Small 186 KB PDF schematic for the earphone and charging daughterboard used in E14 and E15 machines. No vendor, generation or board number is given in the name. A sheet like this lets you follow the headphone jack wiring, the charging port path and the cable connector back to the main board. Use it when audio drops out or the adapter input looks dead at the daughterboard. Check the board markings against the schematic, because the E14 and E15 lines span several generations.
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 @boardviews_schematics. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.