DOM MB V5 Diagnosis page

Board ID:

V5 00635

Source:

George Chao

Symptoms:                            

Post HASS, ADC 14 reads high.

Analyst(s):

G. Przybylski

Analysis Procedure(s):

Intermittantly, the output of U6 is observed to be 20V on power-up, even though the enable appears not to be asserted yet.
Suspect metastable state in U6. Replace U6.

Root cause:

Suspect U6.

Mitigation:

Replace U6. Test repeatedly.  

Disposition:

Potentially deployable, but if it was intermittant, I have reservations.

Any Other Information:

Traveler