820-00165 won't turn on if IO cable is connected.

[Aivaras]

820-00165 won't turn on if IO cable is connected.

Had liquid damage around smc and few shorted PPBUS_S5_HS_COMUTING_ISNS CAPS.

After cleaning liquid damage and replacing caps now only turn ons if IO cable isn't connected/.

If IO cable connected orange light is there.

 

[2informaticos]

Inspect LIO connector.
Try known good LIO board/connector.
Check for short or low resistance on all power rails which go to J9500; when it is connected.

 

[JohnB8812]

Sounds like you're not using an OEM 85 Watt Magsafe 2 adapter. Definitely also measure what 2informaticos was asking

 

[Aivaras]

Thank you guys. Works as it should it genuine charger. Can someone explain why it won't turn on with power supply(cable is from genuine 85w charger)

 

[2informaticos]

If you use Magsafe 1 with adapter 1 --> 2 can get weird issues, like the one encountered now.

 

[JohnB8812]

Yes using the adapter OR using an NON OEM charger causes lots of issues with 2015 machines for some reason. Always need OEM chargers for these no matter what

 

[2informaticos]

Handshake protocol on the latest Magsafe 2 machines is a bit different than the old one.
And Magsafe 1 cannot comply...