Motherboard Assembly; Removal - Keysight N8973B Service Manual

Assembly Replacement Procedures

Motherboard Assembly

Motherboard Assembly

Removal

1. Remove the instrument outer case. Refer to the
2. Remove the rear panel. Refer to the
3. Remove the top brace and reference bracket. Refer to the
4. Remove the reference assembly. Refer to the
5. Remove the CPU assembly. Refer to the
6. Remove the power supply assembly. Refer to the
7. Remove the AIF/DIF assembly. Refer to the
8. Remove the Front End Control assembly. Refer to the
9. Remove the L.O. Synthesizer assembly. Refer to the
10.Remove the Midplane assembly. Refer to the
11.Remove the Front Frame Assembly. Refer to the
12.Remove the RF bracket. Refer to
13.Remove the fan assembly. Refer to the
14.Refer to
Keysight NFA Series Noise Figure Analyzers Service Guide
removal procedure.
removal procedure.
removal procedure.
procedure.
Assembly" removal procedure.
(DIF) Assembly" removal procedure.
Assembly" removal procedure.
Assembly" removal procedure.
removal procedure.
removal procedure.
procedure.
Figure 15-44
by removing the eight screws (2) (two on each side and four on the
bottom).
"Rear Panel"
"CPU Assembly"
Figure 15-8 on page
"Fan Assembly"
and Figure 15-45. Remove the midplane bracket (1)
"Instrument Outer Case"
removal procedure.
"Top Brace"
"Reference Assembly"
removal
"Power Supply
"Analog I.F. (AIF)/Digital I.F.
"Front End Control
"L.O. Synthesizer
"Midplane Assembly"
"Front Frame Assembly"
400.
removal
447