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Caddy™
Tig 1500i TA34        
Tig 2200i TA33/TA34
Service manual
0740 800 186 GB 20160202
Valid for: serial no. 803- to 843-xxx-xxxx

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Table of Contents
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Summarization of Contents

Introduction to the Welding Machine
Design Structure of the Power Source
Describes the modular design and inverter principle of the welding machine.
Module Functions Overview
Details the purpose of key modules like MMC, Mains, TIG, Power, and Processor.
Technical Data and Specifications
Key Specifications Comparison
Compares electrical and operational parameters between Tig 1500i and Tig 2200i models.
Load, Performance, and Environmental Data
Details permissible load, efficiency, operating conditions, dimensions, and weight.
Wiring Diagram and Component Identification
Component Descriptions
Provides a list and definitions for components used in the wiring diagrams.
Description of Operation and Module Functions
Module Overviews
Covers the functions and components of key modules: MMC, 2AP1, 10AP1, 15AP1, 15AP2, and 20AP1.
20AP1 Control Board Detailed Functions
Explains control board operations: power supplies, CAN bus, process control, and component layout.
Fault Codes and Troubleshooting
Fault Logging and Summary
Details how faults are logged, displayed, and provides a summary of error codes.
Fault Code Descriptions and Actions
Provides detailed explanations and troubleshooting actions for specific fault codes.
Service Instructions and Procedures
ESD Precautions and Service Aids
Covers electrostatic discharge prevention and lists available service tools like SST 3 and ESAT kit.
Component Testing Procedures
Outlines procedures for checking semiconductor modules, diodes, gate pulses, and other components.
Soft Starting and Mounting Procedures
Details soft starting, thermal paste application, and component mounting instructions.

Table of Contents