1 689 975 285 2017-06-30| Robert Bosch GmbH
| BAT 645 | 15
1. Symbols used 16
1.1 In the documentation 16
1.1.1 Warning notices -
Structure and meaning 16
1.1.2 Symbols in this documentation 16
1.2 On the product 16
2. User instructions 16
2.1 Target group 16
2.2 Equipment required 16
2.3 ESD protection 16
3. Overview 17
3.1 BAT 645 17
3.1.1 Top part of housing 17
3.1.2 Lower housing part 17
4. Assembly / disassembly 18
4.1 Replacing the housing caps 18
4.2 Replacing the top part of housing 18
4.2.1 Removing the top part of housing 18
4.2.2 Removing the M1 circuit board and
USB circuit board from the housing
upper part 19
4.2.3 Installing the M1 circuit board and
USB circuit board in the housing
upper part 19
4.2.4 Assembling the top part of housing 19
4.3 Replacing the power connector (power inlet
socket connector) 19
4.4 Replacing the power module 20
4.4.1 Removing the power module 20
4.4.2 Fastening the power module 20
4.5 Replacing the fan 20
4.6 Replacing the connection for the battery
charging cable 21
5. Faults & Troubleshooting 21
5.1 Overview of all faults 21
5.2 Faults in the initialization mode 22
5.3 Power module faults 23
5.4 Faults during charging 24
5.5 Hardware faults 24
5.6 Measuring points on the power module 26
6. Connection diagram 27
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