Sharp SJ-A20S-SL

SERVICE MANUAL
SJ-A20S/B21S/A24S/B25S/A28A/B27S/A31S/A34S-SL
No.S9902SJ22FTVTT
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CONTENTS
Refrigerator-freezer
MODELS
SJ-A20S-SL
SJ-B21S-SL
SJ-A24S-SL
SJ-B25S-SL
SJ-A28S-SL
SJ-B27S-SL
SJ-A31S-SL
SJ-A34S-SL
DESTINATION T
Refer to "HFC-134a COOLING UNIT" Service Manual for handling this refrigerant.
R
efrigerant; HFC-134a
SJ-A28S-SL
SJ-B27S-SL
CHAPTER 1. SPECIFICATION
CHAPTER 2. DESIGNATION OF VARIOUS PARTS
[1] EXTERNAL DESCRIPTION........................... 2-1
[2] CONSTRUCTIONS........................................ 2-2
CHAPTER 3. DIMENTIONS
[1] OUTER DIMENTIONS AND
CLEARANCE ................................................. 3-1
[2] INNER DIMENTIONS .................................... 3-4
CHAPTER 4. LIST OF ELECTRICAL PARTS
CHAPTER 5. WIRING DIAGRAM
[1] WIRING DIAGRAM ........................................ 5-1
[2] ELECTRIC ACCESSORIES LAYOUT ........... 5-2
CHAPTER 6. FAILURE DIAGNOSIS
[1] OUTLINE OF CONTROL ............................... 6-1
[3] RE-SETTING OF MICROCOMPUTER AT
POWER FAILUR
E.......................................... 6-2
[4] D
IAGNOSIS METHOD OF FAILURE ............6-2
[5] CONVERSION TABLE ..................................6-3
[6] CIRCUIT DIAGRAM OF MAIN PWB .............6-4
CHAPTER 7. FUNCTIONS
[1] ADJUSTABLE TEMPERATURE
CONTROL .....................................................7-1
CHAPTER 8. ASSEMBLI NG PROCEDURES OF
MAIN PARTS AND CAUTIONS
[1] F-LOUVER ASS'Y (SJ-A20S/B21S/A24S/
B25S/A28S/B27S)
..........................................8-1
[3] R CONTROL COV. ASS'Y.............................8-7
[4] HOW TO REPLACE THE LAMP ...................8-9
[5] DEFROST HEATER ......................................8-10
CHAPTER 9. COOLING UNIT
[1] COOLING UNIT.............................................9-1
[2] LOCATION ............................
........................9-2
Parts Guide
[
2] F-LOUVER ASS'Y (SJ-A31S/A34S)...............8-4
[1] SJ-A20S/B21S/A24S/B25S/A28S/B27S........ 2-1
[2] SJ-A31S/A34S .......................................... 2-2
[3] PRECAUTION FOR USING LEAD-FREE
SOLDER........................................................5-3
[2] CHECK MODE OF DEFROST HEATER
(Forced Defrosting) ........................................ 6-1
SJ-F230G
SJ-F230G
SJ-F230G
Ag

Sharp SJ-A20S-SL Specifications

General

Brand	Sharp
Model	SJ-A20S-SL
Category	Refrigerator
Language	English

Summary

CHAPTER 4. LIST OF ELECTRICAL PARTS

CHAPTER 5. WIRING DIAGRAM

Wiring Diagram

Presents the electrical schematic diagram for the refrigerator's circuits.

Electric Accessories Layout

CHAPTER 6. FAILURE DIAGNOSIS

Outline of Control

Check Mode of Defrost Heater (Forced Defrosting)

Details the method to force-activate the defrost heater for testing.

Diagnosis Method of Failure

Outlines a systematic procedure for diagnosing various refrigerator failures.

Conversion Table

Circuit Diagram of Main PWB

Presents the detailed circuit diagram for the main printed wiring board.

CHAPTER 8. ASSEMBLING PROCEDURES OF MAIN PARTS AND CAUTIONS

Defrost Heater

Detailed instructions on how to remove and replace the defrost heater.

CHAPTER 9. COOLING UNIT

Cooling Unit

Information on the cooling unit, including notes on brazing iron pipes.

Location