LG MS-2645DPA Скачать руководство пользователя | Manualshive

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6-5

466001

466003

466001

43500A

WSZ085

LATCH BOARD PARTS

#EV#

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Содержание MS-2645DPA

Страница 1: ...N BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com 삼 흥 정 판 MICROWAVE OVEN SERVICE MANUAL MODEL MS 2645DPA 삼 흥 정 판 P NO 3828W5S5242 June 2005 Printed in Korea ...

Страница 2: ...r and other damage 4 damage to or loosening of hinges and latches 5 evidence of dropping or abuse C Before turning on microwave power 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...

Страница 3: ...TING SEQUENCE 4 2 SCHEMATIC DIAGRAM 4 3 CIRCUIT DESCRIPTION 4 4 SERVICE INFORMATION 5 1 TOOLS AND MEASURING INSTRUMENTS 5 1 MICROWAVE LEAKAGE TEST 5 1 MEASUREMENT OF MICROWAVE POWER OUTPUT 5 3 DISASSEMBLY AND ADJUSTMENT 5 3 INTERLOCK CONTINUITY TEST 5 7 COMPONENT TEST PROCEDURE 5 8 TROUBLE SHOOTING 5 11 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 CONTENTS ...

Страница 4: ...m 15 5 kg approx 17 0 kg approx Microwave Power for Variable Cooking Power level Max Full power throughout the cooking time Med High approx 80 of Full power Medium approx 60 of Full power Defrost approx 40 of Full power Low Warm approx 20 of Full power Owner s manual Glass turntable Rotating Ring 1 1 ITEM MODEL Power Requirement Power Output Microwave Frequency Magnetron Timer Outside Dimensions C...

Страница 5: ... operation of the microwave oven requires that the magnetron be assembled to the waveguide and cavity Never operate the magnetron unless it is properly installed Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron 2 1 CAUTIONS Unlike other appliances the microwave oven is high voltage and high current equipment Though it is free fro...

Страница 6: ...lat surface at least 10 cm 4 inches from the wall 7 Place the microwave oven as far away as possible from TV RADIO COMPUTER etc to prevent interference EARTHING INSTRUCTIONS This microwave oven is designed to be used in a fully earthed condition It is imperative therefore to make sure it is properly earthed before servicing WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT As the colors of the wire...

Страница 7: ...to cook the foods listed by one touch 6 AUTO REHEAT Used to select the auto reheat 7 AUTO DEFROST Used to select the auto weight defrost 8 STOP CLEAR Used to stop over and clear all entries except time of day 9 MORE LESS Used to change the cooking time desired weight 10 START QUICK START One tap allows over to begin functioning 11 COOK TIME Used to cook food for a desired time OPERATING INSTRUCTIO...

Страница 8: ...item entered or to the clock 3 CHILD LOCK This oven has a CHILD LOCK feature TO SET CHILD LOCK Touch the Stop pad Touch STOP pad L appear in the display TO CANCEL CHILD LOCK Touch the Stop pad Touch STOP pad L disappears 4 QUICK START 5 MICROWAVE COOKING 6 AUTO WEIGHT DEFROST 7 AUTO COOK 8 ONE TOUCH AUTO MENU 9 QUICK DEFROST 10 AUTO REHEAT Stop Clock Clock Set the hour Set the minutes Clock Stop P...

Страница 9: ...SCHEMATIC DIAGRAM 4 3 ...

Страница 10: ...pproximately 2100 volts AC is generated in the secondary of the high voltage transformer which is increased by the action of the high voltage diode and charging of the high voltage capacitor The negative 4 000 Volts DC is applied to the filament of the magnetron WHEN THE OVEN IS SET AT ANY LEVEL EXCEPT MAXIMUM The micom controller controls the ON OFF time of relay 2 by the applied signal to vary t...

Страница 11: ...ich is graduated to 600 cc and place the beaker on the center of the turntable Set the energy leakage monitor to 2 450 MHz and use it following the manufacturer s recommended test procedure to assure correct result When measuring the leakage always use the 2 inch 5cm spacer supplied with the probe Operate the oven at its maximum output Measure the microwave radiation using and electromagnetic radi...

Страница 12: ...he test probe must be removed no faster than 1 inch sec 2 5 cm sec along the shaded area otherwise a false reading may result The test probe must be held with the grip portion of the handle A false reading may result if the operator s hand is between the handle and the probe When testing near a corner of the door keep the probe perpendicular to the surface making sure the probe horizontally along ...

Страница 13: ...rature prior to the start of the test The initial temperature T1 of the water is 10 2 C It is 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 turntable which is in the lowest position and the microwave power switched on The time T for the temperature of the water to rise by a value T of 10 2 ...

Страница 14: ...VOLTAGE TRANSFORMER REMOVAL 1 Discharge the high voltage capacitor 2 Disconnect the leadwire from magnetron high voltage transformer and capacitor 3 Remove the screw holding the high voltage transformer to the baseplate F FAN MOTOR ASSEMBLY REMOVAL 1 Discharge the high voltage capacitor 2 Disconnect the leadwire from fan motor fuse board and high voltage capacitor 3 Remove the two screws holding t...

Страница 15: ...5 ml water load Make sure that gasket is rigidly attached to the magnetron To prevent microwave leakage tighten the mounting screws properly making sure there is no gap between the waveguide and the magnetron J REMOVING THE TURNTABLE MOTOR 1 Remove the turntable 2 Remove the turntable shaft VERY CAREFULLY with a slotted screwdriver 3 Lay the unit down on its back 4 Remove the turntable motor cover...

Страница 16: ...LATION AND ADJUSTMENT OF THE LATCH BOARD TO THE OVEN ASSEMBLY Mount the latch board to the oven assembly Adjust the latch board in the arrow direction so that oven door will not have any play in it when the door is closed Tighten the mounting screw Check for play in the door by pushing the door release button Door movement should be less than 0 5 mm 1 64 inch Don t push the door release button whi...

Страница 17: ... closed meter should indicate an closed circuit When the secondary switch operation is abnormal make the necessary adjustment or replace the switch only with the same type of switch C MONITOR SWITCH TEST Disconnect the wire lead from the monitor switch Connect the ohmmeter leads to the common COM and normally closed NC terminals of the switch The meter should indicate closed circuit in the door op...

Страница 18: ...TS TEST PROCEDURE RESULTS HIGH VOLTAGE TRANSFORMER Wire leads removed MAGNETRON Wire leads removed 1 Measure the resistance Ohm meter scale Rx1 Primary winding Secondary winding Filament winding 2 Measure the resistance Ohm meter scale Rx1000 Primary winding to ground Filament winding to ground 1 Measure the resistance Ohm meter scale Rx1 Between Filament terminal 2 Measure the resistance Ohm mete...

Страница 19: ...le Rx1000 Terminal to case Measure the continuity Forward Ohm meter scale Rx10000 Measure the continuity Reverse Ohm meter scale Rx10000 Normal Momentarily indicates several ohms and then gradually returns to infinite Normal Normal Continuity Abnormal Normal Abnormal Continuity NOTE When testing the magnetron be sure to install the magnetron gasket in the correct position and be sure that the gask...

Страница 20: ... REASON MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION WHEN REMOVING THE WIRE LEADS FROM THE PARTS BE SURE TO GRASP THE CONNECTOR NOT THE WIRES 20 40 60 80 100 6 sec 10 sec 14 sec 18 sec 22 sec 16 sec 12 sec 8 sec 4 sec 0 sec POWER LEVEL Relay 1 Relay 2 Power Transformer A B 230V 21V COM Measure the resistance Ohm meter scale R x 100 Check for continuity of relay 2 with an ohm meter Remove w...

Страница 21: ...static charge built up in your body Micom model only CONDITION Microwave oven does not work Inserting many plug into one plug outlet and using them at the same time blown fuse or breaker Microwave oven plug is not inserted tightly Output power is too low Low AC input voltage Food temperature is too low Using metallic ware and allowing it to touch the oven wall Sparks occur Inconsistent intensity o...

Страница 22: ...ing cooking cycle 11 Display time of day does not reappear when cooking is finished 12 Beep sound is not heard when correct key is touched 5 12 TROUBLE 1 The following visual conditions indicate a probable defective control circuit CONDITION CHECK RESULT CAUSE REMEDY Everything works as specified Continuity No continuity Still have trouble Defective key membrane assembly Defective PCB assembly Loo...

Страница 23: ...e blows Continuity No continuity Continuity Shorted contact at the primary switch Replace fuse primary monitor switches and RELAY RY2 of P C B Assembly No continuity Normal Defective high voltage capacitor Replace high voltage capacitor Fuse blows again Defective high volt age transformer Replace high volt age transformer Malfunction of the monitor switch Replace fuse primary monitor switches and ...

Страница 24: ...h with door closed Check fan motor Check oven lamp Abnormal Abnormal Normal Defective fan motor Defective oven lamp Replace fan motor Replace oven lamp Loose connection Connect them tightly CONDITION CHECK RESULT CAUSE REMEDY Output is low Lower than 90 of rating voltage Normal Normal Abnormal Abnormal Measure the output power Disconnect the wire leads from relay 2 and check on and off time with m...

Страница 25: ...lay2 Operate the unit Abnormal Normal Defective circuit protector Replace circuit protector Check circuit protector Normal Normal Abnormal Defective high voltage capacitor Replace high voltage capacitor Check high vol tage capacitor Abnormal Defective high voltage transformer Replace high voltage transformer Check high vol tage transformer Abnormal Defective high voltage diode Replace high voltage...

Страница 26: ...mbly NOTE Make sure the wire leads correct position When Removing the wire leads from the parts be sure to grasp the connector not the wires When removing the magnetron be sure to install the magnetron gasket in the correct position and in good condition TROUBLE 5 No microwave oscillation even though oven lamp and fan motor run Display operates properly CONDITION CHECK RESULT CAUSE REMEDY ...

Страница 27: ...DOOR PARTS LATCH BOARD PARTS CONTROL PANEL PARTS INTERIOR PARTS BASE PLATE PARTS OVEN CAVITY PARTS 6 1 EXPLODED VIEW INTRODUCTION EV ...

Страница 28: ...6 2 13213A 13552A 15006A 13581A 13536A 14026A 14970A 13720D 14890A DOOR PARTS EV ...

Страница 29: ...6 3 23572A 24781M WTP018 268711 24510L 250201 24970A 23506A CONTROL PANEL PARTS EV ...

Страница 30: ...6 4 WTT011 WTT010 WTP013 WTT021 33390G 34370T 35889A 36549S 33052M 33112U OVEN CAVITY PARTS EV ...

Страница 31: ...6 5 466001 466003 466001 43500A WSZ085 LATCH BOARD PARTS EV ...

Страница 32: ... 6 56851D 56549F 54974S 56411A 568771 56201A 50FZZA 55900A 50CZZH WEB001 WEB001 WTT028 WSZ062 WSZ062 WTT037 WTT028 54810C 56930V 56324A WSZ002 34930W WSZ002 56912B 55262A 948501 56201B INTERIOR PARTS EV ...

Страница 33: ...6 7 56170D 63303A WSZ002 WTT021 WTT030 647781 63302A BASE PLATE PARTS EV ...

Страница 34: ......

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