Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 773)

Section 15B
Replacement Procedures
15B-17
8. Locate the software option chip with this figure. With a dip extractor,
remove the chip from the processor board. You may want to label it
before storing it. When the new or repaired processor board is
received, replace the software option chip.
Remove with dip extractor
You may be required in the case of hardware failure to replace the 9/230
Digital processor board. Before you remove the processor board you must
first remove the front cover, the power supply, the software option chip and
the flash memory SIMMs. The software option chip turns on all the
optional features that you purchased with the control.
To replace the processor board:
1.
Turn OFF all power to the control.
ATTENTION: To guard against electrical shock hazards, never
make connections or disconnections at the ac distribution network
unless the main ac disconnect switch is open and locked.
15B.6
Replacing the Processor
Board on the 9/230 Digital