DOOR/A DE64-40011A DOOR-A;RESIN-ABS(HR-0370U),T2.5,M945( DE92-50127H ASSY DOOR-E;COATING,BLACK,T0.8,-,-,-,- DE64-40012A DOOR-C;RESIN-PP(TB53),T2.0,CE945GF,BL DE64-40006D DOOR-KEY;NYLON#66,(2021SW),BLK,M945(EUW DE61-70032A SPRING-KEY;ES,HSWR,PI0.6,D5.4,L25,MW8640T DE61-80002A HINGE-UPPER;SCP1,T2.3,26,77,ZPC3,WHT,CE945 DE61-80003A HINGE-LOWER;SCP1,T2.3,26,77,ZPC3,WHT,CE945...
  • Page 19: Standard Parts List

    DE60-10082H SCREW-A;2S-4X12,TOOTHED BD-LAT DE60-10082H SCREW-A;2S-4X12,TOOTHED CN-BOX DE60-10082H SCREW-A;2S-4X12,TOOTHED CV/AIR DE60-10082H SCREW-A;2S-4X12,TOOTHED MO/FAN DE60-10082H SCREW-A;2S-4X12,TOOTHED PN/OUT DE60-10088A SCREW-TAP PH;PH,M3,L8,FEFZY,PLAIN DE60-10098A SCREW-ASSY TAP TITE;PH,TC,M4X8,SWRCH18A,ZPC2,GLD,W CV-TCO DE60-10098A SCREW-ASSY TAP TITE;PH,TC,M4X8,SWRCH18A,ZPC2,GLD,W M/GEAR DE60-10045A SCREW-TAP PH;PH,M3,L6,FEFZY DE60-10098A SCREW-ASSY TAP TITE;PH,TC,M4X8,SWRCH18A,ZPC2,GLD,W DE60-10012A SCREW-TAP TITE;TH,+,3,M4,L10,SWR10,ZPC2,TOOTH Samsung Electronics...
  • Page 20 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
  • Page 21 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE J01,J02,J03,J04,J05,J06,J07,J08 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE J09,J10,J11,J12,J13,J14,J15,J16 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE J17,J18,J19 3501-001016 RELAY-MINIATURE;24V,12.5mA,5A,1FormA,8mS,4mS RY02 3501-001016 RELAY-MINIATURE;24V,12.5mA,5A,1FormA,8mS,4mS RY03 3501-001062 RELAY-POWER;24VDC,523.2mW,16A,1FormA,15mS RY01 3708-000528 CONNECTOR-FPC/FC/PIC;13P,2.54mm,STRAIGHT,SN CN04 DE07-10081A V.F.DISPLAY;SVM-4SM03,GRN/RSHORG,4,51,81.7 VFD1 DE09-30530A IC-MCU;HD404316-C31S,DIP,M945/M245(EU IC01 DE26-20141A TRANS-L.V;SLV-945E,230V,50HZ,AC17/2.9V LVT1 DE30-20016A BUZZER;CBE2220BA,STICK BUZ1 DE61-90004A HOLDER-DIGITRON;NYLON#66,1.5,85,36,8GR,BLK Samsung Electronics...
  • Page 22: Schematic Diagrams

    POWER 3. LAMP : ON SYMBOL COLOR RELAY RELAY RELAY SWITCH L.V.T : P.C.B PATTERN BROWN BLUE : P.C.B IN/OUT ORANGE POINT ASSY MAIN P.C.B WHITE BLACK YELLOW DOOR MONITOR PRIMARY GREEN SENSING SWITCH LATCH YELLOW/GREEN SWITCH SWITCH Samsung Electronics...

Table of Contents