Schematic in PDF form for the Gigabyte GA-H61M-S1 desktop motherboard, revision 2.2, with a PH marking in the name whose meaning is not stated. The H61 chipset places it in the LGA1155 generation of Intel micro-ATX boards. Use it to trace the CPU VRM, memory and chipset supply rails, follow standby and power-on signals, and find which circuit a shorted line belongs to. Opens in any PDF reader. Confirm the revision silkscreened on the PCB reads 2.2, since Gigabyte often reroutes parts between revisions.
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 @afsschematicfree. 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.