Service Manual
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Precaution 2. Disassembly and Reassembly 5. Alignment and Adjustments 6. MICROWAVE OVEN MW1150WA SERVICE Manual MICROWAVE OVEN CONTENTS 1. Exploded Views and Parts List 8. Trouble 7. PCB Diagrams 9. Schematic Diagrams SEA Specifications 3. Operating Instructions 4.
Precaution 2. Disassembly and Reassembly 5. Alignment and Adjustments 6. MICROWAVE OVEN MW1150WA SERVICE Manual MICROWAVE OVEN CONTENTS 1. Exploded Views and Parts List 8. Trouble 7. PCB Diagrams 9. Schematic Diagrams SEA Specifications 3. Operating Instructions 4.
Service Manual
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... 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 source, and make repairs as necessary... 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 released to the owner. (e) A Microwave leakage check to verify compliance with the Federal performance standard...
... 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 source, and make repairs as necessary... 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 released to the owner. (e) A Microwave leakage check to verify compliance with the Federal performance standard...
Service Manual
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...rating for the Interlock switches, described above. might insert objects and contact dangerous voltages. Service technicians should be sure to microwave radiation, as well as the Interlock Monitor Switch. Any design changes or additions will void the manufacturer's warranty.10.Always...interlock monitor switch. 12. Some semiconductor ("solid state") devices are correctly installed. 15. Be sure that are replaced. Although the microwave oven is blown by the Interlock Monitor Switch: Replace all solid-state heat sinks are easily damaged by touching a known earth ground....
...rating for the Interlock switches, described above. might insert objects and contact dangerous voltages. Service technicians should be sure to microwave radiation, as well as the Interlock Monitor Switch. Any design changes or additions will void the manufacturer's warranty.10.Always...interlock monitor switch. 12. Some semiconductor ("solid state") devices are correctly installed. 15. Be sure that are replaced. Although the microwave oven is blown by the Interlock Monitor Switch: Replace all solid-state heat sinks are easily damaged by touching a known earth ground....
Service Manual
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.... 4-5 Replacement of Drive Motor 1. Disconnect the oven from cavity. 2. When 20A fuse blows out by nipper. 4. When the above three switches operate properly, check if any other part such as to the drive motor. 9. Do the microwave leakage test. 4-4 Replacement of interlock monitor switch failure... so as the control circuit board, blower motor or high voltage transformer is not mounted properly, microwave energy may leak from the space between the inner door surface and oven front surface. Remove the drive motor and the coupler. 7. Drive Motor Cover Drive Motor Base...
.... 4-5 Replacement of Drive Motor 1. Disconnect the oven from cavity. 2. When 20A fuse blows out by nipper. 4. When the above three switches operate properly, check if any other part such as to the drive motor. 9. Do the microwave leakage test. 4-4 Replacement of interlock monitor switch failure... so as the control circuit board, blower motor or high voltage transformer is not mounted properly, microwave energy may leak from the space between the inner door surface and oven front surface. Remove the drive motor and the coupler. 7. Drive Motor Cover Drive Motor Base...
Service Manual
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...1. Reverse the meter leads and read infinite. 5-5 High Voltage Diode 1. The relays are located on the PCB Ass'y. Operate the microwave oven with the meter set at the highest resistance scale, measure across the diode terminals. When mounting the Latch Body to high. 3. ...after the start pad is pressed. 5-7 Adjustment of the relays after adjustment is charged, a normal capacitor shows continuity for play in the oven. 5-4 High Voltage Capacitor 1. No specific adjustment during installation of all together). A shorted capacitor will be sure to Latch Body, consult the...
...1. Reverse the meter leads and read infinite. 5-5 High Voltage Diode 1. The relays are located on the PCB Ass'y. Operate the microwave oven with the meter set at the highest resistance scale, measure across the diode terminals. When mounting the Latch Body to high. 3. ...after the start pad is pressed. 5-7 Adjustment of the relays after adjustment is charged, a normal capacitor shows continuity for play in the oven. 5-4 High Voltage Capacitor 1. No specific adjustment during installation of all together). A shorted capacitor will be sure to Latch Body, consult the...
Service Manual
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...needed : * Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm) * One glass thermometer with accurate equipment. 1. Set the oven to 10.5°C at 'HIGH'. Low voltage will give you the water temperature rise. (T) 6. Output Power = 4.187 x 1000 ... for 41seconds exactly. (3 seconds included as a holding time of Magnetron 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 magnetron oscillation:) 4. This will lower the magnetron...
...needed : * Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm) * One glass thermometer with accurate equipment. 1. Set the oven to 10.5°C at 'HIGH'. Low voltage will give you the water temperature rise. (T) 6. Output Power = 4.187 x 1000 ... for 41seconds exactly. (3 seconds included as a holding time of Magnetron 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 magnetron oscillation:) 4. This will lower the magnetron...
Service Manual
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... moving the probe in the center of the oven. 2) Start to operate the oven and measure the leakage by its manufacturer. CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for Microwave Leakage 1. 5-10 Procedure for the measured values...Procedure 5-13-1 Record keeping and notification after measurement 1) After adjustment and repair of a radiarion preventing device, make a repair record for Measurement of Microwave Energy Leakage 1) Pour 275±15cc of 20±5° C(68±9° F) water in a beaker which is more than 4 mW...
... moving the probe in the center of the oven. 2) Start to operate the oven and measure the leakage by its manufacturer. CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for Microwave Leakage 1. 5-10 Procedure for the measured values...Procedure 5-13-1 Record keeping and notification after measurement 1) After adjustment and repair of a radiarion preventing device, make a repair record for Measurement of Microwave Energy Leakage 1) Pour 275±15cc of 20±5° C(68±9° F) water in a beaker which is more than 4 mW...
Service Manual
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...CAPACITOR. 4. ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP. 6-1 Electrical Malfunction SYMPTOM CAUSE CORRECTIONS Oven is blown. 2. Open thermal cutout (Magnetron) 3. Shorted lead wire harness Fuse is dead. Shorted HVTransformer (NOTE2) Check ...Check continuity of , Secondary interlock monitor, power relay, door sensing switch. Fuse is defective. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) 1. Shorted or open membrane panel 4. Defective high voltage components H.V.Transformer H.V. CHECK...
...CAPACITOR. 4. ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP. 6-1 Electrical Malfunction SYMPTOM CAUSE CORRECTIONS Oven is blown. 2. Open thermal cutout (Magnetron) 3. Shorted lead wire harness Fuse is dead. Shorted HVTransformer (NOTE2) Check ...Check continuity of , Secondary interlock monitor, power relay, door sensing switch. Fuse is defective. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) 1. Shorted or open membrane panel 4. Defective high voltage components H.V.Transformer H.V. CHECK...
Service Manual
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.... 1. Oven does not operate and return to cook food. 1. Loud buzzing noise can program but timer does not start. 1. Replace turntable motor. Wrap thinner parts of magnetron filament circuit. (Intermittent oscillation)) 3. Fan motor turns on H.V.Transformer 3. Microwave output is...switch. it starts to its characteristics. Defective secondary interlock S/W Adjust door and interlock switches. Misadjustment or loose wiring of microwave due to operate. Uneven cooking Uneven intensity of secondary latch switch Adjust door and latch switches. 2. Turntable motor does...
.... 1. Oven does not operate and return to cook food. 1. Loud buzzing noise can program but timer does not start. 1. Replace turntable motor. Wrap thinner parts of magnetron filament circuit. (Intermittent oscillation)) 3. Fan motor turns on H.V.Transformer 3. Microwave output is...switch. it starts to its characteristics. Defective secondary interlock S/W Adjust door and interlock switches. Misadjustment or loose wiring of microwave due to operate. Uneven cooking Uneven intensity of secondary latch switch Adjust door and latch switches. 2. Turntable motor does...