14
ISSUE
SOLUTION
No Sound
Distorted Audio
Low audio output at the receiver
Signal instability: RF LED flickering
Unable to switch the channel
Multiple connect
• Check that the U4 Receiver's RF LED is lit.
• Check whether the device has a signal sent to the transmitter
• Check that the power switch is turned on for both the Transmitter and
the Receiver.
• Ensure that the U4 Transmitter and Receiver are on the same channel.
• The Receiver can be paired with one Transmitter at a time
• Check the Line/Aux setting at the transmitter and verify that the meter is not
reaching the overload
• Check Levels going in and out of the mixer. Verify that no distortion occurs in
each audio signal.
• Check receiver headphone output Volume level
• Check Transmitter mode Line/Aux.
• Check Check whether the device has enough signals level to the transmitter.
• See, “Tips and methods to improve wireless system performance page 13
• The channel switch locks after 15 seconds. Double-click the channel button
to unlock and reset.
• Use one transmitter can connect with more than 2 receivers.
TROUBLESHOOTING
