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E4403B -- Cannot seem to control unit in manual mode

Question asked by swenner on Jul 14, 2014
Latest reply on Jul 14, 2014 by tabbott
Can anyone shed light on above subject:

We have an E4403B Spectrum Analyzer and we only get screen changes on the top row of buttons.  Once you push one of these buttons the screen changes to that menu but you can no longer make changes manually.  All other button pushes do not work.  The unit HOWEVER can be changed via the GPIB and software.  It appears that the unit got into a remote mode some how and is stuck.  We have powered the unit down, pulled power cord, etc. for a day BUT no avail.  Almost like a location was written to in memory.