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Section 8
Maintenance
Changing System Software
The system software is contained in EPROM IC17 on the 2775 Main Board. New software
releases are made available from time-to-time. These new releases may add features or be
maintenance upgrades. To install a new EPROM:
1.
Follow the steps listed in
disconnect J102 from the 2775 Main Board to ensure that there is no power on the board while
changing the system software.
2.
Use a PLCC extraction tool to carefully pry the EPROM IC17 from the socket.
3.
Install the update EPROM into the socket. Align the EPROM so that IC17 pin-1 is inserted into
pin 1 of the socket.
42
Model 2001 Service Manual
Assembly Exchanges
Changing System Software
on page 40 to open the monitor. Be sure to
Rev. 01
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