96
Replacing Assemblies
Use the procedures in this chapter when removing and replacing assemblies
and parts in the Keysight Technologies 8000 Series oscilloscope.
In general, the procedures that follow are placed in the order to be used to
remove 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.
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.
CAUTION AVOID DAMAGE TO THE OSCILLOSCOPE!
Failure to implement proper antistatic measures may result in damage to the oscilloscope.
Tools Required
The following tools are required for these procedures.
• Torx drivers: T6, T8, T10, T15, T20
• Socket wrench: 5/8 inch
• Medium size (3/16-in) flat- blade screwdriver
• Nut Drivers: 3/16- in, 9/32- in, 5/16- in, 5/8- in
• Torque driver, 0.34 Nm (3 in- lb), 5 mm or 3/16- in hex drive
• Torque driver, 0.34 Nm (3 in- lb), Torx T6 drive
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 which may be damaged if the assembly
is removed or replaced while power is connected to the oscilloscope.
WARNING 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 while power is applied.
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