User manual DELL INSPIRON 1525

[. . . ] DellTM InspironTM 1525/1526 Owner's Manual Model PP29L w w w. c o m Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. ___________________ Information in this document is subject to change without notice. [. . . ] TIME- O F -D A Y N O T S E T -PLEASE R U N T H E S YS T E M S E T U P P R O G R A M -- The time or date stored in the system setup program does not match the system clock. Correct the settings for the Date and Time options (see "Using the System Setup Program" on page 171). TIMER C H I P C O U N T E R 2 F A I L E D -- A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnostics (see "Dell Diagnostics" on page 95). UNEXPECTED I N T E R R U P T I N P R O T E C T E D M O D E -- The keyboard controller may be malfunctioning, or a memory module may be loose. Run the System Memory tests and the Keyboard Controller test in the Dell Diagnostics (see "Dell Diagnostics" on page 95). X:\ IS NOT ACCESSIBLE. TH E D E V I C E I S N O T R E A D Y -- Insert a disk into the drive and try again. WA R N I N G : B A T T E R Y I S C R I T I C A L L Y L O W -- The battery is running out of charge. Replace the battery, or connect the computer to an electrical outlet; otherwise, activate hibernate mode or shut down the computer. 110 Troubleshooting ExpressCard Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. C H E C K T H E E X P R E S S C A R D -- Ensure that the ExpressCard is properly inserted into the connector. C H E C K T H A T T H E C A R D I S R E C O G N I Z E D B Y W I N D O W S -- Double-click the Safely Remove Hardware icon in the Windows taskbar. I F Y O U H A V E P R O B L E M S W I T H A DE L L -P R O V I D E D E X P R E S S C A R D -- Contact Dell (see "Contacting Dell" on page 160). Also, for Mobile Broadband (WWAN) ExpressCards, see "Mobile Broadband (Wireless Wide Area Network [WWAN])" on page 117. I F Y O U H A V E P R O B L E M S W I T H A N EX P R E S S C A R D N O T P R O V I D E D B Y D E L L -- Contact the ExpressCard manufacturer. IEEE 1394 Device Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. EN S U R E T H A T T H E IEEE 1394 D E V I C E I S R E C O G N I Z E D B Y W I N D O W S -- 1 Click Start Manager. Control PanelSystem and MaintenanceDevice NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to continue the desired action. If your IEEE 1394 device is listed, Windows recognizes the device. I F Y O U H A V E P R O B L E M S W I T H A DE L L -P R O V I D E D IEEE 1394 D E V I C E -- Contact Dell or the IEEE 1394 device manufacturer (see "Contacting Dell" on page 160). I F Y O U H A V E P R O B L E M S W I T H A N IEEE 1394 D E V I C E N O T P R O V I D E D B Y D E L L -- Contact Dell or the IEEE 1394 device manufacturer (see "Contacting Dell" on page 160). Ensure that the IEEE 1394 device is properly inserted into the connector. Troubleshooting 111 Keyboard Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Fill out the "Diagnostics Checklist" on page 159 as you perform the various checks. NOTE: Use the integrated keyboard when running the Dell Diagnostics or the system setup program. When you attach an external keyboard, the integrated keyboard remains fully functional. External Keyboard problems NOTE: When you attach an external keyboard, the integrated keyboard remains fully functional. 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, disconnect the keyboard cable and check it for damage, then 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 Shut down the computer, wait 1 minute, and then turn it on again. 2 Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the boot routine. All Programs 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. TO V E R I F Y T H A T T H E P R O B L E M I S W I T H T H E E X T E R N A L K E Y B O A R D , C H E C K T H E INTEGRATED KEYBOARD -- 1 Shut down the computer. 3 Turn on the computer. 112 Troubleshooting 4 From the Windows desktop, click Start AccessoriesNotepad. All Programs 5 Type some characters on the internal keyboard and verify that they appear on the display. If the characters appear now, but did not with the external keyboard, you may have a defective external keyboard. Contact Dell (see "Contacting Dell" on page 160). R U N T H E K E Y B O A R D D I A G N O S T I C S T E S T S -- Run the PC-AT Compatible Keyboards tests in the Dell Diagnostics (see "Dell Diagnostics" on page 95). If the tests indicate a defective external keyboard, contact Dell (see "Contacting Dell" on page 160). Unexpected characters DI S A B L E T H E N U M E R I C K E Y P A D -- Press <Num Lk> to disable the numeric keypad if numbers are displayed instead of letters. [. . . ] A common type of virus is a boot virus, which is stored in the boot sectors of a floppy disk. If the floppy disk is left in the drive when the computer is shut down and then turned on, the computer is infected when it reads the boot sectors of the floppy disk expecting to find the operating system. If the computer is infected, the boot virus may replicate itself onto all the floppy disks that are read or written in that computer until the virus is eradicated. V -- volt -- The measurement of electric potential or electromotive force. [. . . ]