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    User name V. Sulkosky

    Log entry time 11:13:17 on September 08, 2008

    Entry number 242943

    This entry is a followup to: 242871

    keyword=Replaced 1877 TDC in ROC 3, Slot 16

    The 1877 TDC in ROC 3 Slot 16 has continued to have problems responding to
    inquiries. I contacted RadCon and obtained permission to swap out the
    board with a replacement from the Counting House cabinet. The old board
    was taken to the radiological area near the Hall entrance to be surveyed
    by RadCon.

    I did not replace the exact module. The removed module was a TDC1877,
    whereas the replacement is a TDC1877S. After replacing the module, we
    reloaded the download parameters for ROC3. Then we tested the 1877S with
    Bob's TDC test code. The module appears to be working, but I will keep an
    eye on it to make sure there are no further problems.

    A copy of this log entry has been emailed to: rom@jlab.org,kalyan@jlab.org,ycwang@jlab.org