Related Manuals for Samsung M643
Summary of Contents for Samsung M643
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Page 1: Table Of Contents
MICROWAVE OVEN M643 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... -
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 230V 50Hz, AC M643 POWER CONSUMPTION MICROWAVE : 1,300W 4 sec 26 sec 150W 7 sec 23 sec OUTPUT POWER FROM 75 TO 750W (10 LEVEL POWER) -
Page 5: Operating Instructions
Clock Stting Button 10s. 1min 10min Timer Stting Button Power Level Selection Button Instant Cook Button Cancel Button Standard Boost Button 1min+ M643 3-2 Features & External Views Ventilation Slot Light Door Safety Interlock Holes 0.1 kg Auto 10s. 10min... -
Page 6: Disassembly And Reassembly
4-1 Replacement of High Voltage Transformer 1. Discharge the high voltage capacitor. 2. Disconnect all the leads. 3. Remove the mounting bolts. 4. Reconnect the leads correctly and firmly. 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 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 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...
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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
∞ procedures. 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 5. After heating for 2 minutes, measure the water temperature in each beaker. 6. Microwave heat distribution rate can be calculated as follows: Minimum Beaker Temperature Rise Heat Distribution = X 100(%) Maximum Temperature Rise The result should exceed 65%. Cooking Tray Samsung Electronics...
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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...
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Page 16: Exploded Views And Parts List
7. Exploded Views and Parts List 7-1 Exploded Views Samsung Electronics... -
Page 17: Main Parts List
DE66-90013A LEVER-DOOR;POM(F20-01) NTR MW5630T M 30 DE71-60011A COVER-MGT;PP T2.0 WHT M745 M 31 ASSY CONTROL-BOX(C);230V50HZ M643(SAW) WHT/BASIC M 32 ASSY DOOR;BUTTON WHT M633/M643 WHT/BASIC M 33 DE61-80004A HINGE-LOWER;SCP1 T2.3 ZN-COATING BLK M 34 DE61-80005A HINGE-UPPER;SCP1 T2.3 BLK ZN-COATING M 35 DE63-90065F CUSHION-LAMP;PUT-FOAM T40 W10 L290 SM2... -
Page 18: Door Parts List
SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2 P-CO-E DE60-10033A SCREW-TH;TH + M4 L10 MSWR10 FEFZY HI-UPP DE02-00125A TAPE-DOUBLE FACE;ACRYL T0.45 W9 WHT WF10 DOOR-A DE60-10033A SCREW-TH;TH + M4 L10 MSWR10 FEFZY HI-LOW DE60-10012A SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2 N/FILT Samsung Electronics... - Page 19 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
- Page 20 2202-000205 “C-CERAMIC,MLC-AXIAL;22pF,5%,50V,SL,TP,1.9x3.5 C07,C08 2202-000780 “C-CERAMIC,MLC-AXIAL;100nF,+80-20%,50V,Y5V,TP,3.5x1 C05,C06,C09,C10,C11 2401-000244 C-AL;100uF,20%,10V,GP,TP,6.3x7,5 2401-000914 C-AL;22uF,20%,16V,GP,TP,5x11,5 2401-001363 C-AL;470uF,20%,16V,GP,TP,10x12.5,5 2401-001415 C-AL;470uF,20%,35V,GP,TP,10x20,5 2802-000143 RESONATOR-CERAMIC;4.19MHz,0.5%,TP,10.0x5.0x7.5mm XTL1 3711-000203 CONNECTOR-HEADER;1WALL,3P,1R,3.96mm,ANGLE,SN CN01 3711-000240 CONNECTOR-HEADER;1WALL,4P,1R,3.96mm,STRAIGHT,SN CN02 3711-000881 CONNECTOR-HEADER;BOX,3P,1R,2.5mm,STRAIGHT,SN CN03 DE13-20009A IC;KA7533,DIP IC03 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE J01~J28 DE41-10341A P.C.B-MAIN;FR-1,T1.6,W88,L163,LED2ND(M745 DE60-60012A PIN-EYELET;ID2.1,OD2.5,L3.0,SN,BSP,T0.25 E01~E08 Samsung Electronics...
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Page 21: Schematic Diagrams
: P.C.B IN/OUT ORANGE POINT ASSY MAIN P.C.B WHITE BLACK YELLOW MONITOR PRIMARY DOOR GREEN SWITCH LATCH SENSING YELLOW/GREEN SWITCH SWITCH MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS HIGH VOLTAGE CAPACITOR H.V.FUSE SYMBOL COLOR ORANGE BROWN BLUE HIGH VOLTAGE TRANSFORMER Samsung Electronics...