Because this board is obsolete (end-of-life around 2015), HannStar does not list it on their public support site. However, mirror repositories do exist:
. Because it is an OEM component, finding a "manual" usually means searching for professional schematic diagrams service guides intended for technicians. Technical Overview & Specifications hannstar k mv 4 94v 0 manual
Found in PLCs and machine control boards, such as those from Technical Specifications Because this board is obsolete (end-of-life around 2015),