MCM 105 timeline
History of MCM 105
- ?-May-99: arrival at LANL, visually inspected
- ?-May-99: at LANL, glue output cable to MCM
- ?-May-99: sent to Pace to install surface mount components
- ?-May-99: visual inspection, no problems reported.
- 12-Jul-99: at LANL,
failed MCM QA test
(5th block of 32 channels dead).
- 16-Jul-99: visual inspection, then surface mount caps removed, short did
not go away.
- 5/6-Aug-99: repeat MCM QA,
failed -- 32 dead channels (always 3FF)
.
- 6-Aug-99: probe surface mount components, no problems seen
- 11-Aug-99: sent to Pace to have 4 surface mount caps replaced.
- 19-Aug-99: repeat MCM QA:
failed again, 32 dead channels (ADC problem)
.
John Sullivan
updated 15-Sep-1999