UP4000 – 5
Connect the appropriate
POWER OUTPUT
voltage terminal to the "+" (HIGH) leg and the "0"
terminal to the "–" (LOW) leg of the distributed
speaker system.
The ground ( ) terminal is internally connected
to the chassis and safety ground on the AC linecord.
The
PRIORITY
terminal activates the priority
function for the
BALANCED IN
by using an external
normally-open switch to short-circuit the
PRIORITY
terminal to the
GND
(ground) terminal. When the
PRIORITY
function is enabled, the
UNBALANCED IN
is muted (no signal from the
UNBALANCED IN
is
transmitted to the outputs).
This
GND
terminal is the common connection
point for
BALANCED IN
and
PRIORITY
.
The
BALANCED IN
terminals are the main input
for the amplifier and accept a balanced line-level
signal (0 dBu nominal). This input has a priority
function, which mutes the
UNBALANCED IN
signal
when the
PRIORITY
terminal is shorted to
GND
.
The
STAND BY
terminal is used to turn on the
amplifier with a remote switch.
Note:
Standby mode must first be activated by
moving a jumper (J1) on the input board (standby
mode is disabled by default). See "Internal Settings"
on page 8.
When the
POWER
switch is turned on, the amplifier
goes into standby mode. In this state, the amplifier
is on but signal is not allowed to pass. Shorting the
STAND BY
terminal to the
GND
terminal with an
external switch causes the amplifier to become fully
operational.
The
STANDBY GND
terminal on the
COMMANDS
terminal strip is the common
connection point for
STAND BY
.
The
OVERL. 300mA
terminal is active whenever
the amplifier's overload protection circuit is
activated. This provides 18 VDC with a maximum
output capacity of 300mA for driving an auxiliary
relay or indicating LED.
The
OVERL. GND
terminal on the
COMMANDS
terminal strip is the common connection point for
OVERL. 300mA
.
AC Protection Fuse protects the power supply
and amplifier circuitry. Replace only with same type
fuse.
Connect the supplied AC linecord to the IEC AC
Socket. The AC line fuse is contained in the socket,
behind the cover located at the bottom of the
socket. Replace only with same type fuse.
The
VOLTAGE SELECTOR
switch is used to
select the AC supply voltage for the amplifier. Move
the switch so the AC line voltage used appears on
the switch (DOWN for 115V, UP for 230V).
The
H.P.
switch activates a high-pass filter on the
balanced and unbalanced inputs, which attenuates
frequencies below 300Hz at 12 dB/octave.
The
L.P.
switch activates a low-pass filter on the
balanced and unbalanced inputs, which attenuates
frequencies above 7kHz at 12 dB/octave.
UNBALANCED IN
is an RCA jack that can be
used instead of the
BALANCED IN
, or both can be
used with the
PRIORITY
function, which gives the
BALANCED IN
priority over the
UNBALANCED IN
.
PARALLEL OUT
is an RCA jack that is in parallel
with the
UNBALANCED IN
jack for connecting to
the input of another power amplifier.
The
SENSITIVITY
switch adjusts the input
sensitivity of the
UNBALANCED IN
from 0 dB
(typical line-level signals) to 20 dB (for low-level
signals).
+
D.C. FUSE
115
0
50V
70V
100V
POWER OUTPUTS
0
25V
POWER INPUT
24V D.C.
COMMANDS
VOLTAGE
SELECTOR
POWER OUTPUTS
LINE
50/60 Hz-115/230V
-
4
INPUT
0dB
20dB
ON
OFF
PRIORITY
GND
UNBALANCED IN
GND
H.P.
FILTER
BALANCED
IN
L.P.
STAND
BY
SENSITIVITY
GND
PARALLEL OUT
OVERL.
300mA.
max
CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE INDUSTRIAL • MADE IN ITALY • PATENTS PENDING • COPYRIGHT ©1999
SERIAL NUMBER
MANUFACTURING DATE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
REPLACE WITH THE SAME TYPE FUSE AND RATING.
DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE.
DEBRANCHER AVANT DE REMPLACER LE FUSIBLE
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
CAUTION
AVIS:
RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
THE FOLLOWING ARE TRADEMARKS/REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", "MACKIE INDUSTRIAL", & THE "RUNNING MAN" FIGURE