Philips 47PFL5403, Руководство по обслуживанию

Страница: 102 / 115

Circuit Descriptions, Abbreviation List, and IC Data Sheets EN 102 LC8.2A LA 9.
MSP Multi-standard Sound Processor: ITT
sound decoder
MUTE MUTE Line
NAFTA North American Free Trade
Association: Trade agreement
between Canada, USA and Mexico
NC Not Connected
NICAM Near Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, used mainly in Europe.
NTSC National Television Standard
Committee. Colour system used
mainly in North America and Japan.
Colour 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 (for example, options)
O/C Open Circuit
ON/OFF LED On/Off control signal for the LED
OAD Over the Air Download
OSD On Screen Display
PAL Phase Alternating Line. Colour system
used mainly in Western Europe
(colour carrier = 4.433619 MHz) and
South America (colour carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PC Personal Computer
PCB Printed Circuit Board (or PWB)
PDP Plasma Display Panel
PIG Picture In Graphic
PIP Picture In Picture
PLL Phase Locked Loop. Used, for
example, in FST tuning systems. The
customer can directly provide the
desired frequency
PSU Power Supply Unit
PWB Printed Wiring Board (or PCB)
RAM Random Access Memory
RC Remote Control transmitter
RC5 (6) Remote Control system 5 (6), the
signal from the remote control receiver
RF Radio Frequency
RGB Red, Green, and Blue. The primary
colour signals for TV. By mixing levels
of R, G, and B, all colours (Y/C) are
reproduced.
RGBHV Red, Green, Blue, Horizontal sync,
and Vertical sync
ROM Read Only Memory
SAM Service Alignment Mode
SC SandCastle: two-level pulse derived
from sync signals
SC1-OUT SCART output of the MSP audio IC
SC2-OUT SCART output of the MSP audio IC
S/C Short Circuit
SCL Clock signal on I2C bus
SD Standard Definition: 480i, 576i
SDA Data signal on I2C bus
SDI Samsung Display Industry
SDM Service Default Mode
SDRAM Synchronous DRAM
SECAM SEequence Couleur Avec Memoire.
Colour system used mainly in France
and Eastern Europe. Colour carriers =
4.406250 MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
SMPS Switch Mode Power Supply
SND SouND
SOPS Self Oscillating Power Supply
S/PDIF Sony Philips Digital InterFace
SRAM Static RAM
SSB Small Signal Board
STBY Stand-by
SVHS Super Video Home System
SW Sub Woofer / SoftWare / Switch
THD Total Harmonic Distortion
TXT TeleteXT
uP Microprocessor
VL Variable Level out: processed audio
output toward external amplifier
VCR Video Cassette Recorder
VGA Video Graphics Array
WD Watch Dog
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
XTAL Quartz crystal
YPbPr Component video (Y= Luminance, Pb/
Pr= Colour difference signals B-Y and
R-Y, other amplitudes w.r.t. to YUV)
Y/C Video related signals: Y consists of
luminance signal, blanking level and
sync; C consists of colour signal.
Y-OUT Luminance-signal
YUV Baseband component video (Y=
Luminance, U/V= Colour difference
signals)