Maintenance
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7.3.1.3
Upgrade Firmware IC Installation
7.3.1.4
Install the upgrade firmware IC into the PWA.
Step 1. Install the new firmware chip into the socket on the PWA. Be sure that
the notched end of the IC is matched to the notched end of the socket. Ensure
that the IC is firmly seated in the socket.
7.3.1.5
Top Shield Replacement
Replace the top shield. Be sure that the notch on the top shield is positioned at
the top left corner of the module as shown in the diagram under “Top Shield
Removal”. Align the holes in the top shield with the standoffs and press down
around each standoff until they snap in place.
7.3.2 Display Unit Firmware/LCD Module Installation Procedure
The following steps will need to be followed to complete the Display Unit (DU)
firmware upgrade and/or LCD Module replacement:
Ensure that the Module’s configuration is saved using the 3500 Rack
Configuration software.
Refer to Section 1.2 (Handling and Storing Considerations) before handling
the monitor or the upgrade firmware IC.
Invoke test mode and record the Display Unit version number. Refer to
section 7.3.2.8 for test mode.
Remove the DU from its mounting.
Summary of Contents for 3500/93
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