Dynacord PRO MATRIX SYSTEM DPA 4245 Bedienungsanleitung Seite 19

MAINS FUSE
T10A/L/250V
CAUTION:
REPLACE WITH SAME TYPE AND VALUE FUSE INDICATED.
ATTENTION:
COMME INDIQUE.
S
PIN 1: SHIELD
PIN 2: a, +
PIN 3: b, -
Instructions On How To Install NRS 90208 Extension Kits
•
unplug the power amplifier from the mains
•
detach all screws holding the cover plate of the appliance
•
lift and remove the cover plate
•
disconnect the flat-wire cable of the printed board assembly 81340/1
•
detach all screws holding the printed board assembly 81340/1
•
remove the printed board assembly 81340/1 and unsolder the resistors R106 ... R109
•
attach insulators to the input transformers according to the corespondent marks on the printed board
assembly
•
re-assemble the appliance by performing all steps described in the opposite order
Downloaded from www.Manualslib.com
230V 50-60 Hz
870 WATTS
CIRCUIT TO
CHASSIS SWITCH
GROUNDED
UNGROUNDED
WARNING:
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
REMPLACER PAR UN FUSIBLE DE MEME TYPE
AVIS:
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
AUDIO TRANSFORMER OUTPUTS
B A
LOW IMPEDANCE
+ 100V BRIDGED + 100V +
1200W/8
+ + + +
25V 70V 70V 25V
B DUAL A
+ +
600W
4
100 70 0 DIRECT OUTPUTS 0 70 100
OUTPUT WIRING MUST BE CLASS 1
ISOLATED OUTPUTS
Inputs INPUT CHANNEL A&B
With an input sensitivity of 775 mV = 0 dBu and an input impedance of
20 k ohms, the electronically balanced inputs – INPUT CHANNEL A&B
– are meant for the connection of control amplifiers, audio controllers,
+
mixing consoles, etc.
Peripheral pieces of audio equipment are either connected via the XLR-
--
type input connectors or using the parallel-linked binding posts. For the
latter option you can utilize the supplied screw-plugs. Thus, carrying the
audio signals through to feed additional power amplifiers can be conve-
niently achieved without the need for special split-cables.
The XLR-type input connectors' pin-assignment is in accordance to the
IEC 268 standard:
In case the controlling device does not supply balanced output connec-
+
tors, it is also possible to configure the connectors for unbalanced ope-
ration. Therefore, the common ground (pin 1) has to be connected to the
(–) input (pin 3). The audio signal is now solely fed through the (+) input
(pin 2).
So, to be able to entirely make use of all the advantages the electroni-
cally balanced input stage offers – like the suppression of humming and
interference noise – it is beneficial to re-establish balanced input con-
nection whenever possible.
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CAUTION
CHANNEL B
RISK OF ELECTRIC SHOCK
INPUTS
DO NOT OPEN
+
POWER REMOTE
POWER
+
SEE OPERATING MANUAL!
+24V ON
0V OFF
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
19
CHANNEL A
INPUTS
INPUT
ROUTING
-6 -5 -6 -5 +
-4 -4
-9 -9
-3 -3
DUAL
-12 -12
-2 -2
-16 -16
-1 -1
-30 -30
0 dB 0 dB
LEVEL LEVEL
PARALLEL
DPA 4260
121715
MADE IN GERMANY
BRIDGED MODE
NORMAL
BRIDGED