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8. P.C.B Diagrams

8-1 P.C.B Diagrams

Samsung Electronics

8-1

Содержание CE2774R

Страница 1: ...CEManual 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 SRSC ...

Страница 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 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 releas...

Страница 3: ...hes 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 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 13 Design Alteratio...

Страница 4: ...es 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 screwdrive...

Страница 5: ...OWAVE 1400W GRILL 1100W COMBI 2500W OUTPUT POWER FROM 100 TO 850W IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75PH 31 COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 489 W x 275 H x 388 D 2 2 Comparison Chart AUTO REHEAT O AUTO COOK O COOK O POWER LEVEL O TIME SETTING AND WEIGHT O AUTO DEFROST O GRILL O COMBI O ...

Страница 6: ...n Start Button Auto Reheat Cook Selection CE2774 30 s Auto 3 Operating Instructions 3 1 Control Panel Samsung Electronics 3 1 3 2 Features External Views Door Ventilation Holes Light Safety Interlock Hole Control Panel Roller Ring Coupler Glass Plate Door Latches 489mm 275mm 388mm ...

Страница 7: ...es 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 1 Replacement of High Voltage Transformer PRECAUTION Servicemen s...

Страница 8: ... screwdriver into the gap between Door E and Door C to remove Door C Be careful when handling Door 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 spri...

Страница 9: ... remount it in the correct position 8 Connect all the leads to the drive motor 9 Screw the deive motor cover to the base plate with a screw driver 10 Remount the coupler in the correct position 4 4 Replacement of Fuse 4 5 Replacement of Drive Motor Disassembly and Reassembly Screw Drive Motor Cover Base Plate Drive Motor After replacement of the defective component parts of the door reassemble it ...

Страница 10: ...emove the screw securing the ground tail of the keyboard 1 Pull the lever end of the plastic fastener and remove the Flexible Printed Circuit FPC of membrane panel 2 Remove screws securing the control circuit board 3 Lift up the control circuit board from the Ass y control box 4 When reconnecting the FPC connector make sure that the holes on the connector are properly engaged with the hooks on the...

Страница 11: ...t terminal 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 resistor reading is shown in the table Filament Terminals Secondary Terminal Primary Terminals Secondary Approx 100W Filament Approx 0W Primary Approx 1 450W Terminals Resistance 1 2 Input 1 000W 3...

Страница 12: ...bly 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 switches again...

Страница 13: ...n 4 When heating is finished 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 DT 6 The output power is obtained by the following formula Output W 100 x DT 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 temperatur...

Страница 14: ... 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 12 2 At least once a year have the microwave energy survey meter checked f...

Страница 15: ...witch 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 Sequence R...

Страница 16: ...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 Replace turntable motor 2 Defective turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary Adjust door and latch switches interlock switch 2 Operation of thermal...

Страница 17: ...s 7 1 M1 M2 M35 M32 M33 M36 M37 M38 M39 M34 M23 M24 M28 M30 M29 M31 M3 M15 M14 M20 M16 M17 M18 M19 M21 M25 M26 M22 M12 M13 M40 M41 M42 M43 M27 D1 D12 D2 D3 D4 D5 D6 D7 D9 D8 B1 B2 B2 B3 B4 NC NO COM C2 C1 C3 C7 C5 C8 C6 C10 C9 C11 C12 C4 M4 M5 M6 M8 M9 M7 M10 M11 D10 D11 ...

Страница 18: ...20009A THERMOSTAT PW2N 520PB 160 60 250V 7 5A H 1 MG TCO M21 OM75PH 31 ESS ASSY MAGNETRON OM75PH 31 ESS 1 M22 4713 001031 LAMP INCANDESCENT 230V 173mA 40W ORG 25x69mm 1 CV AIR M23 DE71 60457A COVER AIR PP T1 7 W115 5 L150 WHT 3RD W0 1 M24 DE47 20032A THERMOSTAT PW 2N 85 75 1 GRL TCO M25 DE93 20020A ASSY BODY LATCH RE 43B 90B 1 M26 DE27 10020A COIL MC CHOKE TC 101 1 M27 2501 001104 C OIL 1uF 2 1KV ...

Страница 19: ...o Description Specification Q ty Remarks B 1 DE66 40021A LATCH BODY POM F20 02 50G RE 330 1 B 2 3405 000178 SWITCH MICRO 250V 15A 200gf SPST NO 2 B 3 3405 000175 SWITCH MICRO 250V 15A 200gf SPST NO 1 B 4 DE66 90054A LEVER SWITCH POM F20 02 15G NTR RE 330 1 7 5 Body Latch Parts List Ref No Parts No Description Specification Q ty Remarks C 1 DE67 00003B WINDOW DISPLAY ACRYL SMOG M1774 1 C 2 DE71 000...

Страница 20: ...SCREW A 2S 4X12 TOOTHED 1 CON BOX DE60 10082H SCREW A 2S 4X12 TOOTHED 1 COVER AIR 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 2 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 CV CE...

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

Страница 22: ... 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM 4 R005 R006 R007 R010 P27 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM 4 R013 R016 R031 R032 P27 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM 3 R033 R036 R037 P28 2001 000429 R CARBON 1KOHM 5 1 8W AA TP 1 8X3 2MM 4 R003 R004 R008 R028 P28 2001 000429 R CARBON 1KOHM 5 1 8W AA TP 1 8X3 2MM 4 R029 R030 R034 R035 P29 2001 000435 R CARBON ...

Страница 23: ...RANGE YEL YELLOW COOK OFF WIRING COLOR 1 INPUT 230V 2 DOOR OPEN 3 LAMP ON 4 P C B PATTERN 5 P C B IN OUT POINT GRN BRN BRN BRN WARNING NOTE CIRCUIT SHOWN WITH DOOR IS OPENED POSITION NOTE FOR SERVICE REPLACEMENT USE 16 GA 105ûC THERMOPLASTIC COVERED WIRE EXCEPT FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE ...

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