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    User name V. Sulkosky

    Log entry time 14:07:25 on March 13, 2011

    Entry number 351562

    keyword=Escorted Access to Check T6 LHRS+BB Trigger

    I made an escorted access to check the missing T6 trigger (LHRS+E-plane).
    First I thought there was a bad output on the coincidence module for the 
    T3 (LHRS) trigger.  However when I had the coincidence module in "AND"
    mode, I could not see a coincidence even though I could see T3 and E-plane
    singles overlap on a scope.
    
    Eventually I traced the problem to bent pin on a 1 ns cable where the T3
    trigger is taken to form the coincidence between T3 and E-plane singles.
    
    I replaced the cable with a 2 ns cable, since I did not have another 1 ns
    cable handy.  This restored the T6 coincidence trigger.
    


    A copy of this log entry has been emailed to: zhanxh,doug,eip,orchen,igorko,nmuangma