Samsung XA080J User Manual page 110

Receiving card
Power off the cabinet where the receiving card is in
Remove the cat-5 cable from the receiving card as shown below
Remove the bad receiving card from box by screwdriver as shown below
Bring a new receiving card and put it in the power box then install it by screwdriver as
shown below
Install the cat-5 cable into receiving card as shown below
Power on the cabinet.
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