Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 142
LC4.9E AB
9.
e.g. service mode (a DST-emulator is
available in ComPair)
DTS
Digital Theatre System; A multi-
channel surround sound format,
similar to Dolby Digital
DVB
Digital Video Broadcast; A method of
transmitting digital audio and video,
based on MPEG2
DVB-T
DVB-Terrestrial; HDTV standard for
the EU
DVD
Digital Versatile Disc
EEPROM
Electrically Erasable and
Programmable Read Only Memory
EPG
Electronic Program Guide: system
used by broadcasters to transmit TV
guide information (= NexTView)
EU
Europe
EXT
EXTernal (source), entering the set by
SCART or by cinches (jacks)
FBL
Fast BLanking; DC signal
accompanying RGB signals. To blank
the video signal when it is returning
from the right side of the screen to the
left side. The video level is brought
down below the black video level
FBL-SC1-IN
Fast blanking signal for SCART1 in
FBL-SC2-IN
Fast blanking signal for SCART2 in
FBL-TXT
Fast Blanking Teletext
FM
Field Memory; A memory chip that is
capable of storing one or more TV
picture fields / Frequency Modulation;
A technique that sends data as
frequency variations of a carrier signal
FMR
Radio receiver that can receive the FM
Band 87.5 - 108 MHz
FRC
Frame Rate Converter
FRONT-C
Front input chrominance (SVHS)
FRONT-DETECT
Control line for detection of
headphone insertion, Service Mode
jumper, power failure detection
FRONT-Y_CVBS
Front input luminance or CVBS
(SVHS)
G-SC1-IN
Green SCART1/EXT1 in
G-SC2-IN
Green SCART2/EXT2 in
G-TXT
Green teletext
H
H_sync to the module
HA
Horizontal Acquisition; horizontal sync
pulse
HD
High Definition
HP
HeadPhone
I
Monochrome TV system. Sound
carrier distance is 6.0 MHz. VHF- and
UHF-band
I
2
C
Integrated IC bus
I
2
S
Integrated IC Sound bus
IC
Integrated Circuit
IF
Intermediate Frequency
Interlaced
Scan mode where two fields are used
to form one frame. Each field contains
half the number of the total amount of
lines. The fields are written in "pairs",
causing line flicker.
IR
Infra Red
IRQ
Interrupt ReQuest
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
LC04
Philips chassis name for LCD TV 2004
project
LCD
Liquid Crystal Display
LED
Light Emitting Diode; A semiconductor
diode that emits light when a current is
passed through it
LINE-DRIVE
Horizontal (line) deflection drive signal
(for the Line transistor)
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
LoudSpeaker
LVDS
Low Voltage Differential Signalling,
data transmission system for high
speed and low EMI communication.
M/N
Monochrome TV system. Sound
carrier distance is 4.5 MHz. M= 525
lines @ 60 Hz, N= 625 lines @ 50 Hz
MOSFET
Metal Oxide Semiconductor Field
Effect Transistor
MPEG
Motion Pictures Experts Group. An
ISO/IEC body that has given its name
to an image compressing scheme for
moving video
MSP
Multi-standard Sound Processor: ITT
sound decoder
MUTE
MUTE Line
NC
Not Connected
NICAM
Near Instantaneously Companded
Audio Multiplexing; This is a digital
sound system, mainly used 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
data such as alignment values, preset
stations
O/C
Open Circuit
ON/OFF LED
On/Off control signal for the LED
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)
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
Progressive Scan
Scan mode where all scan lines are
displayed in one frame at the same
time, creating a double vertical
resolution.
PWB
Printed Wiring Board (also called PCB
or CBA)
RAM
Random Access Memory
RC
Remote Control transmitter
RC5 or 6
Remote Control system 5 or 6, the
signal from the remote control receiver
RGB
Red, Green, and Blue colour space;
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
