Interface Board - Remove and Install - User Interface Board
Removal Procedure
- Place the system in bypass mode by turning the keyswitch to the Bypass position.
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Illustration 1 | g00986177 |
User Interface Board |
- Shut down the system according to the shutdown procedure that is for the system that is being worked on.
Reference: Refer to Testing and Adjusting, "System Shutdown".
- Label all the input wires and all of the output wires.
- Disconnect the "24 VDC" connector from terminal "J1" (10) .
- Disconnect the "APC" connector from terminal "J2" (8) .
- Disconnect the "LCD" connector from terminal "J3" (1) .
- Disconnect the "Backlight Power" connector from terminal "J4" (7) .
- Disconnect the "Keypad" connector from terminal "J5" (2) .
- Disconnect "J11" (5) and "J9" (4) .
- Disconnect the connector for the keyswitch from terminal "J6" (3) .
- Disconnect the "EPO" connector from terminal "J7" (7) .
- Disconnect the "EPO Trip" connector from terminal "J10" (5) .
- Remove four nuts (11) .
- Remove the board from the four plastic mounting spacers.
Installation Procedure
- Install the board on the four plastic mounting spacers.
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Illustration 2 | g00986177 |
User Interface Board |
- Install four nuts (11) .
- Connect the "EPO Trip" connector to terminal "J10" (5) .
- Connect the "EPO" connector to terminal "J7" (7) .
- Connect the connector for the keyswitch to terminal "J6" (3) .
- Connect "J11" (5) and "J9" (4) .
- Connect the "Keypad" connector to terminal "J5" (2) .
- Connect the "Backlight Power" connector to terminal "J4" (7) .
- Connect the "LCD" connector to terminal "J3" (1) .
- Connect the "APC" connector to terminal "J2" (8) .
- Connect the "24 VDC" connector to terminal "J1" (10) .
- Energize the system according to the start-up procedure for the system that is being worked on.
Reference: Refer to Testing and Adjusting, "System Startup".
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