GT40USBDAC Q&A
Q1.ComputerdoesnotrecognizetheGT40
A1‐1.Notconnectedcorrectly
（RefertomanualandcheckiftheGT40isconnectedcorrectlytothecomputerviaUSBcable.）
A1‐2.ThereisaproblemwithaUSBHub
(ADLdoesnotrecommendthe
useofaHubwhenconnectingtheGT40toacomputer)
A1‐3.ComputerdoesnotrecognizetheGT40asboththeplaybackandrecordingUSBdev ice
（DisconnecttheUSBcableandre connectafter10seconds.IfitstilldoesnotrecognizetheGT40restart
thecomputer.）
Q2.Systemerror
occurswhenswitchingbetweensettingsontheGT40
A2.Switchingbetweensettingsduringplayback
（ThereisasmallpossibilityofanOSsystemerrorwhenswitchingbetweensettingsontheGT40duringplayback.
Avoidswitchingduringplayback.）
Q3.Thereisnosound
A3‐1.Thesoundhasbeenmuted
（Open
thevolumecontroltabonthecomputerandunselectmute.）
A3‐2.Volumeoutputsettingistoolow
（Openthevolumecontroltabonthecomputerandsetthevolumetomaximum.）
A3‐3.Anotherdeviceissetasthedefaultplaybackdevice
（OpentheSoundandAudio
DevicepropertiestabandselectUSBAudioDeviceGT40USBDACasdefault
playbackdevice.）
A3‐4.Thereisaproblemwiththeexternalamporspeakers
（ChecktheconnectionbetweenexternalcomponentsandtheGT40LINEOUTRCAjacks.）
A3‐5.Headphonesarepluggedintothe6.3mm
phonejackonthefrontpaneloftheGT40
（Whenheadphonesarepluggedin,therewillbenosignaloutputformtheLineOutjacks.）
Q4.Nosoundfromcomputerinternalspeakers
A4.USBdeviceissetasthedefaultforplayback
（WhentheGT40isselectedas
defaultaudiodeviceforplayback,therewillbenosoundfromthecomputer
speakerswhichisperfectlynormal.）
Q5.Nosoundthroughheadphones
A5‐1.ThevolumeissettoolowontheGT40
（AdjustthevolumeonthefrontoftheGT40totheappropriatelevel）
(WhenadjustingvolumelevelforheadphonestheLineOutRCAjack’svolumelevelisalsoadjusted)
A5‐2.TheGT40powerisnotswitchedon
（PushthepowerbuttonontheGT40frontpanel.Itwillshowasbluewhenswitchedon）
Q6.Unevensoundbalanceduringplayback
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