AUDIO TELEX AT - Operating Instructions; Power Switch

OPERATING
IN
STRUCTIONS
,,4T
SERIES
AMPLIFMRS
]
LII{IT
Thc
light
emiting
diode
designated
"Limit"
,
will
provide
the
user with
an
indication
of any ovcrload
contlition
of
the
amplitier :ening.
The
lamp
will normally
ilicker
occasionally RED
when
the
amplifier is
operating normally
. If
the lamp
flickers
RED
tbr lengthy
periods
or
glows
continuously
,
the
amplitier is
being
overdriven
by the incoming
prograrn
or
microphone.
if this
condition
is
combined
with
a
maximum
load
on the output
the amplifier will
shut
down
fbr
two seconds
and
then turn irelr
hack
on .
Should the
condition
still apply
,
the arnplifier
will
continue to cycle
off and
on until the
condition
is
removed.
This
is
a
feature
of
the amplifier
deriigned
to
protect
the amplifier
circuitr.v
and the speakers
connected
to the
output.
8 POWER
Thc
switch
designated
"Power",
turns the mains
power
to the
amplifier
"ON/OFF.
A lamp
will
glow
Red
to
indicate
tle
anplifier
is
fumed
orr.
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T-
--
l
r
F,)
A
,R
:
t-6j
pull
out drawer.
The
mains
cord must
be
indicated
above
the
IEC
connector
are the
1
THREE
PIN
IEc
MAINS
INLET
z4ol
120 vac
with inbuilt
fuse
in
a
removed
bef,ore
the
drawer
can
be
pultred
to
expose the
fuse. Note
the fuse ratings
correct AC fuse
ratings
fbr
240
VAC
operation.
2 DIRECT
OUTPUT TERMINAL
STRIP
counting left
to
right
:
C...
Common
connection
tbr low
impedance
ourputs
4.....
4
ohm
output
connection
(AT120
only
)
8..... 8
ohrn output
connection
C..... Common
connection for
constant voltage
outpuls
74....70
volt
output
100.. 100
volt
output
Spare Terminal
Spare
Terminal
[:--]
SWITCHED
OUTPUT TERMINAL
STRIP
counting left
to right:
6.....
100
volt
output
connections
for
speakcr
switch
6
5 100
volt
output
connections for
speaker
switch
5
4 100
volt
output
connections
for
speaker
switch 4
3
100
volt
output
connections for
speaker
switch
3
2
100
volt
output
connections
for
speaker
swirch
2
I 100
volt
output
connections lbr
speaker
switch
I
NOTE
I
For
model AT30
there
are
four
only switched
speaker
ou@ut
connections.
CONNECTIONS
(ne2)