Daewoo Electronics KOR-631H0P User's Manual
Contents
1. EXTERNAL VIEW 2 KOR 631H 861H HB BH VV e SZ M W DEF TIMER LOCK g Dish Warmer Pasta 4 DA D Fresh Vegetable Beverage Frozen Vegetable Frozen Pizza Auto Defrost Fish Poultry Meat lt M 10M 1M 10S H Power kinen Defrost Clock C 41 CLEAR EEDY COOK STOP O ci A c nm T 8 9 Time set pad Used to set the cooking time and the present time Display Cooking time power level indicators and present time are displayed One touch Used to cook or reheat specific quantities of food More Used to add time to cooking Less Used to remove time from cooking Auto Defrost Used to defrost foods for weight Power Used to set power level Defrost Used to defrost foods for time Kitchen Timer Used as a minute timer delay cooking hold setting after cooking 10 Clock Used to set clock 11 Stop Clear Used to stop the oven operation or to delete the cooking data 12 Start Speedy cook Used to startthe oven and also used to seta reheat time N c e mi INSTALLATION Steady flat location This microwave oven should be seton a steady flat surface This microwave oven is designed for counter top use only Leave space behind and side All air vents should be kepta clearance If all vents are covered during operation2. N High voltage capacitor 1 Check continuity of capacitor with meter on the highest OHM scale 2 A normal capacitor will show continuity for a short time and then indicate 10M once the capacitor charged 3 A shorted capacitor will show continuous continuity 4 An open capacitor will show constant 10M 9 5 Resistance between each terminal and chassis should be infinite High voltage diode 1 Isolate the diode from the circuit by disconnecting the leads 2 With 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 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 hundred k 2 in the other direction gt Magnetron For complete magnetron diagnosis refer to Measurement ofthe Microwave Power Output Continuity checks can only indicate and open filament or a shorted magnetron To diagnose for an open filament or a shorted magnetron 1 Isolate magnetron from the circuit by disconnecting the leads 2 A continuity check across magnetron filament terminals should indicate 0 1 or less 3 A continuity check between each filament terminal and magnetron case should read open 5 Fuse If the fuse in the primary and
3. RD AZ103 c RESISTOR R18 1 6W 1M 5 RD AZ105 RESISTOR R19 1 4W 51 5 R D 42510 REGULATOR VLI MC7905C 1MC7905C TRANSISTOR Q1 5 9 11 KRA 102M TZRA102M gt TRANSISTOR Q6 KTA 1270Y TZTA1270Y TRANS POWER LVTI DMR 631FS 5EPV035303 e WIRE COPPER J1J21 1 0 52 TIN COATING 85801052GV WIRE COPPER 5 1 5 4 1 0 52 TIN COATING 858010526Y IC MICOM IC TMP47C440B NF 87 1365861GH0 o RESONATOR CERA CRI KBR 4 0MSTF 5PKBRA40MKS LI c SW RELAY RY1 G5G 1A DC12V 55C0101121 SW RELAY RY2 G5B 1DC12V 5SC0101110 CAPACITOR CERA C6 102 50V Z AXIAL CCZB1H102K CAPACITOR CERA C1 5 C7 104 50V Z AXIAL 31 CCZF1H104Z EXPLODED VIEW AND PARTS LIST Refer to Disassembly and assembly 1 DOOR ASSEMBLY Refer to Disassembly and assembly 2 CONTROL PANEL ASSEMBLY 3 TOTAL ASSEMBLY FOQ F08 Caution In this Service 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
4. d be B Referto SPECIFICATIONS W 10 0 1 Water load should be measured exactly to 1 liters 2 Input power voltage should be exactly specified voltage Refer to SPECIFICATIONS 3 Ambient temperature should be 20 2 C 68 3 6 F Heating time for power output A second 70 64 60 56 52 49 41 44 42 40 38 8 W 600 650 100 150 800 850 900 950 1000 1050 1100 22 MEASUREM ENTAND TEST 2 MCROWAVE RADIATION TEST 1 Make sure to check the microwave leakage before and after repair of adjustment 2 Always start measuring of an unknown field to assure safety for operating personnel from microwave energy 3 Do not place your hands into any suspected microwave radiation field unless the safe density level is known 4 Care should be taken notto place the eyes in direct line with the source of microwave energy 5 Slowly approach the unit under test until the radiometer reads an appreciable microwave leakage from the unit under the test PROCEDURE 1 Prepare Microwave Energy Survey Meter 600cc glass beaker and glass thermometer 100 C 212 F 2 Pour 275cc 15cc of tap water initially at20 5 C 68 9 F in the 600 cc glass beaker with an inside C diameter of approx 95 mm 3 5 in 3 Place itatthe center of the tray and set itin a cavity 4 Close the door and operate the oven 5 Measure the leakage by using Microwave Energy Survey Meter with dual ranges setto 2450MHz
5. svc dwe co kr 1 KOR 6316 631H PART CODE PART NAME EXPLODED VIEW AND PARTS LIST DESCRIPTION DOOR AS CONTROL PANEL AS Refer to disassembly and assembly 3510801310 CABINET PCM T0 6 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 3516109000 CAVITY WELD AS CAVITY WELD AS 3516109600 CAVITY JOINT AS CAVITY JOINT AS 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 7122401211 SCREW TAPPING 25 TRS 4X12 MFZN 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 35113ACNM5 CORD POWER AS 3X0 75 40X40 120 RTML CLAMP POWER CORD NYLON66 SCREW TAPPING 25 TRS 4X12 MFZN SCREW TAPPING 25 PAN 4X30 MFZN 3963324300 MOTOR SHADED POLE 220V 25W MW10GA M01 3512517000 GUIDE WIND PP 3511800300 FAN PP 30 GLASS 3518002200 MAGNETRON 2M218H MF I 3516004000 SCREW SPECIAL T2 BOLT FLANGE 5X12 DACRO 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3513003200 HOLDER HV CAPACITOR SECC T0 6 3518301900 CAPACITOR HV 2100VAC 0 84uF 187 3518400400 DIODE HV HVR 1X 3AB 12KV 187 3518113900 TRANS HV DY N80P0 63T 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 3510311700 BASE SBHG T0 8 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 3512100900 FOOT PP DASF 130 72
6. the oven may overheat and eventually cause failure Away from radio and TV sets Poor television reception and radio interference may result if the oven is located close to a TV radio antenna or feeder and so on Position the oven as far from them as possible Away from heating appliances and water taps Keep the oven away from hot air steam or splash when choosing a place to position it or the insulation might be adversely affected and breakdowns occur Power supply Check your local power source This microwave oven requires a current of approximately 6 amperes 220 Volts 60 Hz Power supply cord is about 0 8 meters long The voltage used must be the same as specified on this oven Using a higher voltage may result in a fire or other accident causing oven damage Using low voltage will cause slow cooking We are notresponsible 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 of same type Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person 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 Do not operate the oven if itis colder than room temperature This may occur during delivery in co
7. ZE DON v AJAYA L QIOH ve 151 Oe SSV c Lol 64 Y gly Vo o HE zaz VER 1937 19 e HA 21 29 V Caution In this Service 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 PRINTED CIRCUIT BOARD 3 P C B LOCATION NO 1 KOR 631G 631H NAME SYMBOL SPECIFICATION PART CODE BUZZER BZ1 BM 20K 3515600100 C ARRAY CAl 7P 6 102 M 50V CN6XB 102M CAPACITOR ELEC ECI 16V RSS 100uF CEXF1C101V CAPACITOR ELEC EC 25V RSS 1000uF CEXF1E102V CONNECTOR WAFER CNI YW396 02AV 3519150520 CONNECTOR WAFER CN2 YW396 05AV 3519150510 CONNECTOR WAFER CN3 FCZ254 11 441M 367160 DIODE RECTIFY D1 6 9 12 1N4148 DZN4148 gt C DIODE RECTIFY D13 14 1N4002A DZN4002A c DIODE ZENER ZD1 5 1VB 1 2W DZTZ5R 1B DIODE ZENER ZD2 MTZ 3 9VB 1 2W D ZTZ3R9B mm LED DISPLAY DP1 DDG 631
8. 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 PRINTED CIRCUITBOARD 2 KOR 861G 861H z SYMBOL SPECIFICATION PART CODE BUZZER BZ1 BM 20K 3515600100 C ARRAY CAl 7P 6 102 M 50V CN6XB 102M CAPACITOR ELEC ECI 16V RSS 100uF CEXF1C101V CAPACITOR ELEC EC2 25V RSS 1000uF CEXF1E102V CONNECTOR WAFER CNI YW396 02AV 3519150520 CONNECTOR WAFER CN2 YW396 05AV 3519150510 CONNECTOR WAFER CN3 FCZ254 11 441M 367160 DIODE RECTIFY D1 6 9 12 1N4148 DZN4148 ojl u oal a AJ wj NJ rmn DIODE RECTIFY D13 14 1N4002A DZN40024 c DIODE ZENER ZD1 MTZ 5 1VB 1 2W DZTZ5R 1B mm DIODE ZENER ZD2 MTZ 3 9VB 1 2W D ZTZ3R9B LED DISPLAY DP1 DDG 631H DDDG631H PCB MAIN M158 81 5X139 9 3514315410 Es R ARRAY HA 6 1 8 100K J RA 87X104J mm RESISTOR R1 R7 1 6W 330 5 RD AZ331 e RESISTOR R8 10 12 14 22 1 6W 1K 5 RD AZ102 RESISTOR R11 20 21 1 6W 100K 5 RD A2104J mm oo RESISTOR R13 1 6W 100 5 RD AZ101 wo RESISTOR R15 17 1 6W 10K 5
9. measurement 1 5 When the digital clock does not operate properly referto Circuit Diagram Point 5 WAVE FORM T 16 67ms 60Hz If clock does not keep exacttime you must check resistor R 15 16 zener diodeZD1 28 PRINTED CIRCUIT BOARD 2 P C B CIRCUIT DIAGRAM LA P K ER o gg l WS 2 e gs 9 9 e o ars asp WS 2 0 55 EN f LA 4 H le ae SN S 9 L 8 6 iQ ocu 2 1 i w 0 JW z x EZ NINOL NINL 23501 I W we Mm ae 18083 vs dans E F uw le ISI L NIHAL 30010 HS AMLINOd wan I L L CH 57 iD er Leen faon T EN d IOL g g g a e je EE EEN NI ONA 29V83A38 NNOOdOd O 6 d o o 31 e di i oo A dd _ i l 69 v9 9 c9 A N 9 F wat 9 EY L 9H 7 0l Di S 24 L S RI g vH 0 9L Sl 92 Le 82 62 V i EZ c 0c 6l 81 DI EG 25 LO OSH CH 4 04d 00 LOJ 207 0 168 063 eeu 18 Zld 02 fld ld 01 INY v 1nOX
10. of 7 OQ or infinite gt Defective low gt Replace primary winding of low voltage voltage transformer Approx transformer 150 310 normal el Disconnect high voltage gt Fuse again Defective high rn Replace fuse and operate the unit blows voltage transformer 18 TROUBLE SHOOTING GUIDE CONDITION CHECK RESULT CAUSE REMEDY Outlet has Check continuity of No Defective Replace proper voltage magnetron gt Continuity magnetron Fuse does not blow eu E Check continuity of No Defective line Replace noise filter board Continuity filter board Check continuity of No Open power H Replace power supply cord Continuity P supply cord pn Normal l Defective touch gt Adjust control circuit All these switches must be replaced at the same time please refer to Interlock Mechanism And Adjustment TROUBLE 2 Display shows all figures selected but oven does not start cooking even though desired program and time are set and start pad is tapped CONDITION CHECK RESULT CAUSE REMEDY Turn table d Check continuity of No Malfunction Adjust or
11. will automatically shut off To restart the oven close the doorand then touch START 6 Each time a pad is touched a BEEP will sound to acknowledge the touch 7 The oven automatically cook on full power unless setto a lower power level 8 The display will show 0 when the oven is plugged in 9 Time clock returns to the present time when the cooking time ends 10 When the STOP CLEAR pad is touched during the oven operation the oven stops cooking and all information retained To erase all information except the present time touch the STOP CLEAR pad once more If the oven door is opened during the oven operation all information is retained 11 If the START pad is touched and the oven does not operate check the area between the door and door is closed securely The oven will not start cooking under the door is completely closed or the program has been reset Make sure the oven is properly installed and plugged into the electrical outlet Wattage output chart The power level is setby pressing the Power pad The chartshows the display the power level and the percentage of power N w Touch Power pad Power level Display Approximate Percentage of Power Once P HI 100 Twice P 90 90 3 times P 80 80 9 4 times P 70 70 5 times P 60 60 6 times P 50 50 9 7 times P 40 40 9 8 times P 30 30 9 9 times P 20 20 10 times P 10 10 11 times P 00 0 9 DISASSEMBLY AND ASSE
12. 1 Measured radiation leakage must not exceed the value prescribed below Leakage for a fully assembled oven with door normally closed must be less than 4mW cm 2 When measuring the leakage always use the 5 cm 2 in space cone with probe Hold the probe perpendicular to the cabinet and door Place the space cone of the probe on the door cabinet door seem door viewing screen the exhaust air vents and the suction air vents 3 Measuring should be in a counter clockwise direction ata 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 ofthe door keep the probe perpendicular to the areas making sure the probe end at the base of the cone does notget closer than 2 in from any metal If it does not erroneous reading may result 23 MEASUREM ENTAND TEST 3 COMPONENT TEST PROCEDURE gt High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle p Itis neither necessary nor advisable to attempt measurement of the high voltage p Before touching any oven components or wiring always unplug the oven from its power source and discharge the capacitor High voltage transformer 1 Remove connections from the transformer terminals and check continuitv 2 Normal readings should be as follows Secondary winding Approx 100 10 Filament winding Approx 0 Primary winding Approx 1
13. 13702600 LEVER LOCK POM 3513811700 LOCK POM 3513601600 LAMP BL 240V 25W T25 H187 7121400611 SCREW TAPPING T25 PAN 4X6 MFZN 3966310100 MOTOR SYNCRO 220V 2 5W GM 16 24FD12 3966310110 MOTOR SYNCRO 220V 2 5W M2LJ 492752 3518905300 THERMOSTAT OFF 75 ON 65 H 187 NB 3513003400 HOLDER THERMOSTAT PBT 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3511406200 COVER WAVE GUIDE HEATPROOF PP 4418D10032 COUPLER PPS 3514700900 ROLLER TEFLON 3512509200 GUIDE ROLLER pp 3517203500 TRAY 34 GLASS DAEWOO DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P 0 BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail G7F00E web dwe co kr FAX 02 360 8184 TEL 02 360 8179 8180 PRINTED DATE NOV 1998
14. 4 When checking the continuity ofthe switches fuse or high voltage transformer disconnect one lead wire from these parts and check continuity with the AC plug removed To do otherwise may resultin a false reading or damage to your meter When electric parts are checked be sure the power cord is not inserted the wall outlet Check wire harness wiring and connected of the terminals and power cord before check the parts listed below TROUBLE 1 Oven does not operate at all any inputs can not be accepted CONDITION CHECK RESULT CAUSE REMEDY Fuse blows H Check continuity of Malfunction gt Replace interlock monitor switch RH Continuity rk ofinterlock NOTE 1 with door closed monitor COM NC switch gt No Continuity Check continuity ofboth y No Continuity malfunction of pn Replace primary and secondary interlock switch NOTE 1 interlock switch with door colosed Continuity f Check continuity of primary Continuity P Shorted contacts gt Replace interlock switch contact of primary NOTE I with door partially open interlock switch until interlock monitor switch contact close COM 5N0 Check continuity
15. 72400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3515201101 STOPPER HINGE U SCP 1T2 5 4415A17352 SW MICRO VP 533A 0F SPNO 187 2006 4415A66600 SW MICRO VP 532A OF SPNC 187 200G 4415A17352 SW MICRO VP 533A OF SPNO 187 2006 3513702600 LEVER LOCK POM 3513811700 LOCK POM 3513601600 LAMP BL 240V 25W T25 H187 7121400611 SCREW TAPPING T25 PAN 4X6 MFZN 3966310100 MOTOR SYNCRO 220V 2 5W GM 16 24FD12 3966310110 MOTOR SYNCRO 220V 2 5W M2LJ 492752 3518905300 THERMOSTAT OFF 75 ON 65 H 187 NB 3513003400 HOLDER THERMOSTAT PBT 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3511406200 COVER WAVE GUIDE HEATPROOF PP 3517400620 COUPLER XAREC 3514700710 ROLLER TEFLON 3512517300 GUIDE ROLLER PP 5113MF6 A353B 3517203600 TRAY 33 GLASS V Caution In this Service 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 EXPLODED VIEW AND PARTS LIST 2 8616 861H PART CODE PART NAME DESCRIPTION DOOR AS CONTROL PANEL AS Refer to Disassembly and assembly 3510801400 CABINET PCM T0 6 7112401011 SCREW TAPPING TI TRS 4X10 MF
16. ER SCREENSO ACRVL 3515304610 SUPPORTER BARR 5 0 PP 3515204100 STOPPER HINGE T AS KOR 631505 3511705500 DOOR WELD AS KOR 611505 3517002800 BARRIER SCREEN l POLYESTER T0 1 3512300200 GASKET DOOR PP 3513100700 HOOK POM 3515101300 2 KOR 861G 861H SPRING HOOK PW1 e e e e e ee Ehl REF NO PART CODE PART NAME DESCRIPTION QTY REMARK A01 3512204100 FRAME DOOR ABS XR 401 H 2938 1 A02 3517003150 BARRIER SCREEN O ACRYL 1 A03 3515304410 SUPPORTER 5 0 1 04 3515204100 STOPPER HINGE T AS KOR 631505 l A05 3511705620 DOOR WELD AS KOR 812505 l A06 3517002900 BARRIER SCREEN 3 POLYESTER T0 1 1 A07 3512300400 GASKET DOOR PP 1 A08 3513100700 HOOK POM 1 A09 3515101300 SPRING HOOK PW1 1 DISASSEMBLY AND ASSEMBLY 1 Remove the gasket door from door weld as 2 Remove the barrier screen inner from door weld as 3 Remove the door frame from door weld as 4 Remove the stopper hinge top from door weld as 5 Remove the spring and the hook 6 Remove the supporter barrier screen outer from door frame 7 Remove the barrier screen outer from door frame 8 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 gt Loosen a screw on stopper hinge top and then push the
17. H DDDG631H PCB MAIN M158 81 5X139 9 3514315410 m R ARRAY HA 7P 6 1 8 100K J RA 87X104 RESISTOR R1 R7 1 6W 330 5 RD Z331 mm e RESISTOR R8 10 12 14 22 1 6W 1K 5 RD AZ102 RESISTOR R11 20 21 1 6W 100K 5 RD AZ104 mm oo RESISTOR R13 1 6W 100 5 RD AZ101 wo RESISTOR R15 17 1 6W 10K 5 RD AZ103 c RESISTOR R18 1 6W 1M 5 RD AZ105 RESISTOR R19 1 4W 51 5 R D 42510 REGULATOR VLI MC7905C 1MC7905C TRANSISTOR Q1 5 9 11 KRA 102M TZRA102M TRANSISTOR Q6 KTA 1270Y TZTA1270Y TRANS POWER LVTI DMR 631FS 5EPV035303 ec WIRE COPPER J1 J21 1 0 52 TIN COATING 85801052GY WIRE COPPER d 1 0 52 TIN COATING 85801052GV IC MICOM IC TMP47C440B NF87 1365861GH0 wo RESONATOR CERA CRI KBR 4 0MSTF 5PKBR40MKS cx SW RELAY RY1 G5G 1A DC12V 55C0101121 SW RELAY RY2 G5B 1DC12V 5SC0101110 CAPACITOR CERA C6 102 50V Z AXIAL CCZB1H102K CAPACITOR CERA C1 5 C7 104 50V Z AXIAL 30 CCZF1H104Z Caution In this Service Manual some parts can
18. K B01 3518521220 SWITCH MEMBRANE KOR 861G05 1 3518521230 KOR 861H05 B02 3516720200 CONTROL PANEL ABS XR 401 H 2938 1 B03 PKMPMSNEOO PCB MAIN AS KOR 860A0S l B04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4 B05 3513702700 LEVER DOOR OPEN ABS XR 401 H 2938 1 B06 4416 430171 SPRING BUTTON SWP DIAO 7 1 B07 3516906900 BUTTON DOOR OPEN ABS XR 401 H 2938 1 14 DISASSEMBLY AND ASSEMBLY 1 Remove the screw which secure the control panel push up two snap fits and draw forward the control panel assembly 2 Remove the door open lever from the control panel 3 Remove four screws which secure the PCB assembly to control panel 4 Disconnect membrane tail from the connector ofthe PCB assembly 5 Detach membrane from the control panel 6 Remove door open button and button spring from the control panel 7 Reverse the above steps for reassembly 6 To remove high voltage capacitor 1 Remove a screw which secure the grounding ring terminal ofthe 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 the magnetron 2 Remove the magnetron 3 Reverse the above steps for reassembly NOTE Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent microwave leakage Whene
19. MBLY Cautions to be observed when trouble shooting Unlike many other appliances the microwave oven is high voltage high current equipment Itis completely safety during normal operation However carelessness in servicing the oven can result in an electric shock or possible danger from a short circuit You are asked to observe the following precautions carefully 1 Always remove the power plug from the outlet before servicing 2 Use an insulated screwdriver and ware rubber gloves when servicing the high voltage side 3 Discharge the high voltage capacitor before touching any oven components or wiring 1 Check the earthed Do notoperate on a two wire extension cord The microwave oven is designed to be used with earthed It is imperative therefore to makes sure itis earthed properly before beginning 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 12A fuse is blown out due to the operation of the monitor switch replace primary interlock switch secondary interlock switch and interlock monitor switch 5 After repair or replacement of parts make sure that the screws are properly tightened and al
20. SM a Service Manual Microwave Oven Model KOR 631G0P KOR 631H0P KOR 861G0P KOR 861H0P v Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you the latest parts information please refer to PPL Parts Price List in Service Information Center http svc dwe co kr 4 DAEWOO ELECTRONIGS CO LTD PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY a Do not operate or allow the oven to be operated with the door open b Make the following safety checks onallovens to be serviced before activating the magnetron or other microwave source and make repairs as necessary 1 Interlock operation 2 Proper door closing 3 Seal and sealing surfaces arcing wear and other damage 4 Damage to or loosening of hinges and latches 5 Evidence of dropping or abuse c Before turning on power to the microwave oven for any Service test or inspection within the microwave generating compartments check the magnetron wave guide or transmission line and cavity 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 A microwave leaka
21. ZN 3516109200 CAVITY WELD AS CAVITY WELD AS 3516109700 CAVITY JOINT AS CAVITY JOINT AS 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 7122401211 SCREW TAPPING 25 TRS 4X12 MFZN 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 35113ACNM5 CORD POWER AS 3X0 75 40X40 120 RTML CLAMP POWER CORD NYLON66 SCREW TAPPING 25 TRS 4X12 MFZN SCREW TAPPING 25 PAN 4X30 MFZN 3963324300 MOTOR SHADED POLE 220V 25W MW10GA M01 3512517000 GUIDE WIND PP 3511800300 FAN PP4309 GLASS 3518002200 MAGNETRON 2M 218H MF JI 3516004000 SCREW SPECIAL T2 BOLT FLANGE 5X12 DACRO 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3513003200 HOLDER HV CAPACITOR SECC T0 6 3518301900 CAPACITOR HV 2100VAC 0 84uF 187 3518400400 DIODE HV HVR 1X 3AB 12KV 187 3518114200 TRANS HV DY N80P0 86T 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 3510311900 BASE SBHG T0 8 7112401011 SCREW TAPPING TI TRS 4X10 MFZN 3512100900 FOOT PP DASF 130 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 3515201101 STOPPER HINGE U SCP 1T2 5 4415A17352 SW MICRO VP 533A OF SPNO 187 200G 4415A66600 SW MICRO VP 532A OF SPNC 187 200G 4415A17352 SW MICRO VP 533A OF SPNO 187 2006 35
22. ck 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 hook pushes the button of the microswitch Then the button of the primary interlock switch bring itunder ON condition 2 Secondary interlock switch and interlock monitor switch When the door is closed the hook pushes the lock lever downward The lock lever presses the button ofthe interlock monitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it under ON condition ADJUSTMENT Interlock monitor switch When the door is closed the interlock monitor switch should be changed NO condition before other switches are closed When the door is opened the interlock monitor switch should be changed NC condition after other switches are opened 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 completed d Tighten completely one mounting screw Microwave emission test should be performed after adjusting interlock mechanism If the microwave emission exceed 4mW cm readjust interlock mechanism TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not 1 Check earthing before trouble checking 2 Be careful of the high voltage circuit 3 Discharge the high voltage capacitor
23. door to contactthe door seal to oven front surface p Tighten a screw 2 To reduce gap located on part B gt Loosen two screws on stopper hinge under and then push the door to contactthe door seal to oven front surface p Tighten two screws A small gap may be acceptable if the microwave leakage does not exceed 4mW cm V Caution In this Service 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 DISASSEMBLY AND ASSEMBLY 5 To remove control panel parts OY 28 SG d CONTROL PANEL ASSEMBLY PKCPSWZHOO KOR 631C PKCPSWZMOO KOR 631H PKCPSWNKOO KOR 861G PKCPSWNJOO KOR 861H 1 KOR 6316 631H PART CODE PART NAME DESCRIPTION REMARK 3518520900 3518520910 SWITCH MEMBRANE KOR 631G 05 KOR 631H05 3516719000 CONTROL PANEL ABS XR 401 H 2938 PKMPMSZA00 PCB MAIN AS KOR 631H05 7122401211 SCREW TAPPING T25 TRS 4X12 MFZN 3513702700 LEVER DOOR OPEN ABS XR 401 H 2938 4416430171 SPRING BUTTON SWP DIAO 7 3516906900 2 KOR 861G 861H BUTTON DOOR OPEN ABS XR 401 H 2938 REF NO PART CODE PART NAME DESCRIPTION QTY REMAR
24. etron terminal and magnetron i magnetron body Check resistance of m Ont Defective p Replace primary and secondary high voltage coil of high voltage transformer transformer Check continuity of pn Defective re Replace magnetron with wires Continuity magnetron removed Check continuity of No ri Defective rr Replace filament terminal of high Continuity high voltage voltage transformer transformer Check D C voltage gt OV Defective rr Replace being supplied to touch control RELAY RY1 coil circuit Approx Faulty Replace 15 VDC contacts or RELAY RY 1 or open relay coil 20 TROUBLE SHOOTING GUIDE TROUBLE 4 The following visual conditions indicate a probable defective touch control circuit or membrane switch LA 4 c 8 9 Incomplete segments 1 Segments missing 2 Partical segments missing 3 Digit flickering other than normal display slight flickering 4 10 does not display when power is on A distinct change in the diplay are noton when they numbers is the display Display indicates a number different from one touched Display obviously jumps in time while counting down Display counts down noticeably too fast while cooking or more digits in the diplay are not on when they should be Oven is programmable and cooks normally but no display shows 10 Display does not show the ti
25. ge check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner TABLE OFCONTENTS l SAFETY AND PRECAUTIONS 2 IFOR SAFE OPERATION LLA ain Cinca abl na 2 2 FOR SAFE SERVICE PROCEDURES eot Ur 2 SPEGIFICATIONS 3 EXTERNAL VIEW iii d 4 IL QUTER DIMENSION Seite til ebd tdi bei cedat du 4 2 FEATURE NEE 5 CR 6 INSTALLATION 8 OPERATIONS AND FUNCTIONS U p L ca 9 DISASSEMBLY AND ASSEMPI V 10 INTERLOCK MECHANISM AND ADJUS TMIENT 17 TROUBLE SHOOTING GUIDE i ai uc cepta sec ki ra cct usn 18 MEASUREMENT AND TEST ar nt 22 1 MEASUREMENT OF TRE MICROWAVE POWER OUTPUT 22 2 MICROWAVE RADIATION FORE red iaa tid 23 3 EOMPONENTTESEPROGEDURE ssec 24 WIRING DIAGRAM 25 PRINTED CIRCUIT BOARD iii UU Ua ai iui 26 I IRGDITCHEEK PROCEDURE 26 2 P G B CIRCUII DIAGRAM 29 3 PCB LOCATION M 30 EXPLODED VIEW AND PARTS LIST ie u u 32 I DOOR ASSEMBLY E 32 2 CONTROL PANEL EE 32 AE GE 32 1 SAFEIY AND PRECAUTIONS 1 FOR SAFE OPERATION Damage that allows t
26. he microwave energy that cooks or heats the food to escape will result in poor cooking and may cause serious bodily injury to the operator IF ANY OF THE FOLLOWING CONDITIONS EXIST OPERATOR MUST NOT USE THE APPLIANCE Only a trained service personnel should make repairs 1 A broken door hinge 2 A broken door viewing screen 3 A broken front panel oven cavity 4 A loosened door lock 5 A broken door lock The door gasket plate and oven cavity surface should be kept clean No grease soil orspatter should be allowed to build up on these surfaces or inside the oven DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOR OPEN The microwave oven has concealed switches to make sure the power is turned off when the door is opened Do notattempt to defeat them DO NOT ATTEMPT TO SERVICE THIS APPLIANCE UNTIL YOU HAVE READ THIS SERVICE MANUAL 2 FOR SAFE SERVICE PROCEDURES 1 If the oven is operative prior to servicing a microwave emission check should be performed prior to servicing the oven 2 If any certified oven unitis 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 unitat no costto 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 door open the service person should tell
27. in 90 sec FUNCTION SELECTIONS MICROWAVE POWER SELECTIONS 10 LEVELS CAVITY VOLUME 0 7 CuFt 0 9 Cu Ft d SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE EXTERNAL VIEW 1 OUTER DIMENSION KOR 631 861 465 495 _ 360 388 279 294 Fig 1 Front View Fig 2 Side View EXTERNAL VIEW 2 FEATURE DIAGRAM N gt nN O 9 DOOR SEAL Door seal maintains the microwave within the oven cavity and prevents microwave leakage DOOR HOOK When door is closed it will automatically lock shut If dooris opened while oven is operating magnetron tube will immediately stop operating DOOR SCREEN Allows viewing of food Microwave cannot pass through perforations in screen SPATTER SHIELD Protects the microwave outlet from splashes of cooking foods OVEN LAMP Automatically turns on during oven operating SAFETY INTERLOCK SYSTEM CONTROL PANEL GLASS COOKING TRAY Made of special heat resistant glass The tray must always be in proper position before operating Do not cook food directly on the tray OVEN FRONT PLATE 10 DOOR OPENING BUTTON To open the door push the door opening button When d
28. l electrical connections are tightened 6 Do not operate without cabinet Service personnel should remove their watches whenever working close to or replacing the magnetron WARNING When servicing the appliance need a care of touching or replacing high potential parts because of electrical shock or exposing microwave These parts are as follows HV Transformer Magnetron HV Capacitor HV Diode 10 DISASSEMBLY AND ASSEMBLY 1 To remove cabinet 1 Remove three screws on cabinet back 2 Push the cabinet backward 2 To remove door assembly 1 Remove a screw which secure the stopper hinge top 2 Remove the door assembly from top plate of cavity 3 Reverse the above for reassembly NOTE After replacing the door assembly perform a check of correct alignment with the hinge and cavity front plate V Caution In this Service 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 DISASSEMBLY AND ASSEMBLY 3 To remove door parts gt Co gt DOOR ASSEMBLY 3511710300 KOR 631 3511710700 KOR 861 1 KOR 6316 631H PART CODE PART NAME DESCRIPTION REMARK 3512203800 FRAMEDOOR ABS XR 401 H 2938 3517003050 BARRI
29. ld weather Allow the oven to become room temperature before operating EARTHING INSTRUCTIONS This appliance must be earthed In the event of an electrical short circuit earthing reduces the risk of the electric shock by providing an escape wire for the electric current This appliance is equipped with a cord having a earthing wire with a earthing plug The plug must be plugged into an outletthat is properly installed and earthed WARNING Improper use of the earthing plug can result in a risk of electric shock Consulta qualified electrician or serviceman if the earthing instructions are not completely understood or if doubt exists as to whether the appliance is properly earthed and either If itis necessary to use an extension cord use only a 3 wire extension cord that has a 3 blade earthing plug and a 3 slot receptacle that will accept the plug on the appliance The marked rating of the extension cord should be equal to or greater than the electrical rating of the appliance or Do not use an extension cord OPERATIONS AND FUNCTIONS KA Connect the main lead to an electrical outlet After placing the food in a suitable container open the oven door and putiton the glass tray The glass tray mustalways be in place during cooking Close the door securely When the oven door is opened the light turns off The oven door can be opened at any time during operation by touching the door release button on the control panel The oven
30. ltage is within 5 of nominal voltage 2 Voltage Check Key check point NO CHECK POINT REMARK 1 ICI PIN 2 21 30 34 5VDC 2 IC1 PIN 35 d DN T 16 67ms 60Hz 3 IC1 PIN 31 OR 32 5y 250 ns 4MHz Check method NO MEASURE POINT WAVE FORM REMEDY REMARK 1 MP1 DC 5V 0 25V Replace VL1 EC1 NO LOAD 2 MP2 DC 12V 2 0V Replace EC2 D12 13 14 NO LOAD Each measure point must be measured with GND points 26 Measure Point PRINTED CIRCUIT BOARD 3 When there is no microwave oscillation 1 When touching START pad oven lamp does not turn on Fan motor do not rotate but cook indicator in display comes on Cause RELAY 2 does not operate refer to Circuit Diagram Point 3 Check method RELAY 2 ON RELAY 2 OFF 2 When touching START pad oven lamp turns on Fan motor and turntable rotate and cook indicator in display comes on Cause RELAY 1 does not operate refer to Circuit Diagram Point 2 Check method POINT STATE RELAY 1 ON 5VDC GND RELAY 1 OFF GND 12VDC 4 When the door is opened during operation the count down timer does not stop refer to Circuit Diagram Point 1 Check method 1 DOOR OPEN 2 DOOR CLOSED CHECK NO METHOD REMEDY Check the stage ON OFF of the door open monitor switch by resistance Replace door open monitor switch
31. me of day when clear pad is touched D 0 poy Ufe HI Ce CO J KI VC Uc M W DEF TIMER LOCK g Display does notcount down or up with time cooking or clock operation Specific numbers for example 2 or 3 will not display when the panel is touched 11 ven lamp and turntable motor do not stop although cooking is finished Check if the RELAY 2 contacts close if they are close replace touch control circuit CONDITION CHECK Display does not show programming atall even if keyboard is touched Check each pad for continuity of the membrane keyboard forthe following keyboard check procedure RESULT CAUSE REMEDY Normal gt Malfunction gt Replace of touch control box control circuit sub assembly of control box sub assembly Abnormal rk Malfunctionof m gt Replace the the membrane keyboard membrane keyborad Before following the particular steps listed above in the trouble shooting guide for the membrane keyborad s failure please check for the continuity of each wire harness between the membrane keyboard and P C B assembly 21 MEASUREM ENTAND TEST 1 MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly measuring the temperature rise of a certain amoun
32. monitor switch circuit is blown when the door is opened check the primary and monitor switch before replacing the blown fuse In case the fuse is blown by an improper switch operation replace the defective Switch and fuse at the same time Replace just the fuse if the switches operate normally 24 WOH 48 MOTIVNI 3 Ig WIRING DIAGRAM 40 000 mmm 3 MO wn In IT 3901 5000 YOLON Do gl TU mp dl vumm du 70 190050 W Qj HON mE m l l M mm e HOLMS e n NOMLJNOYN N 39 ND SS 000 QC T l HOLMS qd rm Gees YOO HIN EU TIONIS j jj 915 Ru 1 19 SW WHINY C m i D ay Hit 10 ASN mum HOH TI NM 25 PRINTED CIRCUITBOARD 1 CIRCUIT CHECK PROCEDURE 1 Low voltage transformer check The low voltage transformer is located on the P C B Measuring condition Input voltage 220 V Frequency 60Hz Terminal Voltage LOAD NO LOAD 4 AC 12 6 V AC 14 7 V 1 Referto Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source voltage 3 The allowable tolerance of the secondary vo
33. motor and primary interlock switch Continuity of primary replace oven lamp do interlock not turn on Switch Check continuity of No Malfunction Adjust or P secondary interlock and Continuity of secondary replace D O M switches interlock and D 0 M switch Check D C voltage gt 0v gt Defective I Replace Ly being supplied to touch control RELAY RY2 coil circuit Approx Faulty gt Replace P 15VDC contactsof RELAY RY2 oropen relay coil TROUBLE SHOOTING GUIDE TROUBLE 3 No microwave oscillation even though fan motor rotates CONDITION CHECK RESULT CAUSE REMEDY No microwave Check continuity of high gt No Continuity oscillation voltage fuse Replace high voltage fuse L Check continuity ofhigh TA Continuity pn Defective rr Replace voltage capacitor high voltage terminals with wires transformer removed Check continuity of high 9 Continuity in Defective rn Replace voltage rectifier in o high voltage forward and backward irection rectifier direction with DC megger Connect megger leads to gt Continuity gt Defective rr Replace magn
34. oor is closed it will automatically lock shut If door is opened while oven is operating magnetron tube will immediately stop operating 11 ROLLER GUIDE Supports the glass cooking tray EXTERNAL VIEW 3 CONTROL PANEL 1 KOR 631G 861G 10 HB HH OEC ONE M W DEF TIMER LOCK g 1 BREAD 2 S0UP 3 BAKED POTATO Auto 4 FRESH VEGETABLE Cook 5 FROZEN VEGETABLE asta uy Dish Warmer Frozen Pizza amp T 2 Auto Defrost Fish Poultry Meat a MS NS 10M 1 105 JF gt Power prat Defrost Clock IO STOP START CLEAR SPEEDY COOK 1 Time set pad Used to set the cooking time and the present time 2 Display Cooking time power level indicators and present time are displayed 3 One touch Used to cook or reheat specific quantities of food 4 Auto cook Used to cook or reheat 5 More Used to add time to cooking 6 Less Used to remove time from cooking Auto Defrost Used to defrost foods for weight 8 Power Used to set power level 9 Defrost Used to defrost foods for time 10 Kitchen Timer Used as a minute timer delay cooking hold setting after cooking 11 Clock Used to set clock 12 Stop Clear Used to stop the oven operation or to delete the cooking data 13 Start Speedy cook Used to start the oven and also used to seta reheat time
35. t of water exposed to the microwave as directed below PROCEDURE 1 Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at its maximum microwave power setting with a load of 1000 5cc of potable water n The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm LA The oven and the empty vessel are at ambient temperature prior to the start of the test The initial temperature of the water is 10 2 50 3 6 F Itis measured immediately before the water is added to the vessel After addition of the water to the vessel the load is immediately placed on the center of the shelf which is in the lowest normal position Cn Referto 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 c from the following formula Heating time should be exactly A seconds The initial and final temperature of water is selected so that the maximum difference between the ambient and final water temperature is 5K The microwave power output P in watts is calculated Microwave power is switched on P 4187X AT t AT is difference between tis the heating time The power measured shou initial and ending temperature
36. the usernotto operate the oven and contact the manufacturer immediately IMPORTANT The wire in this mains lead coloured in accordance with the following code Green and yellow Earth Blue Neutral Brown Live As the colours of the wires in the manins lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured green and yellow must be connected to the termianl in the plug which is marked with the letter E earth symbol or coloured green and yellow The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red NOTE This oven is designed for counter top use only SPECIFICATIONS MODEL KOR 631G H KOR 861G H POWER SUPPLV 220V 60Hz SINGLE PHASE WITH EARTHING MICROWAVE 1200W 1300W POWER CONSUMPTION GRILL COMBINATION MICROWAVE ENERGY OUTPUT 800W 900W MICROWAVE FREQUENCY 2450M Hz OUTSIDE DIMENSIONS W XH X D 465 279 x 360mm 18 3 x 11 0 x 14 2 in 495 x 294 x 388mm 19 5 x 11 6 x 15 3 in CAVITY DIMENSIONS W XH X D 290 x 220 x 306 mm 11 4 x 8 7 x 12 0 in 320 x 244 x 338mm 12 6 x 9 6 x 13 3 in NET WEIGHT APPROX 13Kg 28 7lbs APPROX 15Kg 33 1lbs TIMER 59 m
37. ver repair work is carried out on magnetron check the microwave leakage It shall notexceed 4mW cm for a fully assembled oven with door normally closed DISASSEM BLY AND ASSEMBLY Metallic Magnetron antenna Wave guide Magnetron antenna Dol Cooling fin Filament terminal Metallic gasket plate lt MAGNETRON gt 8 To remove wind guide assembly 1 Remove a screw which secure the wind guide assembly 2 Draw forward the wind guide assembly 3 Pull the fan from the motor shaft 4 Remove two screws which secure the motor shaded pole 5 Remove the motor shaded pole 6 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 16 INTERLOCK MECHANISM AND ADJ USIMENT The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation when the door is opened during operation and thus to perfectly prevent the danger resulting from the leakage of microwave Hook Primary interlock Switch Interlock monitor switch Button Door open monitor switch rear Lock lever Secondary interlock SEH Mounting screw Condition DOOR CLOSE Condition DOOR OPEN 1 Primary interlo
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