PDF schematic for the USB daughterboard of Quanta project FF4, filed under main board code DA0FF4MB6E1 and marked R1C final. It covers the small USB board only, showing port power switching, the data lines and the connector that links it to the motherboard. It is useful when a port is dead or shorting, or when tracing the 5V supply and over-current protection. Check the revision on your daughterboard before relying on part values, and use the main FF4 schematic for the motherboard side.
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 | 12 Aug 2023 | 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.