Sharp LC-32LE631E Service Manual page 23

Precautions, Notes and Abrreviattion List (continued)
3.575612 MHz and PAL N= 3.582056
MHz)
PCB Printed Circuit Board (same as "PWB")
PCM Pulse Code Modulation
PDP Plasma Display Panel
PFC Power Factor Corrector (or Pre-
conditioner)
PIP Picture In Picture
PLL Phase Locked Loop. Used for e.g.
FST tuning systems. The customer
can give directly the desired frequency
POD Point Of Deployment: a removable
CAM module, implementing the CA
system for a host (e.g. a TV-set)
POR Power On Reset, signal to reset the uP
PSDL Power Supply for Direct view LED
backlight with 2D-dimming
PSL Power Supply with integrated LED
drivers
PSLS Power Supply with integrated LED
drivers with added Scanning
functionality
PTC Positive Temperature Coefficient,
non-linear resistor
PWB Printed Wiring Board (same as "PCB")
PWM Pulse Width Modulation
QRC Quasi Resonant Converter
QTNR Quality Temporal Noise Reduction
QVCP Quality Video Composition Processor
RAM Random Access Memory
RGB Red, Green, and Blue. The primary
color signals for TV. By mixing levels
of R, G, and B, all colors (Y/C) are
reproduced.
RC Remote Control
RC5 / RC6 Signal protocol from the remote
control receiver
RESET RESET signal
ROM Read Only Memory
RSDS Reduced Swing Differential Signalling
data interface
R-TXT Red TeleteXT
SAM Service Alignment Mode
S/C Short Circuit
SCART Syndicat des Constructeurs
d'Appareils Radiorécepteurs et
Téléviseurs
SCL Serial Clock I
SCL-F CLock Signal on Fast I
SD Standard Definition
SDA Serial Data I
SDA-F DAta Signal on Fast I
SDI Serial Digital Interface, see "ITU-656"
SDRAM Synchronous DRAM
SECAM SEequence Couleur Avec Mémoire.
Color system mainly used in France
and East Europe. Color carriers=
4.406250 MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
SMPS Switched Mode Power Supply
SoC System on Chip
SOG Sync On Green
SOPS Self Oscillating Power Supply
SPI Serial Peripheral Interface bus; a 4-
wire synchronous serial data link
standard
S/PDIF Sony Philips Digital InterFace
SRAM Static RAM
SRP Service Reference Protocol
SSB Small Signal Board
SSC Spread Spectrum Clocking, used to
reduce the effects of EMI
STB Set Top Box
STBY STand-BY
SVGA 800 × 600 (4:3)
2
C
2
C bus
2
C
2
C bus
SVHS Super Video Home System
SW Software
SWAN Spatial temporal Weighted Averaging
Noise reduction
SXGA 1280 × 1024
TFT Thin Film Transistor
THD Total Harmonic Distortion
TMDS Transmission Minimized Differential
Signalling
TS Transport Stream
TXT TeleteXT
TXT-DW Dual Window with TeleteXT
UI User Interface
uP Microprocessor
UXGA 1600 × 1200 (4:3)
V V-sync to the module
VESA Video Electronics Standards
Association
VGA 640 × 480 (4:3)
VL Variable Level out: processed audio
output toward external amplifier
VSB Vestigial Side Band; modulation
method
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
WXGA 1280 × 768 (15:9)
XTAL Quartz crystal
XGA 1024 × 768 (4:3)
Y Luminance signal
Y/C Luminance (Y) and Chrominance (C)
signal
YPbPr Component video. Luminance and
scaled color difference signals (B-Y
and R-Y)
YUV Component video
23
LC-32LE631
LC-40LE631
LC-46LE631