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Samsung Manuals
Refrigerator
RT40MB
Service manual
Samsung RT40MB Service Manual
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Table Of Contents
48
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Product Specifications
Warning/Caution
Description of Symbols
Safety Warnings
Specifications of Electric Components
Semi Electric Control Type
Electric Circuit Diagram
Mechanical Type
Product Dimension
Extemal Size and Designations
Identifying and Disassembling the Parts
To Remove Bio Deodorizer
To Remove Shelves in the Freezing Compartment
To Remove Shelves in the Refrigerating Compartment
Schematic Diagram of Coolant Gas Circulation
Refrigeration Cycle
Cool Air Circulation
Defrosting Function
Temperature Control Part Design
Temperature Control Function
Circuit Operation Theory
Testing Function
Forced Starting Function
Forced Defrosting Function
Test Function Release Mode
Self-Diagnosis Function
Operational Principle of each Circuit
Power Circuit
Oscillation Circuit
Reset Circuit
Door S/W Sensor Circuit
Temperature Sensor Circuit
Temperature Controller (Rotary S/W) Circuit
Sub PCB Ass'y
Load Operation and Indicating Lamp Controlling Parts
Table of Temperature Change of Refrigerator
Various OPTION Function
Detecting Defects and Trouble Shooting
When Refrigerator Temperature Is too High or too Low
Checking Abnormalities of MAIN PCB ASS'Y
Circuit
VSB Relay
Safety Standard & File Numbers
Odering Information
Structure
Features
Amps. Miniature Slim Type Power Relay
Absolute Maximum Rating
Electrical Characteristics
Voltage Detector
Electrical Characteristics Ka7812/I
Absolute Maximum Ratings
Circuit Related Parts List
Regulator
3-Terminal 1A Positive
Resistance and Voltage Conversion Table of Sensor for Temperature
Specification of Main Part
Schematic Diagrams
Pin Configuration
Main Pcb
Trouble Check for the Cooling Cycle
Troubleshooting
Exploded View & Parts List
Freezing Compartment
Refrigerating Compartment(Mechanical Type)
Refrigerating Compartment(Semi Electric Type)
Door Parts
Cabinet Parts & Unit(Semi Electric Type)
Cabinet Parts & Unit(Mechanical Type)
How to Disassemble of Freezing Compartment
Cover-Evap Ass’y
Changing the Light Bulb
Remove the Chiller Compartment by
Unscrew and Remove the Light Bulb
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Product Specifications
2
Electric Circuit Diagram
3
Circuit Operation Theory
4
Troubleshooting
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REFRIGERATOR
Model :RT40MA / MB
RT44MA / MB
CONTENTS
1. Product Specifications
2. Safety Warnings
3. Specifications of Electric Components
4. Electric Circuit Diagram
5. External Size and Designations
6. Refrigeration Cycle
and Cool Air Circulation
7. Circuit Operation Theory
8. Troubleshooting
9. Exploded View and Part List
10. Disassembly of Freezing Compartment
11. Disassembly of Refrigerating Compartment
Table of
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Troubleshooting
Detecting Defects and Trouble Shooting
23
Troubleshooting
37
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Summarization of Contents
Product Specifications Overview
General Safety Warnings and Precautions
Description of Symbols
Explains the meaning of warning and caution symbols used in the manual.
General Safety Precautions
Covers essential safety guidelines to prevent hazards during appliance use and maintenance.
Electric Component Specifications
Electrical Circuit Diagrams
Semi Electric Control Type Diagram
Illustrates the electrical connections for the semi-electric control system.
Mechanical Type Diagram
Shows the wiring schematic for the mechanical control type refrigerator.
External Dimensions and Designations
Product Dimensions
Provides detailed measurements and labeling for the refrigerator's exterior.
Refrigeration and Air Circulation Systems
Refrigeration Cycle Schematic
Depicts the flow of the coolant gas through the refrigeration system components.
Cool Air Circulation Flow
Explains how cold air is distributed within the freezer and refrigerator compartments.
Circuit Operation and Control Theory
Temperature Control Functions
Details how the freezer and refrigerator temperature controls operate and their settings.
Defrosting Function
Explains the automatic defrosting process, trigger conditions, and heater control.
Testing Function
Describes special test modes for forced starting and defrosting operations.
Self-diagnosis Function
Outlines the refrigerator's self-diagnostic capabilities and defect indication methods.
Troubleshooting Guide
Cooling Cycle Troubleshooting
Provides a symptom-cause-suggestion guide for cooling system malfunctions.
Diagnosing Main Components
Details methods and criteria for testing key components like compressor, relays, and heaters.
Exploded Views and Parts Lists
Freezing Compartment Parts
Lists and illustrates all components within the freezing compartment.
Refrigerating Compartment (Mechanical Type) Parts
Shows exploded views and part names for the mechanical type refrigerating compartment.
Refrigerating Compartment (Semi Electric Type) Parts
Details parts for the semi-electric type refrigerating compartment via exploded views.
Door Parts
Illustrates and lists all parts associated with the refrigerator doors.
Cabinet Parts & Unit (Semi electric Type)
Shows the external cabinet components and internal units for the semi-electric model.
Cabinet Parts & Unit (Mechanical Type)
Lists cabinet parts and units for the mechanical control model with diagrams.
Freezing Compartment Disassembly
Disassembly of Cover-Evap Assy
Step-by-step instructions for removing and reassembling the freezer's evaporator cover.
Refrigerating Compartment Disassembly
Changing the Light Bulb
Provides instructions for safely replacing the internal light bulb of the refrigerator.
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