Related Manuals for Samsung MG7980W
Summary of Contents for Samsung MG7980W
-
Page 1: Table Of Contents
MICROWAVE OVEN MG7980W 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: Precaution
16. Always connect a test instrument's ground 10. Service technicians should remove their lead to the instrument chassis ground before watches while repairing an MWO. connecting the positive lead; always remove the instrument's ground lead last. Samsung Electronics... -
Page 3: Specifications
PRECAUTION with the oven energized. DO NOT measure the voltage in the high voltage circuit Servicemen should remove their watches whenever including filament voltage of magnetron. working close to or replacing the magnetron. Samsung Electronics... -
Page 4: Specifications
2. Specifications 2-1 Table of Specifications MODEL MG7980W ITEM TIMER 99 MINUTES 99 SECONDS POWER SOURCE 120V/60HZ, AC POWER CONSUMPTION MICROWAVE : 1,400W HEATER : 1,300W OUTPUT POWER FROM 100W TO 1000W (10 LEVEL POWER)/(IEC-705 TEST PROCEDURE) OPERATING FREQUENCY 2,450MHz... -
Page 5: Operating Instructions
Start Button Pause / Cancel Button Start Cancel 3-2 Features & External Views Heater Ventilation Hole Light Door Safety Interlock Holes Control Panel Metal Rack Door Latches Open Door Push Button Guide Roller Glass Tray 260mm 402mm 556mm 444mm Samsung Electronics... -
Page 6: Disassembly And Reassembly
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the 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 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
7. When replacing the drive motor, be sure to remount it in the correct position with the Drive Motor Cover Base Plate coupler. 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 9 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...
-
Page 10: Alignment And Adjustments
5-1 High Voltage Transformer 1. Remove connectors from the transformer terminals and check continuity. Filament Terminals 2. Normal resistance readings are as follows: Primary Terminals MODEL MG7980W Secondary 75Ω ± 10% Filament Shows Continuity Primary 0.30Ω ± 10% (Room temperature = 20˚C) -
Page 11: High Voltage Capacitor
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 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 80%. Cooking Tray 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 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: Electrical Malfunction
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 17 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 18: Exploded Views And Parts List
7. Exploded Views and Parts List 7-1 Exploded Views Samsung Electronics... -
Page 19: Main Parts List
DE61-70060A SPRING-PLATE SK-5,T0.5 3601-000440 FUSE-FERRULE 250V,20A,TL,CERAMIC,6.35x31.8m DE91-40101A ASSY NOISE FILTER SN-U20A,250V,20A,SECA DE31-10157A MOTOR-FAN SMF-657UC,120/60,2600,MB6774W DE39-20037G ASSY POWER CORD KKP-30B,120V60HZ,1150,GRY DE39-40735A WIRE HARNESS-A 120V60Hz,MG7980W/XAP,SEPA DE47-20009A THERMOSTAT PW2N-520PB,160/60,250V/7.5A,H DE61-50490A BRACKET-TCO SECC1,T0.6,34,58 DE65-20014A CABLE CLAMP DA-6N,NY-66 P-CORD OM75PH(31)ESS ASSY-MAGNETRON OM75PH(31)ESS DE63-90065N CUSHION-GUIDE PUT-FOAM,T10,W10,L200,BLK,MW55... -
Page 20: Door Parts List
Ref. No. Parts No. Description Specification Q'ty Remarks DE66-20006A BUTTON-PUSH RESIN-ABS(HR-0370U),P/WHT,M945 DE61-70076A SPRING-BUTTON HSWR,PI0.6 DE34-10206Y SWITCH-MEMBRANE PE-SHEET,W89.7,L199.8,MG7980W, DE72-70005A CONTROL-PANEL ABS(VH0853),164G,PURE-WHT,T2.5 DE67-40002A WINDOW-DISPLAY RESIN-ACRYLIC,T2.3,M945(IDEO), RA-USA2ND-31 ASSY PCB PARTS MG7980W(SEPW),AC120V60Hz DE93-30404E ASSY CONTROL-PANEL MW6574W 7-5 Body Latch Parts List Ref. No. Parts No. -
Page 21: Standard Parts List
DE60-10122A SCREW-TAP TH TAP,TH,2-4X8,FE,FN B/EART DE60-10122A SCREW-TAP TH TAP,TH,2-4X8,FE,FN C-CEIL DE60-20063A BOLT-FLANGE M4,10,ZPC3,YEL,MSWR HI-LOW DE60-20063A BOLT-FLANGE M4,10,ZPC3,YEL,MSWR HI-UPP DE60-10045A SCREW-TAP PH PH,M3,L6,FEFZY DE60-10082J SCREW-TAPPING TH,2S-4X8,MSWR3,ZPC,YEL,WS B/HVC DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH DE60-10088A SCREW-TAP PH PH,M3,L8,FEFZY,PLAIN DE60-10045A SCREW-TAP PH PH,M3,L6,FEFZY Samsung Electronics... - Page 22 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
- Page 23 RESONATOR-CERAMIC 4MHz,0.5%,TP,10.0x5.0x7.5mm X-TAL 3711-000240 CONNECTOR-HEADER 1WALL,4P,1R,3.96mm,STRAIGHT,SN CON01 3711-000881 CONNECTOR-HEADER BOX,3P,1R,2.5mm,STRAIGHT,SN CON04 DE13-20009A IC KA7533,DIP IC02 DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE J02,J03,J04,J05,J06,J07 DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE J08,J09,J10,J11,J12,J13 DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE J14,J15,J16,J17,J18,J19 DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE J20,J21,J22,J23,J24,J25 DE41-10330A P.C.B-MAIN FR-1,T1.6,W88,L163,USA-2ND Samsung Electronics...
-
Page 24: Schematic Diagrams
FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS. : P.C.B IN/OUT POINT MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS PRIMARY SWITCH HIGH VOLTAGE CAPACITOR DOOR SENSING SWITCH MONITOR SWITCH BOTTOM CENTER SYMBOL COLOR ORANGE HIGH VOLTAGE WHITE TRANSFORMER BLACK BLUE YELLOW POWER RELAY Samsung Electronics...