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    User name Maruyama / Partridge

    Log entry time 14:10:40 on June 25, 2010

    Entry number 328179

    keyword=HV trip problem on S2m R isolated and fixed

    We investigated the HV trips on S2mR Channel 7. The HV supply (slot 12, channel 6) was tripping at ~-1500V with no load. Looks like some sort of internal breakdown in the supply.

    We plugged S2mR Channel 7 into an empty HV channel (slot 13, channel 10) and set the voltage for this channel to -1805, which matches the set point we found for the old HV channel (e.g., slot 12, channel 6)