I haven’t done much board repair and this is my first time diving into things in a few years so I thought I’d ask and see if I’m thinking right before I go switching things out.
Background: 820-00239 MacBook Pro, No power, ~4.97 V in on charger, 0.07 amps.
I started with checking PP3V3_G3H and I have 3.4v. While doing that I noticed a hole (more of an indent) smashed in the board by F7000. F7000 appears to be the only component effected physically. Both sides of the fuse read 0V. So somewhere between PP3V3_G3H entering U7000 and PPVBAT_G3H_CHGR_REG entering F7000 there is a break down. All the power rails into U7000 appear to be working (as far as I understand), and most read the same voltage as coming in from the charger. However PBUS coming out of U7000 reads 0 V, so U7000 is my culprit? I just want to make sure I’m thinking this through right and not missing some other crucial part seen by someone who works on these more than me. Thanks in advance!
Also attached below is the page of the schematic I’m referring, as well as the board (side opposite to F7000).[document|35617]
I haven’t done much board repair and this is my first time diving into things in a few years so I thought I’d ask and see if I’m thinking right before I go switching things out.
Background: 820-00239 MacBook Pro, No power, ~4.97 V in on charger, 0.07 amps.
I started with checking PP3V3_G3H and I have 3.4v. While doing that I noticed a hole (more of an indent) smashed in the board by F7000. F7000 appears to be the only component effected physically. Both sides of the fuse read 0V. So somewhere between PP3V3_G3H entering U7000 and PPVBAT_G3H_CHGR_REG entering F7000 there is a break down. All the power rails into U7000 appear to be working (as far as I understand), and most read the same voltage as coming in from the charger. However PBUS coming out of U7000 reads 0 V, so U7000 is my culprit? I just want to make sure I’m thinking this through right and not missing some other crucial part seen by someone who works on these more than me. Thanks in advance!
Also attached below is the page of the schematic I’m referring, as well as the board (side opposite to F7000).[document|35617]
Hello!
I haven’t done much board repair and this is my first time diving into things in a few years so I thought I’d ask and see if I’m thinking right before I go switching things out.
Background: 820-00239 MacBook Pro, No power, ~4.97 V in on charger, 0.07 amps.
I started with checking PP3V3_G3H and I have 3.4v. While doing that I noticed a hole (more of an indent) smashed in the board by F7000. F7000 appears to be the only component effected physically. Both sides of the fuse read 0V. So somewhere between PP3V3_G3H entering U7000 and PPVBAT_G3H_CHGR_REG entering F7000 there is a break down. All the power rails into U7000 appear to be working (as far as I understand), and most read the same voltage as coming in from the charger. However PBUS coming out of U7000 reads 0 V, so U7000 is my culprit? I just want to make sure I’m thinking this through right and not missing some other crucial part seen by someone who works on these more than me. Thanks in advance!
Also attached below is the page of the schematic I’m referring, as well as the board (side opposite to F7000).[document|35617]
[image|3294637]