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4. Disassembly and Reassembly

4-1 Replacement of Magnetron, Motor Assembly and Lamp

Samsung Electronics

4-1

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. Remove the air cover.
3. Remove screws securing the magnetron to the

wave guide.

4. Take out the magnetron very carefully.
5. Remove tow screws from the back panel of fan

motor assembly.

6. Take out the fan motor assembly.
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 capacitor.
2. Disconnect all the leads.
3. Remove the mounting bolts.
4. Reconnect the leads correctly and firmly.

4-2 Replacement of High Voltage Transformer

Lamp

Cover Air

Magnetron

H. V. Trans

H. V. Capacitor

Thermo S/W

Fan Motor

Screw

PRECAUTION

Servicemen should remov their watches whenever

working close to or replacing the magnetron.

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 filament voltage of magnetron.

Summary of Contents for MW4592W

Page 1: ...RVICEManual 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...

Page 2: ...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...

Page 3: ...icians should remove their watches while repairing an MWO 11 To avoid any possible radiation hazard replace parts in accordance with the wiring diagram Also use only the exact replacements for the fol...

Page 4: ...ve terminal of the high voltage capacitor 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...

Page 5: ...93G ITEM TIMER 99 MINUTES 99 SECONDS CONTROLS 10 POWER LEVELS INCLUDING DEFROST POWER SOURCE 120V 60HZ AC POWER CONSUMPTION MICROWAVE 1 450W OUTPUT POWER 700 Watts OPERATING FREQUENCY 2 450MHz OUTSIDE...

Page 6: ...to level other than high Clock Sets current time Start Pause Canel Press to pause oven or correct a mistake Kitchen Timer Sound Button Auto Reheat Auto Defrost Start One Minute Pause Cancel 3 2 1 Cloc...

Page 7: ...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 capa...

Page 8: ...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 Insert flat screwdriver into the gap between Door A and Door...

Page 9: ...efective 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...

Page 10: ...econnecting 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 wil...

Page 11: ...al and magnetron case 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 resis...

Page 12: ...ssembly 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...

Page 13: ...tir 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...

Page 14: ...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 5 mW cm2 after determining that all parts are in good condition...

Page 15: ...sensing 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 Che...

Page 16: ...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 o...

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

Page 18: ...H10 T2 5 W31X100 5 12G NTR 3RD W 1 M12 DE26 10156A TRANS H V SHV 4593UC 120V 2015V 3 10V 60 1 M13 2501 001112 C OIL 800nF 2 1KV BK 54x35x70 20mm 1 M14 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 M1...

Page 19: ...t Ref No Parts No Description Specification Q ty Remarks C 1 DE66 20275A BUTTON PUSH ABS HR0370U 9G P WHT W9501 3RD W S1 1 MW4592W C 1 DE66 20275C BUTTON PUSH ABS V0 GRY MW4593G 1 MW4593G C 2 DE61 700...

Page 20: ...H SCREW A 2S 4X12 TOOTHED 1 P CORD DE60 10082H SCREW A 2S 4X12 TOOTHED 1 PCB GND DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 G MOTOR DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWR...

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

Page 22: ...2MM 2 R32 R33 P18 2001 000435 R CARBON 1MOHM 5 1 8W AA TP 1 8X3 2MM 1 R25 P19 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM 1 R15 P20 2001 000577 R CARBON 2KOHM 5 1 8W AA TP 1 8X3 2MM 2 R05 R13...

Page 23: ...ITION DOOR IS OPENED 120V15A PCB PATTERN WARNING NOTE CIRCUIT SHOWN WITH DOOR IS OPENED POSITION NOTE FOR SERVICE REPLACEMENT USE 16 GA 105 C THERMOPLASTIC COVERED WIRE EXCEPT FOR HIGH VOLTAGE LEADS O...

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