9-3
TROUBLESHOOTING
Hardware If you cannot find a software problem, check your hard-
ware. First run through the items in the preliminary
checklist above. If you still cannot correct the problem, try
to identify the source. The next section provides checklists
for individual components and peripherals.
Hardware and system checklist
This section discusses problems caused by your computer’s hardware or attached
peripherals. Basic problems may occur in the following areas:
❖❖
❖❖
❖System start-up ❖❖
❖❖
❖PC card
❖❖
❖❖
❖Self test ❖❖
❖❖
❖Infrared port
❖❖
❖❖
❖Power ❖❖
❖❖
❖Pointing device
❖❖
❖❖
❖Password ❖❖
❖❖
❖USB
❖❖
❖❖
❖Keyboard ❖❖
❖❖
❖Memory expansion
❖❖
❖❖
❖LCD panel ❖❖
❖❖
❖Sound system
❖❖
❖❖
❖Hard disk drive ❖❖
❖❖
❖Monitor
❖❖
❖❖
❖CD-RW/DVD-ROM drive ❖❖
❖❖
❖Modem
❖❖
❖❖
❖DVD-R/-RW drive ❖❖
❖❖
❖LAN
❖❖
❖❖
❖DVD Multi drive ❖❖
❖❖
❖Wireless LAN
❖❖
❖❖
❖Diskette drive ❖❖
❖❖
❖TV output signal
❖❖
❖❖
❖SD card ❖❖
❖❖
❖Printer

System start-up

When the computer does not start properly, check the following items:
❖❖
❖❖
❖Self Test
❖❖
❖❖
❖Power Sources
❖❖
❖❖
❖Power-on Password
Hardware and system checklist