Keysight Technologies Infiniium 90000A Series, Service Manual

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80 90000 A-Series Service Guide
5
Replacing Assemblies
Replacing Assemblies
Use the procedures in this chapter when removing and replacing assemblies and
parts in the Infiniium 90000 A-Series oscilloscopes.
The pictures in this chapter are representative of the oscilloscope at the time of
this printing. Your unit may look different.
Tools required
The following tools are required for these procedures.
• Torx drivers: T10, T20
• Socket wrench: 9/16 inch
• Torque wrench: 3.5 mm (8 in-lbs)
• Flat-blade screwdriver: medium size (3/16 inch)
Safety precautions
When using any of the procedures in this chapter you must use proper ESD
precautions. As a minimum you must place the oscilloscope on a properly
grounded ESD mat and wear a properly grounded ESD wrist strap.
CAUTION
Failure to implement proper antistatic measures may result in damage to the
oscilloscope.
CAUTION
Remove power before removing or replacing assemblies.
Do not remove or replace any circuit board assemblies in this oscilloscope while
power is applied. The assemblies contain components that may be damaged if the
assembly is removed or replaced while power is connected to the oscilloscope.
WARNING
To avoid electric shock, adhere closely to the following procedures. Also, after
disconnecting the power cable, wait at least 3 minutes for the capacitors on the
power supply to discharge before servicing this oscilloscope.
WARNING
Use caution when the oscilloscope fan blades are exposed as they can cause injury.