Philips LC4.1E Service Manual page 57

Circuit Descriptions, Abbreviation List, and IC Data Sheets
FBL-SC2-IN Fast blanking signal for SCART2 in
FBL-TXT Fast Blanking Teletext
FLASH FLASH memory
FM Field Memory / Frequency Modulation
FMR FM Radio
FRC Frame Rate Converter
FRONT-C Front input chrominance (SVHS)
FRONT-DETECT Front input detection
FRONT-Y_CVBS Front input luminance or CVBS
(SVHS)
G-SC1-IN Green SCART1 in
G-SC2-IN Green SCART2 in
G-TXT Green teletext
H H_sync to the module
HA Horizontal Acquisition: horizontal sync
pulse coming out of the BOCMA
HD High Definition
HP HeadPhone
I Monochrome TV system. Sound
carrier distance is 6.0 MHz
2
I C Integrated IC bus
2
I 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
ITV Institutional TV
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
the customers wishes
LATAM LATin AMerica
LC04 Philips chassis name for LCD TV 2004
project
LCD Liquid Crystal Display
LED Light Emitting Diode
LINE-DRIVE Line drive signal
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
MOSFET Metal Oxide Semiconductor Field
Effect Transistor
MPEG Motion Pictures Experts Group
MSP Multi-standard Sound Processor: ITT
sound decoder
MTV Mainstream TV
MUTE MUTE Line
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
OSD On Screen Display
LC4.1E AB
P50 Project 50 communication: protocol
between TV and peripherals
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.
PSU Power Supply Unit
PWB Printed Wiring Board (or PCB)
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. 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
SIF Sound Intermediate Frequency
SC SandCastle: two-level pulse derived
from sync signals
SC1-OUT SCART output of the MSP audio IC
SC2-B-IN SCART2 Blue in
SC2-C-IN SCART2 chrominance in
SC2-OUT SCART output of the MSP audio IC
S/C Short Circuit
SCART Syndicat des Constructeurs
d'Appareils Radiorecepteurs et
Televiseurs
SCL CLock Signal on I2C bus
SD Standard Definition
SDA DAta Signal on I2C bus
SDRAM Synchronous DRAM
SECAM Séquence Couleur Avec Mémoire.
Colour system used mainly in France
and Eastern Europe. Colour carriers =
4.406250 MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
STB Set Top Box: separate tuner/decoder
combined with e.g. a monitor, a TV set
or an audio/hi-fi system
SMPS Switch Mode Power Supply
SND SouND
SNDL or SNDR SouND Left or Right
SNDL-SC1-IN Sound left SCART1 in
SNDR-SC1-IN Sound right SCART1 in
SNDS-VL-OUT Surround sound left variable level out
SNDS-VR-OUT Surround sound right variable level out
SOPS Self Oscillating Power Supply
S/PDIF Sony Philips Digital InterFace
SRAM Static RAM
SSB Small Signal Board
STBY STandBY
SVHS Super Video Home System
SW SubWoofer / SoftWare
THD Total Harmonic Distortion
TXT TeleteXT
uP Microprocessor
VA Vertical Acquisition
9. EN 57