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Shure Incorporated
19/39
Issue
Indicator Sta
tus
Solution
Charge or change transmitter battery.
Receiver dis
play off
Make sure AC adapter is securely plugged into electrical outlet.
Make sure receiver is powered on.
Transmitter in
dicator LED
flashing red
Charge or change transmitter battery.
Transmitter
plugged into
charger.
Disconnect transmitter from charger.
Audio artifacts or dropouts
RF LED flicker
ing or off
Change receiver and transmitter to a different group and/or channel.
Identify nearby sources of interference (cell phones, Wi-Fi access
points, signal processor, etc.) and shut down or remove source.
Charge or change transmitter battery.
Ensure that receiver and transmitter are positioned 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 ap
pears on receiv
er display
Reduce transmitter gain.
Transmitter and receiver link
unsuccessful
Transmitter and
receiver LEDs
flash to indicate
that linking start
ed, but the link
fails
Update both components to the latest firmware version.
Sound level variations when
switching to different sources
N/A Adjust transmitter gain as necessary.
Receiver/transmitter won't turn
off
Transmitter LED
flashing rapidly
Controls locked.
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 re
ceiver display
when buttons
are pressed
Controls locked.
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