HP Presario 1900 Presario 1900 Series Maintenance and Service Guide - Page 89
Troubleshooting Without Diagnostics
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Maintenance & Service Guide Presario 1900 Series Models: 1900T, 1905, 1906, 1910, 1915, 1919, 1920, 1922, 1925, 1926, 1927, 1928, 1929, and 1930 Before You Begin Removal Sequence Product Description Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations Index Troubleshooting 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/Battery gauge CD/DVD drive Diskette/Diskette drive Display Hard drive Hardware Installation Memory PC Card Power Printer Touch Pad Keyboard/Numeric keypad Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis. 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. s Run Computer Setup after connecting external devices. s Verify that all required device drivers are installed. s Verify that all required changes have been made to the CONFIG.SYS file. s Verify that all required changes have been made to the AUTOEXEC.BAT file. s Verify that all printer drivers have been installed for each application.