ON (See the 'Intemal Adjustrnents' section of this manual for more details). Reading from left to right across the rear panel, th
connection for the XLR mic/line inputs are 6, 5,4,3,2, & I respectively.
Direct Outputs. A unique feature of the TX820l is the individual direct output available for each of the first 6 channels. Th
direct outputs are accessed via balanced TRS l/4" sockets for each channel. The level of each output is 1 Volt (nominal). lntemr
jumpers (JPl) allow signal from any of the fust six channels to be disconnected from the main leff/right oueuts (See the'Intemi
Adjustments' section of this manual for more information).
VOX MUtin$. Priority muting is provided for channels I and2. Both channels have equal priority and will mute channels 3-8 whe
signal is present. The muting function may be disabled by moving the jumper labeled JP2 (located on the pcb behind the channel
volume control). ON and OFF positions are clearly indicated on the pcb beside the jumper. The unit ships from the factory with mutin
enabled (JP2 -OFF) - that's right, OFF; it is a muting disable function, not a muting enable frrnction. When channels I and 2 ar
disconnected from the main leff/right ouputs, the muting frrnction is automatically disabled.
TOng GgngfatOf. A four tone generator is built into the TX820l. The tones available are Alert, Evacuate, Pre-Announce an
Bell. All four tones can be activated individually via rear panel contact closures. All tones mute channels 3-8. Tones can be disable
from the direct outputs via an internal dip switch (See the 'Internal Adjustnents' section of this manual for more information). A trir
pot (R104) which is located on the board behind the left channel master output may be adjusted to vary the level of tone generatc
output.
lnternal Adjustments
g The following adjustments involve access to the inside of the TX8201. Adjustment should only be attempted by
qualifred technician. Always turn offthe AC power and remove the AC power cord before attempting to access the inside of th
TX820r
Master Left/Right and Direct Out Assignment. A jumper labeled JPI is provided for each of the first 6 channels. Th
jumpers are lqcated near the front of the unit. When in the ON position, signal from that channel is fed to both the master outputs an
the direct outputs. When the switch is in the OFF position, signal from that channel is fed to the direct line level output only.
Mic/Line Switch for Channels 1-6. A four position dip switch is located on the main board behind each input. To ser
channel for microphone level, set switches I ard2 (MIC) to the ON position. To set a channel for line level, set switches I and 2 to th
OFF position. The unit ships from the faciory set to mic level.
Tone Generator to Direct Output Defeat Switch. Sigrral from the tone generator can be removed from each direc
output via switch # 4 (TG) on the internal dip switch per channel. When in the ON position, the tones (when activated) are fed to th
corresponding direct output as well as the master Lefl/Right outputs. When the switch #4 is set to the OFF position, the tones are onl
present at the Master I€ft/Right outputs. A trim pot (R104) which is located on the board behind the left channel master ouput may b
adjusted to vary the level oftone generator output.
Phantom Power Defeat Each of the )(LR inputs has access to +l5v DC phantom power. Phantom power is selected vi
switch # 3 (PP) on the internal dip switches mentioned above. When switch # 3 is in the ON position, +l5v phantom power is availabl
on the XLR input. Care should be taken to disable phantom power before connecting any unbalanced or line source. The factory defau)
position is with phantom power set to the ON position.
MUting Defeat. The muting firnction can be disabled by moving the jumper labeled JP2 (located behind channel 8 volum
control). In the ON position muting is disabled, in the OFF position muting is enabled (go figure!). The unit ships from the factory wit
muting enabled, ie the jumper is set to the OFF position. When channels I and 2 are removed from the main leff/right output, th
muting frrnction is automatically disabled.
Looking for something worthy to connect to the inputs and outputs of your new TX8201? Well, please call you
nearest Audio Telex Communications office for referral to your closest authorised dealer or for more informatiot
on the full selection of our compatible sound system products.
