If you are using an older LCD panel with a CCFL (Cold Cathode Fluorescent Lamp) backlight, this board may have a high-voltage inverter section on board. If you are using a modern LED backlight panel, the T.sk105a may not drive the LEDs directly; you might need a separate LED driver board or check if your specific revision has LED output pins.
Because "T.sk105a.03" is a generic manufacturing code (likely associated with Chinese manufacturers like V.ST or Y.P.S), there isn't a single manual available at a bookstore. However, this guide will walk you through understanding the schematic, pinouts, and how to troubleshoot it. T.sk105a.03 Schematic Diagram
Finding an authentic, uncorrupted schematic can be challenging. Here are reliable sources: If you are using an older LCD panel