Replacing The Memory Chips In Typical Touch Panels - AMX Color Active-Matrix LCD Instruction Manual

Note
Check for bent or non-
inserted pins.
Warning
During the replacement proc-
esses, cables may be pulled
from their connections and
should be rechecked to con-
firm that all cables are con-
nected.
Figure 232
RAM IC location on a typical
Mini-TiltScreen circuit board
Note
Memory ICs on older panels
will not have white labels on
the memory chips.
Note
Factory direct panels will al-
ready have the memory up-
grade required to run the new
G3 firmware.
160 Upgrading from G2 to G3 Firmware
10.
Using the new EPROM, match up the socket holes to its prongs; then insert them
until they are firmly resting in the base. Repeat steps 6 through 9 for the addi-
tional EPROM.
11.
Next, replace the memory. Memory specification for the new G3 firmware are
listed in the Specifications section.

Replacing the memory chips in typical touch panels

Figure 232 shows the location of the RAM IC on a mini-touch panel circuit board.
Figure 233 shows the typical location on the UniMount and rack-mount circuit
boards. Refer to the Memory Upgrade section for detailed information on upgrading
memory to meet G3 specifications.
P1
1
4
1
J2A
Connector side of circuit card
U24
J4
U19
1
B1
U3
Color Active-Matrix LCD Mini-Touch Panels
32-pin socket
RAM IC
U4
B2