Philips EJ3.0UPA Service Manual page 105

Circuit Descriptions, Abbreviation List, and IC Data Sheets
LS Last Status; The settings last chosen
by the customer and read and stored
in RAM or in the NVM. They are called
at start-up of the set to configure it
according to the customer's
preferences
LATAM Latin America
LCD Liquid Crystal Display
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
LPL LG.Philips LCD (supplier)
LS Loudspeaker
LVDS Low Voltage Differential Signalling
Mbps Mega bits per second
M/N Monochrome TV system. Sound
carrier distance is 4.5 MHz
MOP Matrix Output Processor
MOSFET Metal Oxide Silicon Field Effect
Transistor, switching device
MPEG Motion Pictures Experts Group
MPIF Multi Platform InterFace
NC Not Connected
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
OOB Out Of Band channel
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 (same as
"PWB")
PCM Pulse Code Modulation
PCMCIA Personal Computer Memory Card
International Association
PDP Plasma Display Panel
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
PSIP Program and System Information
Protocol: A standard for (broadcast)
digital television. PSIP consists of
channel mapping data, program guide
data, information about closed
captions and content advisory ratings,
and other data related to the current
and future programs.
PWB Printed Wiring Board (same as "PCB")
PWM Pulse Width Modulation
QAM Quadrature Amplitude Modulation;
modulation method
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
EJ3.0U PA
RC5 / RC6 Signal protocol from the remote
control receiver
ROM Read Only Memory
RRT This is one of the PSIP tables received
via an ATSC compliant transport
stream. In case of the OpenCable
compliant transport stream, RRT is
received via the out of band SI
SAM Service Alignment Mode
S/C Short Circuit
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 Sequence 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
SMPS Switched Mode Power Supply
SOG Sync On Green
SOPS Self Oscillating Power Supply
S/PDIF Sony Philips Digital InterFace
SRAM Static RAM
SSB Small Signal Board
STBY Standby
SVGA 800x600 (4:3)
SVHS Super Video Home System
SW Software
SXGA 1280x1024
TFT Thin Film Transistor
TMDS Transmission Minimized Differential
Signalling
uP Microprocessor
UXGA 1600x1200 (4:3)
V V-sync to the module
VESA Video Electronics Standards
Association
VGA 640x480 (4:3)
WXGA 1280x768 (15:9)
XGA 1024x768 (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
9. EN 105
2
C
2
C bus
2
C
2
C bus