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Summary of Contents for Samsung M1711NR

  • Page 1: Table Of Contents

    MICROWAVE OVEN M1711NR SERVICE Manual MICROWAVE OVEN CONTENTS 1. Precaution 2. Specifications 3. Operating Instructions 4. Disassembly and Reassembly 5. Alignment and Adjustments 6. Troubleshooting 7. Exploded Views and Parts List 8. Schematic Diagrams...
  • Page 2 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 (c) Before turning on microwave power operated with the door open. for any service test or inspection within (b) Make the following safety checks on the microwave generating all ovens to be serviced before activating...
  • Page 3: Precaution

    1. Precaution Follow these special safety precautions. Although the microwave oven is completely safe during ordinary use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as potentially lethal high voltages and currents. 1-1 Safety precautions ( All repairs should be done in accordance 11.
  • Page 4 1-2 Special Servicing Precautions (Continued) 17. When checking the continuity of the witches or transformer, always make sure that the power is OFF, and one of the lead wires is disconnected. 18. Components that are critical for safety are indicated in the circuit diagram by shading, or .
  • Page 5: Specifications

    2. Specifications 2-1 Table of Specifications TIMER 35 MINUTES POWER SOURCE 230V ~ 50Hz POWER CONSUMPTION MICROWAVE : 1,150W OUTPUT POWER 100W / 800W (IEC-705 TEST PROCEDURE) OPERATING FREQUENCY 2,450MHz MAGNETRON OM75S(31) COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 489(W) x 275(H) x 374(D) OVEN DIMENSIONS 306(W) x 211(H) x 320(D) SHIPPING DIMENSIONS...
  • Page 6: Operating Instructions

    3. Operating Instructions 3-1 Control Panel 3-2 Features & External Views VENTILATION HOLES LIGHT VARIABLE COOKING POWER CONTROL KNOB TIMER KNOB COUPLER TURNTABLE ROLLER RING OPEN DOOR PUSH BUTTON SAFETY DOOR LATCHES DOOR INTERLOCK HOLES 206mm 342mm 374mm 489mm - 4 -...
  • Page 7: Disassembly And Reassembly

    4. 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 of which are contained in one assembly). 1. Disconnect all lead wires from the magnetron and lamp. 2.
  • Page 8 4-3 Replacement of Door Assembly 4-3-1 Removal of Door "C" Insert flat screwdriver into the gap between Door "A" and Door "C" to remove Door "C". Be careful when handling Door "C" because it is fragile. Then remove the door assembly. Door "A"...
  • Page 9 4-3-4 Reassembly Test After replacement of the defective component parts of the door, reassemble it and follow the instructions below for proper installation and adjustment so as to prevent an excessive microwave leakage. 1. When mounting the door to the oven, be sure to adjust the door parallel to the bottom line of the oven face plate by moving the upper hinge and lower hinge in the direction necessary for proper alignment.
  • Page 10 4-6 Replacement of Control Circuit Board 4-6-1 Removal of Control Box Assembly 1. Disconnect the connectors from the control box assembly. 2. Remove screws securing the control box assembly. 3. Remove the knobs of the control box A'ssy. SCREWS CONTROL-BOX 4.
  • Page 11: Alignment And Adjustments

    5. Alignment and Adjustments PRECAUTION 1. High voltage is present at the high voltage terminals during any cook cycle. 2. It is neither necessary nor advisable to attempt measurement of the high voltage. 3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the high voltage capacitor.
  • Page 12 5-3 High Voltage Capacitor 1. Check continuity of the capacitor with the meter set at the highest resistance scale. Ω 2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9M 3. A shorted capacitor will show continuous continuity. Ω...
  • Page 13 5-6 Output Power of Magnetron CAUTION MICROWAVE RADIATION PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY. The output power of the magnetron can be measured by performing a water temperature rise test. Equipment needed : * Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm) * One glass thermometer with mercury column...
  • Page 14 5-8 Procedure for Measurement of Microwave Energy Leakage 1) Pour 275±15cc of 20±5° C(68±9° F) water in a beaker which 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 using a microwave energy survey meter.
  • Page 15: Troubleshooting

    6. Troubleshooting WARNING FOR HIGH VOLTAGE 4000 VOLTS EXIST AT THE HIGH VOLTAGE AREA. DO NOT OPERATE THE OVEN WITH CABINET PARTS REMOVED. DO NOT REMOVE THE CABINET PARTS IF THE POWER SUPPLY CORD IS PLUGGED IN THE WALL OUTLET. UNPLUG THE POWER CORD BEFORE SERVICING. 6-1 Electrical Malfunction Parts Cause...
  • Page 16 6-1 Electrical Malfunction(continued) part Cause Diagnosis Remedy To increase the oven 1) Too small If a small amount of food is heated for a long time, water into water into a load period of microwave may turn off during operation. the oven.
  • Page 17 6-2 Unsatisfactory Cooking Parts Cause Diagnosis Remedy 1) Open cathode of Check the terminals with a multimeter to see Replace magnetron. magnetron if the heater circuit is open. Check the H. V. Diode for continuity in the reverse and 2) Defective normal directions using megger.
  • Page 18: Exploded Views And Parts List

    7. Exploded Views and Parts List 7-1 Exploded Views D006 D005 D004 D003 D002 M001 M029 D011 D015 W002 D007 M015 M019 M014 M017 D049 M020 C032 M022 C082 M023 C024 M157 M036 M051 M099 C005 B006 M035 B001 C025 M049 M038 M037...
  • Page 19 7-2 Main Parts List Code No. Description Specification Q'ty Remark B001 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-N B004 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-N B002 3405-001032 SWITCH-MICRO 125/250VAC,16A,200GF,SPDT B006 DE72-00138A BODY-LATCH NC2000(0.6/0.8/1.2),PP,-,-,-, B009 DE66-00088A LEVER-SWITCH NC2000(0.6/0.8/1.2),PP,-,-, B018 DE96-00115C ASSY BODY LATCH CE2611N,NC2000(BUTTON) M001 DE70-00184P PANEL-OUTER MW850WA,C/STEEL,T0.5,-,-,-,P M014 3601-001126 FUSE-CARTRIDGE...
  • Page 20 7-3 Control & Door Parts List Code No. Description Specification Q'ty Remark C001 DE94-00492J ASSY CONTROL-PANEL 230V50Hz,M1711NR/BWT, C005 DE72-00176L CONTROL-PANEL M1711NR/BWT,ABS,-,-,-,-,PU C006 DE61-70076A SPRING-BUTTON -,HSWR,PI0.6,-,OD19,L23,5T C007 DE67-00120A BUTTON-PUSH N8A77(CHINA),ABS,-,-,P/WHT,- C024 DE45-10074H TIMER TMFK35MTM1,-,21V,-,50Hz,-,-,STL BK C025 DE64-00276A KNOB N8A77,ABS,-,-,-,-,P/WHT(W9501),-,N8 C032 3501-000309...
  • Page 21 7-4 Standard Parts List Code No. Description Specification Q'ty Remark DE60-10012A SCREW-TAP TITE -,SWR10,M4,L10,TH,+,-,3,ZPC2,- N/P EARTH DE60-10012A SCREW-TAP TITE -,SWR10,M4,L10,TH,+,-,3,ZPC2,- P/C EARTH DE60-10012A SCREW-TAP TITE -,SWR10,M4,L10,TH,+,-,3,ZPC2,- PCB EARTH DE60-10012A SCREW-TAP TITE -,SWR10,M4,L10,TH,+,-,3,ZPC2,- TCO-S/W DE60-10063A SCREW-TAP TH -,-,FEFN,-,TH,M4,-,L12,-,- O/PANEL DE60-10080B SCREW-WASHER -,2S,SWRCH18A,ZP2,PH,PI5,-,L10,-,- DE60-10080B SCREW-WASHER...
  • Page 22: Schematic Diagrams

    8. Schematic Diagrams 8-1 Schematic Diagrams (This Document can not be used without Samsung's authorization) MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS HIGH VOLTAGE CAPACITOR H.V.FUSE SYMBOL COLOR BROWN BLACK BLUE HIGH VOLTAGE TRANSFORMER - 2 0 -...
  • Page 23 ELECTRONICS This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. ©Samsung Electronics Co., Ltd. May 2003 Printed in Korea Code No. : DE68-03171A...
  • Page 24 Code [M002] M1711NR/BWT Desc Model Data not found! Spec D005 D006 D004 M001 D002 D003 M015 M029 D015 M019 M014 D007 M017 W002 M020 M022 D011 M036 M023 D049 C032 M157 M051 M099 B006 B001 M035 C005 B018 M049 M037...