Dell Inspiron 4150 Owner's Manual - Page 65
External Keyboard Problems
UPC - 609525176278
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TO V E R I F Y T H A T T H E P R O BL E M I S W I T H T H E M O U S E, C H E C K T H E TOUCH PAD - 1 Turn off the computer. 2 Disconnect the mouse. 3 Turn on the computer. 4 At the Windows desktop, use the touch pad to move the cursor around, select an icon, and open it. If the touch pad operates correctly, the mouse may be defective. RE I N S T A L L T H E T O U C H P A D D R I V E R - See page 75. External Keyboard Problems C H E C K T H E K E Y B O A R D C A B L E - Shut down the computer (see page 38). Disconnect the keyboard cable and check it for damage. For PS/2 cables, check the cable connector for bent or broken pins. Firmly reconnect the cable. If you are using a keyboard extension cable, disconnect it and connect the keyboard directly to the computer. CHECK THE EXTERNAL KEYBOARD - 1 Turn off the computer, wait 1 minute, and turn it on again. 2 Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the boot routine. 3 From the Windows® desktop, click the Start button, point to Programs, point to Accessories, and click Notepad. 4 Type some characters on the external keyboard and verify that they appear on the display. If you cannot verify these steps, you may have a defective external keyboard. HINT: When you attach an external keyboard, the integrated keyboard remains fully functional. So l vi n g Pro b l em s 65