Lenovo S400, S405, S300 Troubleshooting Computer screen problems, Sound problems, Battery problems

Page 38

Chapter 5. Troubleshooting

Computer screen problems

The screen is blank.	•	Do the following:
		- If you are using the AC adapter, or using the battery, and
		the battery status indicator is on, press	to make the
		screen brighter.
		- If the power indicator is in blinking, press the power
		button to resume from the sleep mode.
		- If the problem persist, follow the solution in the following
		problem “The screen is unreadable or distorted.”
The screen is unreadable or	•	Make sure that:
distorted.		- The display device driver is installed correctly.
		- The screen resolution and color quality are correctly set.
		- The monitor type is correct.
Incorrect characters appear on	• Did you install the operating system or programs correctly?
the screen.		If they are installed and configured correctly, have the
		computer serviced.

Sound problems

No sound can be heard from	•	Make sure that:
the speaker even when the vol-		- The Mute function is off.
ume is turned up.		- The headphone jack is not used.
		- Speakers are selected as the playback device.

Battery problems

Your computer shuts down before the battery status indicator shows empty. -or-

Your computer operates after the battery status indicator shows empty.

The operating time for a fully charged battery is short.

The computer does not operate with a fully charged battery.

The battery does not charge.

•Discharge and recharge the battery.

•For details, see “Handling the battery” in Chapter 2.

•The surge protector in the battery might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again.

•For details, see “Handling the battery” in Chapter 2.

34

Image 38

Contents Lenovo IdeaPad S300/S400/S405 Regulatory Notice First Edition June Copyright Lenovo Contents Page Getting to know your computer Top viewGetting to know your computer Integrated TouchpadLeft-side view USB 2.0 port Right-side viewJack Front view Bottom view Learning the basics „ Connecting to the power„ Configuring the operating system „ Reading the manualsLearning the basics Putting your computer into sleep stateShutting down your computer „ Removing the battery pack „ Checking battery status„ Charging the battery „ Handling the battery Right-click area Using the touchpadLeft-click area Application Used for Starting and using Quick Notes„ Lenovo Intelligent Touchpad Starting Wall Paper Hotkeys „ Setting hotkey mode Removing a memory card „ Using memory cards not suppliedInserting a memory card „ Connecting USB devices „ Connecting Bluetooth enabled devices on select models Enabling Bluetooth communications on your computerSpecial keys and buttons „ Novo button a„ Lenovo Quick Start b System status indicators Power status indicator Battery status indicatorLearning the basics Symbol Indicator Meaning Status Securing your computer „ Using VeriFace„ Using passwords „ Exiting Lenovo Quick Start Using Lenovo Quick Start„ Starting Lenovo Quick Start „ Hardware connection Cable Connecting to the InternetWired connection „ Software configuration Connecting to the InternetHardware connection Software configurationWireless connection OneKey Rescue system OneKey Rescue system„ Introduction „ Creating a recovery discs OneKey Rescue systemInsert additional recordable discs when prompted Troubleshooting Frequently asked questionsTroubleshooting Where can I find warranty information?Troubleshooting Display problemsTroubleshooting Password problems Sleep or hibernation problemsBattery problems Troubleshooting Computer screen problemsSound problems OneKey Rescue system problems Troubleshooting Hard disk drive problemStartup problem Troubleshooting Other problems RespondTrademarks Page New World. New Thinking.TM