Motherboard Assembly; Removal - Keysight n9020a Service Manual

Assembly Replacement Procedures

Motherboard Assembly

Motherboard Assembly

Removal

1. Remove the instrument outer case. Refer to the Instrument Outer
2. Remove the rear panel. Refer to the Rear Panelremoval procedure.
3. Remove the top brace and reference bracket. Refer to the Top Brace and
4. Remove the reference assembly. Refer to the Reference Assembly removal
5. Remove the CPU assembly. Refer to the CPU Assembly removal
6. Remove the power supply assembly. Refer to the Power Supply Assembly
7. Remove the AIF/DIF assembly. Refer to the Analog I.F. (AIF)/Digital I.F.
8. Remove the Front End Control assembly. Refer to the Front End Control
9. Remove the L.O. Synthesizer assembly. Refer to the L.O. Synthesizer
10.Remove the Midplane assembly. Refer to the Midplane Assembly removal
11.Remove the Front Frame Assembly. Refer to the Front Frame
12.Remove the RF bracket. Refer to
13.Remove the fan assembly. Refer to the Fan Assemblyremoval procedure.
14.Refer to
Caseremoval procedure.
Reference Bracket removal procedure.
procedure.
procedure.
removal procedure.
(DIF) Assembly removal procedure.
Assembly removal procedure.
Assembly removal procedure.
procedure.
Assemblyremoval procedure.
Figure 14-69
by removing the eight screws (2) (two on each side and four on the
bottom).
Figure 14-9 on page
and Figure 14-70. Remove the midplane bracket (1)
521
449.