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Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.3
Abbreviation List
1080i
1080 visible lines, interlaced
1080p
1080 visible lines, progressive scan
2CS
2 Carrier Sound
2DNR
Spatial (2D) Noise Reduction
3DNR
Temporal (3D) Noise Reduction
480i
480 visible lines, interlaced
480p
480 visible lines, progressive scan
AARA
Automatic Aspect Ratio Adaptation:
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up the original aspect ratio
ACI
Automatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
ADC
Analogue to Digital Converter
AFC
Automatic Frequency Control: control
signal used to tune to the correct
frequency
AGC
Automatic Gain Control: algorithm that
controls the video input of the feature
box
AM
Amplitude Modulation
AUO
Acer Unipack Optronics
AP
Asia Pacific
AR
Aspect Ratio: 4 by 3 or 16 by 9
ASD
Automatic Standard Detection
AV
Audio Video
B-SC1-IN
Blue SCART1 in
B-SC2-IN
Blue SCART2 in
B-TXT
Blue teletext
B/G
Monochrome TV system. Sound
carrier distance is 5.5 MHz
BTSC
Broadcast Television System
Committee
C-FRONT
Chrominance front input
CBA
Circuit Board Assembly (or PWB)
CL
Constant Level: audio output to
connect with an external amplifier
CLUT
Colour Look Up Table
ComPair
Computer aided rePair
CSM
Customer Service Mode
CVBS
Composite Video Blanking and
Synchronisation
CVBS-EXT
CVBS signal from external source
(VCR, VCD, etc.)
CVBS-INT
CVBS signal from Tuner
CVBS-MON
CVBS monitor signal
CVBS-TER-OUT
CVBS terrestrial out
DAC
Digital to Analogue Converter
DBE
Dynamic Bass Enhancement: extra
low frequency amplification
DFU
Directions For Use: owner's manual
DNR
Dynamic Noise Reduction
DRAM
Dynamic RAM
DSP
Digital Signal Processing
DST
Dealer Service Tool: special
(European) remote control designed
for service technicians
DTS
Digital Theatre Sound
DVD
Digital Versatile Disc
DVI
Digital Visual Interface
DW
Double Window
ED
Enhanced Definition: 480p, 576p
EEPROM
Electrically Erasable and
Programmable Read Only Memory
EU
EUrope
EXT
EXTernal (source), entering the set by
SCART or by cinches (jacks)
FBL
Fast Blanking: DC signal
accompanying RGB signals
FBL-SC1-IN
Fast blanking signal for SCART1 in
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)
FTV
Flat TeleVision
G-SC1-IN
Green SCART1 in
G-SC2-IN
Green SCART2 in
G-TXT
Green teletext
H
H_sync to the module
HD
High Definition: 720p, 1080i, 1080p
HDMI
High Definition Multimedia Interface,
digital audio and video interface
HP
Head Phone
I
Monochrome TV system. Sound
carrier distance is 6.0 MHz
I2C
Integrated IC bus
I2S
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
the customers wishes
LATAM
LATin AMerica
LC04
Philips chassis name for LCD TV 2004
project
LCD
Liquid Crystal Display
LED
Light Emitting Diode
L/L'
Monochrome TV system. Sound
carrier distance is 6.5 MHz. L' is Band
I, L is all bands except for Band I
LPL
LG Philips LCD
LS
Loud Speaker
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
MUTE
MUTE Line
NAFTA
North American Free Trade
Association: Trade agreement
between Canada, USA and Mexico
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
