Philips 32PHS5505/12, Руководство по обслуживанию

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Multiplexing. This is a digital sound
system, mainly used in Europe.
NTC Negative Temperature Coefficient, non-
linear resistor
NTSC National Television Standard Committee.
Color system mainly used in North
America and Japan. Color carrier NTSC
M/N= 3.579545 MHz, NTSC 4.43=
4.433619 MHz (this is a VCR norm, it is
not transmitted off-air)
NVM Non-Volatile Memory: IC containing TV
related data such as alignments
O/C Open Circuit
OSD On Screen Display
OAD
Over the Air Download. Method of
software upgrade via RF transmission.
Upgrade software is broadcasted in TS
with TV channels.
OTC On screen display Teletext and Control;
also called Artistic (SAA5800)
P50 Project 50: communication protocol
between TV and peripherals
PAL Phase Alternating Line. Color system
mainly used in West Europe (colour
carrier = 4.433619 MHz) and South
America (colour carrier PAL M = 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 2 C
SCL-F CLock Signal on Fast I 2 C bus
SD Standard Definition
SDA Serial Data I
2 C
SDA-F DAta Signal on Fast I
2
C bus
SDI Serial Digital Interface, see “ITU-656”
SDRAM Synchronous DRAM
SECAM
SEequence Couleur Avec Mémoire.
Colour system mainly used in France and
East Europe. Colour 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)
SVHS Super Video Home System