Keysight N9038A Service Guide

356 Keysight N9038A MXE Service Guide
CPU & Disk Drive
A4 Processor Assembly Description
A4 Processor Assembly Description
There have been many different A4 Processor assemblies used in the N9038A
MXE EMI Receiver over the years. The information in this chapter is for the
N9038A-PC6 assembly, which is the current version of this assembly at the
time this information was written. While much of this information is similar to
older versions of this assembly, not all of it will apply to all versions of this
assembly.
If the A4 Processor assembly is suspect in an instrument failure, a full
description of the instrument boot process is described in Chapter 2, “Boot Up
and Initialization”.
Disk Drive
The A5 Disk Drive can easily be removed from the A4 Processor assembly
without removing any of the instrument covers. The disk drive is attached to a
tray that is accessed from the rear panel by loosening one screw and pulling
the drive out of the processor assembly.
If the A4 Processor assembly is replaced, the existing A5 Disk Drive must be
transferred from the defective processor assembly to the replacement
assembly, there is typically no need to replace them together.
The A5 Disk Drive is field replaceable. See Chapter 17, “Replaceable Parts” for
the correct replacement part number.
A4A1 Disk Drive Interface Board
There may be situations where the A5 disk drive must be removed and inserted
many times, such as in a security sensitive environment. Therefore, the A4A1
Disk Drive Interface board can be replaced if connector wear is an issue. See
Chapter 17, “Replaceable Parts” for the correct replacement part number.
Front Panel Interface
The instrument USB is the electrical interface to the instrument front panel.
One of the USB ports on the host controller located on the A4 Processor
assembly is routed to the A1A2 Front Panel Interface board for this use. This
port is a High Speed USB 2.0 compliant port.
Graphics Controller
The entire graphics subsystem is contained within the instrument system
processor chipset. There are multiple outputs of the graphics controller that
are used by the instrument. One provides the LVDS video control to drive the
internal instrument LCD, one supplies the analog signals to the rear panel VGA
output, and one provide the display data to the rear panel DisplayPort
connector, which can be used to drive multiple external display types.

Keysight N9038A Specifications

General

Brand	Keysight
Model	N9038A
Category	Measuring Instruments
Language	English