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SERVICE
MICROWAVE OVEN
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MICROWAVE OVEN
CM1219 / CM1229
Manual
8. PCB Circuit Diagrams and Parts List
CONTENTS
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Table of Contents
Related Manuals for Samsung CM1219
Summary of Contents for Samsung CM1219
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Page 1: Table Of Contents
MICROWAVE OVEN CM1219 / CM1229 SERVICE Manual CONTENTS MICROWAVE OVEN 1. Precaution 2. Specifications 3. Operating Instructions 4. Disassembly and Reassembly 5. Alignment and Adjustments 6. Troubleshooting + 20sec + 20sec + 20sec + 20sec + 20sec + 20sec + 20sec + 20sec 7. - Page 2 (4) damage to or loosening of hinges before the oven is released to the and latches, owner. (e) A microwave leakage check should be (5) evidence of dropping or abuse. performed on each oven prior to release to the owner. Samsung Electronics...
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Page 3: Precaution
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. Samsung Electronics... -
Page 4: Special High Voltage Precautions
DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron. PRECAUTION Never touch any circuit wiring with your hand nor with an insulated tool during operation. PRECAUTION Servicemen should remove their watches whenever working close to or replacing the magnetron. Samsung Electronics... -
Page 5: Specifications
2. Specifications 2-1 Table of Specifications (CM1219 / CM1229) MODEL CM1219 CM1229 ITEM TIMER Max. 25 min Max. 25 min POWER SOURCE 230V/50HZ, AC 230V/50HZ, AC POWER CONSUMPTION MICROWAVE : 2,200W MICROWAVE : 2,200W OUTPUT POWER 230V: 1,200W (IEC-705) 230V: 1,200W (IEC-705) -
Page 6: Operating Instructions
3. Operating Instructions 3-1 Features (CM1219) VARIABLE COOKING POWER CONTROL DIAL TIMER DIAL OVEN LAMP (230V 25W) +20sec PAD DISPLAY STOP/CANCEL PAD OVEN LAMP COVER START BUTTON DOOR HANDLE CEILING COVER SAFETY INTERLOCK HOLES DOOR DOOR LATCHES PLATE TRAY AIR FILTER... - Page 7 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 3-4 External Views (CM1219 / CM1229) 3-4-1 External Views (CM1219) 1000 3-4-2 External Views (CM1229) 1000 Samsung Electronics...
- Page 8 Operating Instructions 3-5 Operation Guide (CM1219) 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 Operating Instructions 3-5 Operation Guide (CM1219 continued) To stop 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 * Temporarily ; Open the door or press button once.
- Page 10 ‘ON’ appears again. Food may be removed from oven whilst the fan is still running. 8. Open the door and take the food out. 9. Close the door. The oven lamp will go off. Samsung Electronics...
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Page 11: Repeat Feature
Like traditional cooking, you may find that, depending on the food’s characteristics or your tastes, you have to adjust the cooking times slightly. Before operating the oven, times can be increased/decreased using either the time pads or +20sec button. During the operating, time may only be added by using the +20sec button. Samsung Electronics... -
Page 12: Memory Pads Programming
Memory programs are available up to 30 items. Make sure the unit is properly programmed. After programming is finished, all you have to do for memory cooking is to press the NUMBER pad. Then the selected memory program automatically starts cooking. Samsung Electronics... -
Page 13: How To Operate Memory Cooking
Result: Cooking stops. To resume cooking, close the door and press again. * Completely: Press the pad twice. Result: The cooking settings are cancelled. If you want to cancel any cooking settings before starting cooking, simply press CANCEL pad once. Samsung Electronics... - Page 14 Operating Instructions 3-5 Operation Guide (CM1219 / CM1229) Power Levels and Time Variations 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. You can choose between the power levels below.
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Page 15: Disassembly And Reassembly
4-2 Replacement of High Voltage Transformer 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. H. V. Trans 4 Mounting Bolts Samsung Electronics... -
Page 16: Replacement Of Door Assembly
2. Adjust so that the door has no play between the inner door surface and oven front surface. If the door assembly is not mounted properly, microwave energy may leak from the space between the door and oven. 3. Do the microwave leakage test. Samsung Electronics... - Page 17 If any of them are deformed, abnormal symptom can happen such as arcing or sparks during operation. Ass’y Stirrer Ass’y Stirrer Cover Plastic Clips Samsung Electronics...
- Page 18 Wire Harness-B Main P.C.Board (PCB1) Wire Harness-C Digitron(PCB4) Panel-Base Wire Harness-D PCB2 Button-Select Button-Start Main P.C.Board (PCB1) Control Box Ass’y (CM1219) Wire Harness-C Digitron(PCB4) Wire Harness-B Panel Base Wire Harness-F Window-Display Cover Panel PCB3 Cover-Panel/L Switch-Membrane Control Box Ass’y Cover-Panel/R...
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Page 19: Replacement Of Lamp
3. Replace with a new lamp by rotating it counter- clockwise. Lamp Holder Lamp Cover 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. Outer Panel Samsung Electronics... - Page 20 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. H.V.Capacitor Samsung Electronics...
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Page 21: Alignment And Adjustments
2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MΩ. 3. A shorted capacitor will show continuous continuity. 4. An open capacitor will show constant 9MΩ. 5. Resistance between each terminal and chassis should read infinite. Samsung Electronics... -
Page 22: High Voltage Diode
Door Open Door Closed procedures. ∞ Primary S/W ∞ 4. Confirm that the gap between the switch housing Monitor S/W(COM-NC) ∞ Monitor S/W(COM-NO) and the switch actuator is no more than 0.5mm ∞ Door Sensing S/W when door is closed. Samsung Electronics... -
Page 23: Output Power Of Magnetron
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 CM1219/1229 exactly. (3 secondsincluded as a holding time of magnetron oscillation) 4. -
Page 24: Check For Microwave Leakage
; CENTRAL SERVICE CENTER 3) At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer. Thermistor Sensor Temperature Samsung Electronics... -
Page 25: Troubleshooting
2. Defective high voltage components Check high voltage component (No heat while oven lamp H.V.Transformer according to component test procedure and fan motor turn on.) H.V.Capacitor and replace if defective. H.V.Diode, H.V.Fuse Magnetron Samsung Electronics... - Page 26 Oven can program but Defective circuitry of Start function Check circuitry of Start function timer does not start. of Main PCB Ass’y. of Main PCB Ass’y and replace if defective. Loose lead wires Adjust or repair loose wires. Samsung Electronics...
- Page 27 Check the circuitry. (Refer to Operating Sequence circuit failure as shown in page 42.) 1. Memory IC (EEPROM IC) failure Check Memory IC (IC3) and replace if defective. CM1229 2. MICOM failure Replace Assy Main PCB or MICOM. Samsung Electronics...
- Page 28 MM06 MM10 MM85 MM44 MM171 MM43 (CM1229) MM38 MM41 MM72 MM17 MM40 MM07 MM88(1229) MM22 MM30 MM35 MM05 MM29 MM31 (CM1219) MM14 MM55 MM551 MM48 MM39 MM87 MB05 MM32 MM28 MB03 MB01 MB041 MB02 MM33 MM37 MM46 MB03 MB042 MB07...
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Page 29: Exploded Views And Parts List
Exploded Views and Parts List 7-2 Main Parts List(CM1219) Part Code Description Specification Q'ty Remark MB01 DE93-20097C ASSY BODY LATCH CM1819/1829,EUROPE,-,-,-,- MB02 3405-000175 SWITCH-MICRO 250V,15A,200gf,SPST-NO MB03 3405-000178 SWITCH-MICRO 250V,15A,200gf,SPST-NO MB041 DE66-90107A LEVER-SWITCH/U PBT,CM-1819,-,-,-,-,- MB042 DE66-90108A LEVER-SWITCH/L PBT,CM-1819,-,-,-,-,- MB05 DE66-40062A LATCH-BODY... - Page 30 MSWR,PI0.8,-,-,-,-,CM1819/1829,- 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 DE91-50093G ASSY MOTOR-FAN -,240V,2250RPM,CM1219/1229,-,-,-,-,- MM07 DE39-20143B ASSY POWER CORD U13A1,-,250V,13A,L2200,BLK,-,- MM08 OM75P(20)ESS ASSY-MAGNETRON OM75P(20)ESS MM10 4713-000168 LAMP-INCANDESCENT 230V,-,25W,ORG,-,-,- MM11 DE47-40029A SOCKET-LAMP 250V2A,22.23,E14,BJB,-,-,- MM14 DE26-10150A TRANS-H.V...
- Page 31 Exploded Views and Parts List Exploded Views and Parts List Exploded Views and Parts List Exploded Views and Parts List 7-3 Exploded View & Parts List - Control & Door(CM1219) MD06 MD08 MD04 MC22 MC20 MD15 MD01 MD17 MC21 MD10...
- Page 32 PP,CM-1819,-,-,-,-,- MD07 DE61-70144A SPRING-KEY PI6.5,D0.8,-,-,-,CM-1819,- MD08 DE61-80138A HINGE SCP1,T3.0,W24.5,L29.5,-,-,-,-, MD10 DE64-40296A DOOR-KEY CR3C,-,-,-,-,-,- MD13 DE60-60080A PIN-KEY A,M3.95,L21,STS304,-,CM-1819,- DOOR-E MD14 DE64-20123A HANDLE ZN-DICASTING,500G,CM-1819,-,CM MD15 DE64-90145A DECORATION-DOOR ABS,CM-1819,-,-,-,-,-,-,- MD16 DE64-90146A DECORATION-COV/DOOR STS,CM-1819,-,-,-,-,-,-,- MD17 DE67-20174A SCREEN-DOOR(B) TEMP-GLASS,T3.2,-,-,-,-,-,-,- MD18 DE71-60433A COVER-HANDLE STS430,T0.5,CM-1819,-,-,-,-,-, Samsung Electronics...
- Page 33 Exploded Views and Parts List 7-6 Parts List - Standard Parts(CM1219) Part Code Description Specification Remark 6011-001140 BOLT-STUD M4,L8,Ni PLT,BSW DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH BACK-COVER DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH BKT-LAMP DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH P/CORD EARTH...
- Page 34 SCREW- TAP TH 2- 4X8,FE,FZY,(77128- 540- 081,SA DECORATION DE60- 10022A SCREW- PH PH,+,M3,L8,MSWR10,FEFZY,- ,- ,- , TCO- DUCT DE60- 10088A SCREW- TAP PH PH,M3,L8,FEFZY,PLAIN,- ,- ,- ,- ,- DE60- 10088A SCREW- TAP PH PH,M3,L8,FEFZY,PLAIN,- ,- ,- ,- ,- Samsung Electronics...
- Page 35 8. P.C.B Circuit Diagrams and Parts List 8-1 P.C.B Circuit Diagram (CM1219) Samsung Electronics...
- Page 36 P.C.B Circuit Diagrams and Parts List P.C.B Circuit Diagrams and Parts List 8-2 P.C.B Circuit Diagram (CM1229) 8-2 P.C.B Circuit Diagram (CM1229) 8-2 P.C.B Circuit Diagram (CM1229) 8-2 P.C.B Circuit Diagram (CM1229) Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics...
- Page 37 P.C.B Diagrams and Parts List P.C.B Diagrams and Parts List P.C.B Diagrams and Parts List P.C.B Diagrams and Parts List 8-3 P.C.B Parts List (CM1219) Part Code Description Specification Q'ty Remark 0604-000237 PHOTO-COUPLER TR,50-600%,200mW,DIP-4,ST IC4,IC5 3002-000198 BUZZER-PIEZO 80dB,-,-,4KHz,ST BUZ1 3406-001031 SWITCH-ROTARY 10V,1mA,DP24T,18.3mm...
- Page 38 470uF,20%,35V,GP,TP,10x20,5 2401-002075 C-AL 4.7uF,20%,50V,GP,TP,5x11,5 2801-003214 CRYSTAL-UNIT 4.194304MHz,50ppm,28-AAA,12pF, XTL1 3404-001022 SWITCH-TACT 15V,20mA,130 ¡¾40gf,6x6x5mm,SPS 2 SW5,6 3711-000203 CONNECTOR-HEADER 1WALL,3P,1R,3.96MM,STRAIGHT,SN 1 CN14 3711-000881 CONNECTOR-HEADER BOX,3P,1R,2.5mm,STRAIGHT,SN CN13,9 3711-000940 CONNECTOR-HEADER BOX,4P,1R,2.5mm,STRAIGHT,SN 3711-000999 CONNECTOR-HEADER BOX,5P,1R,2.5mm,STRAIGHT,SN DE13-20009A IC KA7533,DIP,-,-,-,-,- DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE,-, 34 J04~06,08~38 Samsung Electronics...
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Page 39: Wiring Diagram & Operating Sequence
9. Wiring Diagram & Operating Sequence 9-1 Wiring Diagram (CM1219/1229) Samsung Electronics... -
Page 40: Description Of Operating Sequence
1 and 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. CM1219 / CM1229 c(d): 30% -> opt short - 9sec(6sec) 15% -> opt short - 5sec(10sec) - Page 41 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 (250V 16A) P2: Power Relay2 (250V 16A) Samsung Electronics...
- Page 42 In case of Power Relay 2 (RY5), check the waveform (C), (D) below. In case of Power Relay 2 (RY5), check the waveform (C), (D) below. In case of Power Relay 2 (RY5), check the waveform (C), (D) below. Samsung Electronics...
- Page 43 ELECTRONICS © Samsung Electronics Co., Ltd. MAY 2000 Printed in Korea Code No : DE68-01157A...