Philips 29PT5458/01 Service Manual page 65

Circuit Descriptions, List of Abbreviations, and IC Data Sheets
IIC Integrated IC bus
ITV Institutional TV
LATAM Latin American countries like Brazil,
Argentina, etc.
LED Light Emitting Diode
L/L' Monochrome TV system. Sound
carrier distance is 6.5 MHz. L' is Band
I, L is all bands except for Band I
LS Large Screen or Loudspeaker
M/N Monochrome TV system. Sound
carrier distance is 4.5 MHz
NC Not Connected
NICAM Near Instantaneous Compounded
Audio Multiplexing. This is a digital
sound system, mainly used in Europe.
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 e.g. alignments
OB Option Bit
OC Open Circuit
OP Option Byte
OSD On Screen Display
PAL Phase Alternating Line. Color system
mainly used in West Europe (color
carrier = 4.433619 MHz) and South
America (color carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCB Printed Circuit board
PLL Phase Locked Loop. Used for e.g.
FST tuning systems. The customer
can give directly the desired frequency
POR Power-On Reset
PTP Picture Tube Panel (or CRT-panel)
RAM Random Access Memory
RC Remote Control handset
RGB Red, Green, and Blue video signals
ROM Read Only Memory
SDAM Service Default / Alignment Mode
SAP Second Audio Program
SC Sandcastle: pulse derived from sync
signals
S/C Short Circuit
SCL Serial Clock
SDA Serial Data
SECAM SEequence Couleur Avec Memoire.
Color system mainly used in France
and East Europe. Color carriers =
4.406250 MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
SS Small Screen
STBY Standby
SVHS Super Video Home System
SW Software
THD Total Harmonic Distortion
TXT Teletext
uP Microprocessor
UOC Ultimate One Chip
V Vertical sync signal
V_BAT Main supply voltage for the deflection
stage (mostly 141 V)
V-chip Violence Chip
VCR Video Cassette Recorder
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
XTAL Quartz crystal
YC Luminance (Y) and Chrominance (C)
signal
L04E AA 9. EN 83