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    User name V. Sulkosky

    Log entry time 16:28:26 on August 27, 2008

    Entry number 242638

    This entry is a followup to: 242637

    keyword=S1 TDC Problem Fixed(?)

    The problem with the S1 width was traced to the ECL Programmable Fanout
    in the first Camac crate in slot # 4. This module was redundant and not
    really needed. Bob suggested to bypass this module. Instead the ribbon
    cable for the S1 TDC is coming from a LeCroy 4518 delay module.

    With bypassing the ECL fanout, I now see a signal from the PEC delay box,
    the output of which goes to the 1875 TDC in ROC 4.

    Since Bob is currently working on the scaler setup for Transversity, the
    trigger supervisor is currently offline. Hence, I will have to probably
    wait until tomorrow to verify that S1 has TDC signals from cosmics.