15.20 DAQ histogramming & data transfer #1 enabled
      Merger configured, started, input paused
      Following DAQ GO nnaida9 data transfer 'X' nnaida19 histogramming 'H' disappear - see attachments 1-7

      Workaround suggested by https://elog.ph.ed.ac.uk/AIDA/230 appear not to work


16.25 Resolved data transfer issue
      nnaida9 producing SYNCs but merger data queue blocked
      rebooted aidas1

      nnaida19 histogramming issue remains

17:50 6 DSSD insalled

      From front to back of stack:
        
      DSSD 1 = 3131-9
           2 = 3058-25 (rotated 90deg w.r.t. other detectors - p-strips horizontal and n-strips vertical)
           3 = 2998-23
           4 = 3058-5
           5 = 3058-6
           6 = 3058-7

      HV mapping (-ve bias):

        DSSD     Braid      Core
          1     nnaida20   nnaida17
          2     nnaida19   nnaida18
          3     nnaida12   nnaida14
          4     nnaida11   nnaida13
          5     nnaida4    nnaida6
          6     nnaida3    nnaida5

18.55 Change ASIC settings 

      nnaida18, nnaida21 positive -> negative input
                         diode link threshold 0xca -> 0xbf
                         LED settings negative -> positive, threshold 7200 -> 9000

      nnaida19, nnaida24 negative -> positive input
                         diode link threshold 0x11 -> 0x23
                        LED settings positive -> negative, threshold 9000 -> 7200

      Saved new settings to DB key 2016May28-18.52.07
      Saved new DB key to Options