Agilent Technologies 16900A, Service Manual

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118 16900A, 16902A, and 16903A Service Guide
8
Theory of Operation
be able to go online with the local hardware until the
drivers are installed/running. In addition, other machines
will not be able to remote connect to the machine and use
its hardware if the drivers are not installed and running.
Because the service should always be running regardless of
whether any user is logged onto the system, the logic
analyzer should always be responsive to remote connection
requests from other machines. The Touch Off and Keyboard
buttons should also always function.
When the GUI application is launched by a logged on user,
the application (by default) will attempt to connect to local
hardware and go "online". If the service is not started, the
application should either wait for the service to start (newer
software revisions) or generate a message box indicating the
service needs to be started (older software revisions). If the
drivers are not loaded, the GUI application will start in
offline mode.
Once the GUI application is running, the user can go online
with local hardware or the hardware in any other Agilent
168x/169x/1690x logic analyzer running the same version of
the logic analyzer software. The remote machine must be
available on the network.
Product install
The product install (SetupLAxxxx.exe) performs the
following:
• Install the logic analyzer- specific files to the local hard
drive.
• Register the application with the operating system
(various registry settings are applied including COM
registration).
• Create start menu/desktop shortcuts.
• Install device drivers.
• Install and start the service.
• Check frame boot- EEPROMs (non- volatile ROMs) and
verify they are up- to- date. Reloads the boot- EEPROMs if
necessary.