Shure Incorporated
24/34
Issue
Indicator Status
Solution
Charge or change transmitter battery.
Receiver LCD screen
off
Make sure AC adapter is securely plugged
into electrical outlet.
Make sure receiver is powered on.
Transmitter indicator
LED flashing red
Charge or change transmitter battery.
Transmitter plugged
into charger.
Disconnect transmitter from charger.
Audio artifacts or dropouts
rf LED flickering or off
Change receiver and transmitter to a differ
ent group and/or channel.
Identify nearby sources of interference (cell
phones, WiFi access points, signal proces
sor, etc...) and shutdown or remove source.
Charge or change transmitter battery.
Ensure that receiver and transmitter are po
sitioned within system parameters.
System must be set up within recommended
range and receiver kept away from metallic
surfaces.
Transmitter must be used in line of sight
from receiver for optimal sound.
Distortion
OL indicator appears on
receiver LCD
Reduce transmitter gain (see Gain Adjust
ment).
Transmitter and receiver link unsuccessful
Transmitter and receiver
LEDs flash to indicate
that linking started, but
the link fails
Update both components to firmware ver
sion 2.0 or greater. Download the Shure Up
date Utility application and follow the instruc
tions.
Sound level variations when switching to dif
ferent sources
N/A
Adjust transmitter gain as necessary (see
Gain Adjustment).
Receiver/transmitter won't turn off
Transmitter LED flash
ing rapidly
Controls locked. See Locking and Unlocking
Controls.
Receiver gain control cannot be adjusted
N/A
Check transmitter. Transmitter must be on to
enable gain changes.
Receiver controls cannot be adjusted
LK shown on receiver
display when buttons
are pressed
Controls locked. See Locking and Unlocking
Controls.
Transmitter ID function does not respond
Transmitter LED flashes
green 3 times
Controls locked. See Locking and Unlocking
Controls.
