Category Hub · Apple Logic Boards
Apple MacBook Repair Guides
About this Category
Apple MacBook logic board repair requires working at the rail level: PPBUS_G3H, the S5 standby group, and the S0 sequencer chain. Every guide here targets a specific board number and schematic set. Start with the always-on rail before probing any IC.
All Guides
Level 3 Repair Guide
MacBook Pro A1502 / 820-3476 / 820-4924 — Level 3 Repair Guide
Level 3 repair guide for MacBook Pro A1502 Retina 13-inch (2013–2015). PPBUS_G3H, PP3V42_G3H, ISL6259, schematics 820-3476 and 820…
Level 3 Repair Guide
MacBook Air A1466 / 820-00165 — Level 3 Repair Guide
Expert repair guide for MacBook Air A1466 13-inch (2015-2017). PP3V42_G3H, PPBUS_G3H, ISL6259 diagnostics, 820-00165 schematics, i…
Level 3 Repair Guide
MacBook Pro A1278 / 820-3115 — Level 3 Repair Guide
Expert repair guide for MacBook Pro A1278 13-inch Mid 2012. ISL6259, PPBUS_G3H 12.56V, Intel Ivy Bridge diagnostics, 820-3115 sche…