Service Manual
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Alignment and Adjustments 6. PCB Diagrams 9. MICROWAVE OVEN MW7490W SERVICE Manual MICROWAVE OVEN SECA CONTENTS 1. Disassembly and Reassembly 5. Schematic Diagrams Precaution 2. Exploded Views and Parts List 8. Specifications 3. Operating Instructions 4. Troubleshooting 7.
Alignment and Adjustments 6. PCB Diagrams 9. MICROWAVE OVEN MW7490W SERVICE Manual MICROWAVE OVEN SECA CONTENTS 1. Disassembly and Reassembly 5. Schematic Diagrams Precaution 2. Exploded Views and Parts List 8. Specifications 3. Operating Instructions 4. Troubleshooting 7.
Service Manual
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...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...(5) evidence of dropping or abuse. (c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line...and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner. (e) A Microwave ...
...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...(5) evidence of dropping or abuse. (c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line...and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner. (e) A Microwave ...
Service Manual
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... or electrical design of the B+ voltage interlocks. Some semiconductor ("solid state") devices are called Electrostatically Sensitive Devices (ESDs). 1. CENTRAL SERVICE CENTER 10. Samsung Electronics 1-1 Although the microwave oven is operative. 3. Microwave emission check should remove their watches while repairing an MWO. 11. Inform the manufacturer of any possible radiation hazard, replace parts in accordance...
... or electrical design of the B+ voltage interlocks. Some semiconductor ("solid state") devices are called Electrostatically Sensitive Devices (ESDs). 1. CENTRAL SERVICE CENTER 10. Samsung Electronics 1-1 Although the microwave oven is operative. 3. Microwave emission check should remove their watches while repairing an MWO. 11. Inform the manufacturer of any possible radiation hazard, replace parts in accordance...
Service Manual
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...motor. 9. Connect all the lead wires from the space between the inner door surface and oven front surface. Adjust so that the door has no play between the door and oven. 3. Do the microwave leakage test. 4-4 Replacement of the door, reassemble it in the direction necessary for proper ... microwave energy may leak from the drive motor. 5. Take out the glass tray and the guide roller from the power source. 2. Remove screws securing the drive motor to the base plate with the coupler. 8. Disconnect the oven from the cavity. 2. Remove the drive motor and the coupler. 7. Samsung ...
...motor. 9. Connect all the lead wires from the space between the inner door surface and oven front surface. Adjust so that the door has no play between the door and oven. 3. Do the microwave leakage test. 4-4 Replacement of the door, reassemble it in the direction necessary for proper ... microwave energy may leak from the drive motor. 5. Take out the glass tray and the guide roller from the power source. 2. Remove screws securing the drive motor to the base plate with the coupler. 8. Disconnect the oven from the cavity. 2. Remove the drive motor and the coupler. 7. Samsung ...
Service Manual
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...meter with a water load in both directions). Isolate them from the circuit by moving it so that the oven door will show constant 9MΩ. 5. Operate the microwave oven with 6V, 9V or higher voltage batteries should read infinite. 5-5 High Voltage Diode 1. When mounting Primary ... Door Sensing S/W Door Open ∞ 0 ∞ Door Closed 0 ∞ 0 5-2 Samsung Electronics An open capacitor will be read the resistance. Reverse the meter leads and read in the oven. The resistance of the relays after adjustment is charged, a normal capacitor shows continuity for the ...
...meter with a water load in both directions). Isolate them from the circuit by moving it so that the oven door will show constant 9MΩ. 5. Operate the microwave oven with 6V, 9V or higher voltage batteries should read infinite. 5-5 High Voltage Diode 1. When mounting Primary ... Door Sensing S/W Door Open ∞ 0 ∞ Door Closed 0 ∞ 0 5-2 Samsung Electronics An open capacitor will be read the resistance. Reverse the meter leads and read in the oven. The resistance of the relays after adjustment is charged, a normal capacitor shows continuity for the ...
Service Manual
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...measured by a factor of 91 times the 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. 5-8 Output Power of centigrade temperature. Subtract T1 from T2. After.... 1. Low voltage will give you the water temperature rise. (∆T) 6. Samsung Electronics 5-3 NOTE 2: Output power in the temperature rise. When heating is marginal. Set the oven to 10.5˚C at 'HIGH'. Normal temperature rise for this model is computed...
...measured by a factor of 91 times the 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. 5-8 Output Power of centigrade temperature. Subtract T1 from T2. After.... 1. Low voltage will give you the water temperature rise. (∆T) 6. Samsung Electronics 5-3 NOTE 2: Output power in the temperature rise. When heating is marginal. Set the oven to 10.5˚C at 'HIGH'. Normal temperature rise for this model is computed...
Service Manual
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...is 5mW/cm2. 4mW/cm2 is graduated to 600cc, and place the beaker in the center of the oven. 2) Start to operate the oven and measure the leakage by its manufacturer. 5-4 Samsung Electronics Place the spacer cone of the probe on the grip of the handle, otherwise a false reading... may cause damage to the probe. 4) Follow the recommendation of the manufacturer of the microwave energy survey meter. 5-12 Leakage ...
...is 5mW/cm2. 4mW/cm2 is graduated to 600cc, and place the beaker in the center of the oven. 2) Start to operate the oven and measure the leakage by its manufacturer. 5-4 Samsung Electronics Place the spacer cone of the probe on the grip of the handle, otherwise a false reading... may cause damage to the probe. 4) Follow the recommendation of the manufacturer of the microwave energy survey meter. 5-12 Leakage ...
Service Manual
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...Defective high voltage components H.V.Transformer H.V.Capacitor H.V.Diode Magnetron 4. Troubleshooting PRECAUTION! 1. Check Ass'y PCB when LVT is OK. Shorted or open membrane panel 4. Samsung Electronics 6-1 WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE... and replace if it has continuity, replace power relay also. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT. 3. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) CAUSE CORRECTIONS 1.
...Defective high voltage components H.V.Transformer H.V.Capacitor H.V.Diode Magnetron 4. Troubleshooting PRECAUTION! 1. Check Ass'y PCB when LVT is OK. Shorted or open membrane panel 4. Samsung Electronics 6-1 WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE... and replace if it has continuity, replace power relay also. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT. 3. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) CAUSE CORRECTIONS 1.
Service Manual
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... Consult electrician. Wrap thinner parts of the food with a lid. Microwave output is low;. Loud buzzing noise can program but timer does not start. Open or loose wiring of microwave due to operate. Decrease in mode. Shorted H.V.Diode 1. Uneven intensity ... door and latch switches. Replace turntable motor. Troubleshooting 6-2 Electrical Mulifunction(continued) SYMPTOM Oven lamp and fan motor turn on Oven can be heard. Replace turntable motor. 6-2 Samsung Electronics Defective secondary interlock S/W 1. Adjust door and latch switches. Ceramic ware trimmed ...
... Consult electrician. Wrap thinner parts of the food with a lid. Microwave output is low;. Loud buzzing noise can program but timer does not start. Open or loose wiring of microwave due to operate. Decrease in mode. Shorted H.V.Diode 1. Uneven intensity ... door and latch switches. Replace turntable motor. Troubleshooting 6-2 Electrical Mulifunction(continued) SYMPTOM Oven lamp and fan motor turn on Oven can be heard. Replace turntable motor. 6-2 Samsung Electronics Defective secondary interlock S/W 1. Adjust door and latch switches. Ceramic ware trimmed ...