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Receiver Gain Adjustment
The gain control sets the overall signal level for the system. The default gain level is 12 dB and the available gain
range is -18 to 42 dB, in 1 dB increments.
Set the gain to a level where the
audio
the LED to occasionally turn red and engage the limiter. Reduce the gain if there is audible distortion of the audio.
From the receiver home screen, use the arrow buttons to increase or decrease the gain:
• A single button press adjusts the gain in 1 dB increments
• Press and hold the button for larger adjustments
Test the transmitter at performance levels when adjusting the gain. Monitor the
to prevent overloads.
Control Lock Options for the Receiver and Transmitter
Control lock options are available for both the receiver and the transmitter to protect against accidental or unauthorized changes. Locks can be directly set from the
component menu, or remotely set from WWB6. To maintain protection, controls remain locked when the transmitter is turned off and turned on.
Locking and Unlocking the Receiver Controls
The receiver has the following control lock options which can be used
separately or in any combination:
•
gain:
locks the arrow buttons to prevent changes to the audio gain settings
•
prevents access to menu items and IR sync (gain controls and power
menu:
switch remain active)
•
power:
disables power switch (gain and menu controls remain active)
To lock a receiver control:
1. Press the
button to navigate to
menu
the lock settings.
2. Use the arrow buttons to add or
remove the lock options shown next to
the lock icon.
3. Press
to save the lock settings.
enter
menu
gain
enter
Error Codes and Solutions
Error codes are generated when the receiver detects a condition that can potentially affect system performance.
If an error is displayed on the receiver, use the following table to identify the problem and find the corresponding solution.
Error Code
Description
Audio Compatibility
Err.001
Encryption Mismatch between
Err.002
Shure product lines
Encryption Mode Mismatch
Err.003
Band Mismatch
Err.004
Frequency Mismatch
Err.005
No Frequencies Found
Err.006
Firmware Mismatch
Err.007
Shure SB900 battery runtime does
Err.008
not appear on display
LED appears green or yellow, with only the highest audio peaks causing
To unlock a receiver:
Tip: To unlock the menu and clear
all locks, press and hold the
menu
button while in the home screen
until the unlock icon appears. Press
to confirm and save change.
enter
1. To unlock
or
gain
power
settings, navigate to the lock
settings by pressing the
menu
button.
2. Press the arrow buttons to de-
select a lock option.
3. Press
to confirm and save
enter
change.
Solutions
Update transmitter and receiver firmware to the latest version.
Set encryption to off for components from different Shure products lines, such as QLX-D and ULX-D.
Perform an IR sync between the transmitter and receiver to clear the error.
Receiver and transmitter are operating in overlapping frequencies from different bands.
Receiver and transmitter are from bands that do not share compatible frequencies.
Rescan, select a different group, or use WWB to find a frequency.
Update firmware on the transmitter and receiver.
Check that battery is firmly installed into the battery compartment. If condition persists, replace the
battery.
meter and the
LED
audio
audio
Locking and Unlocking Transmitter Controls
The transmitter controls can be locked or unlocked by selecting
(unlocked) from the transmitter lock menu.
OFF
If an attempt is made to access a locked control, the lock icon will flash,
indicating that the transmitter controls are locked.
To set a transmitter lock:
1. Press the
button to navigate
menu
to the lock settings.
2. Use the arrow buttons to select
3. Press
to save. The lock icon
enter
appears on the display to confirm
that the control locks are enabled.
To unlock the transmitter:
1. Press and hold the
OFF
and the unlock icon appear on
the display.
2. Press
enter
to save changes.
TV
MHz
hr
mn
dB
channel
rf
audio
gain
.
on
menu
button until
OFF
(locked) or
On
19
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