Before Contacting Us; The System Starts Up, But The Normal Measurement Screen Does Not Appear; Unstable Operation - Keysight E4990A Help Manual

E4990A Help
Do NOT defeat the earth-grounding protection by using an extension
•
cable, power cable, or autotransformer without a protective ground
conductor.

Before Contacting us

If you encounter the following problems during startup or operation of the
E4990A, in which initial registration of the Windows Operating System has
been properly performed, execute
Firmware revision.
The system starts up, but the normal measurement screen does not
appear
The system automatically shuts down immediately after the startup,
•
or the startup process stops.
The measurement screen appears, but "Power on test fail" or
•
"Calibration data lost" is displayed in the instrument
message/warning area against a red background in the lower-left
part of the screen. The system enters the service mode. (The
instrument status bar in the lower-right displays SVC in red).

Unstable Operation

The system hangs while the instrument is controlled from an external
•
PCs.
The blue screen appears and the system hangs.
•
The response is much slower than usual.
•
When execution of
indicates that failure may have occurred. Contact
contacts.
For other problems, refer to Troubleshooting.
14
system recovery
system recovery
and update the
does not result in normal operation, it
Agilent customer