Samsung XA067T User Manual page 106

HUB board
Power off the cabinet where the HUB board is in.
Remove the modules from front by front service tool as the modules service steps as
shown "Module replacement"
Remove the bad HUB board from the cabinet as shown below
Take off all the cables from bad HUB board and remove receiving card from HUB board as
shown below
Bring a new HUB board and install back the receiving card, then connect back the cables
as shown below
Install the new HUB board on the door of the cabinet as shown below
Install back the modules from front by front service tool as the modules service steps as
shown "Module replacement"
Turn on the cabinet.
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