LED Display VU Meter
The first LED indicates whether the unit is switched on. The remainder of the LED display is set in decibel graduations
from -21 dB to +3 dB and indicates the level at the output of the mixer. For normal operation the LED’s should glow green
and modulate with level variations from the input program. If the LED’s are 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 240 VAC @ 50 Hz (115 VAC @ 60 Hz with factory modification). 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 1 amp 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
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.
M IC 6
M IC 5
M IC 4
M IC 3
M IC 1
M IC 2
LINE 6
LINE 5
LINE 4
LINE 3
LINE 2
LINE 1
M IC 7
M IC 8
LINE OUT
TAPE OUT
TX80 00 -2
+24V
