Related Manuals for Samsung MW5780H
Summary of Contents for Samsung MW5780H
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Page 1: Table Of Contents
MICROWAVE OVEN MW5780H SERVICE Manual CONTENTS MICROWAVE OVEN 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 (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...
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Page 3: Precaution
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your CENTRAL SERVICE CENTER body by touching a known earth ground. 10. Service technicians should remove their watches while repairing an MWO. Samsung Electronics... - Page 4 (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...
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Page 5: Specifications
2. Specifications 2-1 Table of Specifications MODEL MW5780H ITEM TIMER 99 MINUTES 99 SECONDS POWER SOURCE 120V/60HZ, AC POWER CONSUMPTION MICROWAVE : 1,200W OUTPUT POWER FROM 80W TO 800W (10 LEVEL POWER) (IEC-705 TEST PROCEDURE) OPERATING FREQUENCY 2,450MHz MAGNETRON OM75SH(31)ESS... -
Page 6: Operating Instructions
Power Level Selection Button Power Level Clock Sound Clock Start Button Cancel Start Canel Button Start Button MW5780H 3-2 Features & External Views Ventilation Holes Light Door Safety Interlock Holes Control Panel Door Latches Open Door Push Button Guide Roller Glass Plate 216.4mm... -
Page 7: Disassembly And Reassembly
4-2 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. Bolts H. V. Trans Samsung Electronics... - Page 8 1. Insertion depth of the thin metal plate should be 0.5mm or less. 4-3-4 Removal of Key Door & Spring Door "E" Remove pin hinge from Door "E" Detach spring from Door "E" and key door. Key Door Spring Samsung Electronics...
- Page 9 Switch remount it in the correct position with the coupler. Drive Motor Cover Base Plate 8. Connect all the leads to the drive motor. 9. Screw the drive motor cover to the base plate with a screw driver. Samsung Electronics...
- Page 10 3. When installing new membrane key board, make sure that the surface of escutcheon base is Membrane cleaned sufficiently so that any problems Panel (shorted contacts or uneven surface) can be avoided. Samsung Electronics...
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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 Door Open Door Closed procedures. ∞ Primary switch 5. Confirm that the gap between the switch ∞ Monitor switch (COM-NC) housing and the switch actuator is no more than ∞ Door Sensing S/W 0.5mm when door is closed. 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 5) by a factor of 80 times the of centigrade temperature. Samsung Electronics...
- Page 14 ; 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...
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Page 15: Troubleshooting
H.V.Transformer component test procedure and replace if it is H.V.Capacitor defective. H.V.Diode 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...
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Page 17: Exploded Views And Parts List
7. Exploded Views and Parts List 7-1 Exploded Views Samsung Electronics... - Page 18 DE59-40001A DIODE-H.V;HVR-1X-32B-12 DE74-20015B TRAY-COOKING;GLASS,T6.0,PI318,1050G,MW5630T DE92-90189D ASSY-GUIDE ROLLER;D19,STD DE67-60026C COUPLER;PTFE,12G,WHT,MB245 DE61-40017A FOOT;PP(A353),BLK,MW5630T DE80-10001A BASE-PLATE;SGCC,T0.8,345,565 DE31-10154A MOTOR-DRIVE;M2HJ49ZR02,ST-16,21V DE71-60011A COVER-MGT;PP,T2.0,WHT,M745 DE94-00103A ASSY CONTROL-BOX;120V60HZ,MW5780H,WHT,HOSPITAL DE92-40172A ASSY DOOR;TOUCH,WHT,MW5470W,800W DE63-90065N CUSHION-GUIDE;PUT-FOAM,T10,W10,L200,BLK,MW55 C-AIR DE63-90065O CUSHION-GUIDE;PUT-FOAM,T35,W20,L135,BLK,MW55 CAVITY DE39-20049C ASSY POWER CORD;KKP-30/SPT-2#3/16,125V13A,L135 DE47-20173A THERMOSTAT;PW-2N(90/60)30,187Y,250V7.5A,9 DE63-90035G CUSHION-RUBBER;DFA20,T2,W190,L100,BLK DE61-50490A BRACKET-TCO;SECC1,T0.6,34,58 : Warning...
- Page 19 Parts No. Description/Specification Q'ty Remarks DE66-20010A BUTTON-PUSH;ABS(VH-080),WHT,17.6G,MW4370W DE61-70076A SPRING-BUTTON;HSWR,PI0.6 DE34-00013A SWITCH-MEMBRANE;PET,MW5780H,120V60HZ DE72-70161A CONTROL-PANEL;ABS(VH-0800),PURE-WHT,MW5470W DE67-40003A WINDOW-DISPLAY;ACRYL,T2.3,W36.8,L91.8,SMOG,MW DE97-00032A ASSY PCB-MAIN;MW5780H/XAA,RA-1660-04 DE93-30402J ASSY CONTROL-PANEL;M94B/SBW 7-4 Body Latch Parts List Ref. No. Parts No. Description/Specification Q'ty Remarks DE66-40001A LATCH-BODY;POM(F20-02),40GR,NTR 3405-000178 SWITCH-MICRO;250V,15A,200gf,SPST-NO 3405-000175 SWITCH-MICRO;250V,15A,200gf,SPST-NO DE66-90001A LEVER-SWITCH;P.O.M(F20-02),2,6,NTR,2ND-W-P/...
- Page 20 SCREW-A;2S-4X12,TOOTHED CV/AIR DE60-10082H SCREW-A;2S-4X12,TOOTHED MEM-P DE60-10082H SCREW-A;2S-4X12,TOOTHED O-PANEL DE60-10082H SCREW-A;2S-4X12,TOOTHED P/EARTH 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 DE60-20063A BOLT-FLANGE;M4,10,ZPC3,YEL,MSWR HI-LO DE60-20063A BOLT-FLANGE;M4,10,ZPC3,YEL,MSWR HI-UP DE60-10045A SCREW-TAP PH;PH,M3,L6,FEFZY DE60-10082H SCREW-A;2S-4X12,TOOTHED C/MOTOR DE60-10082J SCREW-TAPPING;TH,2S-4X8,MSWR3,ZPC,YEL,WS DE60-10088A SCREW-TAP PH;PH,M3,L8,FEFZY,PLAIN Samsung Electronics...
- Page 21 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
- Page 22 CONNECTOR-HEADER;1WALL,3P,1R,3.96mm,ANGLE,SN CON06 3711-000881 CONNECTOR-HEADER;BOX,3P,1R,2.5mm,STRAIGHT,SN CON04 DE13-20009A IC;KA7533,DIP IC03 DE39-60001A WIRE-SO COPPER;PI0.6,SN,T,52MM,TAPING_WIRE J01,J02,J03,J04,J05,J06,J07 3501-001014 RELAY-POWER;24V,21.8mA,17A,1FormA,20mS,8mS RY02 3501-001050 RELAY-MINIATURE;24VDC,200mW,5A,1FormA,10mS,5mS RY01 3708-000528 CONNECTOR-FPC/FC/PIC;13P,2.54mm,STRAIGHT,SN CON01 DE07-10035A V.F.DISPLAY;SVM-07SS10,SEA VFD1 DE26-20144A TRANS-L.V;SLV-5574U,120V,60HZ,AC17V/2.7V LVT1 DE30-20016A BUZZER;CBE2220BA,STICK BUZ1 DE61-90164A HOLDER-DIGITRON;NYLON#66,T1.8,BLK,MW4370W P36 77199-0143-00 IC-MCU;HD4074339SI DIP OTP IC01 Samsung Electronics...
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Page 23: Schematic Diagrams
9. Schematic Diagrams 9-1 Schematic Diagrams WARNING Model Name : MW5780H POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE CAVITY PRIMARY S/W FUSE H. V. TRANSFORMER 250V15A H. V. DIODE 120V 130V 120V POWER CORD H. V. CAPACITOR AC 120V/60Hz...