First time dealing with one of these 2023 16" units, and the board model is 820-02917. No schematic available from what I can tell, but a somewhat similar one in 820-02918. I am going to reference certain chips using the 02918 schematic because it will at least let you know what I'm looking at:
Unit had liquid-damage to U5500/UF400/UF500 areas. Had to do a ton of precision cleaning since we don't have any parts for this model yet. Got everything cleaned up but had a few resistors with burned pads that we replaced fine, but without knowing where to check for continuity, hard to confirm there are no open lines. I am suspecting something amiss since we're getting super unusual USB-C meter readings: 4.69v with a 2.49a draw. Strange.
Does anyone know if these newer-style ACE controllers are hot-swappable, or are they still paired-off via ROMs like on the 820-01700 boards? We do have a 14" board that utilizes these newer ACE controllers, but don't want to go replacing them without knowing if we can. We also don't have a stencil for these yet, so replacing just one is going to be a headache, let alone multiple. Also, why specifically is UF500 under-filled and the others aren't? Is this the DFU-related controller by chance? Curious to see.
Where are people sourcing these controllers at the moment? Are we still limited to parts-boards? May end up calling this one and waiting until they're more common. Any insights appreciated!
Unit had liquid-damage to U5500/UF400/UF500 areas. Had to do a ton of precision cleaning since we don't have any parts for this model yet. Got everything cleaned up but had a few resistors with burned pads that we replaced fine, but without knowing where to check for continuity, hard to confirm there are no open lines. I am suspecting something amiss since we're getting super unusual USB-C meter readings: 4.69v with a 2.49a draw. Strange.
Does anyone know if these newer-style ACE controllers are hot-swappable, or are they still paired-off via ROMs like on the 820-01700 boards? We do have a 14" board that utilizes these newer ACE controllers, but don't want to go replacing them without knowing if we can. We also don't have a stencil for these yet, so replacing just one is going to be a headache, let alone multiple. Also, why specifically is UF500 under-filled and the others aren't? Is this the DFU-related controller by chance? Curious to see.
Where are people sourcing these controllers at the moment? Are we still limited to parts-boards? May end up calling this one and waiting until they're more common. Any insights appreciated!
