LG Electronics LMV1625W, LMV1625B service manual HIGH-VOLTAGE Diode

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COMPONENTS	TEST PROCEDURES	RESULTS
	Measure the resistance:	Normal reading:
	(1) Terminal to terminal	Normal reading:
	(1) Terminal to terminal	Momentarily indicates several ohms,
		Momentarily indicates several ohms,
		and then gradually returns to infinite
		ohms.
	Ohm-	Abnormal reading:
	Ohm-	Indicates continuity or infinite ohms
	meter	Indicates continuity or infinite ohms
	meter	from the beginning.
		from the beginning.

HIGH-VOLTAGE	Figure 25-a
CAPACITOR
	(2) Terminal to case	Normal readings:
		Infinite.
		Abnormal reading:
	Ohm-	Indicates continuity.
	meter

Figure 25-b
Measure the continuity:	Normal readings:
(1) Forward	Infinite.
	Abnormal reading:
	continuity.
Ohm-
meter

HIGH-VOLTAGE	Figure 26-a
HIGH-VOLTAGE
DIODE
(1) Reverse	Normal readings:
	continuity.
	Abnormal reading:
Ohm-	Infinite.
meter

Figure 26-b

7-16

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Contents Microwave Oven Page Table of Contents Specifications Microwave Radiation Installations Precautions on InstallationGrounding Instructions Control Panel Operating InstructionsControl Panel Instructions Schematic Diagram Overall Circuit DiagramMatrix Circuit for Touch KEY Board Trial Operation General Information for ServiceGeneral Precautions in USE Features and Specifications FeaturesService Information Precautions and Repair Service TipsPreliminary Measuring Microwave Energy Leakage Microwave Leakage TestRecord Keeping and Notification After Measurement Power Output MeasurementMeasurement with the Outer Case Removed Measurement with a Fully Assembled OvenImportant 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 the Ventilation Fanassy Assembling DoorRemoving the Turntable Motor Interlock Mechanism Interlock System Test the Latch and Switch Sequence Interlock Continuity Test Components Test Procedure ResultsTest Procedures Test and Checkout PROCEDURES, and Trouble ShootingHIGH-VOLTAGE Diode Top For detail matrix circuit of each model Refer to Power Level Checkout ProceduresCheckout Procedures for Relay Problem a Checkout Procedures for Circuit Board Trouble Shooting Thermostat Page Fuse Exploded View Controller Parts Oven Cavity Parts Latch Board Parts Interior Partsi Interior Parts Installation Parts Schematic Printed Circuit Board May