Samsung MW5780H Service Manual Download | Manualshive

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Samsung Electronics

7. Exploded Views and Parts List

7-1 Exploded Views

7-1

M1

M2

M29

M21

M22

M23

C1

C2

C3

C4

C5

C6

C7

M24

D1

D2

D3

D5

D6

M25

M26

M11

M13

M14

M15

M12

M16

M17

M18

M19

M20

M3

M4

M5

M6

M7

M8

M9

M10

B1

B2

B4

B3

M27

D4

D7

D8

M28

M30

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Summary of Contents for MW5780H

Page 1: ...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 PCB Diagrams 9 Schematic Diagrams SEA ...

Page 2: ...st 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 by procedures described in this manual before the oven is rele...

Page 3: ...o use only the exact replacements for the following parts Primary and secondary interlock switches interlock monitor switch 12 If the fuse is blown by the Interlock Monitor Switch Replace all of the following at the same time Primary door sensing interlock monitor switch and power relay The correct adjustment of these switches is described elsewhere in this manual Make sure that the fuse has the c...

Page 4: ...reate shock fire or other hazards 1 High Voltage Warning Do not attempt to measure any 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 discon...

Page 5: ...OUTPUT POWER FROM 80W TO 800W 10 LEVEL POWER IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75SH 31 ESS COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 2011 32 W x 1111 32 H x 145 8 D NET WEIGHT 33 1 lbs SHIPPING WEIGHT 37 5 lbs 2 2 Comparison Chart MORE LESS AUTO REHEAT AUTO DEFROST TIME COOK POWER LEVEL O CUSTOM COOK O MEMORY O CHILD LOCK CLOCK O SOUND O ...

Page 6: ...utton 1 2 3 4 5 Start 3 2 1 6 5 4 9 8 7 0 Clock Sound Power Level Cancel MW5780H 3 Operating Instructions 3 1 Control Panel 3 1 3 2 Features External Views Door VentilationHoles Light SafetyInterlockHoles ControlPanel OpenDoorPush Button GuideRoller GlassPlate DoorLatches 517mm 369mm 297 3mm 216 4mm 317 4mm ...

Page 7: ...om the back panel 6 Take out the fan motor 7 Remove the oven lamp by pulling out from hole of air cover NOTE1 When removing the magnetron make sure that its antenna 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 1 Discharge the high voltage capacito...

Page 8: ... C because it is fragile 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 Spring Remove pin hinge from Door E Detach spring from Door E and key door 4 3 2 Removal of Door C 4 3 3 Removal of Door E Key Door Spring Door E...

Page 9: ...placing the drive motor be sure to remount it in the correct position with the coupler 8 Connect all the leads to the drive motor 9 Screw the drive motor cover to the base plate with a screw driver 4 4 Replacement of Fuse 4 5 Replacement of Drive Motor Disassembly and Reassembly Screw Drive Motor Cover Base Plate Thermo Switch Drive Motor 4 3 5 Reassembly Test After replacement of the defective co...

Page 10: ...cting the FPC connector make sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener 1 Window display should not be disassembled as its mounting tabs will be broken If repair work is difficult replace with Ass y control panel 2 The membrane key board is attached to the escutcheon base with doublefaced adhesive tape Therefore applying hot air such as using o...

Page 11: ...ase should read open 1 The low voltage transformer is located on the control circuit board 2 Remove the low voltage transformer from the PCB Ass y and check continuity 3 Normal resistor reading is shown in the table 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 tou...

Page 12: ...n 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 and all latch switche...

Page 13: ...nished stir the water again with the thermometer and measure the temperature T2 5 Subtract T1 from T2 This will give you the water temperature rise T 6 The output power is obtained by the following formula 7 Normal temperature rise for this model is 9ûC to 11ûC at HIGH NOTE 1 Variations or errors in the test procedure will cause a variance in the temperature rise Additional power test should be ma...

Page 14: ...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 cm2 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 13 2 At least once a year have the microwave energy survey meter ...

Page 15: ...ng switch 3 Defective monitor switch NOTE1 4 Shorted HVCapacitor 5 Shorted HVTransformer NOTE2 NOTE 1 All of these switches must be replaced at the same time refer to adjustment instructions Check continuity of power relay contacts and if it has continuity replace power relay also NOTE 2 When HVTransformer is replaced check diode and magnetron also Oven does not accept 1 Key input is not in Sequen...

Page 16: ...d 1 Loose fan and fan motor Tighten screws of fan motor 2 Loose screws on H V Transformer Tighten screws of H V Transformer 3 Shorted H V Diode Replace H V Diode Turntable motor does not rotate 1 Open or loose wiring of turntable motor Check the wire of turntable motor 2 Defective turntable motor Replace turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary Adjust d...

Page 17: ...7 Exploded Views and Parts List 7 1 Exploded Views 7 1 M1 M2 M29 M21 M22 M23 C1 C2 C3 C4 C5 C6 C7 M24 D1 D2 D3 D5 D6 M25 M26 M11 M13 M14 M15 M12 M16 M17 M18 M19 M20 M3 M4 M5 M6 M7 M8 M9 M10 B1 B2 B4 B3 M27 D4 D7 D8 M28 M30 ...

Page 18: ...1035 C OIL 860nF 2100V BK 35x54x75 20mm 1 M14 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 M15 DE59 40001A DIODE H V HVR 1X 32B 12 1 M16 DE74 20015B TRAY COOKING GLASS T6 0 PI318 1050G MW5630T 1 M17 DE92 90189D ASSY GUIDE ROLLER D19 STD 1 M18 DE67 60026C COUPLER PTFE 12G WHT MB245 1 M19 DE61 40017A FOOT PP A353 BLK MW5630T 2 M20 DE80 10001A BASE PLATE SGCC T0 8 345 565 1 M21 DE31 10154A MOTOR DR...

Page 19: ... List Ref No Parts No Description Specification Q ty Remarks C 1 DE66 20010A BUTTON PUSH ABS VH 080 WHT 17 6G MW4370W 1 C 2 DE61 70076A SPRING BUTTON HSWR PI0 6 1 C 3 DE34 00013A SWITCH MEMBRANE PET MW5780H 120V60HZ 1 C 4 DE72 70161A CONTROL PANEL ABS VH 0800 PURE WHT MW5470W 1 C 5 DE67 40003A WINDOW DISPLAY ACRYL T2 3 W36 8 L91 8 SMOG MW 1 C 6 DE97 00032A ASSY PCB MAIN MW5780H XAA RA 1660 04 1 C ...

Page 20: ... TOOTHED 1 CV AIR DE60 10082H SCREW A 2S 4X12 TOOTHED 1 MEM P DE60 10082H SCREW A 2S 4X12 TOOTHED 5 O PANEL DE60 10082H SCREW A 2S 4X12 TOOTHED 1 P EARTH 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 GEAR DE60 20063A BOLT FLANGE M4 10 ZPC3 YEL MSWR 2 HI LO DE60 20063A BOLT FLANGE M4 10 ZPC3 YEL MSWR 2 HI U...

Page 21: ...8 P C B Diagrams 8 1 P C B Diagrams Samsung Electronics 8 1 ...

Page 22: ...2202 000121 C CERAMIC MLC AXIAL 100pF 10 50V Y5P TP 1 9x3 5 1 C09 P17 2202 000780 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5V TP 3 5x1 4 C06 C07 C08 C12 P18 2401 000244 C AL 100uF 20 10V GP TP 6 3x7 5 1 C04 P19 2401 000914 C AL 22uF 20 16V GP TP 5x11 5 2 C05 C10 P20 2401 001415 C AL 470uF 20 35V GP TP 10x20 5 1 C01 P21 2401 001573 C AL 47uF 20 50V GP TP 6 3x11 2 5 1 C02 P22 2401 002075 C AL 4 7uF 20 5...

Page 23: ...CIRCUIT SHOWN WITH DOOR IS OPENED POSITION NOTE FOR SERVICE REPLACEMENT USE 16 GA 105 C THERMOPLASTIC COVERED WIRE EXCEPT FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS 1 INPUT 120V 60HZ 2 DOOR OPEN 3 LAMP ON 4 P C B PATTERN 5 P C B IN OUT POINT MGT TCO COM NC 120V 130V 40W 21V 0V NO G GROUND L FM DM BLK BLK RED RED RED ORG WHT BLK WHT ORG ORG BLU BLK BLU MAGNETRON HIGH VOLTAGE DIODE TO CHASS...

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