I started in electronics before the advent of the internet and most solid state components, so getting datasheets and schematics was not easy for me. Today with manufactures making custom ICs and LCDs for everything from phones to video games, tinkers that salvage components from old electronics are faced with a new challenge. The schematics and datasheets for custom components are just not available. Even though these components can be obsolete by the time you are salvaging the parts you still can’t get the data sheets. This is where reverse engineering comes to play making schematics and datasheets with pinouts on desired components you can’t get datasheets for.