JUNO FrontRow - Page 40

38
Tower will not ‘wake up’ from standby mode
• Volume level on auxiliary audio device is set too low.
• Makesuremicrophoneisonandworkingcorrectly.
Tower won’t turn on (LCD does not turn on)
•Verifythatthepowersupplyispluggedintoboththereceiverandaworkingwalloutlet.
• VerifytheTowerpowerswitchison.
• Testwithanotherpowersupply.
’Dead spots’ or
microphone crackling/noise
• VerifythatyouarenotblockingeithertheemittersonthemicrophoneorthesensoratthetopoftheJunoTower.
• Ifreceptionisinterruptedornoisywhenfacingacertaindirection,installanadditionalsensorinthatareaoftheroomor
adjust VoiceChoice settings.
•Ifusingmorethanonemicrophone,verifythattheyarenotonthesamechannel.
•Theremaybe“noisy”electricalwiring.InstallanAClinefilter.
Feedback (squealing)
• 
Lower the Microphone Volume control(s) on the Tower.
• Positionthemicrophoneclosertomouth.
• VerifythattheMusicAudioInoptionisnotcheckedintheMicrophoneVolumescreen.
Weak or no output from speaker(s)
•  Increase t he Master, Device or Microphone Volume control(s) on the Tower.
• Positionthemicrophoneclosertomouth.
• Verifythatthemicrophoneisonandnotmuted.
High- or low-pitched whine or hum coming through Tower speakers
•  There may be a ground loop with the system. Install a ground loop isolator.
• Theremaybe“noisy”electricalwiring.InstallanAClinefilter.
I hear static coming from the loudspeakers on the Tower.
• Make sure the guidelines on page 2 have been followed.
•TrytoidentifythesourceoftheproblembydisconnectingotherdevicesfromtheclassroomPConeatatime.Once
the problem is identified, re-connect the other devices except for the suspect device and verify the performance is
maintained.
•Re-connectthesuspectdevicetoadifferentportontheclassroomPC,ifpossible.IfconnectedtoaUSBhub,bypass
if possible. Verify that the AC power connected to the suspect device is connected to a good AC mains outlet.
•Identifyonthetowerwhichconnectioniscouplingtheinterference.Isittheaudioconnections,theUSBconnection,
or both?
•VerifythatthecomputerisconnectedtoEarthGround;doestheACpowercordhave3prongsor2?Ifthepower
cord only has 2 prongs then adding an Earth Ground type power supply may help. Please contact Frontrow for further
assistance.
•DetermineifanothersourceofIRinterferencemaybepresentintheroom.Possiblecausesarecertaintypesof
infrared motion sensors, infrared based pointing devices used for some projectors, and certain types of direct view
displays (flat panel TV’s, direct view smart boards).
• A cable isolation device may be required to solve the interference problem. Please contact Frontrow for further assistance.