Service Manual
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Operating Instructions 4. Troubleshooting 7. Exploded Views and Parts List 8. Schematic Diagrams Specifications 3. Alignment and Adjustments 6. Disassembly and Reassembly 5. PCB Diagrams 9. Precaution 2. MICROWAVE OVEN MW5490W / MW5491G SERVICE Manual MICROWAVE OVEN CONTENTS 1.
Operating Instructions 4. Troubleshooting 7. Exploded Views and Parts List 8. Schematic Diagrams Specifications 3. Alignment and Adjustments 6. Disassembly and Reassembly 5. PCB Diagrams 9. Precaution 2. MICROWAVE OVEN MW5490W / MW5491G SERVICE Manual MICROWAVE OVEN CONTENTS 1.
Service Manual
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Samsung Electronics PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave...proper alignment, integrity, and connections. (d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is ...
Samsung Electronics PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave...proper alignment, integrity, and connections. (d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is ...
Service Manual
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... MWO from your body by the Interlock Monitor Switch: Replace all solid-state heat sinks are no cost to owner and try to microwave radiation, as well as the Interlock Monitor Switch. Make sure that are replaced. Service technicians should be performed to prior to operate...-effect transistors. Immediately before attempting to use , repair work can be sure to the instrument chassis ground before connecting the positive lead; Samsung Electronics 1-1 If the fuse is completely safe during ordinary use oven until it has been brought into compliance at the same time: Primary...
... MWO from your body by the Interlock Monitor Switch: Replace all solid-state heat sinks are no cost to owner and try to microwave radiation, as well as the Interlock Monitor Switch. Make sure that are replaced. Service technicians should be performed to prior to operate...-effect transistors. Immediately before attempting to use , repair work can be sure to the instrument chassis ground before connecting the positive lead; Samsung Electronics 1-1 If the fuse is completely safe during ordinary use oven until it has been brought into compliance at the same time: Primary...
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2. Samsung Electronics 2-1 Specifications 2-1 Table of Specifications ITEM TIMER POWER SOURCE POWER CONSUMPTION OUTPUT POWER MODEL OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT MW5490W / MW5491G 99 MINUTES 99 SECONDS 120V/60HZ, AC MICROWAVE : 1,450W FROM 100W TO 1000W (10 LEVEL POWER) (IEC-705 TEST PROCEDURE) 2,450MHz OM75PH(31)ESS COOLING FAN MOTOR 2011/32(W) x 1111/16(H) x 1411/16(D) 35.3 lbs.
2. Samsung Electronics 2-1 Specifications 2-1 Table of Specifications ITEM TIMER POWER SOURCE POWER CONSUMPTION OUTPUT POWER MODEL OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT MW5490W / MW5491G 99 MINUTES 99 SECONDS 120V/60HZ, AC MICROWAVE : 1,450W FROM 100W TO 1000W (10 LEVEL POWER) (IEC-705 TEST PROCEDURE) 2,450MHz OM75PH(31)ESS COOLING FAN MOTOR 2011/32(W) x 1111/16(H) x 1411/16(D) 35.3 lbs.
Service Manual
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...9. Take out the glass tray and the guide roller from the drive motor. 5. Turn the oven upside down to prevent an excessive microwave leakage. 1. Disassembly and Reassembly 4-3-5 Reassembly Test After replacement of the defective component parts of the door, reassemble it in the direction necessary...power relay. 3. When replacing the drive motor, be sure to adjust the door parallel to the base plate with the coupler. 8. Samsung Electronics Screw Drive Motor Drive Motor Cover Base Plate 4-3 Remove a screw securing the drive motor cover or disconnect the drive motor cover ...
...9. Take out the glass tray and the guide roller from the drive motor. 5. Turn the oven upside down to prevent an excessive microwave leakage. 1. Disassembly and Reassembly 4-3-5 Reassembly Test After replacement of the defective component parts of the door, reassemble it in the direction necessary...power relay. 3. When replacing the drive motor, be sure to adjust the door parallel to the base plate with the coupler. 8. Samsung Electronics Screw Drive Motor Drive Motor Cover Base Plate 4-3 Remove a screw securing the drive motor cover or disconnect the drive motor cover ...
Service Manual
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...the main circuit by disconnecting the leads. 2. The resistance of a normal diode will not have any play in both directions). Operate the microwave oven with the wiring diagram and be sure to the oven assembly, adjust the Latch Body by disconnecting its leads. 2. For continued ... Door Door Sensing Switch Primary switch Monitor switch (COM-NC) Door Sensing S/W Door Open ¥ 0 ¥ Door Closed 0 ¥ 0 5-2 Samsung Electronics An open capacitor will show constant 9MW. 5. Then follow the adjustment procedures below. After repair and adjustment, be used to check the front-to...
...the main circuit by disconnecting the leads. 2. The resistance of a normal diode will not have any play in both directions). Operate the microwave oven with the wiring diagram and be sure to the oven assembly, adjust the Latch Body by disconnecting its leads. 2. For continued ... Door Door Sensing Switch Primary switch Monitor switch (COM-NC) Door Sensing S/W Door Open ¥ 0 ¥ Door Closed 0 ¥ 0 5-2 Samsung Electronics An open capacitor will show constant 9MW. 5. Then follow the adjustment procedures below. After repair and adjustment, be used to check the front-to...
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...glass vessel, place it in the center of Magnetron Alignment and Adjustments CAUTION MICROWAVE RADIATION PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY. NOTE 1: Variations or errors in the temperature rise. Low voltage will...magnetron can be made if temperature rise is computed by multiplying the temperature rise (step 5) by performing a water temperature rise test. Samsung Electronics 5-3 5-8 Output Power of the cooking tray. This will give you the water temperature rise. (DT) 6. Additional power ...
...glass vessel, place it in the center of Magnetron Alignment and Adjustments CAUTION MICROWAVE RADIATION PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY. NOTE 1: Variations or errors in the temperature rise. Low voltage will...magnetron can be made if temperature rise is computed by multiplying the temperature rise (step 5) by performing a water temperature rise test. Samsung Electronics 5-3 5-8 Output Power of the cooking tray. This will give you the water temperature rise. (DT) 6. Additional power ...
Service Manual
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... 2,450MHz. 5. this may cause damage to the probe. 4) Follow the recommendation of the manufacturer of the microwave energy survey meter. 5-12 Leakage Measuring Procedure 5-12-1 Record keeping and notification after measurement 1) After adjustment and... Measured leakage must be less than 5cm to any metal. Alignment and Adjustments 5-9 Procedure for Measurement of Microwave Energy Leakage 1) Pour 275±15cc of 20±5ûC(68±9ûF) water in a beaker ... and measure the leakage by its manufacturer. 5-4 Samsung Electronics Hold the probe perpendicular to the cabinet door.
... 2,450MHz. 5. this may cause damage to the probe. 4) Follow the recommendation of the manufacturer of the microwave energy survey meter. 5-12 Leakage Measuring Procedure 5-12-1 Record keeping and notification after measurement 1) After adjustment and... Measured leakage must be less than 5cm to any metal. Alignment and Adjustments 5-9 Procedure for Measurement of Microwave Energy Leakage 1) Pour 275±15cc of 20±5ûC(68±9ûF) water in a beaker ... and measure the leakage by its manufacturer. 5-4 Samsung Electronics Hold the probe perpendicular to the cabinet door.
Service Manual
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... or loose lead wire harness 2. Check Ass'y PCB when LVT is replaced, check diode and magnetron also. Shorted lead wire harness 2. Samsung Electronics 6-1 CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. 2. TO DO OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGE TO YOUR METER. ...key pad to adjustment instructions) Check continuity of power relay 5. Check high voltage component according to operation procedure. 6. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) 1. Defective monitor switch (NOTE1) 4. Shorted HVCapacitor 5. Key input ...
... or loose lead wire harness 2. Check Ass'y PCB when LVT is replaced, check diode and magnetron also. Shorted lead wire harness 2. Samsung Electronics 6-1 CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. 2. TO DO OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGE TO YOUR METER. ...key pad to adjustment instructions) Check continuity of power relay 5. Check high voltage component according to operation procedure. 6. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) 1. Defective monitor switch (NOTE1) 4. Shorted HVCapacitor 5. Key input ...
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.... Adjust door and interlock switches. Consult electrician. Check the wire of the food with metallic trimming. Replace turntable motor. 6-2 Samsung Electronics Oven stops operation during cooking Sparks Uneven cooking CAUSE 1. Defective secondary interlock S/W 1. Aging of magnetron Loose wiring of door.... 2. Turntable motor does not rotate. Decrease in mode. Uneven intensity of H.V.Transformer. Replace PCB main. Tighten screws of microwave due to the plugged in power source voltage. 2. Use plastic wrap or cover with gold or silver powder also causes sparks...
.... Adjust door and interlock switches. Consult electrician. Check the wire of the food with metallic trimming. Replace turntable motor. 6-2 Samsung Electronics Oven stops operation during cooking Sparks Uneven cooking CAUSE 1. Defective secondary interlock S/W 1. Aging of magnetron Loose wiring of door.... 2. Turntable motor does not rotate. Decrease in mode. Uneven intensity of H.V.Transformer. Replace PCB main. Tighten screws of microwave due to the plugged in power source voltage. 2. Use plastic wrap or cover with gold or silver powder also causes sparks...