Archive linked to the DV1000 notebook series with the CT6 code, a 957 KB zip. The name does not reveal the exact file type inside, so it may contain a BIOS image, schematic or related service files; open it and check. CT6 looks like a board or project designation, and since the DV1000 had several board variants, matching it to your unit matters. If firmware is included, flash it to the BIOS chip with a programmer after backing up the original; if a diagram, use it to trace power rails and locate 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 @schematicslaptop. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.