Quanta AT3 repair material in a 140 KB ZIP archive. The name carries only the Quanta project code with no revision or document type, so the contents must be checked after unpacking. A file this small often turns out to be a boardview, which opens in viewers such as OpenBoardView or FlexBV, or a short schematic extract. Confirm that AT3 and its revision appear on the motherboard silkscreen, then use it to find components, follow nets and probe test points when isolating a short.
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 @ITHINKHS. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip