Daewoo KOG-875T2S Service Manual Download Page 17 | Manualshive

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10. To remove grill heater assembly. (Refer to Fig. 10)

1) Remove the cabinet.

2) Release two screws

1

, and remove the Top cover

2

.

3) Release a screws

3

, and remove Air Guide outlet

4

.

4) Release grill Heaters Bracket

5

.

5) Release the above steps for reassembly.

Fig. 10

3

4

2

1

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Summary of Contents for KOG-875T2S

Page 1: ...Service Manual Microwave Oven Model KOG 875T2S DAEWOO ELECTRONICS CO LTD S M No G875T2S001 http svc dwe co kr Feb 2002...

Page 2: ...per 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 adj...

Page 3: ...The oven should be placed as far from high temperature source and vapour as possible 3 The power supply cord is about 1 1m 3 2ft long Earthing is required when connecting the power source 4 Maximum po...

Page 4: ...310 X 229 X 320 mm 12 2 X 9 0 X 12 6 in NET WEIGHT 17 6 kg 38 9 Ibs TIMER 60 minutes SELECT FUNCTION Microwave Grill Combination Heating MICROWAVE POWER LEVEL 10 stages Specifications subject to chan...

Page 5: ...oor seal maintains the microwave within the oven cavity and prevents microwave leakage 3 3 Oven cavity 4 4 Spatter shield Protects the microwave outlet from splashes of cooking foods 5 5 Safety interl...

Page 6: ...seconds number is scrolled up automatically DIAL KNOB Used to enter the cooking time and weight input Stop Clear Button Used to pause or clear all information manually put into the oven When blinking...

Page 7: ...rom the leakage of microwave 1 Primary interlock switch When the door is closed the hook locks the oven door If the door is not closed properly the oven will not operate When the door is closed the ho...

Page 8: ...ck switch to bring it under ON condition Adjustment Interlock monitor switch When the door is closed the monitor switch should be opened before other switches close When the door is opened the monitor...

Page 9: ...t is earthed properly before beginning repair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation stops electric charge remains in the high...

Page 10: ...inet backward 2 To remove guide wind assembly Refer to Fig 2 1 Release two screws 2 2 Remove back cover 3 3 Pull the fan 5 to the motor shaft 4 Release two screws 1 which secure the motor shaded pole...

Page 11: ...ormer Refer to Fig 3 1 Remove four screws 1 which secure the H V Transformer bracket to the base plate 2 Remove the H V Transformer 2 High voltage circuit wiring H V Trans H V Copacitor Mognetron H V...

Page 12: ...hout the metallic gasket plate which is packed with each magnetron to prevent microwave leakage Whenever repair work is carried out on magnetron check the microwave leakage It shall not exceed 4mW cm2...

Page 13: ...PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3516716350 CONTROL PANEL ABS XR 401 1 B02 3511602520 DECORATOR C PANEL STS304 T0 6H L 1 B03 3515501310 WINDOW DISPLAY PMMA 1 B04 3513404620 KNOB VOLUME...

Page 14: ...7 A01 A05 A07 A08 A09 A10 A11 A12 A06 A04 A03 A02 Fig 8 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3511604200 DECORATOR DOOR T STS304 T0 6 H L 1 A02 3511604300 DECORATOR DOOR U STS304 T0 6...

Page 15: ...body 3 and 4 are same as step 3 M W PROGRAM KG COOK GRILL COMBI WEIGHT TIME DEFROST M W WEIGHT DEFROST TIME DEFROST GRILL COMBI 1MIN PROGRAMCOOK 1 Roast Beef 2 Roast Port 3 Roast Chicken 4 Fish Fillet...

Page 16: ...15 9 To remove tray motor and under Heater Refer to Fig 9 1 Cut the tray motor cover parts from the base plate Refer to Fig 9 2 Remove two screws 2 which secure the tray motor 1 1 2 CUTTING 8EA Fig 9...

Page 17: ...mbly Refer to Fig 10 1 Remove the cabinet 2 Release two screws 1 and remove the Top cover 2 3 Release a screws 3 and remove Air Guide outlet 4 4 Release grill Heaters Bracket 5 5 Release the above ste...

Page 18: ...rimary interlock switch contact with door partially open until interlock monitor switch contact close COM NC close Replace Note 1 Shorted contacts of primary interlock switch Defective low voltage tra...

Page 19: ...No Continuity Malfunction of Primary Interlock Switch Adjust or replace Check continuity of secondary interlock switch No Continuity Malfunction of secondary interlock switch Replace Check continuity...

Page 20: ...magnetron Connect megger leads to magnetron terminal and magnetron body Continuity Replace Defective high voltage transformer Check resistance of primary and secondary coil of high voltage transforme...

Page 21: ...lace Replace Turn table motor and oven lamp do not turn on Check continuity of primary interlock switch Check continuity of secondary interlock and D O M switch No Continuity 0V Approx 12VDC Check D C...

Page 22: ...clear pad is touched 11 Oven lamp and turntable motor do not stop although cooking is finished Check if the RELAY 4 contacts close if they are close replace touch control circuit M W PROGRAM KG COOK G...

Page 23: ...4 53 52 51 50 R12 100K CN101 HLEM15R 1 TACK SWITCH KPT 1115AMX10 C2 102 2 3 4 5 RA3 RGLD7X104J CA1 B7102M TIME DEFROST SPEEDY COOK GRILL START WEIGHT DEFROST 1min STOP CLEAR M W COMBI PROGRAM COOK 15...

Page 24: ...the following formula T is actual temperature rise t is the heating time The power measured should be 900W 10 2 Electrical Continuity Check of Interlock Switch 2 1 Procedure 1 Primary Interlock Switc...

Page 25: ...he external surface of the oven checks to be made around the whole of the door seal and on each of the main unit surface Measurements should be made with the oven operating at its maximum output and c...

Page 26: ...is located on the base near the transformer A Isolate the diode from the circuit by disconnecting the leads B With the ohmmeter set on the highest resistance scale measure the resistance across the di...

Page 27: ...26 WIRING DIAGRAM...

Page 28: ...27 SCHEMATIC DIAGRAM...

Page 29: ...28...

Page 30: ...29 EXPLODED VIEWS AND PARTS LIST...

Page 31: ...001 NOISE FILTER DWLF M05 1 18 3518700211 FUSE HV 5KV 0 7A 1 19 3511200400 CLAMP WIRE SBHG 1 20 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 1 21 3518112400 TRANS HV JY N90S1 87T 1 22 3516003800 SCREW SP...

Page 32: ...PING T2S TRS 4 10 MFZN 2 45 3518905000 THERMOSTAT OFF 100 ON 90 V 187 1 46 7121300611 SCREW TAPPING T2S PAN 3X6 MFZN 1 47 3510800800 CABINET PCM 0 6T 1 48 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 3 4...

Page 33: ...changes in proportion to fluctuation of power source voltage NOTE 2 The allowable tolerance of the secondary voltage is within 5 of nominal voltage NO CHECK POINT REMARK 1 PIN 63 64 5VDC 5 2 PIN 29 32...

Page 34: ...17 Grid 5 G5 21 Segment a 23 Segment b 22 Segment c 20 Segment d 19 Segment e 18 Segment f 16 Segment g 15 Lower bar h 5 Upper bar i 6 8 9 11 MICOM OUTPUT IN PIN NO 13 16 18 17 24 26 25 23 22 21 20 19...

Page 35: ...t cook indicator in display comes on Cause Relay 3 RY3 dose not operate CHECK METHOD 3 When touching M W button oven lamp turns on Fan motor dose not rotate but cook indicator in display comes on Caus...

Page 36: ...turns on Fan motor and turntable motor rotate and cook indicator in display comes on Cause Relay 2 RY2 dose not operate CHECK METHOD POINT A B STAGE RY2 ON 5VDC GND RY2 OFF GND 12VDC A 39 Q8 KRC106M...

Page 37: ...16 4 7K C Q1 C3198 C5 473 R13 4 7K C5 102 R15 4 7K C1 V1 45 INT1 B A 5V 0V T T 20ms 50Hz 6 When the door is opened during operation the count down timer does not stop CHECK METHOD V1 R25 4 7K R24 100K...

Page 38: ...5 6V 10uF 50V 220uF 50V 1N4004 4 7V 1K 100K 100K 104 104 104 104 4 7K 1K 10K 100K 330 10K 1K 200 3 9V A1270Y 4 0MHz RGLD7X104J RGLD7X104J 100K B7102M 4 7K 4 7K R15 1N4148M 473 473 AVSS INT1 VCC AVR VS...

Page 39: ...TZRC106M 6 20 C CERA AXIAL C1 C8 C15 H1KF 50V 0 1 F Z CCZF1H104Z 9 21 C CERA AXIAL C6 C7 H1KF 50V 0 047 F Z CCZF1H473Z 2 22 C CERA AXIAL C2 C5 H1KF 50V 1000pF K CCZF1H101Z 4 23 C ARRAY CA1 8P 7 50V 1...

Page 40: ...001 DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC FAX 02 360 8184 TEL 02 360 8183 E MAIL G7F00E WEB DWE CO KR PRINTED...

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