Agilent Technologies 16900A, Service Manual

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48 16900A, 16902A, and 16903A Service Guide
6
Replacing Assemblies
To prepare the instrument for disassembly
Do this procedure before doing any disassembly procedure
on the instrument.
1
Close the Agilent Logic Analyzer application software.
2
Power off the system using one of the methods explained
below.
3 Remove the power cord.
4 Move the instrument to a static safe work environment.
To power off the system
There are several ways to power off the logic analysis
system.
Using the Windows Shutdown
On the logic analysis system desktop click Start> Shut
Down or if you are running remote desktop, click Start>
Settings> Windows Security> Shut Down . This software
power off does the following:
• Closes all programs that are running.
• Writes all data to the disk.
• Turns off the power supply.
WA R N I N G
Hazardous voltages exist on the power supply. To avoid electrical
shock, disconnect the power from the instrument before
performing the following procedures. After disconnecting the
power, wait at least six minutes for the capacitors on the power
supply board to discharge before servicing the instrument.
C A U T I O N
Damage can occur to electronic components if you remove or
replace assemblies when the instrument is on or when the power
cable is connected. Never attempt to remove or install any assembly
with the instrument on or with the power cable connected.
N O T E
When powering off the logic analysis system, wait until the fans stop
turning (about 15 seconds) before turning the logic analysis system
back on. This ensures that internal circuitry restarts in a known
state.