Service Manual
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Specifications 3. Schematic Diagrams SEA Disassembly and Reassembly 5. Trouble 7. Exploded Views and Parts List 8. Operating Instructions 4. PCB Diagrams 9. MICROWAVE OVEN MW1150WA SERVICE Manual MICROWAVE OVEN CONTENTS 1. Alignment and Adjustments 6. Precaution 2.
Specifications 3. Schematic Diagrams SEA Disassembly and Reassembly 5. Trouble 7. Exploded Views and Parts List 8. Operating Instructions 4. PCB Diagrams 9. MICROWAVE OVEN MW1150WA SERVICE Manual MICROWAVE OVEN CONTENTS 1. Alignment and Adjustments 6. Precaution 2.
Service Manual
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... hinges and latches, (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 cavity for 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...
... hinges and latches, (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 cavity for 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...
Service Manual
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... no cabinet openings through which people -- Design Alteration Warning: Use exact replacement parts only, i.e., only those that all of 5 mW/cm2 , Make repairs to restore all of the B+ voltage interlocks. Some semiconductor ("solid state") devices are specified in protective devices are correctly installed. 15. This product complies with the door open : Instruct the user not to servicing if the oven is operative. 3. Also, use oven until...
... no cabinet openings through which people -- Design Alteration Warning: Use exact replacement parts only, i.e., only those that all of 5 mW/cm2 , Make repairs to restore all of the B+ voltage interlocks. Some semiconductor ("solid state") devices are specified in protective devices are correctly installed. 15. This product complies with the door open : Instruct the user not to servicing if the oven is operative. 3. Also, use oven until...
Service Manual
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... circuit diagram by using screwdriver or jumper wire. Components that the power is OFF, and one of the high-voltage capacitor to to a 20A. H. 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 magnetron. V. Use replacement components that circuit breaker can operate...
... circuit diagram by using screwdriver or jumper wire. Components that the power is OFF, and one of the high-voltage capacitor to to a 20A. H. 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 magnetron. V. Use replacement components that circuit breaker can operate...
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Specifications 2-1 Table of Specifications TIMER POWER SOURCE POWER CONSUMPTION OUTPUT POWER OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT SHIPPING WEIGHT 99 MINUTES 99SECONDS 120V 60Hz, AC MICROWAVE : 1,550W FROM 110W 1100W ( 10 LEVEL POWER ) 2,450MHz OM75PH(31)ESS COOLING FAN MOTOR 2019/32(W) x 1145/64(H) x 164/1(D) 33 lbs. 36 lbs. 2.
Specifications 2-1 Table of Specifications TIMER POWER SOURCE POWER CONSUMPTION OUTPUT POWER OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT SHIPPING WEIGHT 99 MINUTES 99SECONDS 120V 60Hz, AC MICROWAVE : 1,550W FROM 110W 1100W ( 10 LEVEL POWER ) 2,450MHz OM75PH(31)ESS COOLING FAN MOTOR 2019/32(W) x 1145/64(H) x 164/1(D) 33 lbs. 36 lbs. 2.
Service Manual
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... back panel of fan motor assembly. 7. Take out the magnetron very carefully. 6. Remove screws securing the magnetron to pull out from hole of High Voltage Transformer 1. Remove the oven lamp by rotating to the wave guide. 5. Remove a screw securing air cover. 3. Disassembly and Reassembly 4-1 Replacement of Magnetron, Motor Assembly and Lamp Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all the leads. 3. Remove the air cover. 4. Remove tow from the magnetron and lamp. 2. Remove the mounting...
... back panel of fan motor assembly. 7. Take out the magnetron very carefully. 6. Remove screws securing the magnetron to pull out from hole of High Voltage Transformer 1. Remove the oven lamp by rotating to the wave guide. 5. Remove a screw securing air cover. 3. Disassembly and Reassembly 4-1 Replacement of Magnetron, Motor Assembly and Lamp Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all the leads. 3. Remove the air cover. 4. Remove tow from the magnetron and lamp. 2. Remove the mounting...
Service Manual
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4-3 Replacement of Door Assembly 4-3-1 Removal of Key Door & Spring Remove pin hinge from Door "E" Detach spring from Door "E" and key door. Then remove the door assembly. Be careful when handling Door "C" because it is fragile. Insertion depth of the thin metal plate should be 0.1mm or less. 4-3-3 Removal of Door "C" Insert flat screw driver into the gap between Door "E" and Door "A" until you hear the 'tick' sound. 1. Door "E" Door "E" Key Door Spring Door "A" Door "C" 4-3-2 Removal of Door "E" Following the procedure as...
4-3 Replacement of Door Assembly 4-3-1 Removal of Key Door & Spring Remove pin hinge from Door "E" Detach spring from Door "E" and key door. Then remove the door assembly. Be careful when handling Door "C" because it is fragile. Insertion depth of the thin metal plate should be 0.1mm or less. 4-3-3 Removal of Door "C" Insert flat screw driver into the gap between Door "E" and Door "A" until you hear the 'tick' sound. 1. Door "E" Door "E" Key Door Spring Door "A" Door "C" 4-3-2 Removal of Door "E" Following the procedure as...
Service Manual
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... power source. 2. Remove screws securing the drive motor to the drive motor. 9. Connect all the lead wires from the drive motor. 5. Drive Motor Cover Drive Motor Base Plate Take out the glass tray, guide roller from the space between the inner door surface and oven front surface. If the door assembly is defective. 4-5 Replacement of Drive Motor 1. Screw the drive motor cover to remount it and follow the instructions below for proper alignment. 2. When mounting...
... power source. 2. Remove screws securing the drive motor to the drive motor. 9. Connect all the lead wires from the drive motor. 5. Drive Motor Cover Drive Motor Base Plate Take out the glass tray, guide roller from the space between the inner door surface and oven front surface. If the door assembly is defective. 4-5 Replacement of Drive Motor 1. Screw the drive motor cover to remount it and follow the instructions below for proper alignment. 2. When mounting...
Service Manual
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... repair work is cleaned sufficiently so that the holes on the Plastic Fastener. When installing new membrane key board, make sure that any static electric charge ini your body and never touch the control circult. 2. Screw Screw 4-6-3 Removal of P.C.B Assembly 1. Therefore, applying hot air such as its mounting tabs will be avoided. Control box 4-6-2 Removal of Window Display & Membrane Panel 1. Disconnect the connectors from the Ass'y control box. 4. 4-6 Replacement...
... repair work is cleaned sufficiently so that the holes on the Plastic Fastener. When installing new membrane key board, make sure that any static electric charge ini your body and never touch the control circult. 2. Screw Screw 4-6-3 Removal of P.C.B Assembly 1. Therefore, applying hot air such as its mounting tabs will be avoided. Control box 4-6-2 Removal of Window Display & Membrane Panel 1. Disconnect the connectors from the Ass'y control box. 4. 4-6 Replacement...
Service Manual
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... at the high voltage terminals during any oven components or wiring, always unplug the oven from the circuit by disconnecting its power source and discharge the high voltage capacitor. 5-1 High Voltage Transformer 1. A continuity check across the magnetron filament terminals should read open. Continuity checks can indicate only an open filament or shorted magnetron : 2. 5. Filament Terminals Primary Terminals Secondary Terminal...
... at the high voltage terminals during any oven components or wiring, always unplug the oven from the circuit by disconnecting its power source and discharge the high voltage capacitor. 5-1 High Voltage Transformer 1. A continuity check across the magnetron filament terminals should read open. Continuity checks can indicate only an open filament or shorted magnetron : 2. 5. Filament Terminals Primary Terminals Secondary Terminal...
Service Manual
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... the door by disconnecting its leads. 2. Set the power level set at the highest resistance scale, measure across the diode terminals. Make sure that the gap between each terminal and chassis should be sure to use the correct part number for a short time, and then indicates 9M . 3. Reconnect to the oven assembly. Completely tighten the screws holding the Latch Body to Monitor switch and...
... the door by disconnecting its leads. 2. Set the power level set at the highest resistance scale, measure across the diode terminals. Make sure that the gap between each terminal and chassis should be sure to use the correct part number for a short time, and then indicates 9M . 3. Reconnect to the oven assembly. Completely tighten the screws holding the Latch Body to Monitor switch and...
Service Manual
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...-T2) To : Room Temperature Mc : Cylindrical borosilicate glass weight 7. The output power of the cooking tray. Output Power = 4.187 x 1000 x T+0.55xMcx(T2 -T0) 38 38 : Heating Time (sec) 4.187 : Coefficient 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. Subtract T1 from T2. Additional...
...-T2) To : Room Temperature Mc : Cylindrical borosilicate glass weight 7. The output power of the cooking tray. Output Power = 4.187 x 1000 x T+0.55xMcx(T2 -T0) 38 38 : Heating Time (sec) 4.187 : Coefficient 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. Subtract T1 from T2. Additional...
Service Manual
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... its manufacturer. Set survey meter dual ranges to the cabinet door. CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by using a microwave energy survey meter. 3) Set survey meter with dual ranges to 2,450MHz. 4) When measuring the leakage, always use the 2 inch spacer cone with the probe. Remove the outer panel. 2. Start the oven at the base...
... its manufacturer. Set survey meter dual ranges to the cabinet door. CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by using a microwave energy survey meter. 3) Set survey meter with dual ranges to 2,450MHz. 4) When measuring the leakage, always use the 2 inch spacer cone with the probe. Remove the outer panel. 2. Start the oven at the base...
Service Manual
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... cutout (Magnetron) 3. Shorted HVCapacitor 5. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT. 3. Shorted or open membrane panel 4. DISCHARGE THE HIGH VOLTAGE CAPACITOR. 4. Oven does not accept key input (Program) 1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. 2. Defective Secondary latch switch (NOTE 1) 3. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC DISCHARGE MAY DAMAGE IT. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) 1. Replace...
... cutout (Magnetron) 3. Shorted HVCapacitor 5. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT. 3. Shorted or open membrane panel 4. DISCHARGE THE HIGH VOLTAGE CAPACITOR. 4. Oven does not accept key input (Program) 1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. 2. Defective Secondary latch switch (NOTE 1) 3. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC DISCHARGE MAY DAMAGE IT. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.) 1. Replace...
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... motor. Aging of magnetron filament circuit. (Intermittent oscillation)) 3. Fan motor turns on H.V.Transformer 3. Metallic ware or cooking dishes touching on 1. Uneven cooking Uneven intensity of the food with metallic trimming. Wrap thinner parts of microwave due to Defective Ass'y PCB the plugged in Loose wiring of door sensing switch Check wire of thermal cutout(Magnetron) Adjust door and latch switches. Open or loose wiring of Secondary interlock switch 2. Loose fan and fan motor 2. Oven stops operation during cooking 1. it starts to cook food. 1. Oven...
... motor. Aging of magnetron filament circuit. (Intermittent oscillation)) 3. Fan motor turns on H.V.Transformer 3. Metallic ware or cooking dishes touching on 1. Uneven cooking Uneven intensity of the food with metallic trimming. Wrap thinner parts of microwave due to Defective Ass'y PCB the plugged in Loose wiring of door sensing switch Check wire of thermal cutout(Magnetron) Adjust door and latch switches. Open or loose wiring of Secondary interlock switch 2. Loose fan and fan motor 2. Oven stops operation during cooking 1. it starts to cook food. 1. Oven...
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Exploded Views and Parts List 7-1 Exploded Views MD11 MD04 MD05 MD03 MD02 MD06 MD07 MD10 MM01 MM171 MM55 MM34 MM07 MM06 MM03 MD01 MM10 MM17 MC06 MC03 MC02 MC05 MC04 MM16 MM22 MM132 MM28 MC01 MM13 MB01 MB03 MB05 MM102 MM14 MB02 MM09 MB04 MB08 MM29 MM30 MC07 MC13 MM27 MM18 MM19 MM20 MM31 MM08 7.
Exploded Views and Parts List 7-1 Exploded Views MD11 MD04 MD05 MD03 MD02 MD06 MD07 MD10 MM01 MM171 MM55 MM34 MM07 MM06 MM03 MD01 MM10 MM17 MC06 MC03 MC02 MC05 MC04 MM16 MM22 MM132 MM28 MC01 MM13 MB01 MB03 MB05 MM102 MM14 MB02 MM09 MB04 MB08 MM29 MM30 MC07 MC13 MM27 MM18 MM19 MM20 MM31 MM08 7.
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... DE72-00138A BODY-LATCH PP,WHT,NC2000(0.6/0.8/1.2),BUTTON-TYPE MB08 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-NO MM01 DE70-00185A PANEL-OUTER SECC,T0.6,COATING,MW1255WA(1.2CUFT),- MM03 DE39-00278A WIRE HARNESS-A MW1255WA,-,120V60HZ,-,-,-,-,NC2000-1.2 2-TCO MM06 DE96-00100A ASSY-MOTOR FAN SMF-NC2UA1,120V60HZ,2800RPM,SJ0390,10MM MM07 DE39-20146E ASSY POWER CORD MSP-36,-,SPT...
... DE72-00138A BODY-LATCH PP,WHT,NC2000(0.6/0.8/1.2),BUTTON-TYPE MB08 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-NO MM01 DE70-00185A PANEL-OUTER SECC,T0.6,COATING,MW1255WA(1.2CUFT),- MM03 DE39-00278A WIRE HARNESS-A MW1255WA,-,120V60HZ,-,-,-,-,NC2000-1.2 2-TCO MM06 DE96-00100A ASSY-MOTOR FAN SMF-NC2UA1,120V60HZ,2800RPM,SJ0390,10MM MM07 DE39-20146E ASSY POWER CORD MSP-36,-,SPT...
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...-10082H DE60-10082H DE60-10082H DE60-10082H DE60-10098A DE60-10195A DE60-10088A DE60-10098A Description SCREW-WASHER SCREW-WASHER SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-ASSY TAP TITE SCREW-STAR POLE SCREW-TAP PH SCREW-ASSY TAP TITE Specification PH,PI5,L10,SWRCH18A,ZP2,2S,-,PH,PI5,L10,SWRCH18A,ZP2,2S,-,2S-4X12,TOOTHED 2S...TC,M4X8,SWRCH18A,ZPC2,GLD,W Q'ty Remark 4 MGT 4 TNS-HV 4 B-PLTE 2 BD-LAT 1 CN-BOX 1 CV/AIR 1 CVT-TCO 2 MO-FAN 1 P-C-EA 2 PN/OUT 1 S-M-EA 1 TCO 1 M/DRIV 2 O/PANEL 1 PCB 1 HVC 7-4 Standard Parts List Code No.
...-10082H DE60-10082H DE60-10082H DE60-10082H DE60-10098A DE60-10195A DE60-10088A DE60-10098A Description SCREW-WASHER SCREW-WASHER SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-A SCREW-ASSY TAP TITE SCREW-STAR POLE SCREW-TAP PH SCREW-ASSY TAP TITE Specification PH,PI5,L10,SWRCH18A,ZP2,2S,-,PH,PI5,L10,SWRCH18A,ZP2,2S,-,2S-4X12,TOOTHED 2S...TC,M4X8,SWRCH18A,ZPC2,GLD,W Q'ty Remark 4 MGT 4 TNS-HV 4 B-PLTE 2 BD-LAT 1 CN-BOX 1 CV/AIR 1 CVT-TCO 2 MO-FAN 1 P-C-EA 2 PN/OUT 1 S-M-EA 1 TCO 1 M/DRIV 2 O/PANEL 1 PCB 1 HVC 7-4 Standard Parts List Code No.
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... WHT DOOR SENSING SWITCH BOTTOM MONITOR SWITCH CENTER BLK WHT RED WHT POWER RELAY MAGNETRON HIGH VOLTAGE DIODE FA F RED TO CHASSIS HIGH VOLTAGE CAPACITOR RED RED RED HIGH VOLTAGE TRANSFORMER SYMBOL ORG WHT BLK BLU RED COLOR ORANGE WHITE BLACK BLUE RED Schematic Diagrams 9-1 Schematic Diagrams NOTE: CIRCUIT SHOWN WITH DOOR IS OPENED POSITION. NOTE: FOR SERVICE REPLACEMENT USE 16 GA 105° C THERMOPLASTIC COVERED WIRE...
... WHT DOOR SENSING SWITCH BOTTOM MONITOR SWITCH CENTER BLK WHT RED WHT POWER RELAY MAGNETRON HIGH VOLTAGE DIODE FA F RED TO CHASSIS HIGH VOLTAGE CAPACITOR RED RED RED HIGH VOLTAGE TRANSFORMER SYMBOL ORG WHT BLK BLU RED COLOR ORANGE WHITE BLACK BLUE RED Schematic Diagrams 9-1 Schematic Diagrams NOTE: CIRCUIT SHOWN WITH DOOR IS OPENED POSITION. NOTE: FOR SERVICE REPLACEMENT USE 16 GA 105° C THERMOPLASTIC COVERED WIRE...