DOM MB V5 687 Diagnosis page

Board ID:

V5 000687

Source:

George Chao

Symptoms:                            

In STF at room temperature:ATWD A tests fail. (Not a  clock waveform flat problem)

Analyst(s):

G. Przybylski

Analysis Procedure(s):

DAC Control voltages OK. Chip A comparator bias current excessive; possible ESD damage.

Root cause:

Probably ESD damage to ATWD chip U48.

Mitigation:

Replace chip.

Disposition:

Mainstream

Any Other Information:


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