Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.8
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/G
Monochrome TV system. Sound
carrier distance is 5.5 MHz
BTSC
Broadcast Television System
Committee
CAM
Conditional Access Module
CBA
Circuit Board Assembly (or PWB)
CEC
Consumer Electronics Control bus;
remote control bus on HDMI
connections
CI
Common Interface; E.g PCMCIA slot
for a CAM in a set top box
CL
Constant Level: audio output to
connect with an external amplifier
CLUT
Colour Look Up Table
ComPair
Computer aided rePair
COFDM
Coded Orthogonal Frequency Division
Multiplexing; A multiplexing technique
that distributes the data to be
transmitted over many carriers
CSM
Customer Service Mode
CVBS
Composite Video Blanking and
Synchronisation
CVBS-MON
CVBS monitor signal
CVBS-TER-OUT
CVBS terrestrial out
CVI
Component Video Input
DAC
Digital to analogue Converter
DBE
Dynamic Bass Enhancement: extra
low frequency amplification
DDC
Display Data Channel; is a part of the
“Plug and Play” feature
DFU
Directions For Use: owner's manual
DMB-TH
Digital Multimedia Broadcast -
Terrestrial/Hand-held (Chinese digital
television terrestrial/hand-held
broadcasting system standard)
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
DVB(T)
Digital Video Broadcast; An MPEG2
based standard for transmitting digital
audio and video. T= Terrestrial
DVD
Digital Versatile Disc
DVI
Digital Visual Interface
DW
Double Window
ED
Enhanced Definition: 480p, 576p
EDID
Extended Display Identification Data
(VESA standard)
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-TXT
Fast Blanking Teletext
FLASH
FLASH memory
FM
Field Memory / Frequency Modulation
FMR
FM Radio
FRC
Frame Rate Converter
FTV
Flat TeleVision
H
H_sync to the module
HD
High Definition: 720p, 1080i, 1080p
HD DNM
Digital Natural Motion for High-
Definition TV
HDCP
High-bandwidth Digital Content
Protection; A “key” encoded into the
HDMI/DVI signal that prevents video
data piracy. If a source is HDCP coded
and connected via HDMI/DVI without
the proper HDCP decoding, the
picture is put into a “snow vision” mode
or changed to a low resolution. For
normal content distribution, the source
and the display device must be
enabled for HDCP “software key”
decoding
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
IBO(Z)
Intelligent Bolt On module. Z= Zapper;
module for DVB reception.
IC
Integrated Circuit
IF
Intermediate Frequency
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
LC08
Philips chassis name for LCD TV 2008
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.
MADI
Motion Adaptive De-Interlacing
M/N
Monochrome TV system. Sound
carrier distance is 4.5 MHz
MOSFET
Metal Oxide Semiconductor Field
Effect Transistor
MPEG
Motion Pictures Experts Group
