Wireless Keyboard Model No.: RK509C PDF created with FinePrint pdfFactory Pro trial version http://www.pdffactory.
Maintain the Keyboard Trackball cleaning If the product have trackball device, when the cursor skip or move abnormally, Clean the ball that is inside trackball. 1.Remove the retainer ring to remove the ball. On the bottom of the trackball, press in the direction of the Open arrow imprinted on the retainer ring cover. 2.Wipe the ball with a clean, lint-free cloth, then blow carefully into the ball-cage to dislodge dust and lint. Look for a build-up of dirt on the rubber roller(s) inside the ball-cage. 3.
Cursor don’t move smoothly •Clean the ball and the ball cage if your mouse have this device. •For the wireless device, try to change the receiver position. It may be caused by the long distance between receiver and trackball or mouse. Also may caused by PC monitor( or big metal barrier) that will interference the receiver. It also may be caused by low power battery. Check the battery according to steps mentioned before. You also can reset the link between mouse/trackball and receiver.
