Sinclair KJRP-75A User And Installation Manual page 13

Connect terminal A to the 5-core socket of the IDU main
control board (See the figure below).
Supplied connection cable set
of IDU main control board
Terminal A
2. Insert a slotted-head screwdriver into the bottom slot of the
wired controller, and rotate in the direction indicated to remove
the rear cover of the wired controller.
Screwdriver
rotation direction
Slotted
screwdriver
IDU Main control board
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