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Service Manual

Microwave Oven

Model: KOC-984T

DAEWOO ELECTRONICS CO., LTD.

S/M No. : C972T0S002

Содержание KOC-984T

Страница 1: ...Service Manual Microwave Oven Model KOC 984T DAEWOO ELECTRONICS CO LTD S M No C972T0S002...

Страница 2: ...ertified 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...

Страница 3: ...ROX 21 Kg 46 3 lbs TIMER 60 minutes FUNCTION SELECTIONS MICROWAVE GRILL CONVECTION COMBI POW ER SELECTIONS 10 LEVELS CAVITY VOLUME 1 0 Cu Ft MODEL KOC 982T 983T 984T 985T1S KOC 982T 983T 984T 985T2S P...

Страница 4: ...1 OUTER DIMENSION KOC 972T EXTERNAL VIEW KOC 984T...

Страница 5: ...n pass through but not the microwave 4 Top heater Turns on when convection grill and combi cooking is selected 5 Oven lamp Automatically turns on during oven operating 6 Safety interlock system 7 Cont...

Страница 6: ...ype 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 su...

Страница 7: ...o select the variable Microwave Power Level microwave power level If cooking mode cooking mode cooking mode operating in COMBI When blinking the oven is When blinking the oven is operating in GRILL Wh...

Страница 8: ...ng 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 replaci...

Страница 9: ...ward 2 To remove guide wind assembly 1 Remove two screws for earthing and for fixing to rear plate 2 Remove the noise filter from the guide wind 3 Pull the fan from the motor shaft 4 Remove two screws...

Страница 10: ...te 2 Remove the H V transformer 3 Reverse the above steps for reassembly 4 To remove high voltage capacitor 1 Remove a screw which secure the grounding ring terminal of the H V diode and the capacitor...

Страница 11: ...rse the above steps for reassembly Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent microwave leakage Whenever repair work is carried out on...

Страница 12: ...PANEL ABS XR 401 1 B02 3511602900 DECORATOR C P T STS304 T0 6 H L 1 B03 3511603000 DECORATOR C P U STS304 T0 6 H L 1 B04 3511603110 DECORATOR C PANEL PMMA IF 850 1 SMOG B05 3511602800 DECORATOR RING...

Страница 13: ...ng 6 Remove the handle from the frame door REF NO PART CODE PART NAME DESCRIPTION QTY REMARK A01 3511708400 DOOR SEAL AS KOC 971C0S 1 A02 3513101100 HOOK POM 1 A03 3515101300 SPRING HOOK PW 1 1 A04 35...

Страница 14: ...OOK POM 1 A03 3515101300 SPRING HOOK PW1 1 A04 3517004080 BARRIER SCREEN O TEMPERED GLASS T3 2 1 MIRROR A05 3512204000 FRAME DOOR ABS XR 401 1 A06 3511603200 DECORATOR DOOR T STS304 T0 6 H L 1 A07 351...

Страница 15: ...To reduce gap located on part D Loosen a screw on interlock switch assembly located top of oven body Following steps are same as step 3 Small gap may be acceptable if the microwave leakage does not ex...

Страница 16: ...r 3 Remove two screws and under heater assembly in cavity 11 To remove grill heater assembly KOC 972T 1 Remove a nut which secure the heater holder inserting the wire of grill heater to side plate 2 R...

Страница 17: ...bly 1 Remove cover b and cover insulator b protecting convection part assembly release two lances of cover insulator b 2 Remove four screws which secure the convection part assembly to the cavity rear...

Страница 18: ...sed the hook pushes the latch lever downward The latch lever presses the button of the interlock monitor switch to bring it under OFF condition and presses the button of the secondary interlock switch...

Страница 19: ...ater to the vessel 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 Heating...

Страница 20: ...s opened and when the door is closed 3 Monitor interlock switch 1 Disconnect the lead wire connecting the primary interlock switch and interlock monitor switch from primary interlock switch terminal 2...

Страница 21: ...on the door cabinet door seem door viewing screen the exhaust air vents and the suction air vents Measuring should be in a counter clockwise direction at a rate of 1 in sec If the leakage of the cabi...

Страница 22: ...h the ohmmeter 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...

Страница 23: ...23 WIRING DIAGRAM...

Страница 24: ...24 SCHEMATIC DIAGRAM...

Страница 25: ...25 SCHEMATIC DIAGRAM...

Страница 26: ...26 SCHEMATIC DIAGRAM...

Страница 27: ...27 EXPLODED VIEWS AND PARTS LIST EXPLODED VIEW...

Страница 28: ...C 971COS 1 F14 7113400814 SCREW TAPPING T1 BIN 4 8 MFNI 2 F15 3510310400 BASE SBHG TO 8 1 F16 3515202800 STOPPER HINGE U AS KOR 121MOA 1 F17 7S422X4081 SCREW SPECIAL TT2 TRS 4 8 SE MFZN 2 F18 35121014...

Страница 29: ...27W40A1 SCREW SPECIAL TT2 HEX FG 4 10 SE MFZN 2 F53 3512505500 GUIDE AIR OUTLET SA1D 80 TO 5 1 F54 7112401011 SCREW TAPPING T1 TRS 4 10 MFZN 1 F55 3511404800 COVER INSULATOR T SECC TO 5 1 F56 71124010...

Страница 30: ...ltage check Key check point 1 5 Micom Pin 6 Display Pin Check method KOC 984T L V T DMR 984FS Terminal Voltage 1 3 230VAC 50Hz 6 7 10 5 VAC 7 8 10 5 VAC 9 10 2 6 VAC NO CHECK POINT REMARK 1 PIN 63 64...

Страница 31: ...t come on Grid 1 G1 4 7 13 Grid 2 doesn t come on Grid 2 G2 10 16 Grid 3 doesn t come on Grid 3 G3 14 18 Grid 4 doesn t come on Grid 4 G4 17 17 Grid 5 doesn t come on Grid 5 G5 21 24 Segment a doesn t...

Страница 32: ...utton oven lamp does not turn on and turntable motor does not rotate but cook indicator in the display comes on CAUSE Relay 3 RY3 does not operate Check method 3 Situation When touching M W button ove...

Страница 33: ...rate Check method 6 Case of no heating of lower heater When touching TEMP COOK PIE button oven lamp turns on fan motor and turntable motor rotate and cook indicator in the display comes on CAUSE Relay...

Страница 34: ...top Check method 8 Case of appearring Err6 on the display Check method KOC 984T STAGE POINT A POINT B Door opened Open 5 VDC Door closed Closed GND KOC 984T POINT WAVEFORM A B C If clock does not keep...

Страница 35: ...35 P C B CIRCUIT DIAGRAM...

Страница 36: ...L C1 C8 C15 H1KF 50V 0 1UF Z CCZF1H104Z 9 C CERA AXIAL C6 C7 H1KF 50V 0 047UF Z CCZF1H473Z 2 C CERA AXIAL C2 C5 H1KF 50V 1000PF K CCZF1H102Z 4 C ARRAY CA1 8P 7 50V 1000 PF CN7XB 102M 1 DIODE SWITCHING...

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