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SERVICE

MICROWAVE OVEN

SESC
MICROWAVE OVEN
CM1319 / CM1329
CM1619 / CM1629
CM1919 / CM1929
Manual
CONTENTS
8. Schematic Diagrams
Operating Sequence

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Table of Contents
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Summary of Contents for Samsung CM1319

  • Page 1: Table Of Contents

    MICROWAVE OVEN CM1319 / CM1329 CM1619 / CM1629 CM1919 / CM1929 SERVICE Manual 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. Schematic Diagrams 9.
  • Page 2 PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be (c) Before turning on microwave power operated with the door open. for any service test or inspection within (b) Make the following safety checks on the microwave generating all ovens to be serviced before activating...
  • Page 3: Precaution

    1. Precaution Follow these special safety precautions. Although the microwave oven is completely safe during ordinary use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as potentially lethal high voltages and currents. 1-1 Safety precautions ( 1.
  • Page 4: Special High Voltage Precautions

    1-2 Special High Voltage Precautions 1. High Voltage Warning Do not attempt to measure any of the high Discharge the 2 High Voltage Capacitors voltages --this includes the filament voltage before servicing! 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)
  • Page 5: Specifications

    2. Specifications 2-1 Table of Specifications MODEL ITEM CM1919/CM1929 CM1619/CM1629 CM1319/CM1329 TIMER Max. 25min Max. 25min Max. 25min POWER SOURCE 230V 50Hz, AC 230V 50Hz, AC 230V 50Hz, AC POWER CONSUMPTION MICROWAVE : 3200W MICROWAVE : 3000W MICROWAVE : 2600W...
  • Page 6: Operating Instructions

    3. Operating Instructions 3-1 Features (CM1319/CM1619/CM1919) VARIABLE COOKING POWER CONTROL DIAL OVEN LAMP (230V 25W) TIMER DIAL +20sec PAD DISPLAY STOP/CANCEL PAD OVEN LAMP COVER START BUTTON CEILING COVER DOOR HANDLE SAFETY INTERLOCK HOLES DOOR PLATE TRAY DOOR LATCHES AIR FILTER...
  • Page 7 3-3 Control Panel (CM1329 / CM1629 / CM1929) + 20sec 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.
  • Page 8 3-5. Operation Guide (CM1919/CM1619/CM1319) Cooking/Reheating 1. Make sure the oven is plugged into a properly earthed electrical outlet and ’ON’ appears in the display window. 2. Open the door. The oven lamp will be turned on. 3. Put the food into a suitable container, place it in the center of the oven and then close the door securely.
  • Page 9 3-5. Operation Guide (CM1919/CM1619/CM1319) To stop the cooking You can stop cooking at any time so that you can: Á Check the food Á Turn the food over or stir it Á Leave it to stand * Temporarily ; Open the door or press button once.
  • Page 10 3-3 Operation Guide (CM1929/CM1629/CM1329) One-stage cooking This oven is preset at the factory for automatic operation. Make sure the oven is plugged into a properly earthed electrical outlet and ’ON’ appears in the display window. Open the door (The oven lamp will be turned on.). Put the food into a suitable container, place it in the centre of the oven and then close the door securely (The oven lamp will go off.).
  • Page 11 3-3 Operation Guide (CM1929/CM1629/CM1329) Multi-stage cooking 1. Select the desired power level by pressing the POWER LEVEL Selector pad or DEFROST pad. Result : The selected power level will be displayed in the display window. 2. Set the desired heating time by pressing the NUMBER pads. Result : The selected time is displayed in the display window.
  • Page 12 3-3 Operation Guide (CM1929/CM1629/CM1329) Using the Defrost Feature NOTE : When the oven was operating for longer than 25 min under Defrosting cycle, you can NOT change the power level from Defrosting to Heating(Cooking/Reheating) mode. NOTE : The oven is designed not to work when power level is set to 0 mode between the heating mode and the defrosting mode.
  • Page 13 3-3 Operation Guide (CM1929/CM1629/CM1329) One-stage 1. Hold down PROGRAM LOCK( ) and then press PROGRAM ( ) pad. Hold together for 2 sec. * Be sure to press the pads firmly. Result : PROG indicator appears in the digital display. 2.
  • Page 14 3-3 Operation Guide (CM1929/CM1629/CM1329) Multi-stage 1. Hold down PROGRAM LOCK( ) and then press PROGRAM( ) pad. Hold together for 2 sec. * Be sure to press the pads firmly. Result : PROG indicator appears in the digital display. 2. Press appropriate NUMBER pad for the desired memory number. Result : Selected memory program code appears below the PROGRAM indicator.
  • Page 15: How To Operate Memory Cooking

    If you want to cancel any cooking settings before starting cooking, simply press CANCEL pad once. Power Levels and Time Variations (CM1919/1929/CM1619/1629/CM1319/1329) The power level function enables you to adapt the amount of energy dissipated and thus the time required to cook or reheat your food, according to its type and quantity.
  • Page 16: Disassembly And Reassembly

    4. Disassembly and Reassembly 4-1 Replacement of Magnetron Remove the magnetron including the shield case, permanent magnet, choke coils and capacitor (all of which are contained in one assembly). Duct-MGT-L 1. Remove the outer panel. Nut-Flange Duct-Fan NOTE : Before servicing, make sure to discharge electric charge remaining on the high voltage capacitors or wait for more than 5 min.
  • Page 17: Replacement Of Door Assembly

    4-3 Replacement of Door Assembly 4-3-1 Removal of Door Assembly NOTE : Be sure to wear gloves when you disassemble or assemble the parts. 1. Remove hex bolts securing the upper hinge and lower hinge. Then remove the door assembly. 2.
  • Page 18: Replacement Of Drive Motor

    4-4 Replacement of Fuse and H.V.Fuse 1. Disconnect the oven from the power source. 2. Remove defective fuse from Noise filter. 3. When replacing the fuse, be sure to use an exact replacement part. If new fuse blows out again after replacement, check the primary interlock switch, door sensing switch and interlock monitor switch.
  • Page 19 4-6 Replacement of Control Box Assy and P.C.Board 4-6-1 Removal of Control Box Assembly 1. Be sure to discharge any static electric charge built up on your body and avoid touching the touch control circuitry. 2. Remove 3 screws securing the Control Box Ass’y to the oven cavity. 3.
  • Page 20: Replacement Of Lamp

    4-7 Replacement of Fan Motor 1. Remove the outer panel and back-cover. Ventilation Motor 2. Discharge the high voltage capacitor. 3. Remove all the lead wires from Magnetron and High Voltage Capacitor. 4. Remove 2 screws securing the duct fan. 5.
  • Page 21 4-10 Replacement of Air Filter 1. Pull out the spacer pins at both ends of the Air Filter. Then the locking clamps inside are released. 2. Lift the Air Filter off the post carefully. Note : Spacer pins are not detachable from the Air Filter. Plastic Spacer Pins 4-11 Replacement of High Voltage Capacitor NOTE : It is not necessary to remove Magnetron in...
  • Page 22: Alignment And Adjustments

    5. Alignment and Adjustments PRECAUTION 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.
  • Page 23: High Voltage Diode

    5-5 High Voltage Diode 1. Isolate the diode from the circuit by disconnecting its leads. 2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used to check the front-to back resistance of the diode (otherwise an infinite resistance may be read in both directions).
  • Page 24: Output Power Of Magnetron

    1000 : Water (cc) * 22 : CM1919/1929(1900W) T : Temperature Rise (T2-T1) * 26 : CM1619/1629(1600W) MC : Cylindrical borosilicate glass weight * 32 : CM1319/1329(1300W) : Room temperature 7. Normal temperature rise for this model is 9 to 11 at ’HIGH’.
  • Page 25: Record Keeping And Notification After Measurement

    5-10 Check for Microwave Leakage 5-10-1 Procedure for Measurement of Microwave Energy Leakage 1) Pour 275 ?5cc of 20 ( 68 F 9 water in a beaker which is graduated to 600cc, and place the beaker in the center of the oven. 2) Start to operate the oven and measure the leakage by using a microwave energy survey meter.
  • Page 26: Troubleshooting

    6. Troubleshooting PRECAUTION 1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. 2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT. 3. DISCHARGE THE HIGH VOLTAGE CAPACITOR. 4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT LEAD WIRES FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON.
  • Page 27 6-1 Electrical Malfunction(continued) SYMPTOM CAUSE CORRECTIONS Oven lamp goes off 1. Loose lead wire or open lamp Tighten lamp lead wire or replace filament with a new lamp 1. Misadjustment of latch switch 2. Defective primary latch switch Microwave output is low;. Consult electrician.
  • Page 28 6-2 Error Codes & Corrections Code Cause Corrections 1. Improper input power freqency. Check if power frequency is 50Hz. 2. Defective Ass’y Main P.C.B Replace Ass’y Main P.C.B or MICOM 1. Overheating inside cavity Check if the oven was operating without load or (no load or little load aging) too little load and plug the power cord in again.
  • Page 29: Exploded Views And Parts List

    7. Exploded Views and Parts List 7-1 Exploded Views MM03 MM01 MM49 MM36 MM59 MM11 MM06 MM10 MM85 MM07 MM44 MM43 MM38 MM17 MM72 MM17 MM40 MM22 MM30 MM05 MM29 MM31 MM32 MM14 MM87 MM55 MM53 MM48 MM89 MB05 MM28 MB02 MB041 MB02...
  • Page 30: Main Parts List

    MM01 DE70-30123A PANEL-OUTER -,STS430,T0.6,CM-1819,-,-,-, MM03 DE39-00025A WIRE HARNESS-A -,-,-,-,CM1819 MM05 DE91-40105A ASSY NOISE FILTER SN-1829,230V/50Hz,-,-, MM06 DE91-50093B ASSY-MOTOR FAN CM1419/29,240V,2250rpm,CM CM1319/29 MM06 DE91-50093A ASSY-MOTOR FAN CM1819/29,240V,2250rpm,CM1819/ CM1619/29 MM06 DE91-50093L ASSY-MOTOR FAN 240V,2250RPM,CM1929/1919,COM CM1919/29 MM07 DE96-00180A ASSY-POWER CORD CM1929/XEU,230V50HZ,UK,U MM08 DE03-00009A MAGNETRON 2M244-M12E,1KW/2460MHZ,3.15V/4...
  • Page 31: Door Parts List

    7-3 Door Parts List MD06 MD08 MD04 MD15 MD17 MD16 MD10 MD08 MD13 MD07 MD14 MD18 Code No. Description Specification Q’ty Remark MD01 DE92-40195A ASSY DOOR CM-1819,STS,1800W,-,-,-,- MD03 DE67-20176A SCREEN-DOOR(A) -,T3.2,CM-1819,-,-,-,-,-, MD04 DE92-50132B ASSY DOOR-E CM-1819,COATING,BLK MD04 DE92-50132A ASSY DOOR-E CM1819,WELDING,- MD06 DE64-40298A...
  • Page 32 7-4 Control Box Parts List (CM1319/1619/1919) MC20 MC21 MC22 MC16 MC06 MC11 MC09 MC14 MC18 MC17 MC07 MC13 MC15 MC19 Code No. Description Specification Q’ty Remark MC01 ASSY CONTROL-BOX S.N.A MC06 DE67-40161A WINDOW-DISPLAY -,RESIN-PMMA,82555,CM-181 MC07 RC-CM1819VI-10 ASSY PCB PARTS CM1219,230V50HZ...
  • Page 33 7-4 Control Box Parts List (CM1329/1629/1929) MC20 MC21 MC22 MC06 MC18 MC17 MC07 MC13 MC15 MC16 MC02 MC19 Code No. Description Specification Q’ty Remark MC01 ASSY CONTROL-BOX S.N.A MC02 DE34-00158A SWITCH MEMBRANE CM1929/XEU,COMMERCIAL,-, MC06 DE67-40161A WINDOW-DISPLAY -,RESIN-PMMA,82555,CM-181 MC07 RC-CM1819VI-11 ASSY PCB PARTS CM1229,230V50HZ CM1329 MC07...
  • Page 34: Standard Parts List

    7-4 Standard Parts List Code No. Description Specification Q’ty Remark DE60-20014A BOLT-FLANGE M5,L10,MSWR3,FEFZY,-,-,-,-,- 6011-001140 BOLT-STUD M4,L8,Ni PLT,BSW DE60-30015A NUT-FLANGE M5,P0.8,MSWR10,FEFZY,-,-,-,-,- DE60-10082H SCREW-A -,-,-,-,2S-4X12,TOOTHED,-,-,-,- DE60-10098A SCREW-ASSY TAP TITE -,GLD,SWRCH18A,ZPC2,PH,TC,-,M4X8,WT,- BKT-HIN-L DE60-10098A SCREW-ASSY TAP TITE -,GLD,SWRCH18A,ZPC2,PH,TC,-,M4X8,WT,- BKT-HIN-U DE60-10098A SCREW-ASSY TAP TITE -,GLD,SWRCH18A,ZPC2,PH,TC,-,M4X8,WT,- BKT-MOTOR DE60-10098A SCREW-ASSY TAP TITE...
  • Page 35 8. P.C.B Diagrams 8-1 P.C.B Diagrams ÁÂÃÃÂÁ...
  • Page 36 8-2 P.C.B Parts List Code No. Description Specification Q’ty Remark 3501-001155 RELAY-MINIATURE 24VDC,200MW,3000MA,1FORMA,10MS,10MS RY3,RY4,RY6,RY7 3501-001209 RELAY-POWER 24V DC,0.53W,-,1FORMA,9.3MS,10MS RY1,RY2,RY5 3711-000570 CONNECTOR-HEADER BOX,10P,1R,2.50mm,ANGLE,SN CN14 3711-000577 CONNECTOR-HEADER BOX,10P,1R,2.5mm,STRAIGHT,SN 3711-000616 CONNECTOR-HEADER BOX,11P,1R,2.5mm,STRAIGHT,SN CN10,CN12 3711-001154 CONNECTOR-HEADER BOX,9P,1R,2.5mm,STRAIGHT,SN CN11,CN9 DE07-10088A VF DISPLAY SVM-06MM29,REDDISHORG/GRN,6G,5, DSP1 DE09-00108A IC MICOM TMP87PM14F,OTP-32K,QFP,8BIT-64PIN,-,-,-,- DE13-20016A...
  • Page 37: Wiring Diagram

    9. Wiring Diagram & Operating Sequence 9-1 Wiring Diagram - 35 -...
  • Page 38: Description Of Operating Sequence

    2 is 30 seconds. The relation between indications on the display window and the output power of the microwave oven is as shown in figure below. CM1919/CM1929 CM1619/CM1629 CM1319/CM1329 20% opt open-7sec(8sec) 25% opt short-9sec(6sec) 30% opt short-10sec(5sec) c(d):...
  • Page 39 9-2 Description of Operating Sequence (continued) Initial operating status of Power Relay when the START button is pressed. Relays are designed to work as shown in the figure below. When the oven is set to DEFROST power position, Inrush Relay1 and Power Relay1 are programmed to work with Inrush Relay2 and Power Relay2 not simultaneously but alternately.
  • Page 40 9-2 Description of Operating Sequence (continued) High Voltage Transformer input power sensing circuitry Refers to the circuitry that detects and check if the input power is correctly supplied to the primary terminal of High Voltage Transformer when the microwave oven is operating. If any abnormal condition(eg.
  • Page 41 © Samsung Electronics Co., Ltd. May 2002 Printed in Korea Code No. : DE68-02679aA...

This manual is also suitable for:

Cm1329Cm1619Cm1919Cm1629Cm1929

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