Esd Precautions; Tools Required - Keysight 90000 X Series Service Manual

Replacing Assemblies
Use the procedures in this chapter when removing and replacing assemblies and parts
in the Keysight Technologies oscilloscopes.
In general, the procedures are placed in the order to follow for removing a particular
assembly. The procedures listed first are for assemblies that must be removed first.
The graphics 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)
• Power drivers: 5 in- lbs, 18 in- lbs

ESD 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.
C A U T I O N AVOID DAMAGE TO THE OSCILLOSCOPE!
Failure to implement proper antistatic measures may result in damage to the oscilloscope.
Safety Precautions
C A U T I O N 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.
W A R N I N G
SHOCK HAZARD!
To avoid electrical shock, adhere closely to the following procedures. Also, after
disconnecting the power cable, wait at least three minutes for the capacitors on the
power supply to discharge before servicing this oscilloscope. Hazardous voltages exist
on the inverter for the display monitor.
W A R N I N G SHOCK HAZARD!
Read the Safety information at the back of this guide before performing the following
procedures. Failure to observe safety precautions may result in electrical shock.
W A R N I N G INJURY CAN RESULT!
Use caution when the oscilloscope fan blades are exposed as they can cause injury.
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