PDF schematic for the FF4 button board, revision 1C final, about 76 KB in a RAR archive. The sheet covers the small daughterboard that carries the power button and related switches or indicators, connected to the mainboard by a cable. The name does not state the laptop model. Technicians use it to check the power-switch line and LED wiring, check the flex connector pinout, and tell a faulty button board apart from a mainboard that will not power on. Check the board marking matches.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @schematicslaptop. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 10 Nov 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 15 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.