AUDIO TELEX TX8000 - Rear Panel Features; 3 Pin IEC AC Mains Power Inlet; Access Port; 24 Volt DC Power Supply Connection

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
-t-