Servicing Your Mainframe; Chapter Overview; Problem Isolation; No Power Line Fuse - HP E840 A Series User And Service Manual

Chapter Overview

Problem Isolation

WARNING

No Power Line Fuse

Chapter 3

Servicing Your Mainframe

This chapter contains information for troubleshooting and replacing
selected components of the HP E840xA VXI mainframe. This chapter
includes the following information:
•
Problem Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
•
Replacing Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
•
Replacement Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . 51
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 HP E840xA mainframes is limited to replacement
of the Basic Monitor printed circuit (PC) assembly, power supply, and
impeller (module fan) assemblies.
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.
There are NO replaceable power line fuses on the HP 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.
Chapter 3
Servicing Your Mainframe 43