Function Specific Troubleshooting - Keysight Technologies E4981A Service Manual

Function Specific Troubleshooting

If the E4981A exhibits a failure symptom that is related to a specific function or control
such as a front panel key control, display, data storage, remote control interface, external
trigger, isolate the trouble using the Function Specific Troubleshooting procedures
described below. The major functions of the E4981A and the troubleshooting procedure for
each function are shown in
Table 4-4 Major functions and troubleshooting procedures
Function
Front panel keys
LCD
Front USB port
External trigger input
LAN port
GPIB Interface
USB (USBTMC)
Interface
Handler interface
Scanner interface
Chapter 4
Table 4-4.
Description
All the E4981A functions can be set and controlled
via the front panel keys.
Almost all the information including the
measurement value, setup state, result data
processing, menu bar, softkey label and others are
indicated on the LCD.
The USB port is used to save data in a USB
memory.
The external trigger input terminal (BNC) on the
rear panel allows an external trigger source to be
used for measurement trigger.
The LAN interface port on the rear panel allows
the E4981A to be connected to 10/100 Base-T
Ethernet.
The GPIB compatibility allows the E4981A to be
operated as a talker/listener on IEEE 488 interface
bus.
Through this port, you can control the E4981A via
external controllers. It is equivalent to control via
GPIB.
The interface is for data exchange with an
automatic machine (handler) used on production
line.
The interface to connect a scanner to perform up to
128 sets of multi-channel correction and
measurements.
Troubleshooting
Function Specific Troubleshooting
Troubleshooting
Refer to "To Check the Front
Panel" on page 56.
Refer to "To Check the
LCD" on page 56.
Refer to "To Check the Front
USB port" on page
Refer to "To Check the
External Trigger Input" on
page 57.
Refer to "To Check the
LAN" on page 57.
Refer to "To Check the
GPIB" on page 59.
Refer to in "To Check the
USB (USBTMC) Interface"
on page 60.
Refer to in "To Check the
Handler Interface Function"
on page 60.
Refer to in "To Check the
Scanner Interface Function"
on page 64.
56.
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