Zenith H-100 Service Manual page 64

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Disconnect the 50-conductor cable at P1
and the 34-conductor cable at P2 from
the H-207 board.
Lift up on the H-207 board extractors
to pop the board free from the S-100
bus connector.
Now lift the H-207 board from the card
cage.
This completes the removal of the H-207 board from the
H/Z-100 All-in-One computer. Reverse the procedure to
install the board into the computer.