Installation
System PCAs
Transmitter
1. Open the transmitter casing to access the electronics of the remote transmitter.
a. Ensure all power to the transmitter is turned off.
b. Unfasten the two latches on the remote transmitter case and open the unit.
c. To remove the LCD PCA
i. Detach any cabling and remove the four retaining screws holding the
LCD PCA to the face of the transmitter.
ii. Gently pull the LCD PCA to remove it from the housing.
iii. Insert the new LCD PCA board, insert the retaining screws and reconnect
any cabling from the old board to the new PCA.
2. To remove the ISIO, Main CPU or Power Supply PCA
a. Detach any cabling and gently pull the PCA from its connection port.
b. Insert the new PCA into the connection port.
c. Reattach any cabling.
3. To remove the remote backplane
a. Remove the ISIO, Main CPU and Power Supply PCAs.
b. Remove the four screws, one in each corner, securing the card cage into the
housing.
c. Carefully remove the card cage from the housing, remove the Remote
Backplane PCA from the bottom, and replace with the new board.
d. Place the card cage back into the transmitter housing and secure the card cage
in place by inserting the four previously removed screws.
e. Reinstall the ISIO, Main CPU and Power Supply PCAs.
4. Reattach any disconnected cabling.
5. Close and latch the two fasteners.
6. Apply power to the unit.
3-10 DensityPRO Installation Manual Thermo Scientific
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