General Description Of The Tv Sound Of Sound Processor - Daewoo DUB-2850GB Service Manual

CP-780 Service Manual
Correct operation is not guaranteed if registers in the range $FB to $FF will be addressed!
Read registers
The output registers of the TV processor are only available via auto-increment mode, no
address can be used and all registers must be read.

5.3 GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR

The TV Sound Processor is a digital TV sound processor for analogue multi-channel sound
systems in TV sets. It is based on a 24 bit DSP and designed to support several applications.
A new easy-to-use control concept was implemented for easiest configuration programming of
the very complex functionality of the TV Sound Processor. Pre-defined setups are available for
all implemented sound processing modes. Aloud speaker switching concept allows it to adapt
the pre-defined setups to the specific loudspeaker application. The built-in intelligence for pre-
defined standards and Auto Standard Detection (ASD) allows an easy setup of the demodulator
and decoder part.
The control concept for the audio processor is based on the following new features:
* Pre-defined setups for the sound processing modes like Dolby(r) Pro Logic(r) and Virtual
Dolby(r) Surround (422, 423)
* Flexible configuration of audio outputs to the loudspeaker configuration with an additional
output crossbar
* Master volume function
The control concept for the demodulator and decoder (DEMDEC) is based on the following new
features:
* Easy demodulator setup for all implemented standards with Demodulator and Decoder Easy
Programming (DDEP) for a pre-selected standard or combined with Auto Standard Detection
(ASD) for automatic detection of a transmitted standard
* Automatic decoder configuration and signal routing depending on the selected or detected
standard
* FM overmodulation adaptation option to avoid clipping and distortion
5.3.1 Supported standards
The multistandard capability of the TV Sound Processor covers all terrestrial TV sound
standards, FM Radio and satellite FM.
The AM sound of L/L standard is normally demodulated in the 1st sound IF. The resulting AF
signal has to been tered into the mono audio input of the TV Sound Processor. A second
possibility is to use the AM demodulator in the DEMDEC part, however this may result in limited
performance.
Korea has a stereo sound system similar to Europe. It is supported by the TV Sound Processor.
Differences include deviation, modulation contents and identification. It is based on M standard.
Other features of the DEMDEC are:
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