Left Channel and Right Output Connectors
The rear panel of the TX8201 includes two male XLR output connectors. The output is an active balanced
isolated output for connection to a power amplifier. The maximum output is 1.5V RMS. Pin connections
are Pin 1 = Earth. Pin 2 = Active Positive (+). Pin 3 = Active Negative (-).
Note:
If an unbalanced output
is required, use a 600 Ohm matching transformer or use only Pin 2 and Earth. Do not short any of the
active outputs to earth.
Tape Output
Two RCA output connectors are included on the rear panel. These provide a line level record output from
the mixer. The tape output provides a maximum of 500mV into 10K ohms making it ideal for connection
to most standard tape recorders. This output is sourced before the master gain control and as such the tape
output level is not influenced by the operation of the master gain control.
Dual RCA Stereo Line Inputs (Ch 7 & 8)
The top connectors are for the Left channel auxiliary inputs while the bottom connectors are for the Right
channel auxiliary inputs. Reading from Left to Right across the rear panel, the connections are for auxiliary
inputs 8 and 7.
XLR Microphone/Line Inputs
Each XLR input is switchable to be either balanced mic or line (via an internal dip switch, the
location and setting of which is explained in the ‘Internal Adjustments’ section of this manual).
When set to mic level, the mic input sensitivity is 1mV ( for a 1 Volt output). When set to line
level, the input sensitivity is 330 mV (for a 1 Volt output). Pin connections are: pin #1-earth; pin #2-active
(high, +); pin #3-active (low, -). Phantom power of +15 volts is available on all 6 XLR inputs. An internal
phantom power ON-OFF switch is provided for each channel. The default setting is ON (See the ‘Internal
Adjustments’ section of this manual for more details).
Direct Outputs
A unique feature of the TX8201 is the individual direct output available for each of the first 6
channels. The direct outputs are accessed via balanced TRS 1/4” sockets for each channel. The
level of each output is 1 Volt (nominal). Internal jumpers (JP1) allow signal from any of the first
six channels to be disconnected from the main left/right outputs (See the ‘Internal Adjustments’ section of
this manual for more information). The direct outputs are adjustable to be pre or post the channel level
control. Factory default setting is post fader.
Vox Muting
Priority muting is provided for channels 1 and 2. Both channels have equal priority and will mute
channels 3-8 when signal is present. The muting function may be disabled by moving the jumper
labeled JP2 (located on the pcb behind the channel 8 volume control). ON and OFF positions are
clearly indicated on the pcb beside the jumper. The unit ships from the factory with muting enabled (JP2 -
OFF) – that’s right, OFF; it is a muting disable function, not a muting enable function. When channels 1
and 2 are disconnected from the main left/right outputs, the muting function is automatically disabled.
Tone Generator
A four tone generator is built into the TX8201. The tones available are Alert, Evacuate, Pre-
Announce and Bell. All four tones can be activated individually via rear panel contact closures.
All tones mute channels 3-8. Tones can be disabled from the direct outputs via an internal dip
switch (See the ‘Internal Adjustments’ section of this manual for more information). A trim pot (R104)
which is located on the board behind the left channel master output may be adjusted to vary the level of
tone generator output.
