Univox DLS-380 Manual

Setup INSTRUCTIONS for UNIVOX DLS-380
WARNING!
LIVE TERMINALS ENCLOSED.
Always remove the power cord cable
before opening the amplifier!
LOOP
AREA
Fig.1
Fig.2A
Door Bell
Fig.2B
Fig.2C
Fig.2D
12V AC
Max. 1.6A
IN1 IN2
IN3/Mic & Scart
12V DC
MAX 30mA
0 dB
OUT 1
4
2
3
76
Fig.3A
Fig.3B
12V AC
Max. 1.6A
(With loop beep signal)
2004-01-20
E-mail: [email protected]
Site: www.edin.se
(With loop
beep signal)
(With loop
beep signal)
(Without loop beep
signal)
Left.
Right
1. LOOP OUTPUT. Place the amplifier in a suitable position. It must not be covered.
Connection loop wires must be twisted. Normally single turn loops should be used, but two
turns loops give better result especially in smaller areas. Use a twin cable for trial purpose.
Select according to table below:
7 8 9 10
Loop current adjustment is done with 3 dB steps at the connector. Finer adjustment can be
made (normally not needed) with the trimmer marked ”LOOP ADJ” at the printed circuit
board (fig 4, page2).
UNIVOX DLS-380 fulfils the International standards for Loop Systems up to 170m2
(squared loop, 1.2 m above the loop level). Reinforced concrete and other metallic objects
can reduce covered area strongly. The installation is not completed until the field
strength is verified according to international regulations (IEC 60118-4). For correct
measurement use FSM, field strength meter, together with the standardized artificial
speech for correct result.
2. TONE SIGNALING & DOORBELLS :
All connections except Fig 2D generates a signal, rich of harmonics through the loop.
2A. Door signal from existing system, 5-24VAC/DC. For DC operation connect + to pin 8.
The tone signalling output from a UNILUX 75F can be connected to this input:
connect 75F pins 13&14 to DLS-380 pins 8 and 9 respectively.
2B. Door and/or telephone bell with current supplied from the 380. 12V AC max. 1.6A.
2C. Tone signalling by closing contacts, pins 7&8 are strapped.
2D. Voltage outputs, 12V AC, max. 1.6A, no tone signalling via the loop.
3. INPUTS/OUTPUTS:
Potentiometer ”In Adj” sets the input sensitivity. It is factory set to 50mV. There is
normally no need for adjustments because of the Dual Action AGC-circuitry.
IN1/IN2 = 7mV-10V/330Ohm, standard (uncut resistor). 150kOhm with cut resistor.
IN3 = 7mV-10V/100kOhm. Stereo input. Phantom Voltage matches all UniVox micro-
phones. A 50/100 Volts-line needs a separate transformer close to the UNIVOX DLS-380.
Auto Mute function (noise gate). If input signal is below AGC-knee level, (AGC-LED is
off) the amplifier mutes after 10 seconds. This reduce the risk of magnetic self oscillation
when the AGC circuitry slowly increases the gain. Disable this function by removing the
jumper Auto mute if there is a risk for quiet parts to be muted unnecessarily.
Note: When using high impedance signal (not recommended) into IN1 or IN2, the respec-
tive resistors marked IN1/IN2 on the Printed Circuit Board must be cut. Normally not
necessarily
Input 3 = IN3 on 7-pin DIN-connector on the right hand side. This connector also includes
the line output 0dB and a small power supply output. Please see Fig. 3B. The microphone
13A can be used with the TV-loudspeaker if a Scart connector is missing.
Note: No unconnected wire is permitted. The signal wires must be kept as far as possible
from the loop cable. Avoid parallel installations at distances of less than 200mm. Crosso-
vers are permitted.
4. STARTING UP: Connect UNIVOX DLS-380 to the mains outlet (“ON” LED lights
up). Please note that the amplifier is designed to be continuously powered. This actually
increases the apparatus lifetime. The stand-by power consumption is very low.
The LED marked “AGC” indicates when the input signal is high enough.
The LED marked “LOOP” indicates when there is current floating (sound in the Hearing
Instrument at T-position) in the loop.
A corresponding jumper inside the amplifier activates the AGC & LOOP Led. (Fig 4).
Check the frequency response and field strength according to the UNIVOX way to
fulfil the BS 6083 & international standard IEC 60118-4.
maerA
2
on-niPnrut-1nrut-2leveL
071-0012&1mm3=>
2
----Bd0
001-573&1mm3=>
2
----Bd3-
57-054&1mm5.1(
)2
mm5.1x2=>
2
Bd6-
05-535&1mm57.0(
)2
mm5.1x2
2
Bd9-
53=<6&1----mm5.1x2
2
Bd21-

This product fulfil EMC-directive 89/336/EEC only if:
a. The installation is done accordingly to this instruction.
b. The product is not by any way modified.
c. The system* is not self-oscillation.
d. No disturbances are inserted in any way to the system.
* With system means all directly or indirectly connected products or wires.
For questions and information please contact:
Mounting Drill Guide
UNIVOX DLS-380
IN1 IN2
BASS
Fig. 4
TREBLE
CONNECTORS FOR
DISCONNECTIONLEDS
LOOP & AGC
LOOP
AGC
WARNING!
LIVE TERMINALS
ENCLOSED.Always
remove the power cord
cable before opening the
amplifier!
LOOP ADJ Auto mute
In Adjust
2004-01-20. Z:\ProductsPublic\LoopAmplifiers-system\DLS-380\English\Service\DLS-380_IgGbV1.PMD
Field Strength Meter,
FSM. Instrument for
noise, freq.response,
fieldstrength of loop
amplifiersystems
according to IEC-60118-4
Microphone
13A, with
Velcro-tape.
Attaches at the
loudspeaker if
Scart cannot be used.
SCART5,mono, DIN for
direct plug-in to UNIVOX
DLS-380, 5 meter wire.
AutoScart.
Switches the sound automati-
cally between TV-set and
SAT, VCR, digital box, etc.
No external power supply
needed.
SCART4,
mono, open
ends, 5 meter
wire.
UniEar,
makes it easy to check the
field strength and sound
quality of a loop, using stereo
headphones. Indicates field
strength peaks for +6 and
+12dB according to IEC-
60118-4.
Available with build-in small
loudspeaker for listening close
to the ear.
INSTRUCTION FOR REMOVING THE PCB:
• Disconnect the power cord from the wall outlet.
• Untight the 2 screws at the short sides and lift the cover.
• Remove the two screws holding the heat sink.
• Remove the screw holding the PCB.
• Unplug the transformer connector.