BetaBrite Director User Manual
54
Appendices: Appendix B — Updating the sign’s firmware (EPROM)
Appendix B — Updating the sign’s firmware (EPROM)
From time to time it may be necessary to update the sign’s internal
firmware by replacing an EPROM inside the sign. To do this, follow these
steps:
1.
Remove power from the sign.
2.
Replace the sign’s internal EPROM according to this diagram:
3.
Re-assemble the sign, being careful not to catch any wires. Then re-
apply power to the sign.
WARNING
Hazardous voltage.
Contact with high voltage may
cause death or serious injury.
Always disconnect power
to sign prior to servicing.
232
485
EPR
OM
1.
Remove one screw
from each of the
L-brackets holding
the sign’s cap.
2.
Lift up and remove
the cap.
3.
Pull up and remove the clear
plastic lens on the sign’s front.
Figure 3: How to change the sign’s EPROM
4.
To remove the current
EPROM, grasp these two tabs
and gently pull it out.
Then put in the new EPROM.
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