AMX 8.5" Color Passive LCD Touch Panels - Manual (Page 47)

Upgrading the Firmware
43 Color Passive-Matrix LCD Touch Panels
7. Gently pry the EPROMs from their connection base until they begin to loosen. Carefully pull
them out by either using an EPROM removal device or by gently pulling them from their base
(making sure to evenly pull the prongs from their socket holes).
.
8. Using the new EPROMs, match up the socket holes to their respective prong and the notches to
the correct direction for both the new Odd and Even chips.
9. Insert all of the prongs simultaneously until each is firmly resting in its socket hole and the
entire chip is securely connected to its base.
10. Rotate the circuit card back to the original position and place it in the touch panel housing.
11. Plug the 2-pin power or AXlink connector back into the touch panel for approximately
1 minute. Once you can confirm the panel is receiving power, remove the connector, align the
screw hole and insert the Phillips-head screw and tighten.
12. Replace the housing on the touch panel and align the screw holes. Insert the seven Phillips-
head screws and tighten.
13. Plug all connectors back into the touch panel.
14. Re-install the unit to its appropriate mounting surface.
Insert the EPROMs with the notches facing the correct direction. Match the Even and
Odd EPROM placement with the location shown above.
During the replacement process, cables may be pulled from their connections and
should be re-checked to confirm they are securely connected.