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    User name gilman

    Log entry time 00:37:46 on October 9,1999

    Entry number 28008

    This entry is a followup to: 28005

    keyword=FPP front ch 1 U1,2,3 problem solved

    We looked at the FPP gas and it was fine, all chambers bubbling normally.

    We checked the LV anbd threshhold on the reeadout boards where there were problems, thinking some fuses mightbe bad, but all looked normal.

    We looked on the scope at the output of the level shifter board and
    saw signals from cosmics + noise on all the affected channels.

    We pushed all the connectors back in nicely, and certainly we now see
    in run 2173 oonline replay that all the low-efficiency channels look fine.

    Suspect poor contact on some cable, and pushing on connectors solved it.