Daewoo KOC-1B0K5S Service Manual Download Page 29 | Manualshive

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10. WIRING DIAGRAM

- KOC-1B0K5S/1B2K5S

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Summary of Contents for KOC-1B0K5S

Page 1: ...K5S S M No OC1B0K5001 Nov 2005 Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you need the latest parts information please refer to PPL Parts Price List in Service Information Center ...

Page 2: ...djusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner A microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner TABLE OF CONTENTS 1 SAFETY AN...

Page 3: ...ny certified oven unit is found to servicing a microwave emission check should be performed prior to servicing the oven a inform the manufacturer importer or assembler b repair the unit at no cost to the owner c attempt to ascertain the cause of the excessive leakage d tell the owner of the unit not to use the unit until the oven has been brought into compliance 3 If the oven operates with the doo...

Page 4: ... IEC705 MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 560X344X542mm 22 0X13 5X21 3 in CAVITY DIMENSIONS W X H X D 368 5X246X376 5mm 14 5X9 7X14 8 in NET WEIGHT APPROX 21 5kg 47 6 lbs TIMER 60 minutes FUNCTION SELECTIONS MICROWAVE GRILL CONVECTION COMBINATION POWER SELECTIONS 10 LEVELS CAVITY VOLUME 1 2 Cu Ft Specifications are subject to change without notice 3 1 OUTER DIMENSION Fig 1 F...

Page 5: ...MP Automatically turns on during oven operating 16 SAFETY INTERLOCK SYSTEM 17 CONTROL PANEL 18 TURNTABLE TRAY Rotates during cooking and ensure even distribution of Microwaves It can also be used as a cooking utensil 19 ROLLER GUIDE This must always be used for cooking together with the turntable tray 10 COUPLER This fits over the shaft in the center of the ovens cavity floor This is to remain in ...

Page 6: ... damaged must be repaired with cable of same type Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person 6 Examine the oven after unpacking for any damage such as A misaligned door broken door or a dent in cavity If any of the above are visible DO NOT INSTALL and notify dealer immediately 7 Do not operate the oven if it is colder than room temperature This may occur ...

Page 7: ...he language 9 9 Clock Use to set clock 0 0 Less Use to remove time from cooking q q More Use to add time to cooking w w M W Press to select microwave power level e e Combi Press to select combi cooking mode r r Auto Defrost Press to select defrost menu t t Convection Press to select convection temperature y y Grill Press to select grill u u Cake Press to select cake menu i i Crusty Press to select...

Page 8: ...g repair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation stopped and electric charge remains in the high voltage capacitor When replacing or checking parts short between oven chassis and the negative high terminal of the high voltage capacitor by using a properly insulated screwdriver to discharge 4 When the 15A fuse is blown out due ...

Page 9: ... door assembly from top plate of cavity 3 Reverse the above for assembly 3 To remove door parts REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3512204700 FRAME DOOR PC 1 A02 3517006900 BARRIER SCREEN O TEMP GLASS T3 2 1 A03 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 A04 3515204900 STOPPER HINGE T AS KOC 1B0K0S 1 A05 3512302300 GASKET DOOR PBT 1 A06 7122401211 SCREW TAPPING T2S TRS 4X12 MF...

Page 10: ...r 9 Reverse the above steps for reassembly 4 Method to reduce the gap between the door seal and the oven front surface 1 To reduce gap located on part A Loosen two screws on stopper hinge top and then push the door to contact the door seal to oven front surface Tighten two screws 2 To reduce gap located on part B Loosen two screws on stopper hinge under and then push the door to contact the door s...

Page 11: ... KOC 1B0K0S 1 B12 3516908600 BUTTON FUNCTION D ABS SG 175 SG 0760D 1 B13 3516908700 BUTTON FUNCTION E ABS SG 175 SG 0760D 1 B14 3516908200 BUTTON START ABS SG 175 SG 0760D 1 B15 3513406000 KNOB VOLUME ABS SG 175 SG 0760D 1 1 Remove the screw which secure the control panel push up two snap fits and draw forward the control panel assembly 2 Remove three screws B08 which secure the control panel 3 Pu...

Page 12: ...h door normally closed Magnetron antenna Metallic gasket plate Cooling fin Filament terminal 6 To remove high voltage capacitor 1 Remove a screw which secure the grounding ring terminal of the H V diode and the capacitor holder 2 Remove the H V diode from the capacitor holder 3 Reverse the above steps for reassembly High voltage circuit wiring 7 To remove magnetron 1 Remove a screw which secure th...

Page 13: ...assembly 4 Draw forward the wind guide assembly 5 Pull the fan from the motor shaft 6 Remove two screws which secure the motor shaded pole 7 Remove the motor shaded pole 8 Reverse the above steps for reassembly 9 To remove H V transformer 1 Remove four screws holding the H V transformer 2 Remove the H V transformer 3 Reverse the above steps for reassembly ...

Page 14: ...the Holder lamp assembly7 7 Reverse the above steps for reassembly 1 2 3 4 6 7 8 5 9 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3512520500 GUIDE AIR OUTLET SA1D T0 5 1 3 3513302800 INSULATOR HEATER T SBHG T0 6 1 4 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 5 3511407800 COVER LAMP STS430 T0 5 1 6 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 7 ...

Page 15: ... miraclon7 from the Cover heater t8 7 Reverse the above steps for reassembly 1 2 3 4 6 7 8 5 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3512520500 GUIDE AIR OUTLET SA1D T0 5 1 3 3513302800 INSULATOR HEATER T SBHG T0 6 1 4 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 5 3512767000 HARNESS HEATER KOC 1B0K0S 1 6 3510607700 BRACKET HEATER T SA1D T0...

Page 16: ... 98 7 6 5 4 3 1 2 i u y t r e REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3511407300 COVER MOTOR B SBHG T0 6 1 3 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 4 3511407400 COVER B SBHG T0 6 1 5 3512766900 HARNESS CONVECTION B KOC 1B0K0S 1 6 3512803800 HEATER MIRACLON 115V 550W 270MM 2 7 3511407700 COVER HEATER B SA1D T0 5 1 8 7113400814 SCREW TA...

Page 17: ...r U assembly 4 Remove a screw5 5 Pull out the Heater U4 from the Cover heater U2 6 Reverse the above steps for reassembly 5 4 3 2 1 CUTTING 6EA REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3511407500 COVER HEATER U STS430 T0 5 1 3 3515304000 SUPPORTER HEATER U STS430 T0 5 1 4 3512802000 HEATER U 230V 400W R18374001 1 5 7113400814 SCREW TAPPING ...

Page 18: ... switch When the door is closed the hook pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under OFF condition and presses the button of the secondary interlock switch to bring it under ON condition 3 Adjustment steps a Loosen the one mounting screw b Adjust interlock switch assembly position c Make sure that lock lever moves smoothly afte...

Page 19: ... of the terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed COM NC Check continuity of both primary and secondary interlock switch with door closed Malfunction of Interlock monitor switch Malfunction of interlock switch RESULT Continuity No continuity CAUSE REMEDY Replace COM NC Fuse blows Replace Shorted contac...

Page 20: ...djust for adjustment instructions TROUBLE 2 Display shows all figures selected but oven does not start cooking even though desired program and time are set and start button is tapped CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary interlock switch RESULT No continuity CAUSE REMEDY Adjust or replace Turn table motor and oven lamp do not turn on Check D C voltage ...

Page 21: ...ctive magnetron Replace Check resistance of primary and secondary coil of high voltage transformer 0 Ω or Defective high voltage transformer Replace Check continuity of high voltage fuse No continuity Replace high voltage fuse Check continuity of filament terminal of high voltage transformer No continuity Defective high voltage transformer Replace Check D C voltage being supplied to RELAY RY1 coil...

Page 22: ... Check continuity of heater Defective heater No continuity Replace TROUBLE 5 1 Convection heater is not heated food will not become hot 2 Convection fan motor does no rotate CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary Interlock switch RESULT No continuity Adjust or replace 1 Convection heater is not heated 2 Convection fan and motor does not rotate Check D C...

Page 23: ...sub assembly Display does not show programming at all even if keyboard is touched TROUBLE 7 The following visual conditions inditions indicate a probable defective touch control Circuit or button P C B assembly 1 Incomplete segments 1 segment missing 2 partial segments missing 3 digit flickering other than normal fluorescent slight flickering 2 A distinct change in the brightness of one or more nu...

Page 24: ...tinuity of thermistor resistance of thermistor Replace RESULT 0Ω or infinite Replace ERROR 2 ERROR 3 come on display Check continuity of heater convection upper lower Defective touch control circuit Replace Approx 200k 300kΩ room temperature Defective heater No continuty continuity Replace ...

Page 25: ...essel the load is immediately placed on the center of the shelf which is in the lowest normal position 4 Microwave power is switched on 5 Heating time should be exactly A seconds Refer to table as following Heating time is measured while the microwave generator is operating at full power The filament heat up time for magnetron is not included 6 The initial and final temperature of water is selecte...

Page 26: ...cabinet door seem door viewing screen the exhaust air vents and the suction air vents 3 Measuring should be in a counter clockwise direction at a rate of 1 in sec If the leakage of the cabinet door seem is unknown move the probe more slowly 4 When measuring near a corner of the door keep the probe perpendicular to the areas making sure the probe end at the base of the cone does not get closer than...

Page 27: ...mmeter set on the highest resistance scale measure the resistance across the diode terminals Reverse the meter leads and again observe the resistance reading Meter with 500V dc or higher voltage batteries should be used to check the front back resistance of the diode otherwise an infinite resistance may be read in both directions A normal diode s resistance will be infinite in one direction and se...

Page 28: ...MODE COMBI 4 COMBI 5 CONVECTION100 130 CONVECTION140 150 CONVECTION160 250 ONE CAKE BREAD TOUCH CRUSTY ROAST BEEF ROAST CHICKEN ROAST PORK BAKED FISH AUTO BAKED POTATO MODE ROAST POTATO FRESH VEGETABLES FROZEN VEGETABLES CASSEROLE MAGNE TRON UPPER ELEMENT LOWER ELEMENT REAR ELEMENT CONVEC TION FAN ...

Page 29: ...28 10 WIRING DIAGRAM KOC 1B0K5S 1B2K5S ...

Page 30: ...29 11 EXPLODED VIEW AND PARTS LIST 11 1 DOOR ASSEMBLY Refer to 6 Disassembly and assembly 11 2 CONTROL PANEL ASSEMBLY Refer to 6 Disassembly and assembly 11 3 TOTAL ASSEMBLY ...

Page 31: ...272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 1 F13 3511407500 COVER HEATER U STS430 T0 5 1 F14 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 F15 3515304000 SUPPORTER HEATER U STS 430 T0 5 1 F16 3512802000 HEATER U 230V 400W R18374001 1 F17 7113400814 SCREW TAPPING T1 BIN 4X8 MFZN 1 F18 3966510200 MOTOR SYNCRO 230V 25W GM 16 24FD24 1 F19 7112401011 SCREW TAPPING T1 TRS 4X10MFZN 1 F20 3517401900 COUPLER P...

Page 32: ...4X10MFZN 2 F48 3511407300 COVER MOTOR B SBHG 1 T0 6 1 F49 3511800100 FAN PP GF20 1 F50 3963513010 MOTOR SHADED POLE 230V 25W MW15CA B01 1 F51 3512515300 GUIDE WIND PP GF20 1 F52 3518605500 NOISE FILTER DWLF M07 1 F53 3513003900 H OLDER LAMP AS KOC 1B0K0S 1 F54 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 F55 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1 F56 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN...

Page 33: ...72 3510607700 BRACKET HEATER T SA1D T0 5 1 F73 3514801400 SENSOR TEMPERATURE PTM K312 D7 1 F74 3512767000 HARNESS HEATER KOC 1B0K0S 1 F75 3517207300 TRAY RACK AS KOC 1B0KOS 120MM 1 F76 3517207310 TRAY RACK AS KOC 1B0KOS 30MM 1 F77 3517207200 TRAY METAL SPP T0 6 1 F78 3512521000 GUIDE ROLLER AS KOC 1B0K0S 1 F79 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 2 F80 3511407810 COVER LAMP T GLASS T2 0 1...

Page 34: ... to fluctuation of power source voltage 2 The allowable tolerance of the secondary voltage is within 5 of nominal voltage NOTE Each measure point must be measured with GND points Terminal 6 7 8 9 9 10 Voltage load AC 17 0 V AC 1 3 V AC 1 3 V Voltage no load AC 19 9 V AC 1 6 V AC 1 6 V NO CHECK POINT REMARK 1 IC1 PIN 63 64 5VDC 5 2 IC1 PIN 38 3 IC1 PIN 33 OR 34 T 20 ms 50Hz 5V 0V T T 250 ns 4MHz 5V...

Page 35: ...able motor does not rotate but cook indicator in display comes on Cause RELAY 4 does not operate Check method 3 When touching M W button oven lamp turns on and fan motor does not rotate but cook indicator in display comes on Cause RELAY 5 does not operate Check method STATE RELAY 1 ON RELAY 1 OFF POINT A 5V DC GND POINT B GND 24V DC STATE RELAY 4 ON RELAY 4 OFF POINT A 5V DC GND POINT B GND 24V DC...

Page 36: ...otor and turntable motor rotate and cook indicator in display comes on Cause RELAY 7 does not operate 6 Case of no heating of convection grill When touching CONVECTION button oven lamp turns on and Fan motor and turntable motor rotate and cook indicator in the display comes on Cause RELAY 3 does not operate STATE RELAY 2 ON RELAY 2 OFF POINT A 5V DC GND POINT B GND 24V DC STATE RELAY 7 ON RELAY 7 ...

Page 37: ...ened during operation the count down timer does not stop Check method POINT STATE DOOR OPEN DOOR CLOSED A OPEN CLOSE B 5V DC GND B A CHECK NO METHOD REMEDY 1 Check the stage ON OFF of the door open Replace door open monitor swith monitor switch by resistance measurement ...

Page 38: ...37 13 P C B CIRCUIT DIAGRAM A B ...

Page 39: ...6 RESISTOR R2 R5 R13 R20 1 6W 1K Ohm 5 RD AZ102J 4 27 RESISTOR R6 1 6W 200 Ohm 5 RD AZ201J 1 28 RESISTOR R3 1 6W 1M Ohm 5 RD AZ105J 1 29 RESISTOR R16 1 6W 4 7K Ohm 5 RD AZ472J 1 30 RESISTOR R22 1 6W 47K Ohm 5 RD AZ473J 1 31 RESISTOR R15 1 4W 1K Ohm 5 RD 4Z102J 1 32 RESISTOR R19 1 2W 270 Ohm 5 RD 2Z271JS 1 33 RESISTOR R21 1 2W 27 Ohm 5 RD 2Z270JS 1 34 RESISTOR R17 1 2W 200 Ohm 5 RD 2Z201JS 1 35 RES...

Page 40: ...S M NO OC1B0K5001 DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Nov 2005 ...

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