DAEWOO ELECTRONICS KOC-922T9S Service Manual Download Page 12 | Manualshive

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3. To remove door parts.

REF NO.

PART CODE

PART NAME

DESCRIPTION

Q TY

REMARK

A01

3512204830

FRAME DOOR

ABS SR-0320

1

A02

3517007150

BARRIER-SCREEN*0

GLASS T3.2 MIRROR

1

A03

3515304800

SUPPORTER HINGE*T

SCP-1 T2.0

1

A04

3516602200

DOOR PLATE

SBHG-3A T0.7

1

A05

3517007000

BARRIER-SCREEN*I

TEMP GLASS T2.0

1

A06

3512302400

GASKET DOOR

PBT

1

A07

3513101200

HOOK

POM

1

A08

3515101800

SPRING HOOK

PW1

1

11

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Summary of Contents for KOC-922T9S

Page 1: ...CS CORP S M No C922T9S001 http svc dwe co kr Oct 2003 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 http svc dwe co kr ...

Page 2: ... for proper alignment integrity and connections d Any defective or misadjusted 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 TABLE OF CONTENTS 1 SAFETY AND PRECAUTIONS 2 2 SPECIFICATIONS 3 3 EXTERNAL VIEW 4 3 1 OUTER DIMENSION 4 3 ...

Page 3: ...certified oven unit is found to servicing a microwave emission check should be performed prior to servicing the oven 1 inform the manufacturer importer or assembler 2 repair the unit at no cost to the owner 3 attempt to ascertain the cause of the excessive leakage 4 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 door o...

Page 4: ...VE GRILL CONVECTION COMBINATION POWER SELECTIONS 10 LEVELS CAVITY VOLUME 1 0 Cu Ft MODEL KOC 922T9R 923T9R POWER SUPPLY 230V 50HZ SINGLE PHASE WITH EARTHING MICROWAVE 1500W 1150W POWER GRILL CONSUMPTION CONVECTION 1450W COMBINATION 1500W MICROWAVE ENERGY OUTPUT 1000W IEC705 MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 542X329X503mm 21 3X13 0X19 8 in CAVITY DIMENSIONS W X H X D 350X230X...

Page 5: ...3 EXTERNAL VIEW 1 OUTER DIMENSION 542 503 329 4 ...

Page 6: ...s 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 the oven for all cook...

Page 7: ...ified This appliance is supplied with cable of special type which if 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 op...

Page 8: ...n lighting the oven is CHILD LOCK Con vection When blinking the oven is operating in CONVECTION g When blinking the oven is operating in weight input mode 2 Auto cook Used to cook or reheat 3 Clock Used to set clock 4 Time Defrost Used to defrost foods 5 Weight Defrost Used to defrost foods 6 MW Used to set power level of micro wave 7 Convection Used to select convection and selected temp 8 Combi ...

Page 9: ...ion When blinking the oven is operating in CONVECTION g When blinking the oven is operating in weight input mode 2 Auto cook Used to cook or reheat 3 Combi Used to select combi 4 Convection Used to select convection and selected temp 5 MW Used to set power level of micro wave 6 Grill Used to select grill 7 Time Defrost Used to defrost foods 8 Weight Defrost Used to defrost foods 9 Clock Used to se...

Page 10: ...ing repair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation has stopped 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 20A fuse is blown out du...

Page 11: ...rd 2 To remove door assembly 1 Remove two screws which secure the stopper hinge top 2 Remove the door assembly from top plate of cavity 3 Reverse the above for assemby NOTE After replacing the door assembly perform a check of correct alignment with the hinge and cavity front plate 10 ...

Page 12: ...R ABS SR 0320 1 A02 3517007150 BARRIER SCREEN 0 GLASS T3 2 MIRROR 1 A03 3515304800 SUPPORTER HINGE T SCP 1 T2 0 1 A04 3516602200 DOOR PLATE SBHG 3A T0 7 1 A05 3517007000 BARRIER SCREEN I TEMP GLASS T2 0 1 A06 3512302400 GASKET DOOR PBT 1 A07 3513101200 HOOK POM 1 A08 3515101800 SPRING HOOK PW1 1 11 ...

Page 13: ...e 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 seal to oven front surface Tighten two screws NOTE A small ga...

Page 14: ...X12 MFZN 4 B11 3516909980 BUTTON FUNCTION D ABS SG 175 SG 0760D SPRAY 1 1 Remove the screw which secure the control panel push up two snap fits and draw forward the control panel assembly 2 Remove four screws B10 which secure the PCB Main ASS Y 3 Pull out the Main PCB assembly B09 4 Remove seven screws B08 which secure the PCB Sub ASS Y 5 Pull out the Sub PCB assembly B07 6 Pull out the Knob volum...

Page 15: ...push up two snap fits and draw forward the control panel assembly 2 Remove four screws which secure the PCB assembly to control panel 3 Disconnect membrane tail from the connector of the PCB assembly 4 Detach membrane from the control panel 5 Reverse the above steps for reassembly Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So i...

Page 16: ...r normally closed Magnetron antenna MAGNETRON 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 secu...

Page 17: ... 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 reasembly 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 18: ...CRIPTION Q TY REMARK 1 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 2 3512520500 GUIDE AIR OUTLET SA1D T0 5 1 3 3513303000 INSULATOR HEATER T SECC T0 5 1 4 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 5 3512767000 HARNESS HEATER KOC 1B0K0S 1 6 3510607700 BRACKET HEATER T SA1D T0 5 1 7 3512803800 HEATER MIRACLON 115V 550W 270MM 2 8 3511407600 COVER HEATER T STS430 T0 5 1 Caution In this Manual some p...

Page 19: ...T0 5 1 2 7112401011 SCREW TAPPING T1 TRS 4 10 MFZN 1 3 7112401011 SCREW TAPPING T1 TRS 4 10 MFZN 1 4 3511407900 COVER B SA1D 80 T0 5 1 5 3512767600 HARNESS CONVECTION KOC 924T0S 1 6 7113400814 SCREW TAPPING T1 BIN 4 8 MFNI 4 7 3511409800 COVER HEATER B SA1D 80 T0 5 1 8 3513303400 INSULATOR HEATER B SBHG 1 T0 5 1 9 7113400814 SCREW TAPPING T1 BIN 4 8 MFNI 3 10 3511800700 FAN CONVECTION SA1D 80 T0 5...

Page 20: ... 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 after adjustment is complete...

Page 21: ...n 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 conta...

Page 22: ...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 23: ...ads to magnetron terminal and magnetron body Continuity Defective magnetron 2 1 Check resistance of primary and secondary coil of high voltage transformer 0 or Defective high voltage transformer Replace Check continuity of high voltage fuse No microwave oscillation No continuity 2 Check continuity of magnetron heater with wires removed No continuity Defective magnetron Replace 1 Check continuity o...

Page 24: ... 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 25: ...play does not count down or up with time cooking or clock operation 5 Oven is programmable and cooks normally but no display shows 6 Display obviously jumps in time while counting down 7 Display counts down noticeably too fast while cooking 8 Display does not show the time of day when clear button is touched 9 Oven lamp and turn table motor do not stop although cooking is finished Check if the REL...

Page 26: ...for the water temperature to attain 20 C 2 C is measured The oven is then switched off and the final water temperature is measured within 60s NOTE 1 The water stirred is before its temperature is measured NOTE 2 Stirring and measuring devices are to have a low heat capacity 4 The microwave power output is calculated from the formula where P is the microwave power output in watts mW is the mass of ...

Page 27: ...abinet 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 28: ...ter 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 6V 9V 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 several...

Page 29: ...BI 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 BAKED POTATO ROAST POTATO FRESH VEGETABLES FROZEN VEGETABLES CASSEROLE MAGNE TRON UPPER ELEMENT LOWER ELEMENT REAR ELEMENT CONVEC TION FAN ...

Page 30: ...AGNETRON H V DIODE CAPACITOR H V WH SWITCH UPPER OL INTERLOCK SWITCH HIGH VOLTAGE COM NO NC GE BL BR SINGLE PHASE POWER SUPPLY FUSE L N LINE FILTER ASS Y L N BR D O M SWITCH CONTROL P W B ASS Y CUT OUT THERMAL RD RD H V FUSE RD RD RD WH RD BL BK BK BL RD WH ONLY L N WH WH FAN RELAY CONVECTION MOTOR POWER RELAY RELAY HEATER RELAY THERMISTOR L V TRANSFORMER BL CONVECTION HEATER COM NO NC CM RD BK TO...

Page 31: ...30 11 EXPLODED VIEW AND PARTS LIST 1 DOOR ASSEMBLY Refer to 6 Disassembly and assembly 2 CONTROL PANEL ASSEMBLY Refer to 6 Disassembly and assembly 3 TOTAL ASSEMBLY ...

Page 32: ...AT OFF 100 ON 60 V 187 1 F18 7112401011 SCREW TAPPING T1 TRS 4 10 SE MFZN 2 F19 35113A5QJ5 CORD POWER AS 3 1 5 80 80 120 RTML 1 0M 1 KOC 922T9S 923T9S 35113A5QM5 3 1 0 80 80 120 RTML 1 4M KOC 922T9R 923T9R F20 3511800100 FAN PP GF20 1 F21 3963513010 MOTOR SHADED POLE 230V 25W MW15CA B01 1 F22 3512515300 GUIDE WIND PP 1 F23 3518605001 NOISE FILTER DWLF M05 1 KOC 922T9S 923T9S 3518605500 DWLF M07 KO...

Page 33: ...31 OF SZM V16 FA 61 2 F52 7S422X4081 SCREW SPECIAL TT3 TRS 4 8 SE MFZN 1 F53 3513003200 HOLDER HV CAPACITOR SECC T0 6 1 F54 3518400400 DIODE HV HVB 1X 3AB 12KV 187 1 F55 3518302300 CAPACITOR HV 2100VAC 1 1OUE 187 1 F56 3518701400 FUSE HV 5KV 0 7A 1 F57 3518118910 TRANS HV DW N10S0 92T 1 F58 7147401011 SCREW TAPPING T2 FLG HEX 4 10 MFZN 4 F59 3512101400 FOOT DASE 310 4 F60 7112401011 SCREW TAPPING ...

Page 34: ...OARD NOTE 1 Secondary side voltage of the low voltage transformer changes in proportion 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 T 20 ms 50Hz 5V 0V T T 250 ...

Page 35: ...34 MP1 GND MP2 MEASURE POINT OF KOC 922T9S R ...

Page 36: ...35 MP1 GND MP2 MEASURE POINT OF KOC 923T9S R ...

Page 37: ...r does not rotate but cook indicator in display comes on Cause RELAY 5 does not operate STATE RELAY 1 ON RELAY 1 OFF POINT A 5V DC GND POINT B GND 24V DC M W D7 KOC 922T9S R D8 KOC 923T9S R Q4 KOC 922T9S R Q5 KOC 923T9S R B A RY1 16 KOC 922T9S R 30 KOC 923T9S R STATE RELAY 4 ON RELAY 4 OFF POINT A 5V DC GND POINT B GND 24V DC LAMP TRAY B A RY4 D11 KOC 922T9S R D12 KOC 923T9S R Q7 KOC 922T9S R Q9 K...

Page 38: ...mp turns on and Fan motor and turntable rotate and cook indicator in 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 TOP GRILL B A RY2 D8 KOC 922T9S R D9 KOC 923T9S R Q5 KOC 922T9S R Q7 KOC 923T9S R 17 KOC 922T9S R 32 KOC 923T9S R STATE RELAY 3 ON RELAY 3 OFF POINT A 5V DC GND POINT B GND 24V DC CONV GRILL B A RY3 D9 KOC 922T9S R D1...

Page 39: ...does not stop KOC 922T9S R KOC 923T9S R POINT STATE DOOR OPEN DOOR CLOSED A OPEN CLOSE B 5V DC GND CN1 1 2 C5 5V R1 C4 3 R2 A B D O M SW CN1 2 1 D6 5V R3 C1 15 R4 A B D O M SW CHECK NO METHOD REMEDY Check the stage ON OFF of the door open 1 monitor switch by resistance Replace door open monitor swith measurement ...

Page 40: ...39 13 P C B CIRCUIT DIAGRAM KOC 922T9S R ...

Page 41: ...40 KOC 923T9S R ...

Page 42: ... 47K 5 RD AZ473J 1 29 R CARBON FILM R7 12 13 16 17 18 1 6W 100K 5 RD AZ104J 6 30 R CARBON FILM R3 1 6W 1M 5 RD AZ105J 1 31 R CARBON FILM R10 1 4W 10K 1 RN 4Z1002F 1 32 R CARBON FILM R11 1 4W 120K 1 RN 4Z1203F 1 33 RESONATOR CERA CR1 CRT4 00MS 5P4R00MTS 1 34 IC MICOM IC1 HD404318S 147S924T00 1 35 TRANSISTOR Q1 KTA 1266Y TZTA1266Y 1 36 TRANSISTOR Q2 Q4 10 KRC 106M TZRC106M 8 37 TRANSISTOR Q11 KTC 31...

Page 43: ... 25 R CARBON FILM R24 1 4W 6 8 5 RD 4Z689J 1 25 R CARBON FILM R9 1 6W 200 5 RD AZ201J 1 26 R CARBON FILM R4 8 14 16 1 6W 1K 5 RD AZ102J 4 27 R CARBON FILM R3 7 13 1 6W 10K 5 RD AZ103J 3 28 R CARBON FILM R12 1 6W 47K 5 RD AZ473J 1 29 R CARBON FILM R1 2 10 15 1 6W 100K 5 RD AZ104J 4 30 R CARBON FILM R11 1 6W 1M 5 RD AZ105J 1 31 R CARBON FILM R5 1 4W 10K 1 RN 4Z1002F 1 32 R CARBON FILM R6 1 4W 120K 1...

Page 44: ...S M NO C922T9S001 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 Oct 2003 ...

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