Agilent Technologies E8401A, User And Service Manual, Page: 45 / 66

Servicing Your Mainframe 43 Chapter 3
Chapter 3
Servicing Your Mainframe
Chapter Overview
This chapter contains information for troubleshooting and replacing
selected components of the Agilent E840xA VXI mainframe. This chapter
includes the following information:
•
Problem Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
•
Replacing Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
•
Replacement Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Problem Isolation
Table 3-1 lists symptoms which could appear in the mainframe over time.
The assembly most likely responsible for the symptom is also listed. Notice
that customer repair of the Agilent E840xA mainframes is limited to
replacement of the Basic Monitor printed circuit (PC) assembly, power
supply, and impeller (module fan) assemblies.
WARNING
There are no serviceable parts inside the mainframe. Repair is
limited to replacement of the monitor printed circuit
assemblies, power supply, power supply fan, and impeller
(backplane fan). Replacement of these components must be
performed at a static-controlled workstation by trained service
personnel only.
No Power Line Fuse
There are NO replaceable power line fuses on the Agilent E8401A and
E8403A VXI Mainframes. If the mainframe power supply fails to operate,
the power supply should be replaced. Exchange assemblies are available;
refer to Table 3-2.