4 Appendices66 Keysight U2722A/U2723A User’s GuideAppendix A: List of Self-Test Return CodesThe following table contains the list of codes you will obtain when performingself-test. The interpretation for each code is also provided.Table 4-1 List of system-related return codesReturn code Code descriptionChannel 1 Channel 2 Channel 3+0 Pass Pass Pass+1 Fail Source V/I Pass Pass+2 Fail Source Limit V/I Pass Pass+16 Pass Fail Source V/I Pass+17 Fail Source V/I Fail Source V/I Pass+18 Fail Source Limit V/I Fail Source V/I Pass+32 Pass Fail Source Limit V/I Pass+33 Fail Source V/I Fail Source Limit V/I Pass+34 Fail Source Limit V/I Fail Source Limit V/I Pass+256 Pass Pass Fail Source V/I+257 Fail Source V/I Pass Fail Source V/I+258 Fail Source Limit V/I Pass Fail Source V/I+272 Pass Fail Source V/I Fail Source V/I+273 Fail Source V/I Fail Source V/I Fail Source V/I+274 Fail Source Limit V/I Fail Source V/I Fail Source V/I+288 Pass Fail Source Limit V/I Fail Source V/I+289 Fail Source V/I Fail Source Limit V/I Fail Source V/I+290 Fail Source Limit V/I Fail Source Limit V/I Fail Source V/I+512 Pass Pass Fail Source Limit V/I+513 Fail Source V/I Pass Fail Source Limit V/I+514 Fail Source Limit V/I Pass Fail Source Limit V/I