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LG GR-M562Y*X/M602Y*X User Manual

LG GR-M562Y*X/M602Y*X
46 pages
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CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY
PRECAUTIONS" IN THIS MANUAL.
MODEL: GR-M562Y*X/M602Y*X
GR-M562Y*Y/M602Y*Y
GR-B562Y*Y/B602Y*Y
GR-B562Y*Q/B602Y*Q
GR-B562Y*C/B602Y*C
REFRIGERATOR
SERVICE MANUAL
http://biz.lgservice.com
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LG GR-M562Y*X/M602Y*X Specifications

General IconGeneral
Energy Efficiency ClassA++
RefrigerantR600a
Smart DiagnosisYes
Door CoolingYes
Multi Air FlowYes
Water DispenserYes
Defrost SystemFrost Free
DisplayLED
Dimensions (W x H x D)730 mm
ColorStainless Steel

Summary

Safety Precautions

Servicing Precautions

Air Recharging in Compressor

Procedure for testing and refilling the refrigeration system with R-134a.

Specifications

Parts Identification

Feature Chart

Illustrates and labels various components of the refrigerator.

Disassembly

Door Disassembly

Instructions for removing the freezer and refrigerator doors.

Door Switch Removal

Steps to remove and disconnect the door switch.

Fan and Fan Motor Disassembly

Procedure for removing the fan and motor assembly.

Defrost Control Assembly Removal

Steps to remove and replace the defrost control assembly.

Lamp Replacement

Instructions for replacing freezer and refrigerator lamps.

Control Box-R Removal

Procedure for removing the control box.

Adjustment Procedures

Compressor Role and Notes

Explains the compressor's function, composition, and usage notes.

PTC-Starter Function and Usage

Details the PTC-starter's composition, role, and usage precautions.

Over Load Protector (OLP) Definition and Role

Defines the OLP, its function, and usage notes.

Circuit Diagrams

Troubleshooting Guide

Compressor and Electric Component Troubleshooting

Troubleshooting flowcharts for compressor and related electrical parts.

PTC and OLP Troubleshooting

Troubleshooting flowcharts for PTC and OLP components.

Other Electric Components Troubleshooting

Troubleshooting flowcharts for various other electric components.

Service Diagnosis Chart

A chart correlating complaints with points to check and remedies.

Refrigerating Cycle Troubleshooting

Refrigerating Cycle Troubleshooting Chart

Table detailing causes, states, and remarks for refrigerating cycle issues.

Leakage Detection Procedure

Flowchart for detecting refrigerant leakage.

Refrigerating Cycle General Control

Details specifications for welding rod, flux, drier, vacuum, and gas.

MICOM Function and Circuit Description

MICOM Functionality

Describes basic operation and temp control modes for different models.

Super Cool Mode Operation

Explains the Super Cool feature, its activation, and duration.

Freezer Compartment Variable Speed Fan Control

Details the fan speed control logic in the freezer.

Open Door Alarm System

Describes the alarm function triggered by doors left open.

Buzzer Sound Operation

Describes the buzzer sound triggered by button presses.

Defrosting Operation

Explains when and how the defrosting cycle is performed.

Sequential Operation of Electric Components

Outlines the sequence of component activation during power-on or test mode.

Error Diagnostic Mode (Models GR-M562Y*X/M602Y*X etc.)

Error Diagnostic Mode (Model GR-B562Y*C/B602Y*C)

Test Mode Procedures

PCB Function Overview

Power Circuit Description

Details the noise attenuation and SMPS parts of the power circuit.

Oscillation Circuit Function

Explains the circuit generating the base clock for the MICOM.

Reset Circuit Function

Describes the circuit for initializing MICOM functions upon power-up.

Load/Buzzer Drive & Open Door Detection Circuit

Details the circuits for driving loads, buzzers, and detecting open doors.

Buzzer Drive Condition Check

Explains buzzer drive conditions and alarm signals.

Open Door Detection Circuit Check

Details the circuit check for open door detection.

Temperature Sensor Circuit

Describes the circuit for detecting ambient, freezer, and refrigerator temperatures.

Switch Input Circuit

Input circuit for detecting test switch signals.

Temperature Compensation Circuits

Circuits for less cooling and overcooling compensation.

Key Button Input & Display Light Circuit

Circuit for detecting key presses and turning on display LEDs.

Sensor Resistance Specifications

Troubleshooting Guide

Troubleshooting Guide (Part 1)

Troubleshooting chart for power source and cooling issues.

Troubleshooting Guide (Part 2)

Troubleshooting chart for refrigerator temperature and defrosting issues.

Main PCB Assembly and Parts List

Main PCB Assembly Diagram

Diagram showing the layout of components on the main PCB.

Replacement Parts List (Main PCB)

Detailed list of replaceable parts for the main PCB.

Display PCB Assembly and Parts List

Details of the display PCB assembly and its components.

Display (I-MICOM) PCB Assembly and Parts List

Lists the components for the display PCB with I-MICOM.

V-LED Display and Part List

Lists components related to the V-LED display.

PWB Diagram

Exploded View and Parts List

Exploded View of Refrigerator

Diagram showing the exploded view of the refrigerator.

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