Philips LC4.9E, Руководство по обслуживанию

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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