3500/93 SYSTEM DISPLAY
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7. Maintenance
This section describes how to verify that the Display Interface Module and the
Display Unit are operating correctly. Before you use the verification utility, check
that the cable between the Display Unit and the Display Interface Module is
connected and that the Display Interface Module is configured correctly. These
modules cannot be repaired in the field. Modules that are not operating correctly
should be replaced with a spare.
When performed properly, this module may be installed into or removed from the
rack while power is applied to the rack. Refer to the Rack Installation and
Maintenance Manual (part number 129766-01) for the proper procedure.
7.1 Verifying Monitor Value
Verify the value displayed on the Display Unit by using the verification utility of
3500 Rack Configuration Software to compare the proportional value displayed
on the Display Unit to the value displayed on the verification screen of a monitor.
7.2 Maintaining the Display Unit
No routine maintenance or adjustment is required for the Display Unit. Use
standard household liquid glass cleaner (nonabrasive) to clean the viewing
surface should dust or dirt build up on the display.
7.3 Performing Firmware/LCD Module Upgrades
Occasionally it may be necessary to replace the original firmware that is shipped
with the 3500/93 Display Interface Module (DIM). The following instructions
describe how to replace the existing DIM firmware, the existing Display Unit (DU)
firmware and the DU LCD module. The DIM will need to be reconfigured using
the 3500 Rack Configuration software after having its firmware upgraded.
The following items will be required to perform the upgrades:
Large Flathead Screwdriver
Medium Phillips Screwdriver
¼ inch socket or nutdriver
Grounding Wrist Strap*
Small Flathead Screwdriver
Upgrade Firmware ICs*
Upgrade LCD module*
*Refer to Section 9 (Ordering Information) for part numbers. Users may use their
own grounding wrist strap or IC removal tool.
Summary of Contents for 3500/93
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