Samsung CE287DNR Service Manual Download Page 23

Page: 23 / 23

9. Schematic Diagrams

9-1 Schematic Diagrams

RED

BRN

BLK

HIGH VOLTAGE
TRANSFORMER

H.V.FUSE

HIGH VOLTAGE CAPACITOR

HIGH VOLTAGE
DIODE

TO CHASSIS

MAGNETRON

SYMBOL

ORG

RED

BRN

RED

BLK

COLOR

ORANG

BROWN

RED

BLACK

CONDITION OF OVEN

DOOR IS OPENED

BRN : BROWN
WHT : WHITE
RED : RED
BLK : BLACK
Y/G : YELLOW GREEN

BLU : BLUE

ORG : ORANGE
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 POIN

Summary of Contents for CE287DNR

Page 1: ...TS 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 PCB Diagrams 9 Schematic Diagrams Manual CE287DNR ...

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: ...uld 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 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 Secondary door sensing switch...

Page 4: ...gure 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 PRECAUTION...

Page 5: ...ETHOD OUTSIDE DIMENSIONS OVEN DIMENSIONS SHIPPING DIMENSIONS SHIPPING WEIGHT APPROX 99 MINUTES 230V 50Hz AC MICROWAVE 1 300W GRILL 1100W COMBI 2400W FROM 100 TO 850W IEC 705 TEST PROCEDURE 2 450MHz OM75P 31 ERT COOLING FAN MOTOR 489mm W x 275mm H x 398mm D 330mm W x 211mm H x 329mm D 557mm W x 329mm H x 451mm D NET 15 0kg GROSS 16 5kg ...

Page 6: ...ing Instructions 3 1 Control Panel 3 2 Features External Views 342mm 489mm 206mm 398mm 275mm VENTILATION HOLES LIGHT DOOR LATCHES HANDLE DOOR COUPLER ROLLER RING SAFETY INTERLOCK HOLES TURNTABLE GRILL METAL RACK ...

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 Servicemen...

Page 8: ...n remove the door assembly 4 3 2 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 3 Removal of Key Door Spring Remove pin hinge from Door E Detach spring from Door E and key door Door E Key Door Spring Door E Door A Door C ...

Page 9: ...perate 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 securi...

Page 10: ...rol circuit 2 Disconnect the connectors from the control circuit board 3 Remove screws securing the control box assembly 4 Remove the screw securing the ground tail of the keyboard 4 6 2 Removal of Ass y P C B Assembly 1 Remove screws securing the control circuit board 2 Lift up the control circuit board from the Ass y control box SCREWS ASSY PCB CONTROL BOX SCREW ...

Page 11: ...nt or shorted magnetron 2 Isolate the magnetron from the circuit by disconnecting its leads 3 A continuity check 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 i...

Page 12: ...t the figure 2 No specific adjustment during installation of Primary switch and Monitor switch to the latch body is necessary 3 When mounting the Latch 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 Comple...

Page 13: ...ure 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 9 Microwave Heat Distribution Heat Evenness The microwave heat distribution can be checked indirectly by measuring the water temperature rise...

Page 14: ...n at the highest power level 4 Set 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 12 Note on Measurement 1 Do not exceed the limited scal...

Page 15: ...rocedure Replace PCB main Timer starts countdown but no microwave oscillation No heat while oven lamp and fan motor turn on 1 Off alignment of latch switches 2 Open or loose connection of high voltage circuit especially magnetron filament circuit NOTE Large contact resistance will bring lower magnetron filament voltage and cause magnetron to lower output and or intermittent oscillation 3 Defective...

Page 16: ...ain Loud buzzing noise can be heard 1 Loose fan and fan motor 2 Loose screws on H V Transformer 3 Shorted H V Diode Tighten screws of fan motor Tighten screws of H V Transformer Replace H V Diode Turntable motor does not rotate 1 Open or loose wiring of turntable motor 2 Defective turntable motor Replace turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary interloc...

Page 17: ... MM30 MM31 MM06 MM17 MM05 MM55 MM26 MM61 MM68 MM109 MM60 MM57 MM17 MM08 MM09 MM07 MM25 MM59 MM21 MM18 MM19 MM20 MM64 MM03 MM32 MM10 MM88 MM14 MM27 MM28 MB01 MB05 MB03 MB02 MB042 MB041 MC142 MC141 MC23 MC27 MC143 MC01 MC03 MC06 MC07 MC15 MC10 MD04 MD06 MD05 MD14 MD03 MD02 MD10 MD01 MD07 MM125 ...

Page 18: ...TAT PW2N 520PB 160 60 250V 7 5A H 1 MG TCO MM17 DE47 20010A THERMOSTAT PW 2N 120 60 187Y 250V7 5A 12 1 CAV TCO MM18 DE74 20102D TRAY COOKING GLASS T6 890g 1 MM19 DE97 00193B ASSY GUIDE ROLLER NC2000 0 6 T2 P1198 14 1 MM20 DE67 00140A COUPLER NC2000 0 6 0 8 PPS ESS840 3G 1 MM21 DE39 40409A WIRE HARNESS E 230V50HZ M9G45 CTW 1 H EART MM22 DE31 10154A MOTOR SYNCHRONOUS M2HJ49ZR02 ST 16 50 60 1 MM25 DE...

Page 19: ... 00515D BUTTON START A M187DNR CE287DNR ABS HG0 1 MC23 DE64 00517A BUTTON CLOCK M187DN SAN SMOG C DESIG 1 MC27 DE64 00514A BUTTON CANCEL M187DN ABS HG0760 WHT 1 MC41 DE63 00108A CUSHION PCB M182DN M187DN PUT FOAM T10 W 1 MD01 ASSY DOOR CE287DNR BWT PURE WHT SER CTP 1 S N A MD02 DE64 00494J DOOR A CE287DNR BWT ABS HG0760 PURE WHT 1 MD03 DE64 00496A SCREEN DOOR M181DN SAN CR5381 G 1 MD04 DE94 00351B...

Page 20: ... L8 6 PCB DE60 10063A SCREW TAP TH FEFN TH M4 L12 1 P OUTER DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 2 B LATCH DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 3 B PLATE DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 1 BKT UPPER DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 1 C BLOWER DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 1 CON BOX DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12...

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

Page 22: ...5 1 10W DA TP 2012 4 R07 10 23 24 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 7 R04 5 12 14 15 21 22 2007 000546 R CHIP 20KOHM 5 1 10W DA TP 2012 1 R01 2007 000671 R CHIP 2KOHM 5 1 10W DA TP 2012 5 R02 03 06 08 09 2007 000931 R CHIP 470OHM 5 1 10W DA TP 2012 1 R11 2007 000944 R CHIP 47KOHM 5 1 8W DA TP 3216 6 R17 20 26 28 2203 000260 C CERAMIC CHIP 10nF 10 50V X7R TP 2012 2 C17 18 2203 000444 C CE...

Page 23: ...ACITOR HIGH VOLTAGE DIODE TO CHASSIS MAGNETRON SYMBOL ORG RED RED BRN RED BLK COLOR ORANG BROWN RED BLACK CONDITION OF OVEN DOOR IS OPENED BRN BROWN WHT WHITE RED RED BLK BLACK Y G YELLOW GREEN BLU BLUE ORG ORANGE 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 POIN ...

Search results

Summary of Contents for CE287DNR

Reviews:

Related manuals for CE287DNR

Brands by name

Popular brands

Samsung CE287DNR, Service Manual

Search results

Summary of Contents for CE287DNR

Reviews:

Related manuals for CE287DNR

Brands by name

Popular brands