820-2879 turning on, green light, no orange not charging.

[BCN_Techs]

Sorry, i mean U7000 not U7200. It was liquid damage that area.

R7051/52 are ok with continuity, R7050 too.

 

[BCN_Techs]

it detects battery and works from battery, also detecting charger, but doesnt charge.

 

[JohnB8812]

So your problem is pins 17/18 is it 2.9 ohms or millions still? If all check good, then your problem is the ISL it seems.

 

[BCN_Techs]

Changed it again ( third time) and still not connected magsafe but yes, it is going to millions ohms.

 

[JohnB8812]

So one of the few has to be true above there is no way all the resistors are ok and the traces. That's literally not possible unless you're measuring the wrong spot.

 

[BCN_Techs]

will check it again tomorrow. May be I missed some traces but Resistor are ok.

 

[BCN_Techs]

Something strange is happening. PPDCIN_G3H_INRUSH is going up to 36 V when magsafe is connected and i connect the battery without booting logic board. :S Q7080 recieves 20V and gies 36V. IS that the problem?

 

[2informaticos]

Did you try other multimeter?

Why you do NOT do what we ask to do???
Solve R7051/52 issue!!!
If resistors are OK, then rebuild corroded traces...

 

[JohnB8812]

What voltage on PPBUS_G3H currently charger only?

 

[BCN_Techs]

Solved. Changins ISL. Seems it was burning every time i put new one while there was damaged trace. Thank you very much

 

[JohnB8812]

Nicely done!