Function Specific Troubleshooting - Keysight E4980A Service Manual

Troubleshooting

Function Specific Troubleshooting

Function Specific Troubleshooting
If the E4980A/ E4980AL 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 E4980A/ E4980AL and the troubleshooting procedure for each
function are shown in
Table 4-3 Major functions and troubleshooting procedures
Function
Front panel keys
LCD display
Front USB port
External trigger input
LAN port
GPIB Interface
USB (USBTMC) Interface
Handler interface
(Option E4980A-201)
Scanner interface
(Option E4980A-301)
Keysight E4980A/E4980AL Precision LCR Meter
Table
Description
All the E4980A/ E4980AL 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 display.
The USB port is used to save data in a USB
memory. The LED for USB lights up while
accessing the 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 E4980A/ E4980AL to be connected to 10/100
Base-T Ethernet.
The GPIB compatibility allows the E4980A/
E4980AL to be operated as a talker/listener on
IEEE 488 interface bus.
Through this port, you can control the E4980A/
E4980AL 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.
4-3.
Troubleshooting
Refer to "To Check the
Front Panel" on
page 48.
Refer to "To Check the
LCD" on page 48.
Refer to "To Check the
Front USB port" on
page 49.
Refer to "To Check the
External Trigger Input"
on page 49.
Refer to "To Check the
LAN" on page 50.
Refer to "To Check the
GPIB" on page 52.
Refer to in "To Check the
USB (USBTMC)
Interface Card" on
page 52.
Refer to in "To Check the
Handler Interface
Function (Option 201
only)" on page 52.
Refer to in "To Check the
Scanner Interface
Function (Option 301
only)" on page 57.
47