LG MC-806CLR Скачать руководство пользователя страница 4

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SPECIFICATIONS

1-1

ITEM

DESCRIPTION

Power Requirement

230V AC50Hz

Single phase, 3 wire grounded

Microwave 1350W

Grill

1250W

Convection

1350W (MAX. 2550W)

Combination

2650W

Power Output

850W full microwave power(IEC705)

Microwave Frequency

2,450MHz

Magnetron

2M214 - 39F, 2M254J, 2M218J

Timer

99min. 50sec.

Outside Dimensions

530(W) X 322 X 500mm

Cavity Dimensions

348(W) X 232 X 374mm

Net Weight

23.0kg

Shipping weight

25.5kg

Control Complement

Microwave Power for Variable Cooking

Power level

HIGH...............................................Full power throughout the cooking time(100%)

MED-HIGH .....................................approx. 80% of Full power

MEDIUM .........................................approx. 60% of Full power

DEFROST ......................................approx. 40% of Full power

LOW ...............................................approx. 20% of Full power

• Convection - Max. 250°C

• Grill

• Combination

Name plate Location

Accessories

Owner's manual

Glass tray

Rotating ring

Convection rack

Grill rack

Metal tray

Rotisserie-Bar

Rotisserie-Handle

This microwave oven is designed for household use only.

It is not recommended for commercial purpose.

Back Side

Содержание MC-806CLR

Страница 1: ...MICROWAVE OVEN SERVICE MANUAL MODEL MC 806CLR CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ...

Страница 2: ...or 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 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 misadjus...

Страница 3: ...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 8 COMPONENT TEST PROCEDURE 5 9 TROUBLE SHOOTING GUIDE 5 14 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 SCHEMATIC DIAGRAM OF P C B 8 1 PRINTED CIRCUIT BOARD 8 2 PCB PARTS LIST ...

Страница 4: ... Net Weight 23 0kg Shipping weight 25 5kg Control Complement Microwave Power for Variable Cooking Power level HIGH Full power throughout the cooking time 100 MED HIGH approx 80 of Full power MEDIUM approx 60 of Full power DEFROST approx 40 of Full power LOW approx 20 of Full power Convection Max 250 C Grill Combination Name plate Location Accessories Owner s manual Glass tray Rotating ring Convect...

Страница 5: ... 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 appliance Though it is free from danger in ordinary use extreme care should be taken during re...

Страница 6: ...utlet 9 Do not touch the front glass during or after cooking of the Grill Convection and Combination mode This glass is very hot during heater operating 10 Do not operate oven at microwave and combination mode with the Convection rack or Grill rack placed in the cavity when the oven is empty Earthing Instructions This microwave oven is designed to be used in a fully earthed condition It is imperat...

Страница 7: ...ng 10 AUTO WEIGHT DEFROST To select auto weight defrost 11 WEIGHT To set weight of food auto weight defrost 12 LESS MORE To select convection temperature and change auto cook time and auto reheat time 13 STOP CLEAR CHILD LOCK Stops the oven and clear all entries except the time of day 14 START QUICK START To quickly set the cooking time directly Control panel Glass turntable Rotating ring Shaft Me...

Страница 8: ...wer level Desired cooking time Desired cooking time Start Stop Clear Stop Clear Touch and HOLD Stop Clear Stop Clear Touch and HOLD Stop Clear Start Stop Clear More Less Programme desired auto cook Stop Clear Desired defrost category Desired cooking weight Start Stop Clear Desired auto roast category Desired cooking weight Start Stop Clear Desired auto cook category Desired cooking weight Start De...

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

Страница 10: ...nsformer which is increased by the action of the diode and charging of the high voltage capacitor The negative D C voltage is then applied to the filament of the magnetron WHEN THE DOOR IS OPEN DURING COOKING Both primary switch and secondary switch open to cut off the primary winding voltage to the high voltage transformer to stop microwave oscillation Turntable and fan motor stop As the door is ...

Страница 11: ...ts in customer s home EQUIPMENT Microwave Survey Meter 600cc glass beaker Glass thermometer 100 C NECESSARY MEASURING INSTRUMENTS TESTER VOLTS DC AC Multmeter Microwave survey meter Holaday H1 1500 Hi 1501 Narda 8100 8200 Inch scale 600 cc non conductive material beaker glass or plastic inside diameter approx 8 5cm 31 2 in Cylindrical and made of borosilicate glass vessel max thickness 3mm outside...

Страница 12: ... 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 th...

Страница 13: ...ear and side section The out case must be moved backward to the lifted off B POWER SUPPLY CORD 1 Remove the out case 2 Disconnect two terminals from the noise filter assy and remove one screw of the earth terminal CAUTION DISCHARGE HIGH VOLTAGE CAPACITOR BEFORE SERVICING refer to page 5 C REMOVING CONTROL PANEL ASSEMBLY AND PCB ASSEMBLY 1 Disconnect the leadwire from the PCB SUB ASM 2 Remove the s...

Страница 14: ...lly 2 After replacing the door check for microwave energy leakage with a survey meter Microwave energy must be below the limit of 4 mW cm2 with a 275 ml water load 3 When mounting the door assembly to the oven assembly be sure to adjust the door assembly parallel to the chassis Also adjust so the door has no play between the inner door surface and oven frame assembly If the door assembly is not mo...

Страница 15: ...all the magnetron gasket in the correct position and be sure that the gasket is in good condition 3 After replacing the magnetron check for microwave energy leakage with a survey meter around the magnetron Microwave energy must be below the limit of 5mW cm2 With a 275 ml water load Make sure that gasket is rigidly attached to the magnetron To prevent microwave leakage tighten the mounting screws p...

Страница 16: ...ide suction and lift it up G OVEN LAMP REMOVAL 1 Disconnect the wire leads from oven lamp 2 Remove one screw securing the Air Duct to the magnetron 3 Push hook to Right and Left of Air Duct with Drive 4 Lift the oven Lamp up H HIGH VOLTAGE TRANSFORMER REMOVAL 1 Disconnect the wire leads from the transformer to the magnetron C Protector ASS Y assembly 2 Remove four screws securing the H V transform...

Страница 17: ...ate microwave activity when the door is opened during cooking and thus to prevent the danger resulting from the microwave leakage 2 MOUNTING OF THE PRIMARY MONITOR AND SECONDARY SWITCH TO THE LATCH BOARD 3 INSTALLATION 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 the oven door will not have any pl...

Страница 18: ...the switch The meter should indicate a open condition When the door is 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 multimeter leads to the common COM and normally close NC terminal...

Страница 19: ...NENTS TEST PROCEDURE RESULTS HIGH VOLTAGE TRANSFORMER Wire leads removed 1 Measure the resistance Multi meter scale R X 1 Primary winding Approx 1 4 Ω Secondary winding Approx 90 Ω Filament winding Less than 0 1 Ω 2 Measure the resistance Multi meter scale R X 1000 Primary winding to ground Normal Filament winding to ground Normal MAGNETRON 1 Measure the resistance Wire leads removed Multi meter s...

Страница 20: ...orrect position and be sure that the gasket is in good condition Measure the resistance Multi meter scale R x 1000 Terminal to termonal Measure the resistance Multi meter scale R x 1000 Terminal to case Measure the continuity Forward Multi meter scale R x 10000 Measure the continuity Reverse Multi meter scale R x 10000 Normal Abnormal Continuity Normal Continuity Abnormal HIGH VOLTAGE DIODE NOTE S...

Страница 21: ...500V 100M Ω insulation resistance meter Measure the resistance Multi meter scale R x 1 Check for continuity of the switch with a Multi meter NOTE If the fuse is blown check the primary the secondary and the monitor switches H V D and H V C before replacing the fuse If the fuse is blown by improper switch operation replace the defective switch and the fuse at the same time Replace just the fuse if ...

Страница 22: ...WIRE COLOR Normal COM 230V Approx 150 Ω COM 24V Approx 20 Ω Abnormal Infinite or several ohm Normal Approx 200 300 Ω Abnormal Infinite or several ohm Normal Approx 134 Ω Abnormal Infinite or several ohm DC 24V 24V BN COM YL 230V BL AC 28V DC 24V INPUT OUT PUT BN YL Measure the resistance Multi meter scale R x 1 Measure the resistance Multi meter scale R x 1 ...

Страница 23: ... on key board The contacts assignment of the respective pads on the key board is as shown left figures Cooking Start OFF CN2 1 3 5 7 Relay 3 Relay 4 Relay 3 Relay 4 Relay 2 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 Membrane Panel P C B Cooking Start OFF NOTE A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON MAKE SURE THE WIRE LEADS ARE CORRECT ...

Страница 24: ...eck the primary the secondary and the monitor switches before replacing the fuse CONDITION The fuse blows when power cord is plugged into wall receptacle Shorted lead wise assy or wire hardness Defective monitor switch or out of adjustment Test procedure switches 0 does not appear in displasy window when power cord is first plugged into wall outlet Microwave oven plug is not inserted tightly No po...

Страница 25: ...an touch keys Defective tact switch key of P C B Loose connection Connect them tightly Defective secondary switch or out of adjustment Defective tact switch key of P C B Test procedure tact switch key of P C B Test procedure secondary switch Test procedure tact switch key of P C B CAUSE TEST PROCEDURE OR CORRECTION Incorrect touch key Touch key again after closing Loose connection Test tact switch...

Страница 26: ...an motor Food temperature is too low This may not be a defect It is possible that the food should be cooked for a longer period Uneven cooking Inconsistent intensity of microwave by their characteristics Food does not turn during cook cycle Food or cookware extending oven edges of turntable prevents turning rearrange food 1 Wrap the thinner part with aluminum foil 2 Use plastic wrap or with a lid ...

Страница 27: ...n at adequate line voltage Test procedure magnetron Open or loose wiring to above components Blown fuse Check and repair wiring Check fuse Spark occurring Using metallic ware and allowing it to touch the oven wall Ceramic ware trimmed in gold or silver powder is used Do not use any type of cook ware with metallic trimming Do not use metallic ware for cooking except where noted in the cookbook Gril...

Страница 28: ...ive thermistor Test procedure thermistor Check and repair C Motor wire ass y COM YL 24V BN 230V BL Check and replace C Motor Test procedure relay 4 8 of P C B Test procedure relay 3 4 or relay 8 of P C B Test procedure convection heater Test procedure grill heater Check the rotating of circulation fan Test or replace thermistor Test or Replace Solenoid Check Diode 4pcs or Replace Rectifire ASM Che...

Страница 29: ...TEST PROCEDURE OR CORRECTION Open or loose wire connection to P C B Check and repair wiring Defective relay 3 of P C B Defective grill heater element Test procedure grill heater Test procedure relay 3 of P C B TROUBLE 5 Oven does not operating Grill cooking NOTE MAKE SURE THE WIRE LEADS CORRECT POSITION WHEN REMOVING THE WIRE LEADS FROM THE PARTS BE SURE TO GRASP THE CONNECTOR AND NOT THE WIRES WH...

Страница 30: ...INTRODUCTION 6 1 EXPLODED VIEW DOOR PARTS CONTROL PANEL PARTS LATCH BOARD PARTS BASE PARTS INTERIOR PARTS OVEN CAVITY PARTS ...

Страница 31: ...DOOR PARTS 6 2 NSP 13350F 13581A 14970A 14026A 13552A 15006A 13213A 14890A ...

Страница 32: ...CONTROL PANEL PARTS 6 3 WTP004 268711 268712 23790D NSP 24781S 250203 250201 250202 24970A 24510L 23550F ...

Страница 33: ...021 54974A 33112U WTT021 WTT010 35301A 348101 35300A 348102 33550H WMT002 WTP013 WSZ092 36549R 349602 343501 33052M 34930R 34370T 349601 34271A 35889A 33390G 33390M 35026G 35026C 33650T 36549S WSZ092 WTP013 34036W 34370Z 34810R ...

Страница 34: ...LATCH BOARD PARTS 6 5 WSZ085 466002 43501A 466003 466001 43500A ...

Страница 35: ...N 36549C 50FZZA WSZ002 56201A WTT037 56549F 56930M 56912B WMP002 54810U 56851D 56851C 55262A 56021A 54072A 568771 948504 56324A 54370D 948503 56201B 568772 54790A WWP006 54932A 55900A 50CZZH WTT028 WSZ002 WSZ002 54810A WTP002 WTT028 54810C 54974S WWP008 WWS005 WNH003 948502 WTT021 WNH002 WTT021 WMT002 WSZ062 948501 ...

Страница 36: ...BASE PLATE PARTS 6 7 WSZ062 WSZ002 WTT030 948505 948502 63302A 56170D 647781 63303A 948506 ...

Страница 37: ...SCHEMATIC DIAGRAM OF P C B 8 1 ...

Страница 38: ...PRINTED CIRCUIT BOARD 8 2 ...

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