Sony Playstation 2 Repair Manual page 38

Once the cover is removed you will be able to see
where the ribbon cable connects. The blue side is
facing up in this picture.
Tip- This connector opens up wide on one end and
then after you place the cable in it snaps shut. Open
it up carefully before inserting or removing the
cable.
Carefully reassemble the console. You may want to check the operation of the cable before putting the top
cover back on. Just remember to be careful when working on live equipment.
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