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68-2164-50
Rev. B
09 13
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Setting the Tap Selector Switch (SM 26T Model Only)
For the SM 26T model, insert a small screwdriver through the upper left portion of the front grille, as
shown below, to adjust the tap selector switch to the desired setting.
Using the Security Key to Lock and Unlock the Speaker
Insert the key into the center of the speaker grille and turn the key, as needed, so that the speaker is in the unlocked position (see
the gure above). There are three small raised “dimples” (see the gure below) on the grille surface that surrounds the keyhole.
Repeat this procedure, but set the key to the locked position to lock the speaker.
ATTENTION: The key must be rotated to the unlocked position before the speaker is attached to the mounting plate.
Failure to place the speaker in the unlocked position will result in damage to the speaker lock mechanism should an
attempt be made to mount the speaker. By default, the SM 26 speaker is shipped unlocked.
Removing the Speaker from the Mounting Plate
To remove the speaker from the mounting plate, you must unlatch the
locking mechanism.
1. Insert the security key into the keyhole of the speaker grille (see the previous
section) and turn the key to the unlock position.
2. Remove the security key.
3. Apply pressure to the grille with your finger over the “dimpled” keyhole to
unlatch the speaker from the mounting plate while lifting up on the speaker
(see figure at right).
ATTENTION: To avoid damaging or scratching the grille nish, do not
use tools or sharp instruments to depress the unlocking mechanism
hidden behind the center of the grille.
Press to Release
Twist to
Lock/Unlock
Unlocked
Locked
8Ω
70
100
8Ω
Tap Indicator
for 70 Volt
Tap Indicator
for 100 Volt
Unlocked
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