Symptom
No RDS
Low frequency hum-
ming noise audible
RCA (Cinch)
Name of a coaxial two-pole plug-and-socket con-
nection (abbrev. for "Radio Corporation of
America", name of a US-American company).
Plugs and sockets are built from a middle pin con-
ductor and a concentric metal cylinder mantle as
the outer conductor. One signal, audio or video,
can be transferred. Compared to XLR, this type is
being called "unsymmetrical signal connection"
("unbalanced").
Input sensitivity
Term used for the smallest input voltage that makes
the amplifier generate the maximum output power
at maximum volume setting. Examples: 100 to 500
mV (Millivolts) at high level inputs, 2 to 5 mV at
Phono-MM-Inputs or 0,1 to 0,5 mV at Phono-MC-
Inputs.
Audio sources / Audio source device
Components of your Hi-Fi system and devices that
deliver the audio signal you want to listen to, for
example CD-Players, Tuners, Tape recorders, DAT
Recorders, Personal Computers, Record players,
portable audio devices and many more.
Dolby
A company located in the Bay area near San
Francisco (Dolby Laboratories, Inc), named after its
founder and president Ray Dolby. In the recent
Possible reason
An AM station has been selected. Only some
FM stations provide RDS.
The FM station does not support RDS.
The RDS Function has been switched off.
See "Net frequency noise" in chapter "Tips"
GLOSSARY
Possible solution
Do without this service or change to an
FM station.
Do without this service or change to a
different FM station.
Activate the RDS function using the "RDS"
(8)(33) button.
decades this company developed many technolo-
gies and signal processing standards for the impro-
vement of audio playback and recording. Most
famous products are „Dolby NR" (noise reduction
for audio tape playback), „Dolby Surround
Prologic" (analog multi channel audio standard)
and „Dolby Digital" (digital multi channel audio
standard).
Dolby Surround Prologic
Dolby Prologic is an analog four-channel audio
system including two front channels, one center
channel and one surround channel. The signals of
both additional channels are integrated in a clever
way into the Stereo signal (of VHS-Cassettes, LD's
und DVD's, as well as diverse TV programmes), so
that even conventional equipment, that cannot pro-
cess surround sound, can use the integrated stereo
sound as usual. A decoder separates the four chan-
nels. The Dolby Surround Prologic sound quality is
not perfect: the surround channel ist monophonic
and has a cut frequency range of 100 to 7000 Hz.
Moreover, as opposed to the digital surround
systems a considerable crosstalk into both additio-
nal channels is present.
Dolby Prologic II (5.1)
From conventional two channel signals, for exam-
ple digital PCM, analog Stereo or Dolby Surround
Prologic signals 5.1 separate channels are calcula-
Vincent
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