Macbook pro 14'' A2442

[LozinMust]

Hello guys,

I have an A2442 (820-02098) logic board with no visible liquid damage that had both CD3217B12 and ELC180 chips blown. After removing them, there were no shorts on the board but I still wasn't getting 20V in, so I suppose all the CD3217 are necessary to negociate 20V. As far as I can tell, the NAND chips are not shorted (I measured all the caps around them and didn't find a short), so I think that just replacing both chips should be enough to bring it back to life. Unfortunately, I don't have a spare board, but I can find CD3217 chips taken from A2442 boards on Aliexpress that should work, but couldn't find the ELC180 chips for that board. Would any ELC180 chip taken from a different model work on the A2442?

[Pedro147]

Hello guys,

I have an A2442 (820-02098) logic board with no visible liquid damage that had both CD3217B12 and ELC180 chips blown.

Can you please explain what the ELC180 chip is, because searching the schematic of this board yields no results at all. Thanks

[mon2]

TPS62180

https://www.ti.com/lit/ds/symlink/tp...n%252Ftps62180

[anhbanxoi]

https://www.youtube.com/watch?v=CAGnMR1aVuE

[reformatt]

Another repeated engineering failure from Apple on what are very expensive laptops. Just like long screw damage on the iPhones.

This is just built in obsolescence at it's finest. What a nightmare with the CD3217's!

[mon2]

Amazing video! Learned a great deal. Lemon design...again to use these underrated components for the power delivery support in the BOM.

[Pedro147]

TPS62180

Thanks, so the one that blows up NANDS on 2018 and later intel machines 😀. Shame Apple shame.

Yes iBoff Mat's video is very good

Amazing video! Learned a great deal. Lemon design...again to use these underrated components for the power delivery support in the BOM.

Yet they use a vastly better regulator for the two left hand USBC ports, but use TPS62180 on the right port because it's cheaper