Lenovo IdeaCentre K3 User Guide

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Solving Problems
Follow these tips when troubleshooting your computer:
•	 If	you	added	or	removed	a	part	before	the	problem	started,	review	the	installation procedures to ensure that the part is correctly installed.
•	 If	a	peripheral	device	does	not	work,	ensure	that	the	device	is	properly	 connected.
•	 If	an	error	message	appears	on	the	screen,	write	down	the	exact	message.
  This message may help support personnel diagnose and fix the problem(s).
•	 If	an	error	message	occurs	in	a	program,	see	the	program’s	documentation.
  Note: The	procedures	in	this	document	were	written	for	the	Windows	
default view, so they may not apply if you set your Lenovo® computer to 
the	Windows	Classic	view.
4.1  Troubleshooting Display Problems
Problem: Blank screen or no image is displayed on the monitor.
Troubleshooting and problem resolution:
1. Check to see if the monitor has been turned on; if not, press the Power button.
2.  Check to see if the monitor power cord is loose; if so, plug the power cord 
securely into the monitor.
3.  Check to see if the signal cable to the monitor is securely connected to the 
connector on the computer graphics card; if not, shut down the computer 
then connect the signal cable of the monitor securely to the connector on the 
computer graphics card.
Problem: You need to change the display property settings.
Setting display background and icon properties:
1.  Right-click the desktop anywhere except over an icon, then select Personalize 
from the pop-up menu.
2.  From here, select the appropriate options to:
•	 Change	the	desktop	background
•	 Select	a	screen	saver
•	 Select	colors	and	appearance	options	for	icons	and	text
•	 Set	resolution	and	colors	in	the	Display	Settings	options 
						

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Problem: Ripple on screen.
Troubleshooting and problem resolution:
1. Check to see if any of the following devices are located less than one meter 
from the computer: refrigerators, electric fans, electric dryers, UPS systems, 
regulators, fluorescent lamps or other computers that may be generating 
magnetic interference.
2.  Move any interfering devices away from the computer.
3.  If the problem persists, contact Lenovo Service.
4.2  Troubleshooting Audio Problems
Problem: No sound from the integrated speakers.
Troubleshooting and problem resolution:
•	 Adjust	the	Windows	volume	control	—	double-click	the	speaker	icon	in	the	
lower-right corner of your screen. Ensure that the volume is turned up and the 
sound is not muted. Adjust the volume, bass, or treble controls to eliminate 
distortion.
•	 Reinstall	the	audio	driver.
•	 Disconnect	any	headphones	from	the	headphone	connector	—	sound	from	 the speakers is automatically disabled when headphones are connected to the 
computer’s side-panel headphone connector.
Problem: No sound from headphones.
Troubleshooting and problem resolution:
•	 Check	the	headphone	cable	connection	—	ensure	that	the	headphone	cable	is	 securely inserted into the headphone connector.
•	 Adjust	the	Windows	volume	control	—	click	or	double-click	the	speaker	icon	in	 the lower-right corner of your screen. Ensure that the volume is turned up and 
the sound is not muted.
4.3  Troubleshooting Software Problems
Problem: You are unable exit a running program normally.
Troubleshooting and problem resolution:
1. Open the Task Manager window by pressing Ctrl, Alt and Delete at the same 
time.
2.  Select the Application tab, select the problem program, then click the End 
Task button. 
						

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Problem: You need to install or uninstall a program.
Problem resolution:
During installation never abort the install process by powering the system off or
through other drastic means. This can cause system program disorder or even
failure during system initialization.
During the uninstall process, never directly delete the files or folders. This is 
harmful to the system, and might cause a system-wide malfunction.
Use the following procedure to properly uninstall programs:
1. Back up all documents and system settings related to the program before 
removing it.
2.  If the program has its own uninstaller, run it directly to uninstall the program.
3.  If the program does not have its own uninstaller, then select Control Panel from 
the Start menu.
4.  From the Control Panel, choose Programs and Functions.
5.  Find the applicable program from the Programs and Functions dialog box and 
then select Uninstall/Modify.
6.  Perform the instructions displayed to uninstall the software.
4.4  Troubleshooting Problems with Optical Drives and 
Hard Disks
Problem: The Optical drive is unable to read a CD/DVD.
Troubleshooting and problem resolution:
1. Check to determine if there is an optical drive icon in the resource manager 
of the operating system. If not, restart your computer. If there is still no icon, 
contact Lenovo Service. Otherwise, continue with the next step of this 
procedure.
2.  Confirm that the CD/DVD has been properly placed in the drive. If not, reload 
the CD or DVD. Otherwise, continue with the next step of this procedure.
3.  Check the specifications that came with your computer to confirm tha\
t this 
optical drive is capable of reading this type of CD or DVD.
4.  If the CD/DVD cannot be read, replace it with a known good CD/DVD such as 
one that was shipped with the computer.
5.  If the known good CD cannot be read, visually check the operating side of the 
CD/DVD for defects. 
						

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Problem: The capacity of the hard disk, as indicated by the system, is less than 
the nominal capacity.
Troubleshooting and problem resolution: For computers equipped with the 
OneKey Recovery feature, the system recovery feature needs to occupy some 
hard disk space. This may account for the apparent hard disk capacity deficit.
Further Technical Explanation: The nominal capacity of the hard disk is
expressed in the decimal system, 1000 bytes. But the actual hard disk capacity is
expressed in the binary system as 1024 bytes (For example, the nominal capa\
city
1G is 1000M, while the actual capacity 1G is 1024M).
The capacity of the hard disk shown in Windows can be calculated according to
the calculations in the following example:The nominal capacity of the hard disk is 40G, while its actual capacity 
should be: 40 x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 37G.
If the Service partition of 3G - 3  x  1000  x  1000  x  1000/(1024  x  1024  x  1024) 
= 2.79G is subtracted, the capacity of the hard disk shown in the system 
can be obtained.
The capacity of the hard disk as calculated using this method may be slightly
different from the actual capacity due to the rounding of totals.
4.5  Special considerations for troubleshooting Windows
Record the following information as it may be useful later when troubleshooting 
system problems:
1. The serial number of the software. The serial number was shipped with the 
computer and provided separately by the manufacturer. The Help Center is 
unable to retrieve this number.
2.  The drivers for this computer model only support the Windows 7 system.
3.  When you use the Windows Media Center to watch TV, be particularly attentive 
to the following:
•	 In	the	following	two	situations,	you	must	re-save	a	channel	list:
a. When you change your TV signal from digital to analog, your saved 
channel list for digital TV is deleted. When you want to watch digital T\
V 
again, you must create and save a new channel list.
b.  When you change your TV signal from analog to digital, your saved 
channel list for analog TV is deleted. When you want to watch analog TV \
again, you must create and save a new channel list. 
						

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•	 You	must	set	the	TV	tuner	input	signal	to	analog	before	you	can	watch	Teletext programming.
4.6  Performing Daily Maintenance Tasks
Cleaning the computer components
Because many of the computer components consist of sophisticated integra\
ted
circuit boards, it is very important to periodically clean the computer
to prevent dust buildup. The cleaning supplies you need to clean the
components include: a vacuum cleaner, a soft cotton cloth, clear water (preferably 
purified or distilled water) and cotton swabs.
 Attention: Before you clean your computer, disconnect the computer 
from the electrical outlet. Clean your computer with a soft cloth 
dampened with water. Do not use liquid or aerosol cleaners, which may 
contain flammable substances.
 Note: To avoid damaging the computer or display, do not spray cleaning 
solution directly onto the display. Only use products specifically designed 
for cleaning displays, and follow the instructions included with the product.
The following are general methods for cleaning the components:
•	 You	can	use	a	soft	cloth	to	remove	dust	on	the	surface	of	the	computer,	the	 monitor, the printer, the speakers and the mouse.
•	 You	can	use	a	vacuum	cleaner	to	clean	in	otherwise	inaccessible	corners.
•	 To	clean	the	keyboard	thoroughly,	shut	down	the	computer	and	scrub	it	gently	 with a wet cloth. Do not use the keyboard until it is dry.
Do not do any of the following:
•	 Allow	water	to	enter	the	computer.
•	 Use	a	heavily	dampened	cloth.
•	 Spray	water	directly	onto	the	surface	of	the	monitor	or	inside	the	computer.
LCD monitors should be cleaned daily. Use a dry cloth to brush dust from the 
monitor and keyboard every day. Keep all surfaces clean and free of grease stains.