Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
Téléviseurs; This is a 21-pin connector
used in EU, that carries various audio,
video, and control signals (it is also
called Péritel connector)
SCL
Serial CLock Signal on I
2
C bus
SD
Standard Definition
SDA
Serial DAta Signal on I
2
C bus
SDRAM
Synchronous DRAM
SECAM
SÉquence Couleur Avec Mémoire;
Colour system mainly used in France
and East Europe. The chroma is FM
modulated and the R-Y and B-Y
signals are transmitted line
sequentially. Colour carriers=
4.406250 MHz and 4.250000 MHz
SIF
Sound Intermediate Frequency
SMPS
Switched Mode Power Supply
SND
SouND
SNDL-SC1-IN
Sound left SCART1 in
SNDL-SC1-OUT
Sound left SCART1 out
SNDL-SC2-IN
Sound left SCART2 in
SNDL-SC2-OUT
Sound left SCART2 out
SNDR-SC1-IN
Sound right SCART1 in
SNDR-SC1-OUT
Sound right SCART1 out
SNDR-SC2-IN
Sound right SCART2 out
SNDR-SC2-OUT
Sound right SCART2 out
SOPS
Self Oscillating Power Supply
S/PDIF
Sony Philips Digital InterFace; This is
a consumer interface used to transfer
digital audio
SRAM
Static RAM
STBY
STandBY
SVHS
Super Video Home System
SW
Software or Subwoofer or Switch
THD
Total Harmonic Distortion
TXT
Teletext; TXT is a digital addition to
analogue TV signals that contain
textual and graphical information (25
rows x 40 columns). The information is
transmitted within the first 25 lines
during the Vertical Blank Interval (VBI)
µP
Microprocessor
VA
Vertical Acquisition
VL
Variable Level out: processed audio
output towards external amplifier
VCR
Video Cassette Recorder
VGA
Video Graphics Array; 640x480 (4:3)
WD
Watch Dog
WYSIWYR
What You See Is What You Record:
record selection that follows main
picture and sound
XTAL
Quartz crystal
Y
Luminance signal
Y/C
Y consists of luminance signal,
blanking level and sync; C consists of
chroma (colour) signal
YPbPr
This is a scaled version of the YUV
colour space. Y= Luminance, Pb/Pr=
Colour difference signals B-Y and R-Y,
other amplitudes w.r.t. to YUV
YUV
Colour space used by the NTSC and
PAL video systems. Y is the luminance
and U/V are the colour difference
signals
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