DAEWOO ELECTRONICS KOR-61852S Service Manual Download Page 30 | Manualshive

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29

REF NO.

PART NAME

PART CODE

DESCRIPTION

Q’TY

REMARKS

A00

DOOR ASS’Y

EXPLODED AND PART LIST

1

B00

CONTROL ASS’Y

1

F01

CABINET

3510801300

PCM TO.6

1

F02

SCREW TAPPING

7112401011

T1 TRS 4X10 MFZN

3

F03

SCREW TAPPING

7112401011

T1 TRS 4X10 MFZN

2

F04

SCREW MACHINE

7601400811

PAN 4X8 PW MFZN

2

F05

COVER *B

3511402500

SBGH TO.8

1

F06

MOTOR SHADED POLE

3963512100

MW10CA-R01

1

F07

FAN

3511800300

PP+30% GLASS

1

F08

SCREW TAPTITE

7272400811

TT3 TRS 4X8 MFZN

1

F09

DIODE H.V

4416V24000

HVR-1X-32B

1

F10

HOLDER HV CAPACITOR

3513001900

SECC TO. 8

1

F11

CAPACITOR H.V

441U667020

2100VAC 0.95uF

1

F12

LAMP

3513601600

BL 240V 25W T25

1

F13

LOCK

3513805700

POM

1

F14

SW MICRO

4415A17352

VP-533A-OF

1

F15

SW MICRO

4415A66910

VP-531A-OF

1

F16

SW MICRO

4415A17352

VP-533A-OF

1

F17

LOCK LEVER

3513701300

POM

1

F18

NOISE FILTER

3518603500

DWLF-1

1

F19

BASE

3510308700

SBHG TO.8

1

F20

SCREW SPECIAL

3516003700

TT3 FLG HEX 4X8 MFZN

4

F21

TRANS H.V

3518106210

JY-N8OSO-61T

1

F22

MOTOR SYNCRO

3966310100

GM-16-24FD12

1

F23

SCREW TAPPING

7121400611

T2S TRS 4X6 MFZN

1

F24

SCREW TAPPING

7112401011

T1 TRS 4X10 MFZN

5

F25

FOOT

3512100900

PP DASF-130

2

F26

SCREW TAPTITE

7272400811

TT3 TRS 4X8 MFZN

1

F27

STOPPER HINGE *U

3515201100

SCP-1 T2.5

1

F28

COUPLER

3517400600

PPS

1

F29

ROLLER

3514700900

TEFLON

3

F30

GUIDE ROLLER AS

3512510600

KOR-61150S

1

F31

TRAY

3517203600

GLASS

1

F32

COVER WAVE GUIDE

3511403200

PP

1

F33

SCREW SPECIAL

7272400811

TT3 TRS 4X8 MFZN

2

F34

CAVITY AS

3516104800

KOR-61150S

1

F35

SCREW TAPPING

7122401211

T2S TRS 4X12 MFZN

2

F36

SCREW TAPPING

7122401211

T2S TRS 4X12 MFZN

1

F37

CLAMP POWER CORD

4413A90012

NYLON 66

1

F38

SCREW TAPPING

7112401011

T1 TRS 4X10 MFZN

3

F39

CORD POWER AS

35113AAQ95

3X0.75 120 TRML

1

F40

MAGNETRON

3518002200

2M218H(MF) I

1

F41

SCREW SPECIAL

3516002700

T2S FLG HEX 4X13 SE MFZN

3

F42

FUSE H.V

3518700900

HV-41A 5KV 0.55A #250

1

F43

SLOW ACTING RELAY

3518570400

DWSR-1

1

FOR GERMANY

F44

SCREW TAPPING

7122401211

T2S 4X12 MFZN

1

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Summary of Contents for KOR-61852S

Page 1: ...Service Manual Microwave Oven Model KOR 61852S KOR 61850N KOR 61952S DAEWOO ELECTRONICS CO LTD ...

Page 2: ...cavity for proper alignment integrity and connection 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 e A microwave leakage check to verify compliance with the Federal Performance Standard should be perf...

Page 3: ... 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 seal area and oven cavity surface be kept clean No grease soil or spatter 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...

Page 4: ...FULL MICROWAVE POWER FREQUENCY 2450 MHz OUTSIDE DIMENSIONS WXHXD 465 X 274 X 364 mm CAVITY DIMENSIONS WXHXD 290 X 200 X 290 mm NET WEIGHT APPROX 13 5Kg TIMER 35 min DUAL SPEED POWER SELECTIONS 5 LEVELS CAVITY VOLUME 0 6 Cu Ft SPECIFICATIONS 274 465 364 0 1 2 3 4 5 6 7 8 9 10 15 20 25 30 35 Specifications are subject to change without notice ...

Page 5: ...king Tray Made of special heat resistant glass Food in a proper receptacle is placed on this tray for cooking 7 Roller guide This must always be used for cooking together with the glass cooking tray 8 Coupler this fits over the shaft in the center of the oven s cavity floor This is to remain in the oven for all cooking 9 Knob V P C Used to select a microwave power level 0 Knob timer Used in settin...

Page 6: ...y cord is about 1 0 meters long Do not use an extension cord If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard INSTALLATION 6 Examine the oven after unpacking for any damage such as Dents A misaligned door Broken door A dents in cavity If any of the above are visable do not install this oven CAUTION...

Page 7: ...imply adjust the Timer to the desired time 7 When the timer reaches zero a bell will ring and the unit will turn off Oven light turns off If additional cooking time is needed and the door is closed the oven will automatically start when the Timer is reset NOTE 1 When setting Timer for less than 2 minutes turn the Timer past 2 minutes and then return to the correct timer setting 2 Various clicking ...

Page 8: ...d 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 4 Microwave power is switched on 5 Heating time should be exactly 52 seconds Heating time is measured while the microwave generator is operating at full power The filament heat up time for magnetrons is not ...

Page 9: ...ly assembled oven with door normally closed must be less than 4mW cm2 When measuring the leakage always use the 2 in 5cm space cone with probe Hold the probe perpendicular to the cabinet door Place the space cone of the probe on the door cabinet door seam 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 inch sec...

Page 10: ...TERLOCK SWITCH UPPER TIMER ASSY TIMER SWITCH V P C NO COM INTERLOCK MONITOR SWITCH NC BK WH BL BL SECONDARY INTERLOCK SWITCH WH GY GY GY GY GY GY RD RD MAGNETRON 1 3 2 M NOTE RD RED NOTE WH WHITE NOTE BK BLACK NOTE GN GREEN NOTE BR BROWNNOTE OR ORANGE BL BLUE GY GRAY GE GREEN YELLOW CL CAVITY LAMP FM FAN BLOWER MOTOR GM GEARED MOTOR TM TIMER MOTOR V P C VARIABLE POWER CONTROLLER CONDITION DOOR CLO...

Page 11: ...Y TIMER SWITCH V P C NO COM INTERLOCK MONITOR SWITCH NC BK WH BL SECONDARY INTERLOCK SWITCH WH GY GY GY GY GY GY RD RD MAGNETRON 1 3 2 M NOTE RD RED NOTE WH WHITE NOTE BK BLACK NOTE GN GREEN NOTE BR BROWNNOTE OR ORANGE BL BLUE GY GRAY GE GREEN YELLOW CL CAVITY LAMP FM FAN BLOWER MOTOR GM GEARED MOTOR TM TIMER MOTOR V P C VARIABLE POWER CONTROLLER CONDITION DOOR CLOSED TIMER ON V P C HIGH RD RD NOT...

Page 12: ...ITCH UPPER TIMER ASSY TIMER SWITCH V P C NO COM INTERLOCK MONITOR SWITCH NC BK WH BL SECONDARY INTERLOCK SWITCH WH GY GY GY GY GY GY OR OR MAGNETRON 1 3 2 M RD RD NOTE RD RED NOTE WH WHITE NOTE BK BLACK NOTE GN GREEN NOTE BR BROWNNOTE OR ORANGE BL BLUE GY GRAY GE GREEN YELLOW CL CAVITY LAMP FM FAN BLOWER MOTOR GM GEARED MOTOR TM TIMER MOTOR V P C VARIABLE POWER CONTROLLER CONDITION DOOR CLOSED TIM...

Page 13: ...gh voltae transformer and this secondary voltage is increased by the action of the diode and the charging of the high voltage capacitor This resultant D C voltage is then applied to the anode of the magnetron As shown in Fig 2 the first half cycle of the high voltage produces in the high voltage transformer secondary charges the high voltage capacitor Current flow is in the direction of the dotted...

Page 14: ...to the high voltage transformer to stop microwave oscillation Fan motor timer motor and turntable motor stop rotating Oven lamp turn off As soon as the door is opened monitor switch close NC to create the short circuit If the contacts of primary interlock switch and secondary interlock switch are both malfunction the 12A fuse blows open due to the large current surge caused by monitor switch activ...

Page 15: ...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 insulted screw driver to discharge 4 When the 12A fuse is blown out due to...

Page 16: ...stopper hinge top 2 Remove the stopper hinge top Ł and door assembly Ø from top plate of cavity 3 Remove the stopper hinge top Łfrom door assembly 4 Reverse the above for reassembly taking care to replace fixing glue 3 To remove door parts NOTE After replacing the door preform a check of correct alignment with the hinge and cavity front face 1 3 2 ...

Page 17: ...en two screws 2 To reduce gap located on part B 1 Loosen three three screws on bottom hinge and then the door to contact the door seal to oven front surface 2 Tighten three screws 3 To reduce gap locatated on part C See Fig A 1 Loosen a screw on the interlock switch assembly located at the bottom of the oven body 2 Draw the interlock switch assembly inward as possible to engage with hook on the do...

Page 18: ...PC knob B01 and the flat spring B03 from the control panel B02 4 Remove two screws B08 which secure the timer ass y B07 5 Pull out the knob B09 from the timer ass y B07 6 Remove the timer ass y B07 7 Pull out the timer coupler B06 from the timer ass y B07 8 Remove the door open button B12 and button spring B11 from the control panel B02 9 Remove the door open lever B10 from the control panel B02 1...

Page 19: ...or holder Ø 2 Remove the H V diode Ł from the capacitor holder Ø 3 Reverse the above steps for reassembly High voltage circuit wiring 7 To remove magnetron 1 Remove three screws which secure the magnetron Ł 2 Remove the magnetron Ł 3 Reverse the above steps for reassembly 1 3 2 2 1 MAGNETRON H V CAPACITOR H V DIODE H V TRANSFORMER ...

Page 20: ... transformer Ł 2 Remove the transformer Ł 3 Reverse the above steps for reassembly CAUTION 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 magnetron check the microwave leakage It shall not exceed 4mW cm2 for a fully assembled oven with door normally cosed Magnetron antenna Metalli...

Page 21: ...sed 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 pushed the button of themicro switch Then the button of the primary interlock switch bring it under on condition ADJUSTMENT 1 When the door is closed the switch button is pushed by the hook The movement of the switch button should exceed 1 2mm measured at the top of the bu...

Page 22: ...he two mounting screws b Adjust interlock switch assembly position c Confirm the gap 1 2mm described above d Make sure that push lever moves smoothly after adjustments is completed e Completely tighten the two mounting screws 4 Interlock switch resplacement Whenever safety interlock switch are replaced 1 Refer to the following diagrma 2 Check the connection of monitor switch after replacement 3 Pe...

Page 23: ...interlock switch secondary interlock switch and interlock monitor switch All these switches must be replace at the same time Replace H V T Thermal cut out Outlet has Proper voltage Check continuity of H V T Thermal cut out Check continuity of power supply cord Replace high voltage transformer Replace high voltage Capacitor Replace primary secondary interlock switch and interlock monitor switch Rep...

Page 24: ...ontacts of a relay operate oven Normal reading should be approx 0Ω Meter with 6V or higher voltage batteries should be used to check the normal direction resistance of the diode NO GOOD Poor continuity Check the isolation of filament winding of high voltage transformer Faulty magnetron GOOD NO Replace or repair oven lamp light turntable motor NO continuity NO continuity continuity in the reverse d...

Page 25: ...e 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 diodes resistance will be infinite in one direction and several hundred KΩ in the other direction 4 Magnetron For complete magnetron diagnosis refer to Measurement of the Microwave Output Power Page 8 Continuity checks can only indicate and open filame...

Page 26: ...zero resistance ohmmeter Fig a Condition 1 Door is opened 2 Common terminal of the monitor switch disconnected 3 In case of secondary interlock switch ohmmeter Fig c Condition 1 Door is closed 2 In case of primary interlock check Lamp on or zero resistance ohmmeter Fig b Condition 1 Door is closed ƒN Schematic diagram of S W tester POWER SUPPLY CORD POWER SUPPLY CORD PRIMARY INTERLOCK S W PRIMARY ...

Page 27: ...DOOR 3512202030 ABS 1 KOR 6185OS N 3512202040 KOR 6195OS A02 BARRIER SCREEN O 3517003050 ACRYL 1 A03 SUPPORTER BARR S O 3515304610 PP 1 A04 STOPPER HINGE T AS 3515201500 KOR 6115OS 1 A05 DOOR WELD AS 3511705500 KOR 6115OS 1 A06 BARRIER SCREEN I 3517002800 POLYESTER T0 1 1 A07 GASKET DOOR 3512300200 PP 1 A08 HOOK 3513100700 POM 1 A09 SPRING HOOK 3515101300 PW1 1 ...

Page 28: ...SPRING FLAT 3515101600 SUS 301 T0 5 1 B04 COUPLER VPC KNOB 3517400500 POM 1 B05 SCREW TAPPING 7122401211 T2S TRS 4X12 MFZN 1 B06 COUPLER TIMER 3517400400 POM 1 B07 TIMER 3518203800 KN35MKD 24E P 1 B08 SCREW TAPPING 7122401211 T2S TRS 4X12 MFZN 2 B09 KNOB 3513402560 ABS H 2938 1 B10 LEVER DOOR OPEN 3513701420 ACETAL 1 B11 SPRING BUTTON 441G430171 SWP DIA 0 7 1 B12 BUTTON DOOR OPEN 3516904430 ABS H ...

Page 29: ...28 3 Main Unit ...

Page 30: ...CIAL 3516003700 TT3 FLG HEX 4X8 MFZN 4 F21 TRANS H V 3518106210 JY N8OSO 61T 1 F22 MOTOR SYNCRO 3966310100 GM 16 24FD12 1 F23 SCREW TAPPING 7121400611 T2S TRS 4X6 MFZN 1 F24 SCREW TAPPING 7112401011 T1 TRS 4X10 MFZN 5 F25 FOOT 3512100900 PP DASF 130 2 F26 SCREW TAPTITE 7272400811 TT3 TRS 4X8 MFZN 1 F27 STOPPER HINGE U 3515201100 SCP 1 T2 5 1 F28 COUPLER 3517400600 PPS 1 F29 ROLLER 3514700900 TEFLO...

Page 31: ... NO R61852S001 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 02 590 6291 TEX 02 360 7114 590 6151 5 PRINTED DATE JULY 1998 ...

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