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Rear Panel
CAUTION то REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO
USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
ATTENTION
arin OE REDUIRE LE RISQUE DE CHOC ELECTRIQUE. NE PAS ENLEVER LE
COUVERCLE. IL NE SE TROUVE A L'INTERIEUR AUCUNE PIECE POUVANT ETRE REPAREE PAR
L'USAGER SADRESSER A UN REPARATEUR COMPETENT.
MONO MODE OPERATION-SEE INSTRUCTION MANUAL FOR CORRECT SPEAKER IMPEDANCE
POUR LE МООЕ MONAURALCONSULTEZ LE MANUAL O'OPERATION POUR VOUS ASSURER.
DE
10
IMPEDANCE ADEQUATE DES HAUT-PARLEURS,
MODE
CHANNEL
Bn
INPUT
à
© INPUT CONNECTIONS
Input connectors for each channel include one female XLR
connector
(electronically balanced)
plus 1/4-inch Tip/Ring/
Sleeve phone jack (for balanced or unbalanced lines). Pin 2
of the XLR is wired as the "hot" lead satisfying DIN/JIS and
IEEE standards. This corresponds to the tip of the T/R/S
phone jacks. Unbalanced T/S phone plugs may be used, as
well as balanced T/R/S plugs.
© MODE SWITCH (MONO/STEREO)
This two-position
switch selects the operating mode of the
STEREO or MONO:
STEREO
mode
selects
independent
operation
of each
amplifier channel. Facing the rear panel, the right-hand pair
of (*) and (—) terminals carry signal for the Channel
A
speaker load, and the left pair of (+) and (—) terminals to the
Channel B load.
:
МОМО
mode
rewires the two
channels
for bridged mono
operation. Only the Channel A input attenuator and input
connectors
are operative. Connect the speaker load to the
two red (+) terminals for Channels А and B; the Channel А
(+) terminal has the same polarity as pin 2 of the XLR or the
(*) input terminal. Do not allow either of the speaker wires
to contact any other wire, chassis, rack or connector.
Q SPEAKER(S) OUTPUT CONNECTIONS
Each channel's output is brought to three connection points
(all wired in parallel): a pair of 5-way binding posts and two
1/4-іпсһ Tip/Sleeve phone jacks. The red (+) and black (—)
terminals
of the
5-way
binding
posts
are
the
preferred
connections
for normal
operation.
However,
many
speaker
systems
are
equipped
with
phone
jack
inputs,
and
the
amplifier's phone jack outputs provide a convenient means to
connect
to
such
speakers
with
standard
phone-to-phone
unshielded cables.
While
all three
output
connections
may
be used
simul-
taneously,
make
sure the combined
load is no less than 4
ohms.
See the "Speaker Wiring" subsection of the MORE
INFORMATION ON SOUND SYSTEM WIRING" section.
TO RAIN OR MOISTURE
МАХ. RMS OUTPUT
75W/4Q
+173,
SP WIRING.CLASS
2 WIRING
MAY
BE USEO.
STEREO.
MADE
IN JAPAN
MAX.RMS OUTPUT
М/С
(34 6V)
АИ
төледік.
| І
CHANNEL =—= A (MONO!
CHANNEL
B
WARNING
то REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK , DO NOT EXPOSE THIS PRODUCT
(ЮҮАМАНА РОМЕН, кенімен
PRIMARY
" A
FUSE
120V 250W ЗООМА БОН; ~
БА 125У
SPEAKERS:
1and2-8-160. SPEAKER
1012 4-160 / SPEAKER.
2
FIRE
REPLACE
ONLY WiTH
SAME TYPE
FUSE.
ATTENTION
AFIN DE
REDUIRE LE
RISQUE DE
FEU.
REMPLACER
UNIQUEMENT
PAR UN
FUSIBLE DE
MEME TYPE.
U.S. & Canadian models
Fig. 2
CAUTION
NEVER USE COIL CORDS FOR SPEAKER HOOKUP.
Coiled, and even
many
non-coiled,
guitar-type cords
usually have higher internal resistance than the speakers
themselves. High resistance is due to the thin wires used
to keep the cords flexible (guitar cords are not intended
to carry a lot of power, so they don't need thick wires).
Such cords prevent most of the power from reaching the
speakers, and instead heat up. In high power operation, a
guitar-type cord can melt and cause a fire hazard. Use
heavy gauge speaker cords with phone plugs if you must
use phone plug connections at all; shielded cable is not
necessary or desirable for speaker connections.
© FUSE
Given reasonable ambient temperatures, and free air circula-
tion for the amplifier's cooling system, the output transistors
and heat sinks should
be able to handle maximum
power
output
indefinitely,
but
in the event of a power
supply
problem, or should there be a problem with the power mains
themselves, some form of protection is required.
This
fuse can
be of some
value in protecting the power
supply against power-line surges and long-term overloads at
the outputs.
The
amplifier
is designed to avoid unwanted
shutoff during a live performance, but it's better to blow a
fuse and replace it than to loose the amp altogether.
NOTE:
A thermal
breaker is included within the amp, and
reaches 85°С for General model and for all models, a protec-
tion LED will begin to blink when the heat sink temperature
exceed 60°C, If there is no output, and the fuse is not blown,
the problem may be overheating; wait for the unit to cool,
and it should come back on line.
|
WARNING
ONLY
USE
FUSES
OF
THE SAME
RATING
AND
TYPE AS
THE
ORIGINAL
FUSE
SPECIFIED
FOR
THE POWER
AMPLIFIER.
This information is prínted
on the amplifier rear panel, and is repeated here for
convenience:
U.S. & Canadian тодйе15...............
5A 125V
General model ....................
2.5A 250V
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