7. PoWer Switch: The switch marked "Power" turns AC mains power'On' and 'Ofl to the TX8000. When the switch is in the
"On" position, a red neon will glow in the body of the switch. If the TX8000 is connected lo a24 volt DC supply, this switch will
not effect the operation of the TX8000 from the DC supply. If both AC and DC are connected, then the TX8000 will continue tc
operate normally when this switch is tumed 'OfP. The DC supply needs to be disconnected from the rear panel to completely 'turn
off the TX8000.
Rear Panel
l.
Features ofthe rear panel are as follows:
3 Pin IEC AC MainS POwer lnlet The operating voltage is 240 VAC @ 50 Hz or 110 VAC @ 60 Hz. The AC power
voltage level is not externally user adjustable but is factory pre-set. The inlet is equipped with an inbuilt AC fuse holder fitted with a
I Amp fuse plus a spare. Power consumption is 5 VA. I Please ensure that the mains power cord is disconnected beforr
attempting to check or replace this fuse.
ACC9SS POft This port is to allow for external cable egress for accessories such as the ATC5488 tone generator.
24 Volt DC Power Supply Connection: DC connection is via this 2.1mm socket with + (hich) on the centre pin and -
(low) on the outer pin. When DC is connected to these terminals the TX8000 will continue to operate regardless of the position o1
the AC power switch on the front panel. To turn offDC power to the TX8000, remove the connecting cables from these two posts.
The maximum DC current drain is 350 mA
+. MaSter Output Gonnectiofl] This is an active balanced XLR connection with a nominal level of 1.5 volts @ 600 ohms.
The pin connections are; pin #l-earth; pin #2-active (high, +); pin #3-active (low, ).
s. Dual RCA Sockets For Output To A Tape Recorderl Nominal 700mV @ tOK ohms. The rape output is
summed to mono and is connected before the master output level control so the tape output level is not affected by adjustments tc
the master output level control.
0. Active Balanced, XLR Sockets For The Microphone lnputs: with an input sensitivity of 0.6mv @200
ohms (see the 'Other lnternal Adjustments' section on the last page of this manual for details about the trim level control available
for each channel). Pin connections are: pin #l-earth; pin #2-active (high, +); pin #3-active (low, -). Phantom power of +18 volts is
available on all microphone inputs. An intemal on-offlink will switch the phantom power'on' or'ofl; the default setting is'on'.
See the 'Other Internal Adjustrnents' section of this manual for more details. Reading from left to right across the rear panel, the
connection are for microphone inputs 8, 7,6,5,4,3,2, & I respectively.
z. Dual RCA Sockets ForThe Auxiliary lnputsl Summedtoamonobusswithaninputsensitivityof 50mv-500mv
@ 47K ohms for input channels 1-6 only (see the 'Other lnternal Adjustments' section on the last page of this manual for details
about the trim level control available for each channel). Reading from left to right across the rear panel, the connection are for
auxiliary inputs 6, 5,4,3,2, & I respectively.
More information over the page 3
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