820-00165-A NO Green light MacBook Air A1466

[zockysworkshop]

It is small water damage in the U7090 area. C7094 was missing i put another cap im getting PP3V42_G3H also SMC_BC_ACOK is present and SMC_RESET_L is 3.3v i think all signals are present for the computer to get green light bu i don't have green light. At some point while C7094 was missing i got green light but board wouldn't turn on after i put the C7094 i lost the green light also the Voltage that im getting is 7.3V that's P3V42G3H_BOOST, also the via for P3V42G3H_BOOST was damaged from pin 3 of U7090 to pin 1 of C7094. Any ideas???

 

[zockysworkshop]

All areas on the board are super clean just around U7090, so i just plug the same charger to my 15 inch macbook pro retina display and when i got green light i plug back to the board im working on and i get also green light but computer doesn't power if i plug the charger in my retina macbook and get orange light when i plug back to the air is stays orange but no fan spin

 

[zockysworkshop]

I have light on the charger now I'll continue troubleshooting why i don't have fan spin

 

[larossmann]

This is cheating, you should have light on the charger just plugging it into the air! Answer my questions.

 

[zockysworkshop]

PP5V_S5 is missing i check U7501 i have voltage only on Pin 23 VIN that's PPBUS_S5_HS_OTHER_ISNS and pin 22 P5VP3V3_VREG3 the enable signals on pins 12, 21 and 4 they are all missing and that leads me to the SMC am I right ?

 

[zockysworkshop]

PP5V_S5 is missing i check U7501 i have voltage only on Pin 23 VIN that's PPBUS_S5_HS_OTHER_ISNS and pin 22 P5VP3V3_VREG3 the enable signals on pins 12, 21 and 4 they are all missing and that leads me to the SMC am I right ?

 

[larossmann]

SMC_PM_G2_EN is required for PP5V_S5 and this does come from the SMC.

You still haven't answered my questions from my first post in this thread. I can't help you if you can't answer me. PP3V42_G3H ripple can kill the SMC but I am not jumping to this conclusion based on not having any information. Give me the information I asked for!!

 

[zockysworkshop]

SMC_PM_G2_EN is missing. You think smc reflow would solve the problem ?

 

[zockysworkshop]

I removed the filling around the SMC and i reflow the SMC that solve my problem thank you for your help Louis i appritiate it .