User Manual for ALPHA Director with Smart Alec option
Installation and setup: Updating the sign’s firmware (or EPROM)
17
Updating the sign’s firmware (or 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.
WARNING
Hazardous voltage.
Contact with high voltage may
cause death or serious injury.
Always disconnect power
to sign prior to servicing.
232
485
1.
Remove the two
screws holding
the signs’ cap.
2.
Remove the cap.
3.
Pull up and remove the clear
plastic lens on the sign’s front.
Figure 4: 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.
Summary of Contents for 0022-0001
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