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Shure Incorporated
20/31
Locking the Transmitter
Lock/Unlock Power (On)
Hold SET and MODE for four seconds or until the lock icon appears.
Lock/Unlock Frequency
Hold the SET button while powering on the transmitter.
Troubleshooting
No power:
Check battery and power supply connections and voltage. Check the power switch on the transmitter.
The LCD displays "E0 00" or similar code:
Exit master list mode by holding the SET button for ten seconds.