Samsung CE2774R Service Manual
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Samsung CE2774R Service Manual

Samsung CE2774R Service Manual

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SERVICE
MICROWAVE OVEN
SRSC
MICROWAVE OVEN
CE2774R (WHITE)
Manual
8. PCB Diagrams
CONTENTS

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Summary of Contents for Samsung CE2774R

  • Page 1: Table Of Contents

    MICROWAVE OVEN CE2774R (WHITE) 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 SRSC...

  • Page 2: Microwave Energy

    (e) A Microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner. Samsung Electronics...

  • Page 3: Precaution

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

  • Page 4: 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 5: Specifications

    (IEC-705 TEST PROCEDURE) OPERATING FREQUENCY 2,450MHz MAGNETRON OM75PH(31) COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 489(W) x 275(H) x 388(D) 2-2 Comparison Chart AUTO REHEAT AUTO COOK COOK POWER LEVEL TIME SETTING AND WEIGHT AUTO DEFROST GRILL COMBI Samsung Electronics...

  • Page 6: Operating Instructions

    Power Level Button Grill Button Time Setting Selection Start Button Cancel Button + 30 s CE2774 3-2 Features & External Views Door Safety Interlock Hole Light Ventilation Holes Control Panel Glass Plate Roller Ring Door Latches Coupler 489mm 388mm Samsung Electronics...

  • Page 7: Disassembly And Reassembly

    HIGH VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near these circuits with the oven energized. DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron. Samsung Electronics...

  • Page 8: 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" Detach spring from Door "E" and key door. Door "E" Key Door Spring Samsung Electronics...

  • Page 9: Replacement Of Fuse/Drive Motor

    Drive Motor Cover 8. Connect all the leads to the drive motor. 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 10 3. Lift up the control circuit board from the Ass'y Connector control box. 4. When reconnecting the FPC connector, make sure that the holes on the connector are properly screw engaged with the hooks on the Plastic Fastener. Samsung Electronics...

  • Page 11: 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 12: High Voltage Capacitor

    ¥ Primary switch 5. Confirm that the gap between the switch ¥ Monitor switch (COM-NC) housing and the switch actuator is no more than ¥ Monitor switch (COM-NO) 0.5mm when door is closed. ¥ Door Sensing S/W Samsung Electronics...
  • Page 13 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 14: Procedure For Measurement Of Microwave Energy Leakage

    ; CENTRAL SERVICE CENTER 5-12-2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer. Samsung Electronics...

  • Page 15: 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 16 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 17: Exploded Views And Parts List

    7. Exploded Views and Parts List 7-1 Exploded Views Samsung Electronics...

  • Page 18: Main Parts List

    SHV-273EG,230V50HZ,2215V/3.40V,-,KE DE31-10154A MOTOR-DRIVE M2HJ49ZR02,ST-16,50/60HZ DE47-20010A THERMOSTAT PW-2N(120/60)187Y,250V7.5A,120 CAV-TCO DE71-60462A COVER-CEILING MICA-SHEET,T0.3,W109.2,L114.2 DE94-00201H ASSY DOOR CE2714R/BWT,P-WHT,FISH2 ,RUSSIA DE94-00097S ASSY CONTROL-BOX CE2774R/BWT,P-WHT,FISH2,GRILL DE74-20102B TRAY-COOKING GLASS,T5.0,PI288,780G,M745 DE92-90436C ASSY-GUIDE ROLLER MW4370W,D16.5,XAREX DE67-60075A COUPLER PPS,7G,BRN,M97G45 DE74-70071B RACK-WIRE MSWR3,PI3,PI230,HI80,SNC2 :Electrostatically Sensitive Devices Warning : Option Parts...

  • Page 19: Door Parts List

    ASSY DOOR-A CE2714R/BWT,P-WHT,FISH2,SUB-PART 7-4 Control Parts List Ref. No. Parts No. Description Specification Q'ty Remarks DE67-00003B WINDOW-DISPLAY ACRYL,-,-,-,SMOG,M1774,- DE71-00005G COVER-PANEL ABS(HR0370),-,-,-,P-WHT,CE2774/XEF DE72-00009S CONTROL-PANEL ABS,CE2774R/BWT,-,-,-,-,P-WHT,FISH2 DE64-00009A KNOB-POWER ABS(HR0370),P-WHT,CE2714 DE66-00014A BUTTON-SELECT(B) ABS(HR0370),-,-,P-WHT,M1774/XEF DE66-00016A BUTTON-CANCEL ABS(HR0370),-,-,P/WHT DE66-00015A BUTTON-CLOCK ABS(HR0370),-,-,P/WHT DE66-20182J BUTTON-START ABS,-,2G,P/WHT,M1774,3RD FISH2 DE71-60378A COVER-LAMP POM,T2,W19.4,L27,3G,NTR,RE-446...

  • Page 20: Standard Parts List

    SCREW-TAP TH TAP,TH,2-4X8,FE,FN CV-CEILING DE60-10122A SCREW-TAP TH TAP,TH,2-4X8,FE,FN P-OUTER DE60-20063A BOLT-FLANGE M4,10,ZPC3,YEL,MSWR H/LOWER DE60-20063A BOLT-FLANGE M4,10,ZPC3,YEL,MSWR H/UPPER DE60-30016A NUT-FLANGE M4,MSWR10 F-MOTOR 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 DE60-10088A SCREW-TAP PH PH,M3,L8,FEFZY,PLAIN DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY SCR/DOOR Samsung Electronics...
  • Page 21 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
  • Page 22 RELAY-POWER 24VDC,523.2mW,16A,1FormA,15mS, RY03 3501-001068 RELAY-POWER 24Vdc,523mW,16A,1FormA,15mS,10 RY04 3601-001126 FUSE-FERRULE 250V,1.6A,FA,CERAMIC,5X20MM FUS1 3708-001315 CONNECTOR-FPC/FC/PIC 12P,2mm,STRAIGHT,SN CN05 DE09-00049A IC-MCU HD404316-E02S,CE2974R/CE2774R,4BIP,SDIP IC01 DE26-20146A TRANS-L.V SLV-745EN,230V,50HZ,AC17/7V LVT1 DE30-20016A BUZZER CBE2220BA,STICK BUZ1 DE34-20071A SWITCH-ROTARY DC10V,1MA,SH,PA-1005A-003-000 ECD1 DE39-40723A WIRE HARNESS DC35V,C-959G,80mm,12PIN WIR1 DE47-40024A HOLDER-FUSE FH-51H,7.5A FUS1...

  • Page 23: Schematic Diagrams

    BRN : BROWN BLU : BLUE DOOR IS OPENED 3.LAMP : ON WHT : WHITE ORG : ORANGE : P.C.B PATTERN COOK OFF RED : RED YEL : YELLOW : P.C.B IN/OUT POINT BLK : BLACK Y/G : YELLOW GREEN Samsung Electronics...

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