ETI Sound Systems, INC ACT-1515X(F) - Manual (Page 5)

0/7%2
02/4%#4
,)-)4
3)'.!,
%!24(
'2/5.$
/&&
/.
,)&4
,%6%,
-!8
-).
CAUTIO
N
RISK O
F ELECTRIC SHO
CK
DO
NO
T OPEN
0
2
/
&
%
3
3
)/
.
!
,
"
1000-WA
TT A
CTIVE
FULL-RANGE SY
STEM
A
CT
-1515X
0/7%2
"

(5.4).'4
/.
!2+
).054
/54054
7
!2.).'
O
REDUCE
THE
RISK
OF
ELECTRICAL
SHOCK
DO
NOT
EXPOSE
THIS
EQUIPMENT
TO
RAIN
OR
MOISTURE
$O
NOT
REMOVE
AMPLIFIER

4HERE
ARE
NO
USER
SER
VICEABLE
PARTS
INSIDE
2EFER
ALL
SER
VICING
TO
AUTHORIZED
PERSONNEL #!54)/.
ONLY
WITH
THE
SAME
TYPE
FUSE
AND
RATING
$ISCONNECT
SUPPLY
CORD
BEFORE
CHANGING
6
!#
&53%

!#
&53%
£
У О
{ x
И
З
n
™
£ä
££
NUMBERS
IN
THIS
SECTION
REFER
TO
THE
NUMBERED
CONTROLS
OPPOSITE
1)
POWER
INDICA
TOR
: This
LED
indicates
that
the
amp
is
powered
on
normally
, and
should
be
capable
of
producing
an
au
-
dio
signal
in
concert
with
the
attached
speakers.
If
this
light
and
the
signal
light
(#4)
are
both
lit,
yet
no
sound
is
present,
there
is
a fault
condition,
possibly
blown
loudspeakers.
If
this
light
is
on
but
the
signal
light
(#4)
is
un-lit,
this
indicates
that
there
is
no
signal
present
at
the
input
of
the
amplifier
, or
the
amplifier
input
section
is
damaged.
2)
PROTECT
: This
Amber
LED
turns
on
when
there
is
a
fault
condition
in
the
system
causing
circuitr
y
to
engage
in
order
to
protect
the
amplifier
and
prevent
it
from
damaging
itself
and/
or
the
attached
speaker(s).
The
most
common
cause
of
this
is
running
the
amplifier
at
or
near
its
maximum
output
level
for
a
ver
y long
time.
If
protection
is
engaged
because
of
overheating,
the
best
course
of
action
is
to
turn
down
the
level
control
on
the
amplifier
for
long
enough
(10-15
minutes)
to
allow
it
to
cool
off.
After
this
time
if
the
amp
no
longer
turns
on,
it
should
be
turned
off
for
10
seconds
and
then
turned
on
again.
If
it
still
does
not
operate,
contact
your
authorized
ser
vice
provider
or
B-52
Pro-Audio.
3)
LIMIT
:
This
LED
indicates
the
signal
input
is
high
enough
to
drive
the
amplifier
into
compression.
Compression
is
the
artful
limiting
of
the
signal
volume
at
the
input
stages,
to
prevent
the
other
wise
gross
distortions
that
result
from
driving
the
power
amplification
beyond
its
design
limits.
4)
SIGNAL:
This
LED
indicates
the
presence
of
audio
at
the
input
stage
of
the
amplifier
. If
this
light
is
not
lit
the
sound
will
be
ver
y
low
or
nonexistant.
5)
LE
vEL
C
ONTROL
:
Sets
the
volume
of
the
ACT
-1515X(F)
without
influencing
the
level
at
the
output
XLR
send.
6)
OUTPUT
:
This
connector
is
shorted
to
the
INPUT
allowing
daisy
chaining
of
the
input
signal.
Therefore
you
do
not
need
to
y-cable
out
of
your
mixer
or
audio
device
to
get
an
addi
-
tional
full
range
signal(s)
to
another
active
system
nearby
your
ACT
-1515X(F)
speaker
system.
Use
this
connector
to
“daisy
chain”
multiple
systems
together
. (See
diagram
on
page
6
for
details) 7)
INPUTS
:
This
XLR
connector
accepts
a
balanced
input
signal
cable.
Balanced
means
the
signal
is
referred
to
a
ground
whose
voltage
is
always
centered
between
the
voltage
present
on
pins
2
and
3.
The
wiring
conforms
to
the
Audio
Engineering
Society
standard
where
Pin
2
is
(+)
or
hot;
Pin
3
is
(-)
or
cold;
and
Pin
1
is
the
Shield
or
ground.
8)
EAR
TH
GROUND:
DO
NOT
DEFEA
T THE
EAR
TH
GROUND
IF
AN
ELECTRICAL
STORM
IS
IMMINENT!!
Use
the
feature
only
with
great
caution.
Defeating
the
Earth
ground
may
in
some
instances
reduce
or
eliminate
hum
due
to
unavoidable
ground
loops.
It
also
disconnects
the
amplifier
panel
from
the
third
prong
of
the
AC
cable.
That
prong
will
lessen
the
chance
of
lethal
voltages
being
present
on
the
amplifier
panel
should
there
be
a
lightning
strike
or
other
catastrophic
failure
on
the
AC
mains
power
line.
Lifting
the
Earth
ground
means
a
person
in
contact
with
the
am
-
plifier
panel
in
such
an
event
has
a
greater
likelyhood
of
dying
in
the
event
of
such
a
catastrophic
fault.
DO
NOT
LIFT
THE
EAR
TH
GROUND
UNLESS
YOU
CAN
ASSURE
NO
ONE
WILL
COME
INTO
CONT
ACT
WITH
THE
AMPLIFIER
PANEL
DURING
USE.
9)
POWER
ON/OFF
SWITCH
:
Turns
on
the
AC
mains
power
and
your
ACT
-1515X(F)
amplifier
. If
power
is
available
and
the
amp
is
working
properly
, the
Power
ON/OFF
switch
will
light
up.
If
it
does
not,
unplug
the
AC
cable
from
the
wall
and
then
check
the
AC
mains
fuse
in
your
ACT
-1515X(F)
for
conti
-
nuity
with
a
multimeter
or
ohmmeter
.
If
the
fuse
is
open
(no
continuity)
replace
with
same
kind
and
type.
If
the
replace
-
ment
fuse
blows
in
short
order
, seek
ser
vice
from
a
qualified
technician. 10)
Po
WE
r
Cor
D
Co
NNECT
or:
For
attachment
of
the
in
-
cluded
IEC
standard
detachable
power
cord.
Please
replace
this
cord
should
it
become
chafed,
cut,
bent
or
damaged
in
such
a
way
that
the
protective
insulation
is
compromised.
TOUCHING
LIVE
EXPOSED
WIRES
ON
THE
POWER
CORD
CAN
RESUL
T IN
INJUR
Y
OR
DEA
TH!
Only
replace
the
cable
with
the
exact
same
type
and
size.
11)
FUSE
H
OLDER
:
House
a
8
amp
(115
V
olts)
or
4
amp
(230
V
olts)
3AB
size
slow-blow
fuse.
REPLACE
ONL
Y
WITH
SAME
KIND
!!!!
NOTE!!!
Ver
y
often
a
blown
fuse
is
a
symp
-
tom
of
a
serious
problem
with
the
amplifier
or
speaker
. Under
normal
operating
conditions
the
fuse
should
NEVER
go
open.
It
does
so
only
under
fault
conditions.
Take
extreme
care
with
household
electricity
as
it
has
the
potential
for
deadly
harm.
Do
not
expose
the
amplifier
inside
by
removing
the
amp
from
the
cabinet
and
then
plugging
it
into
AC
mains
power
. V
oltages
present
on
the
printed
circuit
board
can
be
lethal!
If
the
fuse
repeatedly
blows,
especially
on
first
powering
up
the
amp,
it
is
an
indicator
of
a fault
condition
and
the
AC
mains
power
should
be
removed
and
the
entire
system
should
be
brought
into
a
qualified
ser
vice
technician
for
repair
.
VOL
TAGES
PRESENT
ON
THE
PRINTED
CIRCUIT
BOARD
WHILE
THE
AMP
HAS
AC
MAINS
POWER
SUPPLIED
TO
IT
ARE
POTENTIALL
Y LETHAL
!!