Applications - IMG STAGELINE PPA-100/SW Mode D'emploi

CH
SOLO 1
MAIN
PPA-100/SW
0 LEVEL 10
1 2 3 4
6-Channel Headphone Amplifier
These instructions are intended for users
without any specific technical knowledge .
Please read these instructions carefully prior
to operation and keep them for later ref-
erence .
1 Overview
(channels 1 to 6 are identical)
1 Selector switch SOLO / MAIN for the
respective headphone output
button not pressed:
the signal of the corresponding SOLO
INPUT (13) can be heard in the head-
phones
button pressed:
the signal of the MAIN INPUT (5, 7, 11
or 12) can be heard in the headphones
2 6 .3 mm jack for the headphones
3 Signal LED
lights up in green:
starting from a certain volume at the
headphone output
lights up in red:
in case of overload; turn back the con-
trol LEVEL (4) correspondingly
4 Volume control LEVEL
5 MAIN INPUT via 6 .3 mm jack at the front
panel;
when this jack is connected, the signals
of the other MAIN INPUT jacks (7, 11, 12)
will be switched off
6 Level switch INPUT LEVEL for the MAIN
INPUT
button not pressed:
the input signal is not attenuated
button pressed:
the input signal is attenuated by 20 dB
to ⁄
1
10
7 MAIN INPUT via RCA jacks; connected
in parallel with the RCA jacks (11) at the
rear panel;
when one of the 6 .3 mm jacks (5 or
12) is connected, the RCA jacks will be
switched off
8 POWER switch
9 POWER LED
10 Mains cable for the connection to a
mains socket (230 V/ 50 Hz)
11 MAIN INPUT via RCA jacks; connected
in parallel with the RCA jacks (7) at the
front panel;
when one of the 6 .3 mm jacks (5 or 12)
is connected, the RCA jacks will be
switched off
12 MAIN INPUT via 6 .3 mm jack at the rear
panel;
when this jack is connected, the signals
6
CH CH
SOLO 2 SOLO 3
MAIN MAIN
0 LEVEL 10 0 LEVEL 10
of the RCA jacks (7 + 11) will be switched
off;
on the other hand, this jack is switched
off when the 6 .3 mm jack of the MAIN
INPUT (5) at the front panel is connected
13 Separate SOLO INPUT for each channel
2 Safety Notes
This unit corresponds to all relevant directives
of the EU and is therefore marked with
WARNING The unit uses dangerous
(2)
•
The unit is suitable for indoor use only . Pro-
tect it against dripping water and splash
water, high humidity and heat (admissible
ambient temperature range 0 – 40 °C) .
•
Do not place any vessels filled with liquid,
e . g . drink ing glasses, on the unit .
(2)
•
Do not operate the unit or immediately
disconnect the plug from the mains socket
1 . if there is visible damage to the unit or
to the mains cable .
2 . if a defect might have occurred after
the unit was dropped or suffered a sim-
ilar accident .
3 . if malfunctions occur .
In any case the unit must be repaired by
skilled personnel .
•
A damaged mains cable must be replaced
by the skilled per sonnel only .
•
Never pull the mains cable to disconnect
the mains plug from the mains socket,
always seize the plug .
•
For cleaning only use a dry, soft cloth,
never use water or chemicals .
•
No guarantee claims for the unit and no
liability for any resulting personal damage
or material damage will be accepted if the
unit is used for other purposes than orig-
inally intended, if it is not correctly con-
nected or operated, or if it is not repaired
in an expert way .
•
Important for UK Customers!
The wires in this mains lead are coloured
in accord ance with the following code:
blue = neutral
brown = live
As the colours of the wires in the mains
lead of this appliance may not correspond
with the coloured markings identifying the
terminals in your plug, proceed as follows:
1 . The wire which is coloured blue must be
connect ed to the terminal in the plug
which is marked with the letter N or
coloured black .
CH CH
SOLO 4 SOLO 5
MAIN MAIN
0 LEVEL 10 0 LEVEL 10
mains voltage . Leave servic-
ing to skilled personnel only .
Inexpert handling or modifi-
cation of the unit may result
in electric shock .
INPUT LEVEL
CH
SOLO 6
MAIN
HI L
LO
MAIN
R
INPUT
0 LEVEL 10
LEDS:
GREEN – SIGNAL
RED – PEAK
5 6 7
2 . The wire which is coloured brown must
be connected to the terminal which is
marked with the letter L or coloured red .
If the unit is to be put out of oper-
ation definitively, take it to a local
recycling plant for a disposal which
is not harmful to the environment .

3 Applications

.
The PPA-100/SW is a 6-channel stereo head-
phone amplifier . It can be used to amplify
audio signals with line level (e . g . of CD play-
ers, tape decks, mixers) for reproduction via
up to six headphones . Via the inputs SOLO
INPUT, a different signal can be fed to each
channel . Input signals at the MAIN INPUT
can be distributed to multiple channels .
4 Setting up the Amplifier
The amplifier can be used as a tabletop unit
or insered into a rack (482 mm /19") . For in-
stallation into a rack, 1 rack space (= 44 mm)
is necessary .
5 Connecting the Amplifier
Always switch off the amplifier before mak-
ing or changing any connections .
An audio unit can separately be connected
to a single channel (SOLO INPUT) – then it
can only be heard via the respective channel
– or to one of the inputs MAIN INPUT so that
it is audible for all channels .
Via the inputs INPUT MAIN, the level can
be reduced by 20 dB to
switch INPUT LEVEL (6); therefore, units with
a very high output level should be connected
to one of these inputs .
1) Use the inputs SOLO INPUT (13) to con-
nect up to six audio units that are to be
monitored by a single pair of headphones
each .
2) Use the inputs MAIN INPUT (5, 7, 11, 12)
to connect up to three units; it will then
be possible to monitor one of the units
via multiple headphones:
a A unit may be connected to the RCA
jacks at the front panel (7) or alterna-
tively to the RCA jacks at the rear panel
(11) . Both pairs of jacks are connected
in parallel .
b As soon as another unit is connected to
the 6 .3 mm jack at the rear panel (12),
the unit cannot be heard any more at
the RCA jacks . The amplifier switches
to the unit connected to the 6 .3 mm
jack (12) .
c A third unit may be connected to the
6 .3 mm jack at the front panel (5) .
Now all other signals at the jacks MAIN
INPUT (7, 11, 12) are switched off, and
POWER
8 9
⁄ by means of the
1
10