(347) 552-2258 [email protected]

820-4924 No post. Not cycling.

bjf

bjf

Member
This board has all of the basic voltages but is not turning on. No sip signals. It has no pulse on 5V_S4. Has 3v3 on L7560. Has 3.3V on both sides of R1300/1/2/3. I've checked as much as I can think of. I've attached pre-ultrasonic pics. I've removed and resoldered all of the components in the spill area. I replaced U1900 and a few others that got hit harder just in case. Not sure where to go next.
 

Attachments

  • photo1434.jpg
    photo1434.jpg
    2.4 MB · Views: 0
  • photo1435.jpg
    photo1435.jpg
    2.1 MB · Views: 0
bjf

bjf

Member
No change after running a bunch of flux under the SMC. Would your next move be to pull it and reball it or is there something else I should try before that?
 
D

dukefawks

Administrator
Yeah pull and reball/replace. There was corrosion under there for sure. Of course check all resistors/traces in those 2 corrosion spots too.
 
You must log in or register to reply here.
Top