820-00165 PPBUS 8.19v no light

[drmacbookth]

Hello, I have a Macbook Air 2017 with no light and 8.19v on PPBUS. Some liquid around SMC. Replaced and rewired R5513 that had some corrosion under it. So far I have tried 5-6 different SMC with same result, 8.19v and no light. Is there another condition beside a bad SMC that can pull down the PPBUS to 8.19v? I have 3.44 on SMC_ONOFF_L.

 

[2informaticos]

Did you check SMC_RESET_L?
Also be sure to get 12MHz at Y5110.
If you don't have o-scope, at least check DC voltage at Y5110 pins.

 

[drmacbookth]

Damn been fixing macs since 2016 and overlooked SMC_RESET_L..... . R5100 was off and some corrosion on pin 1, replacing it fixed it. Thanks! The forum is so valuable even u been fixing for a while .