A1466 820-00165-A no power

[hgoncalves]

Hi,

I have an A1466 820-00165-A with no power.

Client said it stoped working over night.

It has green light, no fan spin and puls 0.2A from PSU.

C7500/03 are burnt, and the pads are also burnt (gone). PPBUS_S5_HS_OTHER_ISNS test pad is also missing.

PPBUS_S5_HS_OTHER_ISNS = 8.56V on U7501 pin 23

P5VP3V3_VREG3 = 4.3V on U7501 pin 22

Can you help?

 

[2informaticos]

Be sure to rebuild the traces correctly.
Did you resolder C7503?

Post U7501 basic voltages; 23, 22, 12, 13, 29, 21.

 

[hgoncalves]

It was a bad trace rebuild.

TKS!