Table of Contents
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SERVICE
MICROWAVE OVEN
SEA
MICROWAVE OVEN
MR5481G / MR5482W
MR6481G / MR6482W
1. Precaution
2. Specifications
3. Operating Instructions
4. Disassembly and Reassembly
5. Alignment and Adjustments
One Minute +
Popcorn
Diet Cook
Frozen
Potato
Dinner
Fresh
Frozen
Vegetable
Breakfast
Auto
Auto
Defrost
Reheat
1
2
3
6. Troubleshooting
4
5
6
7
8
9
0
Power Level
More/Less
Clock
Hold
Auto Start
Timer
Pause
Start
Cancel
7. Exploded Views and Parts List
8. PCB Diagrams
9. Schematic Diagrams
Manual
CONTENTS
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Table of Contents
Related Manuals for Samsung MR5481G
Summary of Contents for Samsung MR5481G
- Page 1 MICROWAVE OVEN MR5481G / MR5482W MR6481G / MR6482W SERVICE Manual CONTENTS MICROWAVE OVEN 1. Precaution 2. Specifications 3. Operating Instructions 4. Disassembly and Reassembly 5. Alignment and Adjustments One Minute + Popcorn Diet Cook Frozen Potato Dinner Fresh Frozen Vegetable...
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Page 2: Precaution
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your SAMSUNG ELECTRONICS AMERICA, INC. body by touching a known earth ground. HEADQUARTER OFFICE 105 CHALLENGER ROAD 16. Always connect a test instrument's ground RIDGEFIELD PARK N.J.07660-0511... -
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 MODEL MR5481G / MR5482W MR6481G / MR6482W ITEM TIMER 99 MINUTES 99 SECONDS 99 MINUTES 99 SECONDS POWER SOURCE 120V/60HZ, AC 120V/60HZ, AC POWER CONSUMPTION MICROWAVE : 1,300W MICROWAVE : 1,400W OUTPUT POWER FROM 90W TO 900W (10 LEVEL POWER) -
Page 5: Operating Instructions
Clock Hold Auto Start Timer Pause Start Cancel MR5481G / MR5482W : 216.4mm MR6481G / MR6482W : 260mm MR5481G / MR5482W : 369mm MR6481G / MW6482W : 402mm MR5481G / MR5482W : 317.4mm MR5481G / MR5482W:517mm MR6481G / MR6482W:429mm MR6481G / MR6482W:556mm... -
Page 6: 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 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
3. Do the microwave leakage test. 4-4 Replacement of Fuse 1. Disconnect the oven from the power source. 2. Remove the 15A(MR5481G / MR5482W) / 20A(MR6481G / MR6482W) fuse in the fuse holder. 3. When replacing the fuse, be sure to use an exact replacement part. - 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...
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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 ∞ Secondary 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 65%. Cooking Tray Samsung Electronics...
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Page 13: Procedure For Measurement Of Microwave Energy Leakage
2) If the radiation leakage is more than 5 mW/§† after determining that all parts are in good condition, functioning properly and the identical parts are replaced as listed in this manual notift that fact to ; SAMSUNG ELECTRONICS AMERICA, INC. HEADQUARTER OFFICE 105 CHALLENGER ROAD RIDGEFIELD PARK N.J.07660-0511... -
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...
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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 Exploded Views and Parts List 7-2 Main Parts List (MR5481G / MR5482W) Ref. No. Parts No. Description/Specification Q'ty Remarks DE70-30001W PANEL-OUTER;V/STEEL T0.5+T0.2 W360 L1128 MR5481G DE70-30001U PANEL-OUTER;SECC T0.6 W360 L1128 WHT MR548 MR5482W DE91-40100A ASSY NOISE FILTER;SN-U15A 250V 15A SECA DE31-10156B MOTOR-FAN;SMF-557UC 120/60 2600 MW5574W...
- Page 18 WINDOW-DISPLAY;ACRYL T2.3 W36.8 L91.8 SM DE91-10368A ASSY P.C.B-MAIN;120V/60HZ NS V.F.D N/HEL DE93-30402B ASSY CONTROL-PANEL;NEWGARD 0.9 MR5481G DE93-30402A ASSY CONTROL-PANEL;120V60HZ NEWGARD MW5470W MR5482W 7-5 Body Latch Parts List (MR5481G / MR5482W) 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...
- Page 19 THERMOSTAT;PW-2N 80/70 125V15A/250V7.5A 187 M 29 DE63-90035I CUSHION-RUBBER;DFA20 T1.5 W190 L100 BLK JE1 M 30 DE61-50490A BRACKET-TCO;SECC1 T0.6 34 58 M 31 DE91-70101C ASSY-THERMOSTAT;MW5574W 160/60 187-HORIZ M 32 DE60-60025A PIN-FOOT;PP-JI350 BLK : Warning : Option Parts :Electrostatically Sensitive Devices Samsung Electronics...
- Page 20 MR6481G DE93-30405A ASSY CONTROL-PANEL;120V60HZ MW6370W 1.2(WHT) MR6482W 7-5 Body Latch Parts List (MR6481G / MR6482W) Ref. No. Parts No. Description/Specification Q'ty Remarks DE66-40001A LATCH-BODY;POM(F20-02) 40GR NTR 3405-000178 SWITCH-MICRO;VP-533A-OF-PS(T85) 250V,15A 3405-000175 SWITCH-MICRO;VP-531A-OF(T85) 250V,15A,20 DE66-90001A LEVER-SWITCH;P.O.M(F20-02) 2 6 NTR 2ND-W Samsung Electronics...
- Page 21 Exploded Views and Parts List 7-6 Standard Parts List (MR5481G/MR5482W/MR6481G/MR6482W) Parts No. Description / Specification Q'ty Remarks DE60-10082A SCREW-A;M4 L12 2S TOOTHED BASE DE60-10088A SCREW-TAP PH;PH M3 L8 FEFZY PLAIN DE60-10082A SCREW-A;M4 L12 2S TOOTHED B-LATC DE60-10082A SCREW-A;M4 L12 2S TOOTHED...
- Page 22 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
- Page 23 IC-MCU;MB89143AP-168 8K DIP 64PIN IC01 DE13-20009A IC;KA7533 DIP IC02 DE26-20144A TRANS-L.V;DN-5574W,CE-5574W 120V 60HZ AC LVT1 DE30-20016A BUZZER;CBE2220BA STICK BUZ1 DE39-60001A WIRE-SO COPPER;PI0.6 SN T 52MM J01~25 DE60-60012A PIN-EYELET;ID2.1 OD2.5 L3.0 SN BSP T0.25 DE61-90164A HOLDER-DIGITRON;NYLON#66 T1.8 BLK MW4370 Samsung Electronics...
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Page 24: Schematic Diagrams
ORG : ORANGE : P.C.B IN/OUT POINT BLK BLU : GREEN (CON1) DOOR PRIMARY INTERLOCK SENSING INTERLOCK MONITOR SWITCH SWITCH SWITCH MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS HIGH VOLTAGE CAPACITOR SYMBOL COLOR ORANGE HIGH VOLTAGE WHITE TRANSFORMER BLACK BLUE Samsung Electronics...