3. Fit the firmware replacemen
legs are in the socket.
4. Switch on system and allow it to initialise.
6.1.9 EEPROM Replacement
Follow the steps detailed in section 5.2.12
6.1.10 Interface PCB Replacement
Prior to replacing the Interface Board ensure the replacement board is the correct version, 1-44782-
K183X where one input power supply connection is required or 1-44782-K183GL were two input power
supply connections are required.
1. Power down the system.
2. Disconnect all external wires from the Interface Board ensuring each wire is identified to allow
correct reconnection to the replacement board.
3. Disconnect cables between the Interface Board and Main Control Processor Board.
4. Remove 8 fixing screws and washers. Note the fixing screw in the centre of the board is fitted with
a nylon washer. Remove the PCB.
5. Fit the new PCB with the 8 screws and washers, refitting the screw with the nylon washer in the
correct location. Replace the cables between the Interface Board and Main Control Processor Board.
6. Reconnect the external wires into the correct terminals.
7. Switch on system and allow it to initialise.
8. Ensure no communications faults are indicated on the Control Panel.
9. Using the test menu test each of the relay connections and ensure the correct response is produced
by the AMS.
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