Toshiba Satellite Pro L550 User Manual

User’s Manual

9-3

Troubleshooting

Record your observations so you can describe them in detail to your 

reseller, dealer or service provider.

This section discusses problems caused by your computer’s hardware or 

attached peripherals. Basic problems may occur in the following areas:

When the computer does not start properly, check the following items:

■

Self test

■

Power Sources

■

Power-on Password 

The problems may be caused by your software or disk. If you 

cannot load a software package, the media may be damaged 

or the program might be corrupted. In these instances try 

loading another copy of the software if possible.
If an error message appears while you are using a software 

package you should refer to the documentation supplied with 

it as this will usually include a problem-solving section or a 

summary of error messages.
Next, you should check any error messages against the 

operating system documentation.

If you cannot find a software problem, you should then check 

the setup and configuration of your hardware. First, run 

through the items in the preliminary checklist as described 

previously. Then, if you still cannot correct the problem, try to 

identify the source - the next section provides checklists for 

individual components and peripherals.

■

System start-up

■

Self test

■

Power 

■

Password

■

Keyboard

■

Internal display panel

■

Hard disk drive

■

ExpressCard

■

SD/SDHC memory card, 

miniSD/microSD Card

■

Memory Stick/Memory Stick PRO

■

MultiMediaCard

■

Pointing device

■

USB device

■

eSATA device

■

Memory expansion

■

Recovery Discs

■

Sound system

■

External monitor

■

Modem

■

LAN

■

Wireless LAN

■

Bluetooth

■

HDMI monitor output function

■

Video Playback