Extron Electronics RAC 104 - Manual (Page 23)

RAC 104 • Installation and Operation
For example, if the treble on channel 1 is set to 6 and the
treble on channel 2 is set to 10, the unit will change
channel 2’s treble setting to 6 when the user ties them
together.
Channel 1 Channel 2
Treble before tie: 6 10
Treble after tie: 6 6
Volume, bass, treble, and mute adjustments can now be made
to both channels simultaneously. The user can continue to
adjust the gain settings independently using the SIS or the
Windows-based control program via the RS-232 connector (see
chapter 3 for more information).
Ties can also be made using the SIS or the Windows-based
control program (see chapter 3 for more information).
Cancelling a tie
To cancel a tie, press and release the channel selector button
again so that only one channel selector LED is on, then turn the
knob.
Ties can also be cancelled using the SIS or the Windows-based
control program (see chapter 3 for more information).
Resetting the RAC 104
To return the RAC 104 to its default settings, press and hold the
adjustment selector button for 10 seconds. All the LEDs will
light and then turn off. The default settings are:
Volume 70 (-30 dB)
Gain 0 dB
Bass 7 (0 dB)
Treble 7 (0 dB)
Any volume and tone limits are cancelled (see chapter 3 for
information on limits).
The unit can also be reset using the SIS or the Windows-based
control program (see chapter 3 for more information).
Locking the front panel
To prevent accidental changes to the controller settings, the
front panel controls can be locked using one of two executive
modes. The user turns the executive modes on and off using
either the SIS or the Windows-based control program via the
RS-232 connector (see chapter 3 for more information).
If the user presses a front panel button that is locked, the LED
corresponding to that button flashes three times.
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