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LG GR-A207NIS User Manual

LG GR-A207NIS
80 pages
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CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
REFRIGERATOR
SERVICE MANUAL
COLOR: TITANIUM
http://biz.lgservice.com
Ref. No.
GR-A207NIS
MODEL : GR-A207CTBA

Questions and Answers:

LG GR-A207NIS Specifications

General IconGeneral
BrandLG
ModelGR-A207NIS
CategoryRefrigerator
LanguageEnglish

Summary

WARNINGS AND PRECAUTIONS FOR SAFETY

SPECIFICATIONS

PARTS IDENTIFICATION

HOW TO INSTALL REFRIGERATOR

How to Adjust Door Height of Refrigerator

Adjusts the height of the freezer and refrigerator doors for proper alignment.

MICOM FUNCTION

Monitor Panel

Displays the status and controls for the refrigerator's temperature and functions.

Description of Function

Explains various functions like temperature selection, lock, and super freezer modes.

Failure Diagnosis Function

Facilitates service by displaying error codes for specific component failures.

Test Function

Allows checking of PCB and product functions for failure diagnosis.

EXPLATION FOR MICOM CIRCUIT

Power circuit

Details the SMPS power supply circuit, including rectifying and switching components.

Oscillation circuit

Explains the circuit generating basic timing for synchronization and calculations.

Reset circuit

Describes the circuit that initializes the MICOM and starts functions from an initial status.

Temperature sensing circuit

Covers circuits for adjusting temperature and sensing for various components.

Stepping motor operation circuit

Details the circuit driving the stepping motor for functions like damper control.

Fan motor driving circuit

Explains the circuit controlling the fan motor speed and operation.

Compensation circuit for weak-cold, over-cold at freezing room

Details circuits for compensating temperature issues in the freezing room.

Communication circuit and connection L/Wire between main PCB and display PCB

Explains the communication between the main and display PCBs for the LCD.

Sensor resistance characteristics table

PWB parts diagram and list

Parts list

Provides a detailed list of components on the Printed Wiring Board (PWB).

DISPLAY ASSY part diagram

Shows the assembly and parts of the display unit.

DISPLAY circuit diagram

Illustrates the electronic schematic for the display unit.

PWB circuit diagram

CIRCUIT

CIRCUIT DIAGRAM

Provides a schematic of the refrigerator's electrical connections and components.

TROUBLE DIAGNOSIS

Trouble Shooting

Guides on identifying and resolving common refrigerator problems and their causes.

Cooling Cycle Heavy Repair

Outlines standards and procedures for heavy repair of the cooling cycle.

Standard Regulations For Heavy Repair

Provides essential safety precautions and guidelines for heavy repair work.

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