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(07 Aug 2009,
Analisys result of
Substituted again board 10, crate 1. Rough visual inspection of bus does not reveal evident problems.
Start new sustained test at 10.00 till 14.30 was ok.
New hypothesys: "deep" or not insertion of the DSP board. "Deep" is worst and it was verified (view) in the capsens because the board (too long) start to open the contacts.
New substitution: replaced the board 10 of crate 1 with the original one adding a shim of 0.7 mm in the front panel in order to simulate the final solution.
System restarted with the sustained test at 14.45.
Mario noticed he substituted the wrongdsp board so the system was stopped, fixed and restart for test at 15.00. at 16.00 system stopped with same error (crate 1 board 10)
Mario swapped board 10 and board 9 of crate 1 in order to see if the problem follow the board or the position in the crate.
After the substitution the crate 5 initiate to be unrecheable (load dsp program but stucked when the code is inserted.) board 5 crate 5.
The board was substituted and the problem moved from board 5 to board 9.
the system got stuck for about one hour. after a reset, suddenly become working.
test started at 17.30 till 21.15 without any problem
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Topic revision: r6 - 07 Aug 2009,
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