- Lenovo Personal Computer User's Guide

2.Runthediagnosticprogramstoensureyourcomputerisoperatingcorrectly.

3.Reinstallthenewhardwareoptionorsoftwarefollowingthemanufacturer'sinstructions.

Selecttheproblemyourcomputerisexperiencingfromthefollowinglist:

•“Audioproblems”onpage55

•“CDproblems”onpage56

•“DVDproblems”onpage57

•“Intermittentproblems”onpage59

•“Keyboard,mouse,orpointingdeviceproblems”onpage59

•“Monitorproblems”onpage61

•“Networkingproblems”onpage62

•“Optionproblems”onpage65

•“Performanceandlockupproblems”onpage66

•“Printerproblems”onpage67

•“Serialportproblems”onpage67

•“Softwareproblems”onpage68

•“USBproblems”onpage69

Audioproblems

Selectyoursymptomfromthefollowinglist:

•“NoaudioinWindows”onpage55

•“AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive”

onpage56

•“Soundcomesfromoneexternalspeakeronly”onpage56

•“NoaudioinDOSapplicationsorgames”onpage56

NoaudioinWindows

Symptom:NoaudioinWindows

Actions:

•IfyouareusingpoweredexternalspeakersthathaveanOn/Offcontrol,verifythattheOn/Offcontrolis

settotheOnpositionandthespeakerpowercableisconnectedtoaproperlygrounded,functionalac

electricaloutlet.

•Ifyourexternalspeakershaveavolumecontrol,verifythatthevolumecontrolisnotsettoolow.

•Double-clickthespeakericonintheWindowsnoticationarea.Amastervolume-controlwindowopens.

VerifythattheMutesettingsarenotcheckedandnoneofthevolumesettingsissettoolow.

•Somemodelshaveafrontaudiopanelyoucanusetoadjustvolume.Ifyouhaveafrontaudiopanel,

verifythatthevolumeisnotsettoolow.

•Verifythatyourexternalspeakers(andheadphones,ifused)areconnectedtothecorrectaudioconnector

onthecomputer.Mostspeakercablesarecolor-codedtomatchtheconnector.

Note:Whenexternal-speakerorheadphonecablesareattachedtotheaudioconnector,theinternal

speaker,ifpresent,isdisabled.Inmostcases,ifanaudioadapterisinstalledinoneoftheexpansionslots,

theaudiofunctionbuiltintothesystemboardisdisabled;usetheaudiojacksontheadapter.

Chapter10.Troubleshootinganddiagnostics55