HP ESA-L1500A, User'S And Calibration Manual

Page: 58 / 326

Chapter 3 57
Troubleshooting
Error Messages
EXT REF
Indicates that the frequency reference is being supplied by
an external 10 MHz source. (M)
EXT Reference in use
An attempt to perform a Timebase
alignment with an External Reference in use. (U)
FILE NOT FOUND
Indicates that the specified file could not be
loaded into spectrum analyzer memory or purged from memory
because the file name cannot be found. (U)
Freq corr off
Indicates that the Freq Correct selection if Off. (M)
Input is internal
Indicates that the 50 MHz osc selection is On.
With the 50 MHz oscillator On, the input is routed through an
internal signal path. (M)
INVALID AMPCOR: FREQ
For the AMPCOR command, the
frequency data must be entered in increasing order. See the
description for the AMPCOR programming command for more
information. (U)
INVALID CHECKSUM: USTATE
The user-defined state does not
follow the expected format. (U)
INVALID ENTER FORMAT
The enter format is not valid. See the
appropriate programming command description to determine the
correct format. (U)
INVALID FILE NAME <file name>
Indicates the specified file
name is invalid. A file name is invalid if there is no file name
specified or the file name is too long. See the description for the
SAVE programming command for more information. (U)
Invalid flatness data:_ _ _
A power up check determined an
error in the instrument’s flatness data. The 4-digit code may indicate
the type of error. Error codes are described in the spectrum
analyzer’s service guide. (H)
INVALID HP-IB ADRS/OPERATION
An HP-IB operation was
aborted due to an incorrect address or invalid operation. Check that
there is only one controller (the spectrum analyzer) connected to the
printer. (U)
INVALID HP-IB OPERATION REN TRUE
The HP-IB operation is not
allowed. (This is usually caused by trying to print when a controller
is on the interface bus with the spectrum analyzer.) To print to an
HP-IB printer from the spectrum analyzer, you must disconnect any
other controllers on the HP-IB. If you are using programming
commands to print, you can use an HP BASIC command instead of
disconnecting the controller. See the description for the PRINT
command for more information. (U)
INVALID ITEM:
Indicates an invalid parameter has been used in a
programming command. (U)