SD SD Card Replacement in BC-440

Preparing for replacement

 Use an antistatic wrist strap

 Disconnect the mains power and battery backup

 Unscrew the 4 screws on the BC-440 unit

 Remove the BC-440 board, disconnect the network

cables, mains cable and AlCom+, plus AFB and serial

contacts if necessary

 Consult the drawings below

 Identify the version of the Controller board, either

BSA-400 or BSA-400A (see next page)

 Make sure you have the correct type of SD Card

according to the version of Controller board (see “SD

Card part numbers” on next page)

 Unscrew and remove the 6 screws on the BSF-440

board

 Gently place the board beside the unit without

disconnecting the ribbon cable

 Replace the SD Card (see detailed description on next

page)

 Re-place the BSF-440 board correctly onto the screw

pillars, then mount and tighten the screws

 Re-place the BC-440 unit, reconnect all cables that

have been disconnected, then mount and tighten the

4 front screws

 Perform a startup (see “Startup” on next page)