consistently indicating red, then the mixer is being overdriven which will result in distortion. Avoid
operating the mixer with the red LED’s illuminated.
Rear Panel Features
AC Power Inlet
The 3 pin IEC power inlet is located on the left side of the rear panel and accepts a standard mains power
lead fitted with an IEC connector. The operating voltage is 115 VAC @ 60 Hz. The AC power voltage is
not
externally user adjustable but is factory preset. The inlet is equipped with an inbuilt AC fuse holder
fitted with a 125 mA slow blow fuse plus one spare. Power consumption is 7 VA.
Please ensure that the mains power cord is disconnected before attempting to check or
replace this fuse.
24 Volt DC Power Source Connection
Located to the top right of the IEC power inlet is a 2.1mm DC power socket which provides for the
connection of an external 24 VDC battery. This is ideal for systems where battery backup is required or for
applications where mains power is not available. The centre terminal post or pin is for connection to the
positive (+) terminal. The sleeve is for connection to the negative (-) terminal. The maximum DC current
drain is 350 mA
Euro Block Connector
The 7 pin euro connector located on the rear panel allows for the connection of an optional tone module.
The ATC5488 tone module is equipped with 4 tones and a common. The optional module would normally
be fitted inside the mixer with the activation wires and common all connected to the internal header for
easy external activation via switches or third party timers. The euro connector is not connected internally
when supplied from the factory.
Output Connector
The rear panel of the TX8000 includes a male XLR output connector. 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 700mV 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.
Microphone Inputs
The TX8000 includes eight female XLR inputs which accept 200 ohm balanced or unbalanced
microphones. An internal trim control is provided for each input (see the ‘Other Internal Adjustments’
section of this manual). Pin connections are Pin 1 = Earth. Pin 2 = Active Positive (+). Pin 3 = Active
Negative (-). Phantom power of +18v DC (internally defeatable) is provided.