
3.6 Replacing the LED Control Board
Follow these instructions to replace the M1003 LED control board.
1. Remove the two screws securing the LED control board unit to
the chassis.
2. Unplug the cables from the connectors on the HDD backplane.
3. Push the LED control board unit out.
(
Note
: You may need a screwdriver to push the board at the
rear side.)
Chapter 3: Replacing Preinstalled Components
51
Summary of Contents for B4989
Page 1: ...Transport TN68 B4989 Service Engineer s Manual...
Page 2: ......
Page 27: ...1 6 6 System Block Diagram Chapter 1 Overview 19...
Page 30: ...22 Chapter 1 Overview...
Page 41: ...Chapter 2 Setting Up 33...
Page 43: ...5 Secure the holder to the chassis follow the above steps in reverse Chapter 2 Setting Up 35...
Page 50: ...42 Chapter 2 Setting Up...
Page 54: ...46 Chapter 3 Replacing Preinstalled Components...
Page 72: ...Rear View 64 Chapter 3 Replacing Preinstalled Components...
Page 86: ...Step 6 Connect the data cables 78 Appendix II Installing the Internal 2 5 HDD...
Page 92: ...84 Appendix IV Cable Connection Tables...
Page 96: ...88 Appendix V FRU Parts Table...