33 Service Manual - Packard Bell -Easynote Lj65 Laptop Electrical Connector For example, pressing F1 may open help. Each program uses different function keys for different purposes. See the program documentation to find out more about the function key actions. System keys Press these colored keys in combination with the Fn key to perform specific actions. Navigation keys Press these keys to move the cursor to the beginning of a line, to the end of a line, up the page,[…]