820-00244-A

[iFix]

Hi guys.

I have this board with no power issue. It had a short on PPBUS_G3H specifically U7210 was burned and I replaced it, but also before that as i was following the short i took out U7000 and then resoldered it. Now the short in gone but it's stuck on 5v. I have all the LDO lines on U3100(CD3215A)... Any ideas?

Thanks

 

[iFix]

Also the voltage on the gate of Q3100 is higher then PPVBUS_LIO(the source) Bad U3100?

 

[2informaticos]

Dead CPU for sure; overvoltage went trough U7210.

 

[iFix]

I replaced U3100 and Q3100 still same so as you said CPU probably Thanks

 

[it-solve]

if overvoltage went through short u7210 most likely you will have shorted these pins on your burned ic.


That can be probably a quick check for a dead cpu :/

 

[iFix]

Yes it was a dead CPU. I notified client Thanks for the help guys