Rockwell Automation T3122 ICS Regent Processor Modules - Manual (Page 15)

Processor Modules (T3110, 11, 12, 20, 21, and 22)
P D - 6 0 0 0 M a r - 0 6
15
Remove the new U42 EPROM from its packaging and inspect
its pins to make sure they are not bent.
Find the pin one index point (or notch) on the new EPROM.
Position the new EPROM in the chip socket so that the pin
one index point is facing the U42 label on the printed circuit
board.
Carefully insert the new EPROM into the chip socket. It is
often easiest to align and partially insert the pins on one side
of the chip first, then align the other pins on the other side,
and press the EPROM carefully into place.
Before pressing the chip into place, check that all pins are
properly aligned in their respective holes. If the pins are not
properly aligned, carefully remove the chip and repeat the
previous step.
Gently press the EPROM into the chip socket. As the EPROM
is pressed home the chip socket’s retaining clips will rotate
inward to secure the EPROM.
After fully inserting the EPROM, make a final check to
ensure that the pins are not bent, the pins are fully engaged
and the EPROM orientation is correct. If any pins are bent or
the EPROM is not oriented correctly, remove the EPROM and
reinstall it.
If you install and apply power to a module with an EPROM
installed backwards the EPROM may be damaged. When the
EPROM is inserted backwards, power will be applied to
incorrect pins of the EPROM. If this happens, do not remove
and re-insert the same EPROM. Replace the incorrectly
positioned EPROM with a new EPROM.
Repeat the above steps for the U43 EPROM.
After installing the two new EPROMs in the main processor
board, rotate (or flip) the main processor board to one side to
expose the I/O processor board.
Locate the U19 EPROM on the I/O processor board and use
the steps described above to remove the old EPROM and
install the new EPROM.
Important!