Please unfold page 3. Then you can always see the
operating elements and connections described.
1
Universal PA Amplifier PA-888
100 W max. PA amplifier (Mono) for 230 V~ and 12 V
battery operation, also suitable for the mobile use in a
car or aboard a ship. 4 – 16-Ω speakers (preferably
horn drivers) as well as 100 V speaker systems can be
connected.
The following units may be mixed in any combination:
– 2 low impedance microphones,
– 1 audio unit with line output (tape recorder, cassette
player, tuner, CD or record player),
– 1 built-in signal circuit which can be switched to
siren, fog horn, or chime tone.
A tone control and a 7-way LED level indication are
built in. The 70
/
100 V speaker connections are not
grounded, the 12 V DC connection is provided with a
protection diode against wrong polarity.
2
Safety Notes
This unit corresponds to all required directives of the
EU and is therefore marked with
.
It is essential to observe the following items:
G
The unit is suitable for indoor use only. Protect it
against dripping water and splash water, high humid-
ity, and heat (ambient temperature range 0 – 40 °C).
G
Do not place any vessels filled with liquid, e. g. drink-
ing glasses, on the unit.
G
The heat which is generated in the unit has to be car-
ried off via air circulation. Therefore, do not cover the
air vents of the housing with anything.
G
Do not insert or drop anything into the air vents! This
could result in electric shock.
G
Do not take the unit into operation and immediately
take the mains plug out of the mains socket if:
1. damage at the unit or mains cable can be seen,
2. a defect might have occurred after a drop or simi-
lar accident,
3. there are malfunctions.
The unit must in any case be repaired by author ized
skilled personnel.
G
Never pull the mains cable to disconnect the mains
plug from the mains socket, always seize the plug.
G
Only use a dry, soft cloth for cleaning, by no means
chemicals or water.
G
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 originally intended, if it is not correctly con-
nected, operated, or not repaired in an expert way.
G
Important for U. K. Customers!
The wires in this mains lead are coloured in ac cord -
ance with the following code:
green / yellow = earth
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, pro-
ceed as follows:
1. The wire which is coloured green and yellow must
be connected to the terminal in the plug which is
marked with the letter E or by the earth symbol
,
or coloured green or green and yellow.
2. The wire which is coloured blue must be con-
nected to the terminal which is marked with the
letter N or coloured black.
3. The wire which is coloured brown must be con-
nected to the terminal which is marked with the
letter L or coloured red.
Warning – This appliance must be earthed.
3
Connections
1) The upper terminal connections COM (14) and 4 Ω /
8 Ω / 16 Ω (15) are provided for low impedance horn
drivers or other speakers. This upper terminal COM
(14) is connected with ground.
2) At the lower terminals COM (19) and 70 / 100 V (20),
100 V speaker systems are connected floating
above ground, like PA columns etc. which have a
100 V audio transformer.
3) The terminal GND (18) is the chassis connection. It
has to be connected with the COM terminal (19)
next to it, if the 100 V circuit has to be grounded.
4) Only after connection of all other components con-
nect the amplifier via the mains jack (16) with the
enclosed mains cable to a socket (230 V~ / 50 Hz).
5) If in case of a power failure of the 230 V mains the
amplifier should continue to operate, the power fail-
ure back-up of the amplifier can be connected to a
12 V rechargeable battery via the terminals 12 V
(13). Then the power switch (12) is out of function,
i. e. after the connection of the rechargeable battery
the amplifier is always in operation.
If the unit is to be put out of operation defini-
tively, take it to a local recycling plant for dis-
posal which is not harmful to the environ-
ment.
WARNING
The unit is supplied with hazardous
mains voltage (230 V~). Leave servicing
to skilled personnel only. Inexpert han-
dling may cause an electric shock haz-
ard. Furthermore, any guarantee claim
will expire if the unit has been opened.
A dangerous voltage is present at the speaker con-
nections (20) during the operation. All connections
must only be performed or changed if the unit is
switched off.
Caution!
During the operation the heat sink (17) at the rear
side of the unit may become hot (T > 60 °C). Do not
touch this area!
6
GB
