B-1 Introduction - Anritsu MS2024A/MS2026A User Manual

Appendix B — Error Messages

B-1 Introduction

This appendix provides a list of information and error messages that could be displayed on
the VNA Master. If any error condition persists, then contact your local Anritsu Service
Center.
B-2 Self Test or Application Self Test Error Messages
ADC Self Test FAILED
The Analog to Digital converter failed to return an answer. Insure that the battery level is
adequate for operation or that the temperature is within acceptable limits. Reset to factory
defaults with either Factory Defaults, ESC+ON, or MASTER RESET, System+ON. Caution:
Use of MASTER RESET, System+ON, will erase all user saved setups and measurement
traces and return the unit to a fully Factory Default condition. If the error persists, then
contact your Anritsu Service Center.
DDC FAILED
The Digital Down Converter failed to return a value. Insure that the battery level is adequate
for operation or that temperature is within acceptable limits. Reset to factory defaults with
either Factory Defaults, ESC+ON, or MASTER RESET, System+ON. Caution: Use of
MASTER RESET, System+ON, will erase all user saved setups and measurement traces and
return the unit to a fully Factory Default condition. If the error persists, then contact your
Anritsu Service Center.
Lock Test FAILED
One or more Phase Lock Loops Failed to properly achieve Lock Status. Insure that the
battery level is adequate for operation or that temperature is within acceptable limits. Reset
to factory defaults with either Factory Defaults, ESC+ON, or MASTER RESET, System+ON.
Caution: Use of MASTER RESET, System+ON, will erase all user saved setups and
measurement traces and return the unit to a fully Factory Default condition. If the error
persists, then contact your Anritsu Service Center.
Mixer Saturation: Increase Attenuation or Mixer Overdrive FAILED
Too much power applied with too little Attenuation. Increase attenuation. Sometimes even
out of band frequencies may be present that would cause a Mixer Overdrive Error. In highly
rich RF environments it may be necessary to add an external band pass filter to reduce
unwanted interference. See the accessories section for a list available band pass filters from
Anritsu. Out of band frequencies can often be detected by increasing the SPAN to maximum
in peak detect mode of operation. Another resolution may be to Reset to factory defaults with
MS20xxA VNA Master UG 10580-00166 Rev. C B-1