HP Presario 17XL Presario NA1700XL Series Maintenance and Service Guide - Page 63

Presario 1700 Series Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361, XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373, XL374, XL375, XL376, XL377, and XL378 Troubleshooting without Diagnostics This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of common messages that may be displayed on the screen. The following pages contain troubleshooting information on: Audio Battery CD or DVD Drive Diskette Drive Display Hard Drive Hardware Installation Memory PC Card Power Printer TouchPad Keyboard/Numeric Keypad Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the tables to avoid a misdiagnosis. Å WARNING: To avoid a potential shock hazard during troubleshooting procedures, disconnect all power sources before removing the keyboard cover or the display bezel. Before Replacing Parts Verify that cables are connected properly to the suspected defective parts. • Run Computer Setup after connecting external devices. • Verify that all required device drivers are installed. • Verify that all required changes have been made to the CONFIG.SYS file. • Verify that all required changes have been made to the AUTOEXEC.BAT file. • Verify that all printer drivers have been installed for each application.