30
Problem
Solution
Appliance not
• Is the appliance switched on?
functioning
• Is the mains plug inserted into the mains socket?
• Is the FUSE fuse (19) of the appliance defective?
• Check the mains socket. Does it
have a regular supply of power?
The appliance is
• Is the audio source connected correctly to the
working, but no sound
LINE IN sockets (16)?
is audible
• Are the downstream appliances correctly connected to
the LINE OUT sockets (15)?
• Is the audio source switched on and its volume control
not turned down to minimum?
• Are the downstream appliances switched on and their
volume controls not turned down to minimum?
• Are amplifier and loudspeakers properly connected?
One channel
• Are all inputs and outputs correctly connected, is a
does not function
plug loose?
• Is the balance control of the audio source in its centre
position?
• Are the loudspeakers properly connected?
• Are the volume controls of the amplifier set correctly?
There is a
• Are the signal cables connecting the audio source and
humming sound
the downstream appliances defective?
There are
• Is there an overdrive of the 2-channel-compressor input?
distortions
(Reduce the volume setting of the audio source)
• Is the audio source input signal too high?
• Are the volume controls on the amplifier set too high?
Repairs other than those just described should only be performed
by an authorised electrician.
19
Intended use
The 2-channel-compressor is used to process and manipulate low-level audio sig-
nals in PA systems. The output signals are also low-level audio signals.
The appliance is interposed between the signal source and downstream audio appli-
ances.
The fields of application are semi-professional and professional audio systems.
This product is only approved for connection to 230V~/50Hz or 115V~/60Hz AC vol-
tage via shockproof socket.
Use is only permitted in closed rooms, do not use in the open-air. Do not use in
humid environments, e.g. bathrooms and the like.
The above described conditions could damage the product and could cause short-
circuiting, fire and electric shock, etc. No part of the product should be altered or
modified and the housing should not be opened!
The safety instructions must be observed at all times!
Names of individual parts
(see fold-out page)
(1)
POWER switch
(2)
EXPANDER/GATE THRESHOLD control
(3)
CLOSE LED
(4)
COMPRESSOR/LIMITER THRESHOLD control
(5)
RATIO control
(6)
ATTACK control
(7)
AUTO switch
(8)
RELEASE control
(9)
OUTPUT control
(10) IN switch
(11) PROCESS control
(12) GAIN REDUCTION LED display
(13) AUTO LED
(14) IN LED
(15) LINE OUT sockets
(16) LINE IN sockets
(17) DETECTOR LOOPS socket
(18) Mains voltage selection switch
(19) FUSE fuse
(20) Power supply cable