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Samsung Electronics

9. Wiring Diagram & Operating Sequence

MODEL : CM1019,CM1029

9-1 Wiring Diagram (CM1019/1029)

Summary of Contents for CM1019

Page 1: ...VEN 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 Circuit Diagrams and Parts List 9 Wiring Diagram Operating Sequence P 30sec ...

Page 2: ...e is blown by the Interlock Monitor Switch Replace all of the following at the same time Primary and door sensing switches 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 Alteration Warning Use exact replacement parts only i e only ...

Page 3: ...fied limits check each of the special components Precaution 1 2 Special High Voltage Precautions Note Touch chassis side first then short to the high voltage capacitor terminal by using a screwdriver 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...

Page 4: ...ON OM75P 20 ESS COOLING METHOD FAN MOTOR OUTSIDE DIMENSIONS 464 W x 368 H x 557 D NET WEIGHT 25 Kg SHIPPING WEIGHT 28 Kg 2 2 Table of Specifications CM1029 MODEL CM1029 ITEM TIMER Max 25 min POWER SOURCE 230V 50HZ AC POWER CONSUMPTION MICROWAVE 1 700W OUTPUT POWER 1 000W IEC 705 OPERATING FREQUENCY 2 450MHz MAGNETRON OM75P 20 ESS COOLING METHOD FAN MOTOR OUTSIDE DIMENSIONS 464 W x 368 H x 557 D NE...

Page 5: ...STOP CANCEL PAD START BUTTON CEILING COVER SAFETY INTERLOCK HOLES VARIABLE COOKING POWER CONTROL DIAL TIMER DIAL DOOR LATCHES PLATE TRAY P 30sec OVEN LAMP 230V 25W DISPLAY OVEN LAMP COVER DOOR HANDLE DOOR CONTROL PANEL 30sec PAD STOP CANCEL PAD START BUTTON CEILING COVER SAFETY INTERLOCK HOLES 3 2 Features CM1029 DOOR LATCHES PLATE TRAY ...

Page 6: ...6 530 43 26 557 3 3 Control Panel CM1029 1 DISPLAY 2 PROGRAM PAD 3 PROGRAM LOCK PAD 4 NUMBER PADS TIME MEMORY PROGRAMMING 5 POWER LEVEL SELECTOR PAD 6 DEFROST SELECTOR PAD 7 DOUBLE QUANTITY PAD 8 30sec PAD ONE TOUCH COOK PAD 9 STOP CANCEL PAD 10 START BUTTON P 30sec 1 2 4 3 5 6 7 8 9 10 Operating Instructions 3 4 2 External Views CM1029 ...

Page 7: ...me on digital display will count down 7 When all time is elapsed the end of cycle Beep Tone will sound 4 times and all heating will stop The oven lamp will go off For 1 min the display shows and the cooling fan will keep working in order to cool down the interior parts During the time the fan will not stop even when you open the door 1 min later it will stop and ON appears again Food may be remove...

Page 8: ...king settings before starting cooking simply press once Using the Defrost Feature The Defrost feature enables you to defrost meat poultry fish NOTE Only use containers that are microwave safe 1 Open the door 2 Place the frozen food in the centre of the plate tray 3 Close the door 4 Rotate the Variable Cooking Power Control dial to the DEFROST HIGH or DEFROST LOW as you wish Result The DEFROST indi...

Page 9: ...3 Put the food into a suitable container place it in the centre of the oven and then close the door securely Result The oven lamp will go off 4 Select the desired power level by pressing the Power Level Selector pad Result The selected power level will be displayed in the display window 5 Set the desired heating time by pressing the Number pads Result The selected time is displayed in the display ...

Page 10: ...w defrost level and time Repeat Feature You can repeat the previous cooking setting regardless of manual or automatic memory heating by pressing the START button The oven starts with exactly the same heating time and power level that were used in the last operation NOTE The repeat feature will be cancelled once the power source is cut off Using 30sec Pad This is a ONE TOUCH COOK pad By touching th...

Page 11: ...riationsÓ on page 8 The NUMBER pads will not operate or respond when you press a cooking time exceeding the maximum value NOTE It is not possible to set a cooking time for longer than the maximum time allowed on the chosen program The power level indicator will flash and it is advisable to press CANCEL and to enter a new power level and cooking time 5 Hold down PROGRAM LOCK pad and then press PROG...

Page 12: ... the food into a suitable container place it in the centre of the oven and then close the door securely Result The oven lamp will go off 4 Press NUMBER pad Result After 2 seconds the selected memory program automatically starts heating Stopping the Cooking You can stop cooking at any time so that you can Check the food Turn the food over or stir it Leave it to stand To stop the cooking Temporarily...

Page 13: ...cording to its type and quantity You can choose between the power levels below Power Level Percentage CM1019 1029 HIGH 100 1000 W MEDIUM 70 700 W LOW 50 500 W HIGH DEFROST 30 300 W LOW DEFROST 18 180 W You cannot set the cooking time longer than maximum value allowed to each specific power level see below Power Level Max Time HIGH 25 min MEDIUM 40 min LOW 40 min HIGH DEFROST 50 min LOW DEFROST 50 ...

Page 14: ...ke out the magnetron very carefully 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 See page 19 for adjustment instructions 1 Discharge the high voltage capacitor 2 Disconnect all the leads...

Page 15: ...dling Door C as is fragile NOTE The thickness of the flat screwdriver or thin metal plate inserted into the gap should be 0 5mm or less 3 Remove 2 screws securing the Door Handle to the Door E AssÕy 4 Unbend the 2 metal tabs at both ends of the Door Handle to remove the Door Handle Cover from the Door Handle Upper Hinge Lower Hinge Spring Key 2 screws securing Door Handle Key Door Pin Key Screen B...

Page 16: ...h the coupler 5 Connect all the leads to the drive motor 6 Screw the drive motor to the bracket motor with a screw driver 4 5 2 Replacement of AssÕy Stirrer 1 Remove a screw securing the drive motor 2 Open the door 3 Hold side stoppers of ceiling cover AssÕy Stirrer Cover with both hands and pull them in and down 4 Take the ceiling cover out of the oven cavity 5 Remove plastic clips securing the A...

Page 17: ...9 6 Remove Control Box AssÕy 7 To replace Digitron remove 2 screws securing the PCB4 8 To replace Start Button Circuitry remove 3 screws securing the PCB3 CM1029 9 Unbend the metal tabs holding the Panel Base to Control Box body 4 6 2 Removal of main P C Board 1 Remove Control Box Assembly by following the steps 1 5 at left 2 Remove 4 screws securing the main PCBoard to the bracket PCBoard NOTE Wh...

Page 18: ...ing it clockwise 3 Replace with a new lamp by rotating it counter clockwise NOTE If it is necessary to replace the lamp holder you can disconnect lead wires by pushing down on the hole of lead wires using a long pointed tool 1 Open the door 2 Remove the tray by inserting a thin metal tool into the gap between the oven wall and the tray silicon cover 3 Insert the new tray by tilting it across the o...

Page 19: ...gnetron in order to remove HVC 1 Remove the outer panel and back cover 2 Discharge the high voltage capacitor 3 Remove HVT wire and H V Fuse 4 Remove screws securing HVC bracket Disassembly and Reassembly 4 10 Replacement of High Voltage Capacitor H V Capacitor ...

Page 20: ...N 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 touching any oven components or wiring always unplug the oven from its power source and discharge the high voltage capacitor Filament Terminals Primary Terminals Secondary Terminal Terminal Resistance Secondary Approx 75 W Filam...

Page 21: ...rews holding the Latch Body to the oven assembly 3 Reconnect to Monitor switch and check the continuity of the monitor circuit and all latch switches again by following the components test procedures 4 Confirm that the gap between the switch housing and the switch actuator is no more than 0 5mm when door is closed 1 The relays are located on the PCB Ass y Isolate them from the main circuit by disc...

Page 22: ... liter glass vessel with water 2 Stir water in glass vessel with thermometer and record glass vessel s temperature T1 10 1ûC 3 After moving the water into another glass vessel place it in the center of the cooking tray Set the oven to high power and operate for 45 seconds 3 seconds included as a holding time of magnetron oscillation 4 When heating is finished stir the water again with the thermome...

Page 23: ... the areas making sure that the probe end at the base of the cone does not get closer than 2 inches to any metal If it gets closer than 2 inches erroneous readings may result 5 Measured leakage must be less than 4mW cm2 after repair or adjustment 5 10 2 Note on Measurement 1 Do not exceed the limited scale 2 The test probe must be held on the grip of the handle otherwise a false reading may result...

Page 24: ...rimary latch switch NOTE1 monitor door sensing switch Fuse blown out 3 Defective monitor switch NOTE1 10A 1 6A 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 main or power relay contacts and if it has continuity replace main or power relay also NOTE 2 When HVTransformer is repla...

Page 25: ...over Back Cover Back Drive motor not 1 Open or loose wiring of drive motor Check the wire of drive motor work Assy stirrer 2 Defective drive motor Replace drive motor does not rotate 3 Defective assÕy stirrer Replace assÕy stirrer Oven stops operating 1 Operation of thermal cutout Adjust door and latch switches during cooking Magnetron or Cavity 2 Fan motor does not rotate Replace Fan motor Sparks...

Page 26: ...r input power frequency Check if power frequency is 50Hz 2 Defective AssÕy Main PCB Replace AssÕy Main PCB or MICOM E5 1 Memory IC EEPROM IC failure Check Memory IC IC3 and replace if defective CM1029 2 MICOM failure Replace Assy Main PCB or MICOM 6 2 Error Codes Corrections ...

Page 27: ...d Views and Parts List 7 1 Exploded Views CM1029 CM1029 CM1019 CM1019 48 18 18 19 33 1 2 4 44 5 6 7 8 9 10 39 16 17 25 26 50 27 33 36 14 37 40 42 45 47 49 52 3 11 12 13 51 15 18 19 20 21 22 23 46 28 29 30 31 41 43 53 54 32 34 35 38 P ...

Page 28: ...RE HARNESS D 230V50Hz CM1819 EUROPE 1 CM1019 19 DE39 40113B WIRE HARNESS F 100V 50 60HZ RE CH1 1 CM1029 20 DE39 40692A WIRE HARNESS B 230V50HZ CM1819 29 EUROPE 1 21 DE39 40694A WIRE HARNESS C 230V50Hz CM1819 29 EUROPE 1 22 DE61 50520A BRACKET PCB SECC T0 8 CM 1819 1 23 DE31 10164C MOTOR DRIVE M2LJ29A702 220 240V 29 1 34 9RPM 1 24 DE92 90515A ASSY STIRRER CM1819 CM1829 1 25 DE69 90054A CLIP STIRRER...

Page 29: ...AM T10 W50 L530 1 46 DE63 00001A CUSHION LAMP T35 W20 L230 CM1819 1 47 3601 001126 FUSE FERRULE 250V 1 6A QUICK ACTING CERAMIC 1 48 DE93 90112A ASSY B RESISTOR CM1819 29 10W 15 2 49 DE61 50541A BRACKET EARTH SGCC2 T1 0 W15 L8 1 50 DE71 60424A COVER CEILING MICA_SHEET T0 5 W348 L319 CM 1 1 51 DE47 20017A THERMOSTAT PW 2N 150 60 187Z 250V 7 5A 1 1 52 DE63 90191B CUSHION GUIDE B PUT FOAM T10 W50 2530...

Page 30: ... 3 DE64 90145A DECORATION DOOR ABS CM1819 1 4 DE67 20174A SCREEN DOOR B TEMP GLASS T3 2 1 5 DE64 90146A DECORATION COV DOOR STS CM1819 1 6 DE64 20128A HANDLE BODY ABS Nicr COATING CM1019 1 7 DE71 60433A COVER HANDLE STS430 T0 5 CM1819 1 8 DE64 40296A DOOR KEY CR3C 2 9 DE60 60080A PIN KEY A M3 95 L21 STS304 CM 1819 2 10 DE61 70144A SPRING KEY PI6 5 D0 8 CM1819 2 11 DE61 80138A HINGE SCP1 T3 0 W24 5...

Page 31: ...ANEL R RESIN ABS CM1819 Ni Cr COATING 1 6 DE66 20212A BUTTON START RESIN ABS CM1819 Ni Cr platin 1 7 DE64 10143A KNOB POWER RESIN ABS CM1819 Ni Cr platin 1 8 DE64 10144A KNOB TIMER RESIN ABS CM1819 Ni Cr platin 1 9 DE66 20211B BUTTON SELECT RESIN ABS CM1829 Ni Cr platin 30SEC 1 10 DE67 40161A WINDOW DISPLAY RESIN PMMA 82555 CM 1819 1 11 DE39 40695A WIRE HARNESS D 230V50Hz CM1819 EUROPE 1 12 DE39 4...

Page 32: ...71 60426A COVER PANEL STS430 T0 5 TC CM1829 1 5 DE71 60428B COVER PANEL L RESIN ABS CM1819 Ni Cr coating 1 6 DE71 60429B COVER PANEL R RESIN ABS CM1819 Ni Cr COATING 1 7 DE66 20212A BUTTON START RESIN ABS CM1819 Ni Cr plating 1 8 DE67 40161A WINDOW DISPLAY RESIN PMMA 82555 CM 1819 1 9 DE39 40694A WIRE HARNESS C 230V50Hz CM1819 29 EUROPE 1 10 DE39 40692A WIRE HARNESS B 230V50HZ CM1819 29 EUROPE 1 1...

Page 33: ...TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 BKT MOTOR DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 DUCT FAN DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 DUCT MGT L DE60 10082H SCREW A 2S 4X12 TOOTHED 1 DUCT FAN DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 MEM EARTH DE60 10121A SCREW TAP TH 2 4X8 FE FZY 77128 540 081 SA 3 DECORATION DE60 10121A ...

Page 34: ...Samsung Electronics 33 8 P C B Circuit Diagrams and Parts List 8 1 P C B Circuit Diagram CM1019 ...

Page 35: ...Samsung Electronics 34 8 2 P C B Circuit Diagram CM1029 P C B Circuit Diagrams and Parts List ...

Page 36: ...IODE ZENER 1N4733A 5 1V 5 1W DO 41 TP 1 ZD1 0403 000537 DIODE ZENER 1N4749A 24V 5 1W DO 41 TP 2 ZD2 3 0501 000388 TR SMALL SIGNAL KSC815 NPN 400mW TO 92 BK 120 1 TR2 0504 001014 TR DIGITAL KSR1005 NPN 300mW 4 7K 10K TO 10 TR1 9 10 13 2001 000003 R CARBON 330ohm 5 1 8W AA TP 1 8x3 2mm 2 R31 32 2001 000290 R CARBON 10Kohm 5 1 8W AA TP 1 8x3 2mm 8 R3 13 15 19 21 24 2001 000290 R CARBON 10Kohm 5 1 8W ...

Page 37: ...GP 10x12 5mm 5 1 C03 2401 001415 C AL 470uF 20 35V GP TP 10x16 5mm 1 C02 2801 003214 CRYSTAL UNIT 4 194304MHz 50ppm 28 AAA 12pF 1 XTL1 3404 000282 SWITCH TACT 12Vdc 50mA 120 30gf 6 2x3 6mm 4 SW1 2 3 4 3711 000203 CONNECTOR HEADER 1WALL 3P 1R 3 96mm ANGLE SN 1 CN14 3711 000940 CONNECTOR HEADER BOX 4P 1R 2 5mm STRAIGHT SN 1 CN1 3711 000999 CONNECTOR HEADER BOX 5P 1R 2 50mm STRAIGHT SN 1 CN2 DE13 200...

Page 38: ...00537 DIODE ZENER 1N4749A 24V 5 1W DO 41 TP 11 ZD2 3 0501 000388 TR SMALL SIGNAL KSC815 NPN 400mW TO 92 BK 120 1 TR2 0504 001014 TR DIGITAL KSR1005 NPN 300mW 4 7K 10K TO 10 TR1 3 13 1103 001107 IC EEPROM 24LC02B 256x8BIT DIP 8P 300MIL 1 IC3 2001 000003 R CARBON 330ohm 5 1 8W AA TP 1 8x3 2mm 11 R31 32 2001 000290 R CARBON 10Kohm 5 1 8W AA TP 1 8x3 2mm 5 R3 13 15 19 2001 000290 R CARBON 10Kohm 5 1 8...

Page 39: ...AL 470uF 20 35V GP TP 10x16 5mm 1 C02 2801 003214 CRYSTAL UNIT 4 194304MHz 50ppm 28 AAA 12pF 1 XTL1 3404 000282 SWITCH TACT 12Vdc 50mA 120 30gf 6 2x3 6mm 2 SW5 6 3711 000203 CONNECTOR HEADER 1WALL 3P 1R 3 96mm ANGLE SN 1 CN14 3711 000881 CONNECTOR HEADER BOX 3P 1R 2 5mm STRAIGHT SN 2 CN13 9 3711 000940 CONNECTOR HEADER BOX 4P 1R 2 5mm STRAIGHT SN 1 CN1 3711 000999 CONNECTOR HEADER BOX 5P 1R 2 50mm...

Page 40: ...39 Samsung Electronics 9 Wiring Diagram Operating Sequence MODEL CM1019 CM1029 9 1 Wiring Diagram CM1019 1029 ...

Page 41: ...18 the coil of power relay are energized intermittently by ON and OFF cycle of 30 seconds in order to supply power source to the High Voltage Transformer and thus to oscillate the magnetron The relation between indications on the display window and the output power of the microwave oven is as shown in figure below Note One second inclued as a time for starttng the magnetron oscillation Wiring Diag...

Page 42: ...ting status of Power Relay when the START button is pressed Wiring Diagram Operating Sequence Operating Operating Time of Relays 100 70 50 power Sequence Note LAMP Lamp Relay 250V 5A MAIN Main Relay 250V 16A FAN Fan Motor Relay 250V 5A IR Inrush Relay 250V 5A POWER Power Relay 250V 16A ...

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