Keysight Infiniium 8000 Series, Руководство по обслуживанию

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Troubleshooting
This section provides troubleshooting information for the Keysight Technologies
8000 Series oscilloscope. The service strategy of this oscilloscope is replacement
of defective assemblies.
Safety
Read the Safety Summary at the front of this manual before servicing the
oscilloscope. Before performing any procedure, review it for cautions and
warnings.
W A R N I N G SHOCK HAZARD!
Maintenance should be performed by trained service personnel aware of the hazards
involved (for example, fire and electric shock). Lack of training and awareness of the
hazards could result in electrical shock. When maintenance can be performed without
power applied, the power cord should be removed from the oscilloscope.
W A R N I N G
MOVING PARTS HAZARD!
Use caution when working around the cooling fans when the cover has been removed
from the oscilloscope. The cooling fan blades are exposed on one side and can be
hazardous. Install the optional fan safety shield (Keysight Technologies P/N 54810-
00601) to protect your fingers from the fan blades.
Tools Required
You will need basic electronic troubleshooting tools, including a digital
multimeter and a 100- MHz (or faster) oscilloscope.
See Chapter 6, “Replacing Assemblies,” if you need to remove and replace
assemblies.
ESD Precautions
When using any of the procedures in this chapter, you must use proper ESD
precautions to protect the oscilloscope components from ESD damage. Failure
to follow proper ESD control procedures may cause immediate failure or latent
damage. Latent damage may result in equipment failure after a period of time.
As a minimum, you should place the oscilloscope on a properly grounded ESD
mat and wear a properly grounded ESD wrist strap when working on the
oscilloscope.
Keystroke Conventions
To guide you while setting up the oscilloscope, the following conventions are
used to represent keystrokes and other interactions with the oscilloscope:
• When you need to issue a command through the graphical interface, the
command will be phrased like this: “Select <command> from the <menu name>
menu.”
• When you need to select an object on the graphical interface, the instructions
will be phrased something like this: “Select the OK button.”
• When you need to press a key, the instructions will be phrased something