A2338 820-02020-11 no power

[hgoncalves]

Hi,
I have an A2338 820-02020-11 that had liquid contact, and has no power.
Om ampmetter it puls 5.16V and 0A.
I supose that I should start to check CC1/2 on CD3217, but I realy don't know where to start. Am I right? If any is damaged, can I replace it with one of other model board? JT700 is burnt. Can I replace it with one of other board model (don't have any board of this model)?

 

[2informaticos]

If you get 5V from charger, CC1/2 lines should be good.

The board is probably trash, after liquid damage.
You can check diode mode to ground on the coils, at least.

 

[hgoncalves]

Hi,
No big coil seams to be shorted. Diode reading seams normal.
However LT700 is burnt, and PPVOUT_LCDBKLT is shorted

 

[hgoncalves]

Hi,
I managed to power it on. It had the PPDCIN_USBC_AON area oxidated and after replacing some caps and cleaning it, now powers on again and boots to OS. However T2174 is missing. Should I jumper it?

Can I take the burnt JT700 and LT700 from other board model?

 

[2informaticos]

Be sure the trace of T2174 is not broken; in case the TP is in the middle.

You can take L/JT700 from different board, no problem.

 

[hgoncalves]

TKS