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  9. Williams Sound PLA-215 User manual

Williams Sound PLA-215 User manual

MAN 172A
PLA-215
Hearing HotSpot™Room Loop
Manual and User Guide
8 English
1 2 3 4 5 6 7 8 9
Operating elements – Front panel
1 Volume control
2 Tone control (treble/bass)
3 Headphone connection jack
4 LOOP LEVEL indicator
5 Microphone button
Operating elements – Back panel
10 Power jack
11 Loop connectors
12 LINE input level control
13 LINE input jack (B) line in
14 LINE input jack (A) line in
15 Priority microphone in jack (B)
16 Microphone in jack (A)
6 Priority button
7 Power on/off
8 Button for the automatic
gain control
9 Line input selection button
Stand for LA-215
10 11 12 13 14 15 16
English 9
Congratulations on purchasing your LA-215
loop amplifier. You have chosen a modern
and reliable system.
Please read through these operating in-
structions carefully. They tell you how to set
up the system correctly and explain all the
system’s features to you.
Standard components
Please check if all following components are
included:
- LA-215 loop amplifier
- Power cord
- Stand
- Microphone cable
- 37 m of loop cable and cable clips
- Connection cable set
- Operating instructions
- Guarantee card
If any parts are missing, please immediate-
ly contact your dealer or the manufacturer
directly.
How it works
The LA-215 picks up signals from an audio
source that is directly connected with the
device with a lead or via a microphone.
A magnetic field is created in the loop. With
the help of a hearing aid equipped with an
integrated teleloop or an inductive receiver,
you can hear the amplified audio signals
(TV, radio, microphone) at the volume of
your choice.
Display and operating elements
Front panel
Power on/off (7):
Press this button to switch the LA-215 on
and off.
Once you have switched the device
on, the indicator will light up and the line in-
put jack A (14) is active.
Volume control VOLUME (1)
Tone control (treble/bass) TONE (2)
Headphone connection jack (3):
To connect a headphone with a 3.5-mm
jack. This makes it possible to check the
amplifier’s output signal even if a loop is not
connected.
LOOP LEVEL indicator (4):
This indicates that a signal is being trans-
mitted by the loop cable. It flickers with a
low volume and remains steady with louder
volumes. Testing the system can be done
by speaking into a microphone and seeing
the light flash, this will indicate that a signal
is flowing round the cable.
If one of the following buttons is pressed,
the corresponding light-emitting diode
(LED) will light up to indicate which function
has been activated. If the button is pressed
again, the indicator will go off.
Microfon button MIC (5):
Press this button to reduce the background
noise in noisy rooms.
Priority button PRI (6):
A signal detected on microphone input B
(15) will be treated as the priority signal. This
makes it possible to monitor a doorbell or
a telephone. If this function is switched off,
both microphone inputs will be processed in
the same way.
10 English
Button for the automatic gain control
AGC (8):
If this function is activated, the volume in the
induction loop will be limited to the volume
selected with the volume control.
This eliminates the needs to constantly ad-
just the volume for different pro
grams.
Line input selecting button LINE (9):
If you connect 2 audio sources to the LA-215,
you can press this button to select the sig-
nal you want to hear. When the amplifier is
switched on, line input jack A (14) is always
active initially. Press this button to activate
line in B (13). This function is only available
for the LINE input jacks.
Back panel
LINE input level control - LINE INPUT
LEVEL (12):
This control knob can be used to set the
overall volume of the input signal. In addi-
tion, the volume can be adjusted between
the line and the microphone inputs.
Fig. A
Installation
1 Use the connection cable included with
the device to connect an audio source
to one of the two line in jacks (13, 14) on
the back panel (Fig. B).
If your television set or your sound
source is not equipped with a direct
connection, use the microphone, which
you can insert into one of the two micro-
phone jacks (15, 16).
2 Connect the two ends of the loop (Fig.
A) with the input jacks (11). Press the
red and black button to insert the cable
and release the button to lock it in place.
Make sure that only the not insulated
part of
the cable is clamped into the con-
nections.
To remove the cable, press the
button again and pull the cable out.
Fig. B
White cinch
jack
White cinch
plug
Red cinch
plug
Red cinch
jack
loop amplifier
LA-215
Sound source,
e.g. TV or stereo
Lay the loop
under the car-
peting or along
the
baseboard
English 11
Operation
1. Before you insert the power cord into
the designated socket on the rear panel
of the inductive loop amplifier, set the
volume control to its lowest setting.
2. Press the Power on/off button (7) to
switch the loop amplifier on.
3.
Now anyone wearing a hearing aid must
set it to the T or MT position.
4. Adjust the volume control to the desired
volume.
Important: Before you connect or discon-
nect an audio source, always pull the power
cord out of the wall outlet.
Troubleshooting
No sound
- Check to make sure that all the cables are
connected properly.
-
Make sure that the amplifier is switched on.
- Make sure that the hearing aid is set to the
“T” or “MT” function.
- Make sure that the volume is set correctly.
Volume level is not loud enough
- The volume control is set too low. Turn
up the volume on the amplifier.
- The Line Input control is set too low. Turn
up the Line Input control.
- Make sure that you are sitting up fairly
straight. The more you lie down, the wea-
ker the signal will become.
Sound distortion
- Loop volume is set too high. Turn the vol-
ume down.
- Connection cable is damaged. Replace
the cable.
Background noise (humming)
- Switch the loop amplifier off and if the
noise continues, this indicates interfer-
ence caused by another device, such
as the TV, neon lights or dimmer switches.
- If the noise disappears when the loop
amplifier is switched off, the problem
might be a system error, a damaged
microphone cable or a noise that is being
transmitted by the microphone.
Maintenance and care
The LA-215 loop amplifier does not require
any maintenance. If the unit does become
dirty, simply wipe it clean with a soft, damp
cloth. Note: remove the LA-215 from
mains socket! Never use spirits, thinners
or other organic solvents. Do not set up the
LA-215 loop amplifier where it will be ex-
posed to full sunlight for long periods. In ad-
dition, it must be protected against exces-
sive heat, moisture and severe mechanical
shocks.
Note: This product is not protected against
splash water. Do not place any containers
filled with water, such as flower vases, or
anything with an open flame, such as a lit
candle, on or near the product.
12 English
Warranty
The LA-215 loop amplifier is a very reliable
product. Should a malfunction occur de-
spite the unit having been set up and oper-
ated correctly, please contact your dealer or
the manufacturer directly.
This warranty covers the repair of the product
and returning it to you free of charge. It is
essential that you send in the product in its
original packaging, so do not throw the pack-
aging away.
The warranty does not apply to damage
caused by incorrect handling or attempts to
repair the unit by people not authorised to
do so (destruction of the seal on the unit).
Repairs will only be carried out under war-
ranty if the completed warranty card is re-
turned accompanied by a copy of the deal-
er’s invoice/till receipt.
Always specify the product number in
any event.
Disposal off used electric and elec-
tronic units (applicable in the coun-
tries of the European Union and oth-
er European countries with a separate col-
lection system). The symbol on the product
or the packaging indicates that this product
is not to be handled as ordinary household
waste but has to be returned to a collect-
ing point for the recycling of electric and
electronic units. You protect the environ-
ment and health of your fellow men by the
correct disposal of this products. Environ-
ment and health are endangered by a faulty
disposal. Material recycling helps to reduce
the consumption of raw material. You will re-
ceive further information on the recycling of
this product from your local community, your
communal disposal company or your local
dealer.
English 13
Specifications
Power connection: 230 V AC 50 Hz 20 VA
Loop output power: 2.85 A output power at 100-5000 Hz.
The loop is at full output power at a
resistance of between 0.5 and 1.5 ohms.
Loop cable: Single-wire loop cable 37 m long
(0.75 mm2thick).
Minimum cable length 11 m = 0.5 ohms
Dimensions (WxHxD): 180 x 42 x 140 mm
Weight: 905 g
This device satisfies the following EU directives:
- 2002/95/EG RoHS directive
- 2002/96/EG WEEE directive
- 2004/108/EG EMC directive
- 2006/95/EG Low voltage directive
Compliance with the directives listed above is confirmed by the CE seal on the device.
CE compliance declarations are available on the Internet at www.humantechnik.com.
Technical specifications subject to change without notice.

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