Samsung CE2618NR Service Manual Download Page 1

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SRSC

SERVICE

MICROWAVE OVEN

CONTENTS

MICROWAVE OVEN

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

Manual

CE2618NR

CE2618N

600

750W

100

300

450

Summary of Contents for CE2618NR

Page 1: ...aution 2 Specifications 3 Operating Instructions 4 Disassembly and Reassembly 5 Alignment and Adjustments 6 Troubleshooting 7 Exploded Views and Parts List 8 Schematic Diagrams Manual CE2618NR 5 0 1 60 50 40 30 20 10 9 8 7 6 4 3 2 CE2618N 600 750W 100 300 450 ...

Page 2: ...s 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 s...

Page 3: ...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 16 Always connect a test instrument s ground lead to the instrument chassis ground before connecting the positive le...

Page 4: ...igure 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 PRECAUTIO...

Page 5: ...NETRON COOLING METHOD OUTSIDE DIMENSIONS OVEN DIMENSIONS SHIPPING DIMENSIONS SHIPPING WEIGHT APPROX 60 MINUTES 230V 50Hz AC MICROWAVE 1 200W GRILL 1100W FROM 100 TO 750W IEC 705 TEST PROCEDURE 2 450MHz OM75P 31 ESS COOLING FAN MOTOR 489 W x 275 H x 383 D 306 W x 181 H x 320 D 557 W x 329 H x 418 D NET 14 5kg GROSS 16 0kg ...

Page 6: ...anel 3 2 Features External Views 275mm 206mm 383mm 489mm 342mm VENTILATION HOLES GRILL LIGHT VARIABLE COOKING POWER CONTROL KNOB TIMER KNOB COUPLER DOOR DOOR LATCHES OPEN DOOR PUSH BUTTON METAL RACK SAFETY INTERLOCK HOLES ROLLER RING TURNTABLE ...

Page 7: ... does not hit any adjacent parts or it may be damaged NOTE2 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 3 Remove the mounting bolts 4 Reconnect the leads correctly and firmly PRECAUTION Serviceme...

Page 8: ...ul when handling Door C because it is fragile Then remove the door assembly 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 Insertion depth of the thin metal plate should be 0 5mm or less 4 3 4 Removal of Key Door Spring Remove pin hinge from Door E Detach spring from Door E and key do...

Page 9: ...operate properly check if any other part such as the control circuit board blower motor or high voltage transformer is defective 4 5 Replacement of Drive Motor 1 Take out the glass tray guide roller and coupler from cavity 2 Turn the oven upside down to replace the drive motor 3 Remove a screw securing the drive motor cover 4 Disconnect all the lead wires from the drive motor 5 Remove screws secur...

Page 10: ...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 Ass y 4 Remove the screw securing the timer CONTROL BOX SCREWS ...

Page 11: ...k across the magnetron filament terminals should indicate one ohm or less 4 A continuity check between each filament terminal and magnetron case should read open Primary Terminals Filament Terminals Secondary Terminal Magnetron Antenna Gasket Plate Cooling Fins PRECAUTION 1 High voltage is present at the high voltage terminals during any cook cycle 2 It is neither necessary nor advisable to attemp...

Page 12: ...ns secondary open the transformer may be faulty Replace H V Transformer Oven lamp does not light 1 Fuse blown out Check fuse Replace the fuse 2 Poor contact of power cord Check continuity of power supply cord Also check whether the power cord is securely wired Adjust or replace the power supply cord 3 Defective lamp The fan motor rotates but lamp does not light Replace the lamp 4 Defective timer c...

Page 13: ... well to the door hinge Fasten or tighten Timer does not operate 1 Defective timer motor If the timer does not operate with 21V applied to the terminals the timer motor amy be faulty Replace timer 2 Defective contacts of timer S W The lamp does not light Replace timer Cooking tray does not rotate 1 Defective drive motor Check to see if 21V exists at the motor terminals If so motor will be defectiv...

Page 14: ...N and OFF repeatedly Replace or adjust 6 Open coil of H V Trans former Check the continuity of primary coil and secondary coil If there is no continuity H V Transformer is defective Replace the H V Transformer 7 Shorted H V capacitor Check the continuity of capacitor If the capacitor shorts the fuse blows Replace the H V Capacitor 8 Monitor fuse blown out Check the monitor fuse on the noise filter...

Page 15: ...tch Body to the oven assembly adjust the Latch Body by moving it so that the oven door will not have any play in it 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 oven assembly 4 Reconnect to Monitor switch and check the continuity of the monitor circuit an...

Page 16: ...edure will cause a variance in the temperature rise Additional power test should be made if temperature rise is marginal NOTE 2 Output power in watts is computed by multiplying the temperature rise step 5 by a factor of 91 times the of centigrade temperature 5 7 Microwave Heat Distribution Heat Evenness The microwave heat distribution can be checked indirectly by measuring the water temperature ri...

Page 17: ...t survey meter dual ranges to 2 450MHz 5 Using the survey meter and spacer cone as described above measure near 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 reading should be less than 4mW cm2 5 10 Note on Measurement 1 Do not exceed the limited scale 2 The test probe must be held o...

Page 18: ...22 MM29 MM30 MM31 MM67 MM52 MM06 MM172 MM05 MM551 MM55 MM26 MM61 MM68 MM57 MM17 MM08 MM09 MM07 MM25 MM59 MM21 MM18 MM19 MM20 MM64 MM03 MM32 MM10 MM88 MM14 MM27 MM28 MB01 MM13 MB05 MB03 MB04 MB02 MC05 MC04 MC09 MC03 MC12 MC08 MC01 MD01 MD04 MD02 MD03 MD10 MD07 MC06 MC05 MC11 MM16 ...

Page 19: ... 160 60 250V 7 5A H 1 MG TCO MM171 DE47 00002B THERMOSTAT PW2N 100 110 187H 30 0 1 GRI TCO MM172 DE47 20010A THERMOSTAT PW 2N 120 60 187Y 250V7 5A 120 1 CAV TCO MM18 DE74 20102B TRAY COOKING GLASS T5 0 PI288 780G M745 1 MM19 DE97 00193B ASSY GUIDE ROLLER NC2000 0 6 T2 P1198 14 5PI 1 MM20 DE67 00140A COUPLER NC2000 0 6 0 8 PPS ESS840 BRN NEW 1 MM22 DE31 10154A MOTOR SYNCHRONOUS M2HJ49ZR02 ST 16 50 ...

Page 20: ...5A 6mS 20mS 1 MD01 DE94 00256W ASSY DOOR CE2618NR CE2638NR BWT PURE WHT 1 MD02 DE64 00091U DOOR A M1618R BWT ABS P WHT 1 MD03 DE67 20186A SCREEN DOOR SAN T2 2 W354 L224 SMOG 3RD 0 7CU FT 1 MD04 DE92 50133F ASSY DOOR E CE2733 3RD 0 7 BLK CAOTING 2ND HINGE 1 MD05 DE01 00112B FILM DOOR PET T0 15 W150 L268 NTR 3RD GRILL 1 MD06 DE64 40008B DOOR C PP T1 5 BLK CE745G 1 MD07 DE61 00132A SPRING KEY M1733 H...

Page 21: ... DE60 10082H SCREW A 2S 4X12 TOOTHED 4 OUT PANEL DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 CVT TCO DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 D MOTOR DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 MGT TCO DE60 10122A SCREW TAP TH TAP TH 2 4X8 FE FN 1 P OUTER DE60 10195A SCREW STAR POLE TH 2 4 12 SWCH18A ZNC 2 C BACK DE60 20063A BOLT FL...

Page 22: ...atic Diagrams 8 1 Schematic Diagrams MAGNETRON FA F RED RED RED RED SYMBOL COLOR BRN BROWN BLK BLACK RED RED BLU BLUE BLK BLU HIGH VOLTAGE TRANSFORMER HIGH VOLTAGE CAPACITOR HIGH VOLTAGE DIODE TO CHASSIS H V FUSE ...

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