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Wireless Keyboard Model No.: RK509C PDF created with FinePrint pdfFactory Pro trial version http://www.pdffactory.com...
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“ID setting button” on the keyboard to adjust the frequency. If you have SUNREX or JME wireless keyboard and setting instruction. Make sure you have press the “setting button” and “link button” on keyboard at the same time.
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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.
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