DOM MB V5 Diagnosis page

Board ID:

V5 000415

Source:

George Chao

Symptoms:                            

All ATWD pulser tests failed; All fADC pulser tests failed.

Analyst(s):

G. Przybylski

Analysis Procedure(s):

STF test confirmed failure.
Triggar signal at U35-5 OK.   Missing DAC output signal at R208.
11 1023 writeDAC fails to change U28-19 voltage.  

Root cause:

Faulty IC...

Mitigation:

Replace faulty IC

Disposition:

Test, and mainstream

Any Other Information:


Traveler