Archive for an X101H mainboard, revision R1.0, according to the MB-R10 part of the file name. The RAR is 1.12 MB, a size that fits a schematic PDF or a combined schematic and boardview set, though the contents are not listed. Extract and inspect it, then use the drawings to trace power rails, check charger and voltage regulator circuits, and locate test points. Make sure the revision silkscreened on the PCB is 1.0, since later revisions may move or change components.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.