Tyan Computer Transport GT20 B5161 - Manual (Page 47)

Chapter 3: Replacing Pre-Installed Components 39
3.5 Replacing the LED Control Board
Follow these instructions to remove the LED control board.
1. Remove the 2 screws securing the LED control board to
the chassis.
2. Pull the LED control board free from the chassis and
unplug the ribbon and USB cables from the connector.
3. Remove the three screws securing the LED control board
to the bracket