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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 LED appears green or yellow, with only the highest audio peaks causing
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
audio meter and the audio LED
to prevent overloads.
channel rf audio gain
dB
TV
MHz
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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
• menu: prevents access to menu items and IR sync (gain controls and power
switch remain active)
• power: disables power switch (gain and menu controls remain active)
To lock a receiver control:
1. Press the menu button to navigate to
the lock settings.
2. Use the arrow buttons to add or
remove the lock options shown next to
the lock icon.
3. Press enter to save the lock settings.
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
enter to confirm and save change.
1. To unlock gain or 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 enter to confirm and save
change.
Locking and Unlocking Transmitter Controls
The transmitter controls can be locked or unlocked by selecting On (locked) or
OFF (unlocked) from the transmitter lock menu.
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 menu button to navigate
to the lock settings.
2. Use the arrow buttons to select on.
3. Press enter to save. The lock icon
appears on the display to confirm
that the control locks are enabled.
To unlock the transmitter:
1. Press and hold the menu button until
OFF and the unlock icon appear on
the display.
2. Press enter to save changes.
OFF
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 Solutions
Err.001
Audio Compatibility Update transmitter and receiver firmware to the latest version.
Err.002
Encryption Mismatch between
Shure product lines
Set encryption to off for components from different Shure products lines, such as QLX-D and ULX-D.
Err.003
Encryption Mode Mismatch Perform an IR sync between the transmitter and receiver to clear the error.
Err.004
Band Mismatch Receiver and transmitter are operating in overlapping frequencies from different bands.
Err.005
Frequency Mismatch Receiver and transmitter are from bands that do not share compatible frequencies.
Err.006
No Frequencies Found Rescan, select a different group, or use WWB to find a frequency.
Err.007
Firmware Mismatch Update firmware on the transmitter and receiver.
Err.008
Shure SB900 battery runtime does
not appear on display
Check that battery is firmly installed into the battery compartment. If condition persists, replace the
battery.
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