46 16900A, 16902A, and 16903A Service Guide
6 Replacing Assemblies
16900-Series Disassembly/Assembly
This chapter contains the instructions for removing and
replacing the assemblies of the logic analyzer. Also in this
chapter are instructions for returning assemblies.
Replacement Strategy
These replacement procedures are organized as though you
are disassembling the complete instrument, from the first
assembly to be removed to the last. Some procedures tell
you to remove other assemblies of the instrument, but do
not give complete instructions. In these cases, refer to the
procedure for that specific assembly for the instructions.
Tools Required
• T6, T10, T15, T20 TORX screwdrivers
• #1 Pozidrive screwdriver
• 1/8- inch screwdriver
• 13/16- inch, deep- well nut driver
• 1/4- inch hex socket
• 3/16- inch nut driver
WARNING
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.
CAUTION
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.
CAUTION
Electrostatic discharge can damage electronic components. Use
grounded wrist straps and mats when performing any service to this
logic analysis system.