LG Electronics LMV1825SBQ, MV1825SW service manual Oven Cavity

Page 39

OVEN CAVITY

WTT021

WTT027	34960A
WTT029

33530A

34930R

330342

35026G

WTT022

535501

35230A

WTT029

WTT027

34810Q

36912C

33550P

WTT028

33112U

WTT022

63303A

368771

56804A

63302A

330341

WTT022

8-3

Image 39

Contents Microwave Oven Safety Precautions in this ManualPage Table of Contents Specifications Microwave Radiation Grounding Instructions InstallationControl Panel Operating InstructionsControl Panel Instructions Schematic Diagram Overall Circuit DiagramMatrix Circuit for Touch KEY Board General Precautions in USE Features and Specifications FeaturesTrial Operation Preliminary Precautions and Repair Service TipsEquipment Microwave Leakage TestMeasurement with the Outer Case Removed Power Output MeasurementImportant Notes Disassembly InstructionsHOW to Insert the F.P.C. Connector HOW to Remove the F.P.C. ConnectorRemoving the OUT CASEFigure Removing the Door Interlock Switches Figures 9,10 Removing Magnetron Removing Door Figure Removing Stirrer FANAssembling Door Removing the Ventilation MotorReplacing the Humidity Sensor Removing the Turntable Motor Interlock Mechanism Interlock SystemTest the Latch and Switch Sequence Interlock Continuity Test Components Test Procedure ResultsTest Procedures Test and Checkout PROCEDURES, and Trouble ShootingHIGH-VOLTAGE Diode FPC Connector Power Level Checkout ProceduresCheckout Procedures for Relay Problem a Checkout Procedures for Circuit Board Trouble Shooting Circuit board Poor Check the contact of relay 2see Normal Operation Circuit board Fuse Exploded View Control Panel Oven Cavity Latch Board Interior 50FZZA Installation Schematic Diagram of P.C.B Printed Circuit Board May