Gee, You and another member is having the same problem.
Pick up the lamp from the floor (in red circle) left of the terminal at right.
Go left to the terminal.
Raise the middle terminal only (the one in front should be lowered to access the middle terminal.
Place the lamp at right end of the row second from bottom.
Then take the data crystal from the intersection of the 2 lamps.
Keep us posted.
If you get through this puzzle - can you keep the saved game please for the other member. Thanks.