Lenovo Enhanced Performance USB Keyboard User Manual

3.OntheSpeedtab,movetheRepeatdelaysliderlefttoincreasetherepeatdelaytimeormovethe
Repeatratesliderlefttosetaslowerrepeatrate.
4.ClickOKtosavethesettings.
FortheWindows8.1operatingsystem:
1.GotoControlPanelbydoingoneofthefollowing:
•Fromthedesktop,movethepointertothetop-rightorbottom-rightcornerofthescreentodisplay
thecharms,andthenclickSettings➙ControlPanel.
•FromtheStartscreen,dothefollowing:
a.Clickthearrowiconinthebottom-leftcornerofthescreentogototheAppsscreen.
b.Scrolltotherightside,andclickControlPanelintheWindowsSystemsection.
2.DependingonyourControlPanelmode,dooneofthefollowing:
•ClickKeyboard.
•ClickHardwareandSound➙DevicesandPrinters.Then,right-clickthekeyboardiconand
selectKeyboardsettings.
3.OntheSpeedtab,movetheRepeatdelaysliderlefttoincreasetherepeatdelaytimeormovethe
Repeatratesliderlefttosetaslowerrepeatrate.
4.ClickOKtosavethesettings.
Problem:TheUSBperformanceisslow.
Solution:Donotactivateresource-intensivedevicesatthesametimebecauseUSBlimitationsmight
causeadegradationintheperformanceandspeedofthedevices.Thekeyboardisintendedforusewith
full-speedUSBdevices.High-speeddevices,suchasUSBscannersorUSBcamerascannotoperateat
theiroptimumperformancelevel.
Problem:AdevicedoesnotoperateafterIconnectittooneoftheUSBconnectors.
Solution:EnsurethatyouconnectonedevicetoaUSBconnectoronce.Ifadevicedoesnotwork,connect
ittotheotherUSBconnectortodetermineifthereisaproblemwithaUSBconnector.ThetwoUSB
connectorsarelow-powerconnectors.High-powerdevicesorotherUSBdevicescannotbeconnected
withtheseUSBconnectors.
Problem:Ihaveaproblemnotlistedinthischapter.
Solution:Forallotherproblemswithyourkeyboard,trytouninstallandtheninstallthedevicedriveragain.
Forinstructionsonhowtouninstallandinstallthedevicedriver,see“Uninstallingthedevicedriver”on
page7
and“Installingthedevicedriver”onpage7.
Chapter4.Troubleshooting15

Lenovo Enhanced Performance USB Keyboard Specifications

General

Mouse included	No
Depth	7.9 in mm
Width	18.3 in mm
Height	1.5 in mm
Internal	Yes
I/O ports	2 x USB
Compatibility	ThinkPad
Weight (imperial)	2.8 lbs
Compatible operating systems	- Microsoft Windows XP - Microsoft Windows 2000 - Microsoft Vista
Certification	- FCC Part 15, Class B - UL 1950 (E164844) - CSA C22.2 #0950-M89 (LR94275) - Canada ICES-003 Class B; Canada NMB-003, Class B) - CE (IEC 950, IEC 801-2, Level 3) - TUV-GS ZH1/618 (R9552884) - VCCI - C-Tick - MOC - BSMI - MIC
Keyboard layout	QWERTY
Device interface	USB
Connectivity technology	Wired
Operating temperature (T-T)	10 - 40 °C
Operating relative humidity (H-H)	8 - 80 %

Weight and Dimensions

Keyboard dimensions (WxDxH)	465 x 200 x 38 mm