RAR archive of 838 KB labelled for the HP Pavilion dv4 with an AMD platform. Beyond the model and processor maker, the name gives no board number, revision or list of contents. The dv4 was produced in several Intel and AMD variants on different ODM boards, so identification matters. Read the board number printed on the PCB and compare it with the documents inside before use. Schematic material like this lets a technician trace rails, find test points and isolate faults such as no power or no charge.
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 @IT_SERVICE_WORLD. 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.