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Philips LC4.31E Service Manual Page 142

Chassis lc4.31e aa.
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EN 142
9.
LC4.31E AA
EEPROM
EPG
EU
EXT
FBL
FM
FRC
H
HA
HD
HP
I
2
I
C
2
I
S
IBO
IC
IF
Interlaced
IR
IRQ
Last Status
LATAM
LC04
LCD
LED
L/L'
LS
LVDS
M/N
MOSFET
MPEG
MSP
MUTE
NC
NICAM
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Electrically Erasable and
Programmable Read Only Memory
Electronic Program Guide: system
used by broadcasters to transmit TV
guide information (= NexTView)
Europe
EXTernal (source), entering the set by
SCART or by cinches (jacks)
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
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
Frame Rate Converter
H_sync to the module
Horizontal Acquisition; horizontal sync
pulse
High Definition
HeadPhone
Monochrome TV system. Sound
carrier distance is 6.0 MHz. VHF- and
UHF-band
Integrated IC bus
Integrated IC Sound bus
Intelligent Bolt-On module
Integrated Circuit
Intermediate Frequency
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.
Infra Red
Interrupt ReQuest
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
LATin AMerica
Philips chassis name for LCD TV 2004
project
Liquid Crystal Display
Light Emitting Diode; A semiconductor
diode that emits light when a current is
passed through it
Monochrome TV system. Sound
carrier distance is 6.5 MHz. L' is Band
I, L is all bands except for Band I
LoudSpeaker
Low Voltage Differential Signalling,
data transmission system for high
speed and low EMI communication.
Monochrome TV system. Sound
carrier distance is 4.5 MHz. M= 525
lines @ 60 Hz, N= 625 lines @ 50 Hz
Metal Oxide Semiconductor Field
Effect Transistor
Motion Pictures Experts Group. An
ISO/IEC body that has given its name
to an image compressing scheme for
moving video
Multi-standard Sound Processor: ITT
sound decoder
MUTE Line
Not Connected
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)
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
S/C
Short Circuit
SCART
Syndicat des Constructeurs
d'Appareils Radiorécepteurs et
Téléviseurs; This is a 21-pin connector
used in EU, that carries various audio,
video, and control signals (it is also
called Péritel connector)
SCL
Serial CLock Signal on I
SD
Standard Definition
SDA
Serial DAta Signal on I
SDRAM
Synchronous DRAM
SECAM
SÉquence Couleur Avec Mémoire;
Colour system mainly used in France
and East Europe. The chroma is FM
modulated and the R-Y and B-Y
signals are transmitted line
sequentially. Colour carriers=
4.406250 MHz and 4.250000 MHz
SIF
Sound Intermediate Frequency
SMPS
Switched Mode Power Supply
SND
SouND
SOPS
Self Oscillating Power Supply
SRAM
Static RAM
STBY
STandBY
SVHS
Super Video Home System
SW
Software or Subwoofer or Switch
THD
Total Harmonic Distortion
TXT
Teletext; TXT is a digital addition to
analogue TV signals that contain
textual and graphical information (25
rows × 40 columns). The information is
2
C bus
2
C bus

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