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Color Active-Matrix LCD Touch Panels 1MB Memory Upgrade 147
EXM-1MB Memory Upgrade
Operation
You must replace the CATP’s 256KB integrated circuit (IC) with the EXM-1MB
Memory Upgrade ICs to increase the storage capacity for control pages and
symbols. The EXM-1MB Memory Upgrade consists of two 512KB memory ICs. You
will need a Phillips screwdriver and a non-conducting flat-blade tool to slip under
the installed 256KB IC and pry it out of its socket.
AXT-CV and AXT-CA
To install the EXM-1MB Memory Upgrade into the AXT-CV and AXT-CA CATP:
1. Discharge the static electricity from your body by touching a grounded object.
2. Remove the AXlink connector (and other connectors if applicable) from the
rear side of the CATP.
3. Flip the CATP face down onto a soft cloth, and remove the four Phillips-head
screws from the bottom panel. Then, gently remove the panel.
4. Gently rotate the circuit card backward until you can lay it down flat with the
batteries exposed. Figure 200 shows the location of the memory IC sockets on
the circuit card.
ODD
EVE
199
CORP.
50-0940
AXT-
P
P
G
P
J
JP
JP
JP
Memory IC sockets
Erasable programmable read only memory
(EPROM) sockets for firmware
Note
This memory upgrade is
necessary to allow older
panels to utilize the new G3
firmware.
Figure 200
IC connector sockets