Content
1 Introduction 21
1.1 Concept and target groups of this manual 21
1.2 Notational conventions 21
2 Before you start 23
2.1 Basic information 23
2.1.1 Proceeding 23
2.1.2 Advanced Thermal Design (ATD) 23
2.1.3 Installing optional components 24
2.1.4 Replacing a defective component 24
2.2 Classification of procedures 25
2.2.1 Assignment of unit categories 25
2.2.2 Customer Replaceable Units (CRU) 25
2.2.3 Upgrade and Repair Units (URU) 26
2.2.4 Field Replaceable Units (FRU) 27
2.3 Average task duration 29
2.4 Tools you need at hand 30
2.5 Documentation overview 30
2.5.1 About availability of manuals 30
2.5.2 List of documents 30
3 Important information 33
3.1 Introduction 33
3.2 Safety instructions 33
3.2.1 Basic safety instructions 33
3.2.2 Before starting up 34
TX2550 M5 Upgrade and Maintenance Manual