Daewoo KOR-971M0A Service Manual Download Page 57 | Manualshive

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WIRING DIAGRAM

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Summary of Contents for KOR-971M0A

Page 1: ...AEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC FAX 02 590 6291 TEL 02 360 7114 590 6151 5 http www dwe daewoo co kr PRIN...

Page 2: ...Service Manual Microwave Oven Model KOR 971M0A KOR 971Q0A DAEWOO ELECTRONICS CO LTD...

Page 3: ...g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e g g e e...

Page 4: ...n and yellow Earth Blue Neutral Brown Live As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed...

Page 5: ...6 X 382 15 mm inch CAVITY DIMENSIONS W X H X D 335 13 2 X 254 10 X 358 14 1 mm inch NET WEIGHT Approx 18 kg 40 Ibs TIMER 99 min 99 sec SELECT FUNCTION Microwave Auto defrost Auto cook MICROWAVE POWER...

Page 6: ...et from splashes of cooking foods Safety interlock system Prevents the oven from operating while the door is opened Door release button Pushing this button stops oven operation and opens the door Glas...

Page 7: ...the any desired reheat setting Auto defrost Used to defrost foods Power Used to set power level Feeding Bottle Used to sterilize feeding bottles Stop Clear Used to stop the oven operation or to delet...

Page 8: ...d reheat setting Power Used to set power level Feeding Bottle Used to sterilize feeding bottles Stop Clear Used to stop the oven operation or to delete the cooking data Dinner plate Used to reheat din...

Page 9: ...e for damage resulting from use of this oven with a voltage of ampere fuse other than those specified This appliance is supplied with cable of special type which if damaged must be repaired with cable...

Page 10: ...splay will show 0 when the oven is plugged in 6Time clock returns to the present time when the cooking time ends 7When the STOP CLEAR pad is touched during the oven operation the oven stops cooking an...

Page 11: ...e omitted this step e e h h h h h h e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 12: ...K NO CUPS g WEIGHT DEFROSTING begins The defrosting time is automatically determined by the food category and weight entered The g indicator goes off and the WEIGHT DEFROST indicator blinks and the de...

Page 13: ...e The display counts down the time to show you how much defrosting time is left in the TIME DEFROST mode The oven beeps during the defrosting cycle to signal that the food needs to be turned or rearra...

Page 14: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e g...

Page 15: ...ill show what you touched The display will show the numbers you pressed in the order you touched This example shows 4 minutes 20 seconds at power level 8 START 0 2 4 8 POWER 0 3 5 STAGE DEFROST 1 2 WE...

Page 16: ...ill show the numbers you pressed in the order you touched The STAGE 1 indicator lights and P is displayed P HI will appear in the displayed This example shows full power 100 The display will show the...

Page 17: ...TIME AUTO START When you touch START pad the WEIGHT DEFROST STAGE 1 and STAGE 2 indicators come on to confirm the power levels selected The WEIGHT DEFROST indicator starts blinking to show you that t...

Page 18: ...the oven light turns on The AUTO START indicator goes off and the next stage indicator begins to blink When the cooking is completed you will hear 3 beeps The oven turns off and the present time appea...

Page 19: ...o use to sterillize feeding bottles FEEDING BOTTLE DO THIS 1 Touch FEEDING BOTTLE pad THIS HAPPENS When you touch Feeding Bottle pad 2 is displayed After 1 5 seconds the display is changed into cookin...

Page 20: ...one pad To increase quantity touch chosen pad until number in display is same as desired quantity to cook except for MUFFIN DINNER PLATE ONE TOUCH COOKING DO THIS 1 Touch FROZEN PIZZA pad THIS HAPPEN...

Page 21: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 22: ...closing the door and touching START BAKED POTATO 156g 184g 1 NO ea Touch WEIGHT once 2 NO ea Touch WEIGHT twice within 1 5 seconds 3 NO ea Touch WEIGHT three times within 1 5 seocnds FRESH VEGETABLE...

Page 23: ...e omitted this step e e h h h h h h e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 24: ...K NO CUPS g WEIGHT DEFROSTING begins The defrosting time is automatically determined by the food category and weight entered The g indicator goes off and the WEIGHT DEFROST indicator blinks and the de...

Page 25: ...e The display counts down the time to show you how much defrosting time is left in the TIME DEFROST mode The oven beeps during the defrosting cycle to signal that the food needs to be turned or rearra...

Page 26: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e g...

Page 27: ...ill show what you touched The display will show the numbers you pressed in the order you touched This example shows 4 minutes 20 seconds at power level 8 START 0 2 4 8 POWER 0 3 5 STAGE DEFROST 1 2 WE...

Page 28: ...ill show the numbers you pressed in the order you touched The STAGE 1 indicator lights and P is displayed P HI will appear in the displayed This example shows full power 100 The display will show the...

Page 29: ...TIME AUTO START When you touch START pad the WEIGHT DEFROST STAGE 1 and STAGE 2 indicators come on to confirm the power levels selected The WEIGHT DEFROST indicator starts blinking to show you that t...

Page 30: ...the oven light turns on The AUTO START indicator goes off and the next stage indicator begins to blink When the cooking is completed you will hear 3 beeps The oven turns off and the present time appea...

Page 31: ...o use to sterillize feeding bottles FEEDING BOTTLE DO THIS 1 Touch FEEDING BOTTLE pad THIS HAPPENS When you touch Feeding Bottle pad 2 is displayed After 1 5 seconds the display is changed into cookin...

Page 32: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e g g g g g g One touch cook allows you to cook or re...

Page 33: ...e e e e e e e e e e e e e e e e e e g g g g g g NOTE For best results consult the cookbook e e h h h h h h e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 34: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 35: ...oven by touching START pad You must enter in new instructions 2 Open the door You can restart the oven by closing the door and touching START MORE LESS CHILD SAFETY LOCK TO STOP THE OVEN WHILE IT IS...

Page 36: ...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 37: ...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 38: ...screw driver to discharge 4 When the 20 Amp fuse normal blow type is blown out due to the operation of the monitor switch replace primary secondary interlock switch and monitor switch Refer to 34 pag...

Page 39: ...sh the cabinet backward 2 To remove guide wind assembly Refer to Fig 2 1 Remove the screw guide wind 2 Pull the fan to the motor shaft 3 Release two screws which secure the motor shaded pole 4 Reverse...

Page 40: ...transformer Refer to Fig 3 1 Remove four screws which secure the H V Transformer bracket to the base plate 2 Remove the H V Transformer High voltage circuit wiring Fig 3 H V Capacitor Magnetron H V D...

Page 41: ...hall not exceed 4mW cm2 for a fully assembled oven with door normally closed e e h h h h h h e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 42: ...l 3 Disconnect membrane tail from the connector of the PCB main assembly 4 Detach membrane from the control panel REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 3516715100 CONTROL PANEL ABS 1 2...

Page 43: ...arrier screen 2 Remove the Absorber micro 3 Pull the hook 4 Remove the spring 2 1 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK 1 3511708510 DOOR PAINTING AS KOR 973KS 1 2 3517003910 BARRIER SCRE...

Page 44: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 45: ...43 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 which secure the tray motor 1 2 CUTTING 8EA Fig 9...

Page 46: ...1 Incomplete segments A Segments missing B Partical segments missing C Digit flickering other than normal fluorescent slight flickering D 0 does not display when power is on 2 A distinct change in th...

Page 47: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 48: ...pad Between B and F 18 1 pad Between B and G 19 MUFFIN pad Between B and I 10 WEIGHT pad Between B and K 11 7 pad Between C and F 12 2 pad Between C and G 13 BEVERAGE pad Between C and I 14 MORE pad...

Page 49: ...d Between B and I 10 7 pad Between C and F 11 2 pad Between C and G 12 FRESH VEGETABLE pad Between C and H 13 BEVERAGE pad Between C and I 14 MORE pad Between C and J 15 AUTO DEFROST pad Between C and...

Page 50: ...inding of low voltage transformer 0 or infinite Defective low voltage transformer Replace Disconnect one side of the lead wire connected from transformer to the high volt age capacitor and operate the...

Page 51: ...itch No Continuity Malfunction of Primary Interlock Switch Replace Check D C voltage being supplied to RELAY 2 coil 0V Defective P W B ASSY Replace Approx 24VDC Faulty contacts of RELAY 2 or open rela...

Page 52: ...agnetron No Continuity Continuity Defective magnetron Replace Check continuity of filament terminal of high voltage transformer No Continuity Continuity Defective high voltage transformer Replace Chec...

Page 53: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 54: ...lock Switch 1 Disconnect two connector from Primary Interlock Switch 2 Connect the ohm meter leads between the terminals of the primary interlock switch 3 Read the value of resistance between the term...

Page 55: ...to assure safety for operating personnel from microwave energy 3 Slowly approach the unit under test until the radiometer reads and appreciable leakage from the unit under test 4 Care should be taken...

Page 56: ...diode 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...

Page 57: ...55 WIRING DIAGRAM...

Page 58: ...56 EXPLODED VIEWS AND PARTS LIST...

Page 59: ...2 MFZN 7112401211 1 22 LOCK POM 3513807600 1 23 LAMP BL 240V 25W T25 C7A H187 3513601500 1 24 SW MICRO VP 533A 0F APNO 187 200G 4415A17352 2 25 SW MICRO VP 531A 0F DAE SUNG 4415A66910 2 26 LEVER LOCK...

Page 60: ...e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e...

Page 61: ...MICOM OUTPUT PIN NO IN PIN NO STAGE 1 LOCK don t come on GRID 1 G1 21 30 STAGE 2 NO don t come on GRID 1 G2 17 29 WEIGHT DEFROST CUPS doesn t come on GRID 3 G3 9 26 TIME DEFROST OZ don t come on GRID...

Page 62: ...time does not stop CHECK METHOD POINT A STAGE RELAY 2 ON 24VDC RELAY 2 OFF GND POINT A B STAGE RELAY 1 ON 5VDC GND RELAY 1 OFF GND GND POINT A B STAGE 1 DOOR OPENED OPEN 5VDC 2 DOOR CLOSED CLOSE GND...

Page 63: ...61 6 When the digital clock does not operate properly If clock does not keep exact time you must check resistor R11 R17 D11 D12 D14 D13 R17 R11 C4 22 IC1 A POINT WAVEFORM A 0V 14V T 16 67 ms T 16 67ms...

Page 64: ...4V D9 1N4002 D10 1N4002 Q3 A1270Y R13 4 7K Q4 A1270Y R15 1K R18 4 7K Q5 C3198GR V2 D14 D11 R22 R25 ZD2 V2 V1 R24 R23 R19 R14 EC1 2 D13 F2 F1 D12 ZD1 EC4 2 2 F 50V EC3 0 1 F 50V R10 4 7K RY2 G5B 1 24V...

Page 65: ...4V D9 1N4002 D10 1N4002 Q3 A1270Y R13 4 7K Q4 A1270Y R15 1K R18 4 7K Q5 C3198GR V2 D14 D11 R22 R25 ZD2 V2 V1 R24 R23 R19 R14 EC1 2 D13 F2 F1 D12 ZD1 EC4 2 2 F 50V EC3 0 1 F 50V R10 4 7K RY2 G5B 1 24V...

Page 66: ...64 COMPONENT INFORMATION 1 Transistor 2 Diode and Zener Diode Emitter Collector Q 1 3 5 Base DIODE CATHODE K ZENER DIODE CATHODE K ANODE A D1 7 9 14 ANODE A ZD 1 3...

Page 67: ...65 4 PRINTED CIRCUITS BOARD MP 1 MP 2 MP 3...

Page 68: ...4 KTA1270Y TZTA1270Y 4 18 RESISTOR ARRAY RA1 RGLD6X104J RA 87X104J 1 19 CAPACITOR CERAMIC C4 HIKF 50V 0 01 F Z CCXF1H103Z 1 20 CAPACITOR CERAMIC C1 3 HIKF 50V 0 1 F Z CBXF1H104Z 3 21 CAPACITOR ELECTRO...

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