Samsung CE745GR Disassembly and Reassembly, Replacement of Magnetron, Motor Assembly and Lamp

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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 500pF

Cover Air

capacitors (all of which are contained in one assembly).

1. Disconnect all lead wires from the magnetron

and lamp.

Lamp

Thermo S/W

Fan Motor

2. Remove the bracket mounting.

3. Remove the air cover.

4. Remove screws securing the magnetron to the

wave guide.

5. Take out the magnetron very carefully.

6. Remove screws from the back panel.

7.Remove the assy noise filter.

8. Take out the fan motor.

9. Remove the oven lamp by pulling out from hole

of air cover carefully.

10. NOTE1: When removing the magnetron, make

sure that its antenna does not hit any

adjacent parts, or it may be damaged.

11. 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.

BKT-Mountain

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw

Magnetron

H. V. Trans

 

 

 

 

 

 

 

V. Capacitor

 

 

H.

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

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.

 

 

 

Bolts

 

H. V. Trans

DO NOT measure the voltage in the high voltage

 

 

 

 

 

 

 

 

circuit including filament voltage of magnetron.

Samsung Electronics

4-1

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Contents Microwave Oven Page Safety precautions PrecautionSpecial High Voltage Precautions Special Servicing PrecautionsTable of Specifications SpecificationsComparison Chart Operating Instructions Features & External ViewsControl Panel Replacement of Magnetron, Motor Assembly and Lamp Disassembly and ReassemblyReplacement of High Voltage Transformer Removal of Door Assembly Replacement of Door AssemblyReplacement of Drive Motor Replacement of FuseRemoval of Control Box Assembly Replacement of Control Circuit BoardMagnetron Alignment and AdjustmentsHigh Voltage Transformer Low Voltage TransformerHigh Voltage Diode Main Relay and Power Control RelayPrecaution High Voltage CapacitorLeakage Measuring Procedure Output Power of MagnetronMicrowave Heat Distribution Heat Evenness Electrical Malfunction TroubleshootingTroubleshooting Exploded Views Exploded Views and Parts ListParts No Description/Specification Qty Remarks Main Parts ListParts No Description/Specification Qty Remarks Old Parts No Control Parts ListBody Latch Parts List Description/Specification QtyStandard Parts List P.C.B Diagrams C.B DiagramsParts No Description / Specification Qty Remarks P.C.B Parts ListSchematic Diagrams Schematic Diagrams