TYAN Transport GT24 B2891 Service Engineer's Manual page 55

4. Unplug the USB cable from the connector.
5. Remove the three screws securing the LED control board
to the bracket
6. Release the LED control board from the chassis. After
replacement, insert and secure the unit to the chassis fol-
lowing the reverse procedures from step 1~5.
Chapter 3: Replacing Pre-Installed Components 47