432
Keysight NFA Series Noise Figure Analyzers Service Guide
Assembly Replacement Procedures
Power Supply Assembly
Replacement
1.
Slide the power supply assembly into the slot at the rear of the instrument
and push on the assembly to mate the connectors to the midplane
assembly.
2.
. Replace the three screws
(1)
through the power
supply bracket
(3)
and into the power supply
(2)
. Torque to
9 inch-pounds.
3.
Replace the CPU assembly. Refer to the
replacement
procedure.
4.
Replace the reference assembly. Refer to the
replacement procedure.
5.
Replace the top brace and reference bracket. Refer to the
replacement procedure.
6.
Replace the rear panel. Refer to the
replacement procedure.
7.
Replace the instrument outer case. Refer to the
replacement procedure.
Содержание N8973B
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