biosystems A15 - Changing the Microprocessor Board; Changing the Power Supply Board

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5.1.5.2. Changing the microprocessor board
a) Fold down the back cover of the electronics.
b) Disconnect all the hoses from the board.
c) Remove the bolts (1).
d) When installing the new board, reconnect all the connectors carefully.
5.1.5.3. Changing the power supply board
a) Fold down the back cover of the electronics.
b) Disconnect all the connectors from the power supply board.
c) Remove the 4 screws (1) that hold the board to the base.
d) Remove the board.
e) When installing the new board, reconnect all the connectors carefully.