Haier schematic in PDF form, 8.65 MB, with a name that carries no model, chassis or board number; the index tags it Clevo, but the name itself only says Haier. The file size suggests a multi-page service drawing, likely for a TV or display board. Open it in a PDF viewer and identify the chassis from the title block, then confirm it matches the main board in hand before using it to trace power rails, the panel interface or the backlight drive. Without that check, readings may not match your board.
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 @datasheets1. 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.