MICROWAVE OVEN
SERVICE MANUAL
MODEL: MS-2022W
CAUTION
BEFORE SERVICING THE UNIT, READ THESAFETY PRECAUTIONS IN THIS MANUAL.
http://getMANUAL.com
Page 1: ...MICROWAVE OVEN SERVICE MANUAL MODEL MS 2022W CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL http getMANUAL com ...
Page 2: ... 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 the interlo...
Page 3: ...ENCE 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 12 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 CONTENTS http getMANUAL com ...
Page 4: ...mplement Nameplate Location Accessories DESCRIPTION MS 2022W 230 Volts AC 50 Hz 1 200 Watts Single phase 3 wire grounded 800 Watts full microwave power IEC 60705 2 450 MHz 2M214 39 2M218J 2M254J 0 60 min 485 W x 280 H x 350 D mm 312 W x 198 H x 316 D mm 12 5 kg approx 14 kg approx Microwave Power for Variable Cooking Power level Max 600W 360W Defrost 90W Owner s manual cooking guide Glass turntabl...
Page 5: ... 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 from danger i...
Page 6: ...ce 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 wires in the ...
Page 7: ...IONS Oven Front Plate Window Door Screen Door Seal Control Panel Safety Door Lock System Turntable Rotating Ring 1 POWER CONTROL KNOB Used in selected the desired power level for cooking 2 TIMER KNOB Used to set the cooking time http getMANUAL com ...
Page 8: ...s At the end of cooking time you will a single ring sound and the lamp is turn off NOTE Each number represents minutes To ensure accurate timing it is advisable to turn the timer knob slightly passed the desired cooking time and then back to the proposed setting Press the door opener to check the cooking condition during oven operation Opening the door during oven operation automatically turns off...
Page 9: ...SCHEMATIC DIAGRAM 4 3 http getMANUAL com ...
Page 10: ... the upper plate Timer starts rotating 3 2 volts AC is generated from the filament winding of the high voltage transformer This 3 2 volts is applied to the magnetron to heat the magnetron filament through two noise preventing choke coils A high voltage of approximately 2100 volts AC is generated in the secondary of the high voltage transformer which is increased by the action of the diode and char...
