Samsung G2613C Service manual
Contents
1. ASSY CHOKE P C B CAVITY TIMER INRUSH Sasse sen Feasesen Tc0 SWITCH 3h SECONDARY Tn RELAY dy eo 5 2 E T BLU EE BLU SEES WHT ED 8 0 230V 50Hz pM 2 H V FUSE 4 2 Sf vus i 5 ae 5 0 08 0 754 V G 4 a BRN 24 5 62 14 WHT ov 08 4A G 3 i amp H V C 0 95uF G 1 ES 5777 wur 086 6 1 ce I 1 1 2 i o BRN NC BRN 8 ORG 7 i COM BSS SIME eg d EIS SME BRN ORG 1 PT ONL 1 e woe een S Laaa Mer BRN PRIMARY BG e om TCO SWITCH EINE swa O3 NOTE FUNCTION ROTARY MAGNETRON DOOR IS OPEND g 7777 z amp 5 EB SYMBOL COLOR amp BRN BROWN 8 5 11 5 jeu BUE ren ee een ei g g 29 un ORANGE E S WZ EET EMT SIN 5 z z i 0 8 WHT WHITE Pec C 0 ME i 8 S B BLK BLACK 30 PRIMARY SECONDARY MONTOR omy uow MWO MODE CYCEL MODE GRILL MODE LATCH LATCH SWITCH Ve VELLOW GREEN SWITCH SWITCH High Voltage Circuit MAGNETRON HIGH VOLTAGE DIODE Lye ml F HIGH VOLTAGE CAPACITOR ORG RED RE H V FUSE BRN SYMBOL COLOR m ORG ORANGE RED BRN BROWN BU BLK BLACK RED RED BLU BLUE HIGH VOLTAGE TRANSFORMER Samsung Electronics 82. 4 6 Ceramic Heater Replacement 1 Take out the outer panel Screw 2 Disconnect the connectors from the heater ceramic and wire leade Bracket 3 Remove two 3 screws securing the bracket upper to Upper the oven cavity 4 Remove one screw securing the bracket heater Ceramic Heater Bracket Heater Screw Samsung Electronics 4 3 5 Alignment and Adjustments PRECAUTION 1 High voltage is present at the high voltage terminal of the high voltage transformer 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 5 1 High Voltage Transformer 1 Remove connectors from the transformer terminals and check continuity 2 Normal resistance readings should be as follows Secondary Approx 1230 Filament oc cei nets Approx 0Q Approx 2 150 Room temperature 20 C 5 2 Magnetron 1 Continuity checks can only indicate an open filament or a shorted magnetron To diagnose an open filament or shorted magnetron 2 Isolate the magnetron from the circuit by disconnecting its leads 3 A continuity check across the magnetron filament terminals should indicate one ohm or less 4 A continuity check between each filament terminal and the magnetron case sh
3. umm MICROWAVE OVEN G2613C SER VICE m MICROWAVE OVEN CONTENTS Precaution Statements Operating Instructions Disassembly and Reassembly e Alignment and Adjustments e Troubleshooting M Exploded Views and Parts List 8 Wiring Diagrams SESA 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 A M gt 2 N All repairs should be done in accordance with the procedures described in this manual This product complies with Federal Performance Standard 21 CFR Subchapter J DHHS Microwave emission check should be performed to prior to servicing if the oven is operative If the oven operates with the door open Instruct the user not to operate the oven and contact the manufacturer and the center for devices and radiological health immediatly Notify the Central Service Center if the microwave leakage exceeds 5 mW cm Check all grounds Do not power the MWO from a 2 prong AC cord Be sure that all of the built in protective devices are replaced Restore any missing protective shields When reinstalling the chassis and its assemblies be sure to
4. 1
5. 2 1KV BK 54x35x80 20 DE91 70063A ASSY HVD V2MB PI9 0 0 05MT DE91 70061B ASSY H V FUSE THV060T 0750 H 5KV0 75A RED DE61 40017A FOOT PP A353 BLK MW5630T DE80 10003A BASE PLATE SGCC1 7 10 8 W340 L550 M745 DE31 10154A MOTOR DRIVE M2HJ49ZR02 ST 16 50 60HZ DE71 60011A COVER MGT PP T2 0 WHT M745 DE47 20033A THERMOSTAT PW 2N 80 70 125V15A 250V7 5A 1 CV TCO DE47 20161A THERMOSTAT PW2N 120 110 187223 250V 7 5A GR TCO DE39 30097B WIRE LEAD G L100 MBO45 GRILL DE62 90101A ADIABATIC UPPER S FINE INSULATION T5 0 W162 L2 DE47 70030D HEATER CERAMIC 115V 490W 260HM 6 2 DE61 50401A BRACKET HEATER ALSTER T0 5 60 70 M67G45 2 DE94 00132R ASSY CONTROL BOX G2613C XEC PURE WHT SESA 1 A DE74 20017A TRAY COOKING GLASS NEOREX RE 31 16 0D288 1 DE92 90441B ASSY GUIDE ROLLER G645C D16 5 1 DE67 60002A COUPLER PPS 5GR BRN M97G45 1 DE27 10020A COIL MC CHOKE TC 101 1 A Warning Option Parts A Electrostatically Sensitive Devices Samsung Electronics Exploded Views and Parts List 7 3 Assembly Door Parts List Ref No Parts No Description Specification Q ty Remarks D1 DE67 20186A SCREEN DOOR SAN 12 2 W354 L224 SMOG 3RD 0 7CU FT A D2 DE64 40006A DOOR KEY POM TC3005 T2 0 12GR BLK CE94 D3 DE61 70033A SPRING KEY ES HSWR10 PI0 6 D6 0 122 3 BLU D4 DE64 40322W DOOR A ABS HR0370 P WHT G2613C XEC D5 DE92 50126D ASSY DOOR E M745 BLK ASSY PURCHASIN
6. moving the upper hinge and lower hinge in the direction necessary for proper alignment 2 Adjust so that the door has no play between the inner door surface and oven front surface If the door assembly is not mounted properly microwave energy may leak from the space between the door and oven 3 Do the microwave leakage test 4 4 Replacement of Fuse 1 Disconnect the oven from the power source 2 When 15A fuse blows out by the operation of interlock monitor switch failure replace the primary interlock switch door sensing switch monitor switch and power relay 3 When the above three switches operate properly check if any other part such as the control circuit board blower motor or high voltage transformer is defective 4 5 Drive Motor Replacement 1 Take out the glass tray guide roller and coupler from cavity o 2 Turn the oven upside down to replace the drive motor 7 ia 3 Remove a screw securing the drive motor cover s 4 Disconnect all the lead wires from the drive motor o 5 Remove screws securing the drive motor to the cavity 412 6 Remove the drive motor 27 o 1 7 When replacing the drive motor be sure to remount it in E the correct position Sow 8 Connect all the leads to the drive motor 9 Screw the deive motor cover to the base plate with a screw LS Drive Motor driver 10 Remount the coupler in the correct position
7. restore all protective devices including nonmetallic control knobs and compartment covers Make sure that there are no cabinet openings through which people particularly children might insert objects and contact dangerous voltages Examples Lamp hole ventilation slots Inform the manufacturer of any oven found to have emmission in excess of 5 mW cm2 Make repairs to bring the unit into compliance at no cost to owner and try to determine cause Instruct owner not to use oven until it has been brought into compliance CENTRAL SERVICE CENTER 10 Service technicians should remove their watches while repairing an MWO Samsung Electronics 11 12 13 14 15 16 To avoid any possible radiation hazard replace parts in accordance with the wiring diagram Also use only the exact replacements for the following parts Primary and secondary interlock switches interlock monitor switch If the fuse is blown by the Interlock Monitor Switch Replace all of the following at the same time Primary door sensing switch and power relay as well as the Interlock Monitor Switch The correct adjustment of these switches is described elsewhere in this manual Make sure that the fuse has the correct rating for the particular model being repaired Design Alteration Warning Use exact replacement parts only i e only those that are specified in the drawings and parts lists of this manual This is especially importan
8. variance in the temperature rise Additional power test should be made if temperature rise is marginal NOTE 2 Output d in watts is computed by multiplying the temperature rise step E by a power factor of 91 in case of centigrade temperature 5 7 Microwave Heat Distribution Heat Evenness The microwave heat distribution can be checked indirectly by measuring the water temperature risen at certain positions in the oven 1 Prepare five beakers made of Pyrex having 100 milliliters capacity each 2 Measure exactly 100milliliters off water load with a measuring cylinder and pour it into each beaker 3 Measure the temperature of each water load Readings shall be taken to the first place of decimals 4 Put each beaker in place on the cooking tray as illustrated in figure below and start heating 5 After heating for 2 minutes measure the temperatures of water in each beaker 6 Microwave heat distribution rate can be caicviated as follows Cooking Tray Minimum Temperature Rise Heat Distribution X 100 90 Maximum Temperature Rise The result should exceed 65 5 3 Samsung Electronics Alignment and Adjustments 5 8 Procedure for Measurement of Microwave Energy Leakage 1 Pour 275 15cc of 20 5 C 68 9 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 me
9. G D6 DE64 40008B DOOR C PP T1 5 BLK CE745G D7 DE01 00003A FILM DOOR PE FILM T0 15 W142 L262 M745 D8 DE61 80005A HINGE UPPER SCP1 T2 3 ZN COATIN M745 D9 DE61 80004A HINGE LOWER SCP1 T2 3 ZN COATING M745 7 4 Assembly Control Box Parts List Ref No Parts No Description Specification Q ty Remarks C1 DE66 20281A BUTTON PUSH ABS 15g 12x37x86 WHT 3RD W D C2 DE61 70076A SPRING BUTTON HSWR PIO 6 C3 DE64 10162A KNOB ABS WHT 3RD W 2 C4 DE72 70214R CONTROL PANEL D ABS HR0370 G2613C XEC PURE WHT SESA 1 C5 DE45 10075A TIMER ASSY TMFF6OMTN1 220 240V 240 GRILL C6 3501 000309 RELAY POWER 240V 3750VA 15A 6mS 20mS C7 DE39 40545A WIRE HARNESS B 230V50HZ G635C C8 DE94 00128R ASSY CONTROL PANEL G2613C XEC PURE WHT SESA 7 5 Assembly Body Latch Parts List Ref No Parts No Description Specification Q ty Remarks B1 DE66 40001A LATCH BODY POM F20 02 40GR NTR 1 B2 3405 000178 SWITCH MICRO 250V 15A 200gf SPST NO 2 B3 3405 000175 SWITCH MICRO 250V 15A 200gf SPST NO 1 B4 DE66 90001A LEVER SWITCH P 0 M F20 02 2 6 NTR 2ND W P 1 Samsung Electronics 7 3 Exploded Views and Parts List 7 6 Standard Parts List Parts No Description Specification Q ty Remarks DE60 10012A SCREW TAP TITE TH 3 M4 L10 SWR10 ZPC2 TOOTH 1 B UPP DE60 10012A SCREW TAP TITE TH 3 M4 L10 SWR10 ZPC2 TOOTH 1 P C EA DE60 10059A SCREW TAP TH TH M4 L8 SUS410 CR 2 B HEAT DE60 10080A SCREW WASHER M5 L12 28 4 HVT DE60 10080A
10. ON PERSONNEL SHOULD NOT ALLOW EXPOSWRE 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 of 190mm One glass thermometer with mercury column NOTE Check line voltage under load Low voltage will lower the magnetron output Make all temperature and time tests with accurate equipment A Fill the one liter glass vessel with one liter of water Stir water in glass vessel with thermometer and record glass vessel s temperature as T1 10 1 C 3 After moving the water into another glass vessel place it on the center of the cooking tray Set the oven to high power and operate for 54 seconds exactly 2 seconds included as a holding time of magnetron oscillation 4 When heating is finished stir the water again with the thermometer and measure the temperature rise as T2 5 Subtract R1 from T2 This will give you the water temperature rise AT 6 The output power is obtained by the following formula M 52 3 Heating Time sec Output W 100 x AT 4 187 x 1000 x AT 4 187 Coefficient for Water Output Power 1000 Water cc 52 3 AT Temperature Rise T2 T1 7 Normal temperature rise for this model is 9 C to 11 C at HIGH NOTE 1 Variations or errors in the test procedure will cause a
11. SCREW WASHER M5 L12 28 4 MGT DE60 10082H SCREW A 2S 4X12 TOOTHED 2 B PLTE DE60 10082H SCREW A 2S 4X12 TOOTHED 2 B UPP DE60 10082H SCREW A 2S 4X12 TOOTHED 2 BD LAT DE60 10082H SCREW A 2S 4X12 TOOTHED 1 BKT GRI DE60 10082H SCREW A 2S 4X12 TOOTHED 2 CN BOX DE60 10082H SCREW A 2S 4X12 TOOTHED 1 CV AIR DE60 10082H SCREW A 2S 4X12 TOOTHED 2 MO FAN DE60 10082H SCREW A 2S 4X12 TOOTHED 5 PN OUT DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 CV TCO DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 M DRIV DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 MG TCO DE60 10195A SCREW STAR POLE TH 2 4 12 SWCH18A ZNC 2 C BACK DE60 20063A BOLT FLANGE M4 10 ZPC3 YEL MSWR 2 HI LOW DE60 20063A BOLT FLANGE M4 10 ZPC3 YEL MSWR 2 HI UPP DE60 10012A SCREW TAP TITE TH 3 M4 L10 SWR10 ZPC2 TOOTH 1 B PLATE DE60 10069A SCREW TAP TH TH M4 L10 FRFZY 1 RELAY DE60 10082H SCREW A 2S 4X12 TOOTHED 4 TIMER 7 4 Samsung Electronics 8 Schematic Diagram Wiring Diagram
12. etron the magnetron is defective 5 Poor contact of primay interlock switch 6 Open coil of H V Trans former Check if the screws are secured well to the door hinge and pressing it ON and OFF repeatedly Check the continuity of primary coil and secondary coil If there is no continuity H V Transformer is defective Replace or adjust Replace the H V Transformer 7 Shorted H V capacitor 8 Monitor fuse blown out Check the continuity of capacitor If the capacitor shorts the fuse blows Check the monitor fuse on the noise filter Replace the H V Capacitor Replace the Monitor fuse 6 3 Part Check List Symptom Related Parts Check Points Remedy Microwave H V Transformer 1 Check if the primary and secondary coil is open or shorted Replace cooking does Resistance of primary coil Approx 2 15 Q not work Resistance of secondary coil Approx 123 Q 2 Check if the MGT Heater Voltage is approx 3 3V AC Caution High voltage H V Capacitor Check continuity of capacitor between two Replace terminals with H V wire lead removed The resistance should be approx 10 it s failure H V Diode 1 If there is no continuity in forward direction the H V Diode is open Replace 2 If there is continuity in reverse direction it s shorted Fan motor Fan motor Check if the motor coil is open Replace does not rotate Samsung Electronics 7 E
13. filament voltage of magnetron PRECAUTION Never touch any circuit wiring with your hand nor with uninsulated tool during operation PRECAUTION Servicemen should remove their watches whenever working close to or replacing the magnetron Samsung Electronics 2 Specifications 2 1 Table of Specifications G2613C POWER SOURCE OUTPUT POWER TIMER COOLING METHOD MAGNETRON SHIPPING WEIGHT POWER CONSUMPTION OPERATING FREQUENCY OUTSIDE DIMENSIONS OVEN CAVITY DIMENSIONS 230V 50Hz AC MICROWAVE 1 350W GRILL 1 000W 800W IEC 705 2450MHz 60 MINUTES AIR COOLING OM75SH 31 489 W x 365 D x 275 H mm 306 W x 322 D x181 H mm APPROX 16 5 Kg Samsung Electronics 2 1 3 Operating Instructions 3 1 Control Panel DEFROST G2613C INSTANT COOK Samsung Electronics Operating Instruction 3 2 Features amp External Views Ventilation Holes Heater Light Safety Interlock Holes Control Panel Door Latches Open Door Push Button Guide Ring Glass Plate 275mm 203mm 365mm gt 3 3 Checking That Your Oven is Operating Correctly NOTE The oven must be plugged into an appropriate wall socket The glass plate must be in position in the ovn 1 Open the oven door by pushing the OPEN DOOR button Place a glass of water on the glas
14. he primary switch terminals with Replace the primary out when interlock switch wire removed using a multimeter If there is continuity interlock switch door is ary winding between switch terminals when door is opened opened the switch is defective Defective interlock Check continuity of the monitor switch terminals Replace the interlock monitor switch with wire removed by using a multimeter monitor switch If there is continuity between switch terminals when the door is closed the switch is defective Fuse is Layer short of the The fuse will not blow right away but if it blows ina Replace H V Transformer open secondary coil of few seconds then there is a layer short H V Transformer If the fuse blows with H V Trans secondary open the transformer may be faulty 1 Fuse blown out Check fuse Replace the fuse 2 Poor contact of Check continuity of power supply cord Also check Adjust or replace the power cord whether the power cord is securely wired power supply cord 3 Defective lamp The fan motor rotates but lamp does not light Replace the lamp Oven lamp 4 Defective timer Check the terminals of timer for continuity Replace the timer does not contacts turning the timer knob ON and OFF repeatedly light 5 Thermal cutout In this case the oven lamp and fan do not Replace the S W open turn on thermal cutout S W 1 Defective If 230V is found at motor terminals the motor Replace the motor Fan does fan motor should be replaced not
15. ielectric strength specifications A replacement part that does not have the same safety characteristics as the original might create shock fire or other hazards 1 3 Special High Voltage Precautions 1 High Voltage Warning Do not attempt to measureany of the high voltages this includes the filament voltage of the magnetron High voltage is present during any cook cycle Before touching any components or wiring always unplug the oven and discharge the high voltage capacitor See Figure 1 1 2 The high voltage capacitor remains charged about 30 seconds after disconnection Short the negative terminal of the high voltage capacitor to to the oven chassis Use a screwdriver 3 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 special components H V Capacitor H V Diode Short Touch chassis ground first then short to the high A voltage capacitor terminal by using screwdriver or jumper wire Fig 1 1 Discharging the High Voltage Capacitor PRECAUTION There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH VOLTAGE TRANSFORMER secondary and filament terminals It is extremely dangerous to work on or near these circuits with the oven energized DO NOT measure the voltage in the high voltage circuit including
16. n Measurement 1 Do not exceed the limited scale 2 The test probe must be held on the grip of the handle otherwise a false reading may result when the operator s hand is between the handle and the probe 3 When high leakage is suspected do not move the probe horizontally along the oven surface this may cause damage to the probe 4 Follow the recommendation of the manufacturer of the microwave energy survey meter 5 11 Leakage Measuring Procedure 5 11 1 Record keeping and notification after measurement 1 After adjustment and repair of a radiarion preventing device make a repair record for the measured values and keep the data 2 If the radiation leakage is more than 4 mW cm after determining that all parts are in good condition functioning properly and the identical parts are replaced as listed in this manual notift that fact to CENTRAL SERVICE CENTER 5 11 2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer Samsung Electronics 5 4 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 Diagnosis Remedy Fuse blows Defective primary Check continuity of t
17. ng that you require Symbol Recipes Serving Size Power level Standing Time 2 Drink 150ml 100 2 3mins Soup 200 300 10096 2 3mins Sauce Fresh 200 300 lt gt Vegetables g 100 2 3mins Samsung Electronics 4 Disassembly amp Reassembly 4 1 Replacement of Magnetron Motor Assembly and Lamp Remove the magnetron including the shield case permanent magnet choke coils andF capacitors all TM Thermo S W of which are contained in one assembly 1 Disconnect all lead wires from the magnetron and lamp 2 Remove a screw securing the magnetron supporter Remove the magnetron supporter Remove the air cover 5 Remove screws securing the magnetron to the wave guide Take out the magnetron very carefully Remove screws from the back panel Take out the fan motor Remove the oven lamp by rotating to pull out from hole of air cover PO Screw OND H V Trans H V Capacitor P ALL NOTE 1 When removing the magnetron make sure that its antenna does not hit any adjacent parts or it may be damaged NOTE 2 When replacing the magnetron be sure to remount the magnetron gasket in the correct position and make sure the gasket is in good condition 4 2 Replacement of High Voltage Transformer 1 Discharge the high voltage capacitor 2 Disconnect all the leads from the high voltage transformer 3 Remove the mounting bolts
18. ogether Then follow the adjustment procedures below After repair and adjustment be sure to check the continuity of all interlock switches and the interlock monitor switch 1 When mounting Primary switch and Interlock Monitor switch to Latch Body consult the figure below 2 NOTE No specific adjustment during pn interlock Switch installation of Primary rimary Interlock owitc switch and Monitor switch to the latch body is necessary Interlock Monitor 3 When mounting the Latch Body to the oven gt Switch assembly adjust to the Latch Body by moving it so that the oven door will not have any play Check for play in the door by pulling the door assembly Make sure that the latch keys move smoothly after adjustment is completed Completely tighten the screws holding the Latch Body to the Body Latch oven assembly Lever Switch Secondary Switch 4 Reconnect to Monitor switch and check the continuity of the monitor circuit and all latch switches again by following the components test procedures Door Open Door Closed Primary switch 0 5 Confirm that the gap between the switch Monitor switch COM NC 0 2 housing and Monitor switch COM NO 0 the switch actuator is more than 0 5mm Secondary switch oo 0 when door is closed Samsung Electronics 5 2 Alignment and Adjustments 5 6 Output Power of Magnetron CAUTION MICROWAVE RADIATI
19. on the high voltage transformer 4 When replacing connect the leads correctly and firmly H V Trans Screws Samsung Electronics 4 1 Disassembly amp Reassembly 4 3 Replacement of Door Assembly 4 3 1 Removal of Door Assembly Remove hex bolts securing the upper hinge and lower hinge Then remove the door assembly 4 3 2 Removal of Door C Insert flat screwdriver into the gap between Door E and Door to remove Door Be careful when handling Door C because it is fragile 4 3 3 Removal of Door E Following the procedure as shown in the figure insert and bend a thin metal plate between Door E and Door A until you hear the tick sound 1 Insertion depth of the thin metal plate should be 0 5mm or less 4 3 4 Removal of Key Door amp Spring Remove pin hinge from Door E Detach spring from Door E and key door Hinge Upper Hinge Lower LLE u 8 B B BM BM B BM BM Door E Door Key Spring Key Samsung Electronics Disassembly amp ReaAssembly 4 3 5 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
20. operate 2 Defective con The oven lamp does not light and fan motor Replace the timer tacts of timer does not operate NOTE Interlock m onitor switch must be replaced when the fuse is blown out Samsung Electronics Troubleshooting 6 1 Electrical Malfunction Continved Parts Cause Diagnosis Remedy 1 Too small If a small amount of food is heated for a long time To increase the oven a load period of microwave may turn off during operation load add a glass of Microwave water into the oven turns off during cook 2 Defective Check to see if the magnetron thermal cutout switch is Replace thermal cutout ing cycle magnetron activated at a temperature higher than 150 C switch thermal cutout S W Electric Incomplete Make sure that qrounding of the power supply cord has Rewire shock is qrounding been done properly felt Door does 1 Broken door Remove the cabinet for inspection Replace door hinges not operate hinges Check the door hinge properly 2 Missing or Check if the screws are secured well to the door hinge Fasten or tighten loose screw 1 Defective If the timer does not operate with 230V applied to the Replace timer Timer does timer motor terminals the timer motor amy be faulty not operate 2 Defective The lamp does not light Replace timer contacts of timer S W Cooking tray 1 Defective Check to see if 230V exists at the motor terminals Replace drive motor doe
21. ould read open RM Primary Terminals Secondary Terminal Magnetron Antenna Gasket Plate Cooling Fins Samsung Electronics Alignment and Adjustments 5 3 High Voltage Capacitor 1 Check continuity of the capacitor with meter set at the highest ohm scale 2 Once the capacitor is charged a normal capacitor shows continuity for a short time and then indicates 9MO 3 A shorted capacitor will show continuous continuity 4 An open capacitor will show constant 9MQ 5 Resistance between each terminal and chassis should read infinite 5 4 High Voltage Diode 1 Isolate the diode from the circuit by disconnecting its leads 2 With the ohm meter set at the highest resistance scale measure the resistance across the diode terminals Reverse the meter leads and read the resistance A meter with 6V 9V or higher voltage batteries should be used to check the front to back resistance of the diode otherwise an infinite resistance may be read in both directions The resistance of a normal diode will be infinite in one direction and several hundred KQ in the other direction 5 5 Adjustment of Primary Switch Door Sensing Switch and Monitor Switch Precaution For continued protection against radiation hazard replace parts in accordance with the wiring diagram and be sure to use the correct part number for the following switches Primary and secondary interlock switches and the interlock monitor switch all t
22. s not drive motor If so motor will be defective rotate 1 Blocking of Check if the air inlet or outlet ventilation is blocked Keep a distance of the ventilatior by the wall or other objects 100mm from the wall or the objects Magnetron 2 Defective If the fan motor does not operate with 230V applied Replace fan motor thermal fan motor to the terminal the motor may be faulty cutout switch 3 Too small a If a small amount of food is heated repeatedly over To increase the oven OFF load or no a long period of time microwave turns off during load place a glass of load operation water into the oven Samsung Electronics 6 2 Troubleshooting 6 2 Unsatisfactory Cooking Parts Food is not heated Cause 1 Open cathode of magnetron Diagnosis Check the terminals with a multimeter to see if the heater circuit is open Remedy Replace magnetron 2 Defective Check the H V Diode for continuity in the reverse and Replace H V Diode H V Diode normal directions using megger If there is continuity in the reverse direction the H V Diode may be faulty In this event H V Capacitor will be hot 3 Shorted Connect megger leads to quick connect terminal amp Replace magnetron magnetron body of the magnetron if there is continuity the magnetron may be faulty In this case the main fuse will be blown 4 Defective If there is a crack in the magnetron antenna dome Replace magnetron magn
23. s plate Close the door 2 Set the power level to 100 maximum by turning COOKING POWER CONTROL knob 3 Set the time to 4 to 5 minutes by turing TIMER knob Important If any problem is experienced in the operation of the oven please refer to the section on page 4 what to do if you are in doubt or have a problem Samsung Electronics Operating Instruction 3 4 Variable Power Cooking Chart Operation Set the COOKING POWER CONTROL knob to the appropriate power level by turning it POWER LEVEL MEE MWO GRILL HIGH 10096 800W MEDIUM HIGH 7096 560W MEDIUM 50 400W LOW WEDIUM 30 240W DEFROST 20 160W LOW 15 120W GRILL 5 1000W 3 5 Adjusting the Cooking Time During Cooking Stopping the Cooking To stop the cooking Press Temporarily Open Door To resume cooking close the door Completely Turn the TIMER knob to O 3 6 Manual Defrosting Food 1 Place the frozen food in the oven and close the door 2 Turn the COOKING POWER CONTROL knob to Defrost symbol 3 Turn the TIMER knob to select appropriate time Result Defrosting begins When Defrosting has finished the oven beeps 3 7 Instant Cook Guide 1 Place the food in the oven and close the door 2 Turn the COOKING POWER CONTROL knob to Max Power 3 Turn the TIMER knob to select instant cook drinks or jacket potatoes Adding Extra Time Simply move the timer knob to any increased setti
24. t for the Interlock switches described above Never alter or add to the mechanical or electrical design of the MWO Any design changes or additions will void the manufacturer s warranty 10 Always unplug the unit s AC power cord from the AC power source before attempting to remove or reinstall any component or assembly Never defeat any of the B voltage interlocks Do not apply AC power to the unit or any of its assemblies unless all solid state heat sinks are correctly installed Some semiconductor solid state devices are easily damaged by static electricity Such components are called Electrostatically Sensitive Devices ESDs Examples include integrated circuits and field effect transistors Immediately before handling any semiconductor components or assemblies drain the electrostatic charge from your body by touching a known earth ground Always connect a test instrument s ground lead to the instrument chassis ground before connecting the positive lead always remove the instrument s ground lead last 1 1 Pretaution 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 A or A 19 Use replacement components that have the same ratings especially for flame resistance and d
25. ter 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 Hold the probe perpendicular to the cabinet door Place the spacer cone of the probe on the door and or cabinet door seam and move along the seam the door viewing window and the exhaust openings moving the probe in a clockwise direction at a rate of 1 inch sec If the leakage testing of the cabinet door seam is taken near a corner of the door keep the probe perpendicular to the areas making sure that the probe end at the base of the cone does not get closer than 2 inches to any metal If it gets closer than 2 inches erroneous readings may result 5 Measured leakage must be less than 4mW cm2 after repair or adjustment SAMSUNG Maximum allowable leakage is bmW cm 4mW cmv is used to allow for measurement and meter accuracy 5 9 Check for Microwave Leakage 1 Remove the outer panel 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 Start the oven at the highest power level Set survey meter dual ranges to 2 450 2 5 Using the survey meter and spacer cone as described above measure arnear the opening of magnetron the surface of the air guide and the surface of the wave guide as shown in the following photo but avoid the high voltage components The neading should be less than 4mW cm2 m 59 5 10 Note o
26. xploded Views and Parts List 7 1 Main Exploded View Samsung Electronics 7 1 Exploded Views and Parts List 7 2 Main Parts List Ref No Parts No Description Specification Q ty Remarks M1 DE70 30116B PANEL OUTER SECC T0 6 W351 7 L1014 7 WHT C M2 DE63 90035G CUSHION RUBBER DFA20 12 W190 L100 BLK PN OUT M3 DE61 50323B BRACKET UPPER ALSTER T0 6 W385 L205 G643C M4 3601 000448 FUSE FERRULE 250V 10A SB CERAMIC 6 35X31 8MM M5 3601 001126 FUSE FERRULE 250V 1 6A FA CERAMIC 5X20MM M6 DE91 40095A ASSY NOISE FILTER SN E10D N 250V 10A 2ND WD TYP M7 DE31 30031A FAN MOTOR SMF745EA 230V 50HZ ASSY FAN MO M8 DE39 20131A ASSY POWER CORD KKDK 230V50HZ 1500 GRAY Mg DE39 40544A WIRE HARNESS A 230V50HZ G635C EURO M10 DE47 20018A THERMOSTAT PW 2N 150 60 187Y 30 250V 7 5A MG TCO M11 DE65 20012A CORD CLAMP DALC 2 1 SILICON M12 DE71 60298B COVER BACK COVER LABEL CE745G G64 M13 OM75SH 31 ESSS ASSY MAGNETRON 0M75S A M14 DE74 70071B RACK WIRE MSWRS PI3 PI230 HI80 SNC2 M15 4713 001031 LAMP INCANDESCENT 230V 173mA 40W ORG 25x69mm CV AIR M16 DE71 60010A COVER AIR PP TB53 11 7 WHT 64G M745 M17 DE93 20001A ASSY BODY LATCH 2ND W1 M97G45 M9745 M18 DE66 90113A LEVER DOOR PP TB53 GH10 12 5 W31X100 5 12G NTR 3RD W M19 DE26 10121B TRANS H V SHV 745EC1 230V 50HZ KEC 2230V A DE94 00089W ASSY DOOR G2613C XEC PURE WHT SESA A DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 2501 001105 C OIL 950nF
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