DOM MB Diagnosis page
Board ID:
V5 00565
Source:
Loading Vendor
Symptoms:
Cloudy or Blotchy Solder Mask
Returned by Arthur due to problematic TCal behavior which may have been
set-up related.
Analyst(s):
G. Przybylski
Analysis Procedure(s):
Loaded CPLD, Configuration Memory,
and Flash.
Board passes room temperature STF suite without errors.
No boot failures during over 400 reboot tests while sweeping the
temperatiure over the range of -55°C to +65°C.
Ran low temperature profile from -40°C to -75°
C. Results:
At -55°C, LC Loopback, ATWD A Ch 1 Pedestal noise all
fail.
At -60°C, LC Loopback, ATWD A Ch 1
Pedestal noise, and Baseline all fail.
At -65°C, LC Loopback, ATWD A Ch 1
Pedestal noise, and Baseline, and 8PE pulse, and ATWD A Ch 2 baseline
all fail.
At -70°C, LC Loopback, ATWD A Ch 1
Pedestal noise, and Baseline, and ATWD A Ch 2 baseline all fail.
At -75°C, LC Loopback, ATWD A Ch 1 Pedestal noise, and
baseline, and ATWD A Ch 2 baseline, and ATWD B Ch 1 baseline all
fail
Root cause:
Uncertain.
Mitigation:
Boards retained at LBNL;
Used for software testing
Disposition:
Retained at LBNL
Any Other Information:
Traveler August 15