Locking The Power Switch In The On Position; Cancelling The Power On Lock Function; Activating The Frequency Lock Function - Shure U Series User Manual

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Locking the Power Switch in the ON Position

To lock the power switch, press and hold the SET button, then press and hold the
MODE button. Hold both keys down until "PoL" (for power locked) is displayed, as
shown in Figure 42.
FIGURE 42
NOTE: When the Power On Lock function is activated, "–– ––" will flash on the trans-
mitter screen every 5 seconds when the transmitter power ON/OFF switch is in the
OFF position.

CANCELLING THE POWER ON LOCK FUNCTION

To cancel the Transmitter Power On Lock unction, press and hold the SET button,
then press and hold the MODE button. Keep both keys pressed down until "Po UL"
(for power unlocked) is displayed momentarily, as shown in Figure 43.The Transmit-
ter Power On Lock function can also be cacelled by removing the batteries.
FIGURE 43
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Activating the Frequency Lock Function

The Frequency Lock function prevents accidental frequency changes, and is par-
ticularly useful in preventing accidental or unauthorized changes. The lock function
is retained in memory, even if the transmitter is turned off and the batteries removed.
To activate the Frequency Lock function, proceed as follows:
1. Turn the transmitter power off.
2. Turn the power back on while holding down the SET button until the fuel gauge
on the transmitter is active. "Fr L" will appear momentarily, as shown in Figure 44,
until you release the SET button.
FIGURE 44
3. To verify that the frequency lock function is turned on, press the MODE or SET
button. If the lock function is turned on, "– –" will appear on the transmitter screen,
as shown in Figure 45.
FIGURE 45
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