Samsung service archive for the SM-J700 series, the Galaxy J7, packed as a 9.15 MB RAR file. The exact regional variant suffix and board revision are not given in the name, so confirm them inside the documents. Packs of this size usually contain schematic pages and component placement drawings for tracing supply rails, checking the charging and USB circuit and locating shorted capacitors. Open the archive with 7-Zip or WinRAR and make sure the variant shown matches the phone model label before following the diagrams.
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 @Schematic_mobile_iran. 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.