Board Replacement - Rice Lake REVOLUTION 682 Synergy Plus Technical Manual

15.5 Board Replacement

Board replacement should only be done by a service technician.
IMPORTANT: Use anti-static protection for grounding and to protect components from electrostatic discharge (ESD) when
working inside the 682 enclosure. Procedures requiring work inside the 682 must be performed by qualified service
personnel only.
To replace a 682 board, use the following procedure:
1. Disconnect power to the indicator.
2. Remove backplate as described in
3. Label connections for re-installation to board.
4. Disconnect all connections from the board.
5. Remove all screws securing the board.
6. Disconnect the overlay ribbon cable from the J26 connector and the display ribbon cable from the J27 connector on the
reverse side of the board as it is lifted from the enclosure.
7. Use the J1-J5 connectors of the new replacement board to rest the board on the bottom edge of the enclosure opening.
8. Press the end of the overlay ribbon cable up against the J26 connector while it is still closed. Open the J26 connector
and then close it once the end of the overlay ribbon cable has seated itself inside of the connector.
9. Line up the display ribbon cable connector with the J27 connector and press the backside of the display ribbon cable
end piece, so the connectors click together.
10. Place the new replacement board into the enclosure and secure with previously removed screws.
11. Reconnect all connections to the board. See
IMPORTANT: Always verify indicator has been returned back to a safe state with the proper installation of all connections
and a complete functions test before reinstalling the backplate and returning the indicator back into service.
Section 2.3 on page 5.
Figure 15-2. Replacement Board Installation
Overlay
Ribbon
Cable
Display
Ribbon
Cable
Section 2.5 on page 11
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J26 Connector
J1 Connector
for details on the board connectors.
Maintenance
J27 Connector
107