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13

Samsung Electronics

4. Disassembly and Reassembly

4-1 Replacement of Magnetron

Remove the magnetron including the shield case,
permanent magnet, choke coils and capacitors (all
of which are contained in one assembly).

1. Remove the outer panel.
NOTE: Before servicing, make sure to discharge

electric charge remaining on the high
voltage capacitors or wait for more than 5
min.

2. Remove the back cover.
3. Disconnect all lead wires from the magnetron.
4. Remove screws securing the duct-MGT and

duct-fan.

5. Remove the nut-flanges securing the

magnetron by using a box wrench.

6. Take 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.
3. Remove the mounting bolts securing the HVT.
4. Reconnect the leads correctly and firmly.

4-2 Replacement of High Voltage Transformer

Magnetron

Duct-Fan

Nut-Flange

Duct-MGT-L

Duct-
MGT-R

H. V. Trans

4 Mounting Bolts

LVT

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Содержание CM-1819

Страница 1: ...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 SEUK P 1 2 3 4 5 6 7 8 9 0 20sec ...

Страница 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 ...

Страница 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...

Страница 4: ...OR OUTSIDE DIMENSIONS 464 W x 368 H x 557 D 464 W x 368 H x 557 D NET WEIGHT 32 Kg 32 Kg SHIPPING WEIGHT 34 5 Kg 34 5 Kg 2 2 Table of Specifications CM 1829 CM 1429 MODEL CM 1829 CM 1429 ITEM TIMER Max 25 min Max 25 min POWER SOURCE 230V 50HZ AC 230V 50HZ AC POWER CONSUMPTION MICROWAVE 3 150W MICROWAVE 2 600W 240V 1 800W 240V 1 400W OUTPUT POWER IEC 705 IEC 705 230V 1 730W 230V 1 340W OPERATING FR...

Страница 5: ... BUTTON CEILING COVER SAFETY INTERLOCK HOLES VARIABLE COOKING POWER CONTROL DIAL TIMER DIAL DOOR LATCHES PLATE TRAY AIR FILTER P 1 2 3 4 5 6 7 8 9 0 20sec OVEN LAMP DISPLAY OVEN LAMP COVER DOOR HANDLE DOOR CONTROL PANEL 20sec PAD STOP CANCEL PAD START BUTTON CEILING COVER SAFETY INTERLOCK HOLES 3 2 Features CM 1829 CM 1429 DOOR LATCHES PLATE TRAY AIR FILTER ...

Страница 6: ...M 1429 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 20sec PAD ONE TOUCH COOK PAD 9 STOP CANCEL PAD 10 START BUTTON 1 2 4 3 5 6 7 8 9 10 P 1 2 3 4 5 6 7 8 9 0 20sec Operating Instructions 3 4 1 External Views CM 1819 CM 1419 3 4 2 External Views CM 1829 CM 1429 ...

Страница 7: ... time 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 rem...

Страница 8: ...y cooking 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...

Страница 9: ...on 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 displ...

Страница 10: ...s advisable to press CANCEL and enter a new 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 Repeat feature does not support for 20sec pad The repeat feature will be cancelled once...

Страница 11: ... Variations on page 12 13 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 pres...

Страница 12: ...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 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 Temporar...

Страница 13: ...uantity You can choose between the power levels below Power Level Percentage CM 1819 1829 Percentage CM 1419 1429 HIGH 100 1800 W 100 1400W MEDIUM 70 1260 W 70 980W LOW 50 900 W 50 700W HIGH DEFROST 20 360 W 25 360W LOW DEFROST 10 180 W 13 180W 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...

Страница 14: ...n 5 Remove the nut flanges securing the magnetron by using a box wrench 6 Take 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 in...

Страница 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 Ass y 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...

Страница 16: ...ler 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 Ass y Stirrer 1 Remove a screw securing the drive motor 2 Open the door 3 Hold side stoppers of ceiling cover Ass y 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 Ass y Stirr...

Страница 17: ...9 6 Remove Control Box Ass y 7 To replace Digitron remove 2 screws securing the PCB4 8 To replace Start Button Circuitry remove 3 screws securing the PCB3 CM 1829 1429 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 N...

Страница 18: ...ver 2 Remove the lamp by rotating 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 t...

Страница 19: ...are not detachable from the Air Filter NOTE It is not necessary to remove Magnetron 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 4 10 Replacement of Air Filter Plastic Spacer Pins Disassembly and Reassembly 4 11 Replacement of High Voltage Capacitor H V Capacitor ...

Страница 20: ...ON 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 98Ω Filam...

Страница 21: ... 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 disconnecting the leads 2 Opera...

Страница 22: ...one liter glass vessel with water 2 Stir water in glass vessel with thermometer and record glass vessel s temperature T1 10 1 C 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 26 seconds for CM 1819 1829 or 33 seconds for CM 1419 1429 exactly 3 seconds included as a holding time of magnetron oscillation 4 When...

Страница 23: ...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 when the operator s hand is between the handle and the probe 3 When high leakage is suspected do not move the probe ho...

Страница 24: ...ary 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 replaced...

Страница 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 ass y stirrer Replace ass y stirrer Oven stops operating 1 Operation of thermal cutout Adjust door and latch switches during cooking Magnetron or Cavity 2 Ventilation motor does not rotate Replace ventilat...

Страница 26: ...ow the instructions above 3 Ventilation motor failure and Check if the ventilation motor is operative magnetron overheating and replace the motor if defective E41 1 Main Relay RY1 or Check Main Relay RY1 Power Relay RY2 Power Relay RY2 failure Primary S W and Monitor S W and replace 2 Loose lead wires of relay if defective 3 Primary or Monitor S W Check if lead wires are loosened failure and conne...

Страница 27: ...rts List 7 1 Exploded Views CM 1829 CM 1429 CM 1829 1429 CM 1819 CM 1419 CM 1819 1419 48 18 19 33 1 2 4 44 39 5 6 7 8 9 10 14 16 17 24 25 26 50 27 33 36 37 40 42 45 47 49 52 3 11 12 13 51 15 18 19 20 21 22 23 28 29 30 31 41 43 46 53 54 32 34 35 38 ...

Страница 28: ...D 1 CM 1419 19 DE39 40695A WIRE HARNESS D 230V50Hz CM 1819 EUROPE 1 CM 1419 1819 19 DE39 40113B WIRE HARNESS F 100V 50 60HZ RE CH1 1 CM 1829 1429 20 DE39 40692A WIRE HARNESS B 230V50HZ CM1819 29 EUROPE 1 21 DE39 40694A WIRE HARNESS C 230V50Hz CM 1819 29 EUROPE 1 22 DE61 50520A BRACKET PCB SECC T0 8 CM 1819 1 23 DE31 10164B MOTOR DRIVE M2CK34A709 H B 120V60HZ 34 9r 2 24 DE92 90515A ASSY STIRRER CM ...

Страница 29: ...A TIME DELAY CERAMIC 6 2 46 2301 001204 C FILM PEF 1 5uF 5to 10 450VAC 48x17 1 47 3601 001126 FUSE FERRULE 250V 1 6A QUICK ACTING CERAMIC 1 48 DE93 90112A ASSY B RESISTOR CM 1819 29 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 DE32 10013A SENSOR THERMISTOR PT 312 K2 1 53...

Страница 30: ... 1 3 DE64 90145A DECORATION DOOR ABS CM 1819 1 4 DE67 20174A SCREEN DOOR B TEMP GLASS T3 2 1 5 DE64 90146A DECORATION COV DOOR STS CM 1819 1 6 DE64 20123A HANDLE ZN DICASTING 500G CM 1819 1 7 DE71 60433A COVER HANDLE STS430 T0 5 CM 1819 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 CM 1819 2 11 DE61 80138A HINGE SCP1 T3 0 W2...

Страница 31: ...19 Ni Cr platin 1 5 DE71 60429A COVER PANEL R RESIN ABS CM 1819 Ni Cr PLATIN 1 6 DE66 20212A BUTTON START RESIN ABS CM 1819 Ni Cr platin 1 7 DE64 10143A KNOB POWER RESIN ABS CM 1819 Ni Cr platin 1 8 DE64 10144A KNOB TIMER RESIN ABS CM 1819 Ni Cr platin 1 9 DE66 20211A BUTTON SELECT RESIN ABS CM 1829 Ni Cr platin 1 10 DE67 40161A WINDOW DISPLAY RESIN PMMA 82555 CM 1819 1 11 DE39 40695A WIRE HARNESS...

Страница 32: ...SHEET 240V 0 5A 200GF 265x5 1 4 DE71 60426A COVER PANEL STS430 T0 5 TC CM 1829 1 5 DE71 60428A COVER PANEL L RESIN ABS CM 1819 Ni Cr plating 1 6 DE71 60429A COVER PANEL R RESIN ABS CM 1819 Ni Cr PLATING 1 7 DE66 20212A BUTTON START RESIN ABS CM 1819 Ni Cr plating 1 8 DE67 40161A WINDOW DISPLAY RESIN PMMA 82555 CM 1819 1 9 DE39 40694A WIRE HARNESS C 230V50Hz CM 1819 29 EUROPE 1 10 DE39 40692A WIRE ...

Страница 33: ...ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 DUCT FAN DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 DUCT MGT L DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 DUCT MGT R 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 SCREW TAP TH 2 4X8 FE FZY 77128 540 0...

Страница 34: ...Samsung Electronics 34 8 2 P C B Circuit Diagram CM 1829 CM 1429 P C B Circuit Diagrams and Parts List ...

Страница 35: ...1 22 0402 000559 DIODE RECTIFIER D4G 400V 1A T 1 12 D1 5 9 14 23 0403 000525 DIODE 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 12 TR1 3 9 10 13 2001 000003 R CARBON 330ohm 5 1 8W AA TP 1 8x3 2mm 2 R31 32 2001 000290 R CARBON 10Koh...

Страница 36: ...OX 5P 1R 2 50mm STRAIGHT SN 1 CN2 DE13 20009A IC KA7533 DIP 1 IC2 DE39 60001A WIRE SO COPPER PI0 6 SN T 52MM TAPING_WIRE 35 J4 38 J02 CM 1419 DE41 10441A P C B MAIN FR 1 T1 6 W197 L296 CM 1819 1 DE93 30528A ASSY CONTROL PANEL CM1419 1819 1 DE64 10143A KNOB POWER RESIN ABS CM 1819 Ni Cr plating 1 DE64 10144A KNOB TIMER RESIN ABS CM 1819 Ni Cr plating 1 DE66 20211A BUTTON SELECT RESIN ABS CM 1829 Ni...

Страница 37: ... DO 41 TP 1 ZD1 0403 000537 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 12 TR1 3 13 1103 001085 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 10 R3 13 15 19 21 24 36 3...

Страница 38: ...03 2401 001412 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 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...

Страница 39: ...39 Samsung Electronics 9 Wiring Diagram Operating Sequence 9 1 Wiring Diagram CM 1819 1419 1829 1429 ...

Страница 40: ... operate not together but alternately That means power relay 1 should not work when the power relay 2 does or relay 2 should not work when the power relay 1 does The power realy 1 is energized for 15 seconds and then the power relay 2 is energized for 15 seconds in turn One complete ON and OFF cycle time of the power relay 1 and 2 is 30 seconds The relation between indications on the display windo...

Страница 41: ...OST power position Inrush Relay1 and Power Relay1 are programmed to work with Inrush Relay2 and Power Relay2 not simultaneously but alternately 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 VENT Ventilation Motor Relay 250V 5A IR1 Inrush Relay1 250V 5A IR2 Inrush Relay2 250V 5A P1 Power Relay1 250...

Страница 42: ...rimary terminal of High Voltage Transformer when the microwave oven is operating If any abnormal condition eg Micro S W Relay open is detected the error code E41 E42 shows on the display window When the error code appears in the display window check the waveform A B C or D In case of Power Relay 1 RY2 check the waveform A B below In case of Power Relay 2 RY5 check the waveform C D below Wiring Dia...

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