Keysight E4990A - Before Contacting us

E4990A Help
14
• 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 system recovery and update the
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 system recovery does not result in normal operation, it
indicates that failure may have occurred. Contact Agilent customer
contacts.
For other problems, refer to Troubleshooting.