Sharp AF-S120FX

PREFACE
SAFETY PRECAUTIONS ...................................i
INSULATION RESISTANCE TEST.....................i
CHAPTER 1. PRODUCT SPECIFICATION
[1] SPECIFICATION............................................ 1-1
[2] WIRING DIAGRAM...................................... 1-10
[3] EXTERNAL DIMENSION............................. 1-10
CHAPTER 2. MICROCOMPUTER CONTROL SYS-
TEM
[1] ELECTRONIC CONTROL CIRCUIT DIA-
GRAM ............................................................ 2-1
[2] PRINTED WIRING BOARD ........................... 2-2
CHAPTER 3. TROUBLESHOOTING GUIDE
[1] REFRIGERATION CYCLE DIAGRAM...........3-1
[2] TROUBLESHOOTING GUIDE......................3-1
REPLACEMENT PARTS LIST
SERVICE MANUAL
AFS120FX
SHARP CORPORATION
CONTENTS
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Room Air Conditioner
AF-S60FX
AF-R80FX
AF-S80FX
AF-S85FX
AF-R100FX
AF-S100FX
AF-R120FX
AF-S120FX
AF-S125FX
MODELS
In the interests of user-safety (Required by safety regulations in some countries) the set should
be restored to its original condition and only parts identical to those specified should be used.

Sharp AF-S120FX Specifications

General

Brand	Sharp
Model	AF-S120FX
Category	Air Conditioner
Language	English

Summary

Preface

Safety Precautions

Essential safety guidelines for servicing the unit.

Insulation Resistance Test

Procedure to ensure electrical safety after servicing.

Chapter 1. Product Specification

[1] Specification

Detailed technical specifications for various models.

[2] Wiring Diagram

Electrical schematic showing component connections.

[3] External Dimension

Physical dimensions of the unit for installation.

Chapter 2. Microcomputer Control System

[1] Electronic Control Circuit Diagram

Detailed circuit diagram for electronic controls.

[2] Printed Wiring Board

Layout of the main and display printed circuit boards.

Chapter 3. Troubleshooting Guide

[1] Refrigeration Cycle Diagram

Visual representation of the cooling cycle.

[2] Troubleshooting Guide

Guide to diagnose and resolve common operational issues.

Replacement Parts List

[1] Chassis Lower shutter frame (Small)

List of chassis and shutter parts for small models.

[2] Electric control system Cabinet and shutter Front panel assy (Small)

Parts for electrical system, cabinet, and front panel for small models.

[3] Airflow system Refrigerant system (Small)

Parts for airflow and refrigerant systems for small models.

[4] Accessories (Small)

List of accessories for small models.

[5] Others (Small)

Other miscellaneous parts for small models.

[6] Chassis Lower shutter frame (Medium)

List of chassis and shutter parts for medium models.

[7] Electric control system Cabinet and shutter Front panel assy (Medium)

Parts for electrical system, cabinet, and front panel for medium models.

[8] Airflow system Refrigerant system (Medium)

Parts for airflow and refrigerant systems for medium models.

[9] Accessories (Medium)

List of accessories for medium models.

[10] Others (Medium)

Other miscellaneous parts for medium models.

Index