Circuit Descriptions, Abbreviation List, And Ic Data Sheets; Abbreviation List - Philips 26HF5473/10 Service Manual

EN 26 9. LC4.3HE AA

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets

Index of this chapter:
9.1 Introduction

9.2 Abbreviation List

9.3 IC Data Sheets
9.1 Introduction
The LC4.3 LCD iTV is a Hotel TV based on the LC4.3 chassis.
For a detailed circuit description, please use that specific
manual (order code on front page). The iTV specific board in
this chassis (i-Board) is for Service a "black box", and therefore
must be replaced completely when defective (board swap).
9.2 Abbreviation List
0/6/12
1080i
1080p
2CS
480i
480p
ACI
ADC
AFC
AGC
AM
AP or A/P
AR
ASD
AV
B-SC1-IN
B-SC2-IN
B-TXT
B/G
C-FRONT
CBA
CL
CLUT
COFDM
COLUMBUS
ComPair
CSM
CVBS
Circuit Descriptions, Abbreviation List, and IC Data Sheets
SCART switch control signal on A/V
board. 0 = loop through (AUX to TV),
6 = play 16:9 format, 12 = play 4:3
format
1080 visible lines, interlaced
1080 visible lines, progressive scan
2 Carrier Sound (or 2 Channel Stereo)
480 visible lines, interlaced
480 visible lines, progressive scan
Automatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
Analogue to Digital Converter
Automatic Frequency Control; Control
signal used to tune and lock to the
correct frequency
Automatic gain control (feedback)
signal to the tuner. This circuit ensures
a constant output amplitude
regardless of the input amplitude
Amplitude Modulation; A "data
encoding to a carrier" method, such
that the carrier amplitude is
proportional to the data value
Asia Pacific
Aspect Ratio: 4 by 3 or 16 by 9
Automatic Standard Detection
External Audio Video
Blue SCART1/EXT1 in
Blue SCART2/EXT2 in
Blue TeleteXT
Monochrome TV system. Sound
carrier distance is 5.5 MHz. B= VHF-
band, G= UHF-band
Chrominance front input
Circuit Board Assembly (also called
PCB or PWB)
Constant Level: audio output to
connect with an external amplifier
Colour Look-Up Table
Coded Orthogonal Frequency Division
Multiplexing: a multiplexing technique,
that distributes the data to be
transmitted, over many carriers
COLour LUMinance Baseband
Universal Subsystem. IC performing
noise reduction and 2D/3D comb
filtering
Computer aided rePair. A tool for
diagnosing a TV through a PC
controlled interface
Customer Service Mode
Composite Video and Blanking Signal;
A single video signal that contains
luminance, colour, and timing
information
DAC Digital to Analogue Converter
DBE Dynamic Bass Enhancement: extra
low frequency amplification
DCM Data Communications Module; the
device connected to a Philips
Institutional TV that supports
SmartPort communications
DFU Directions For Use: Owner's manual
DNR Dynamic Noise Reduction / Digital
Noise Reduction; Noise reduction
feature of the set
DRAM Dynamic RAM; dynamically refreshed
RAM
DSP Digital Signal Processing
DST Dealer Service Tool; Special remote
control designed for dealers to enter
e.g. service mode (a DST-emulator is
available in ComPair)
DVI Digital Visual Interface
EEPROM Electrically Erasable and
Programmable Read Only Memory
EPG Electronic Program Guide: system
used by broadcasters to transmit TV
guide information (= NexTView)
EPLD Erasable Programmable Logic Device
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
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
FRC Frame Rate Converter
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
2
C Integrated IC bus
I
2
I S Integrated IC Sound bus
IBO Intelligent Bolt-On module
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
to the customer's preferences
LATAM LATin AMerica
LC04 Philips chassis name for LCD TV 2004
project
LCD Liquid Crystal Display