LG MS-283TD Service Manual Download Page 8

Page: 8 / 10

OPERATING SEQUENCE

The following is a description of component functions
during oven operation.

1. SETTING THE CLOCK

ex) To set 4:35, Press 10 min four times.

Press 1 min three times.
Press 10 sec five times.

NOTE: You can set 12 hour clock or 24 hour clock

optionally.

2. CANCEL FUNCTION

Touch the pad whenever you need to

cancel an entry or a function currently in use.

The display will either return to the last item entered

or to the clock.

3. QUICK START

4. MICROWAVE COOKING

5. MULTI-STAGE MICROWAVE

COOKING

6. AUTO WEIGHT DEFROST COOKING

7. CHILD LOCK

This oven has a CHILD LOCK feature

• TO SET CHILD LOCK

• Touch the pad

• Touch STOP pad

L appear in

the display.

•TO CANCEL CHILD LOCK

• Touch the pad

• touch STOP pad L disappears.

4-2

Stop

Set

clock

Set the

correct time

Stop

Start

STOP

STAGE 1

Set

clock

Stop

Desired

defrost

Summary of Contents for MS-283TD

Page 1: ...MICROWAVE OVEN SERVICE MANUAL MODEL MS 283TD CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ...

Page 2: ...nd 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 misadjusted components in t...

Page 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 12 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 SCHEMATIC DIAGRAM OF P C B 8 1 PRINTED CIRCUIT BOARD 8 2 P C B PARTS LIST 9 1 CONTENTS ...

Page 4: ...ts AC 50 Hz 1 300 Watts 6 0 A Single phase 3 wire grounded 900 Watts full microwave power IEC705 2 450 MHz 2M214 39 2M218J 2M254J 0 99 min 90 sec 530 W x 322 H x 390 D mm 348 W x 232 H x 373 D mm 17 kg approx 19 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 F...

Page 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...

Page 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...

Page 7: ...uto weight defrost programmed with weight pad 4 STOP CANCEL Used to stop oven and clear all entries except time of day 5 POWER Used to select the desired power level for cooking 6 SET CLOCK Used to set the time of day 7 START One tap allows oven to begin functioning 8 COOK TIME Used to cook food for a desired time 9 PLAY To play the message recorded 10 DOOR OPEN BUTTON Press to open the door Openi...

Page 8: ...t item entered or to the clock 3 QUICK START 4 MICROWAVE COOKING 5 MULTI STAGE MICROWAVE COOKING 6 AUTO WEIGHT DEFROST COOKING 7 CHILD LOCK This oven has a CHILD LOCK feature TO SET CHILD LOCK Touch the pad Touch STOP pad L appear in the display TO CANCEL CHILD LOCK Touch the pad touch STOP pad L disappears 4 2 Stop Set clock Set the correct time Stop Start STOP STAGE 1 Set clock Stop Stop Desired...

Page 9: ...M MICROWAVE RADIATION FIRE ELECTRICAL SHOCK AND HAZARDS WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURER S SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SHADED AREAS OF THE SCHEMATIC DIAGRAM NOTICE SINCE THIS IS BASIC SCHEMATIC DIAGRAM THE VALUES OF COMPONENTS AND SOME PARTIAL CONNECTIONS ARE SUBJECT TO CHANGE FOR IMPROVEMENT ...

Page 10: ... 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 the average o...

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