Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 112 A02U AA9.
9.11 Abbreviation list
Table 9-1 Abbreviations
Abbreviation Description
0/6/12 SCART switch control signal on A/V board. 0 = loop through (AUX
to TV), 6 = play 16:9 format, 12 = play 4:3 format
2CS 2 Carrier Stereo
A2 Commonly known as two carriers sound (2CS) system
AC (or ac) Alternating Current
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
ADOC Analogue Digital One Chip
AFC Automatic Frequency Control: control signal used to tune to the
correct frequency
AGC Automatic gain control (feedback) signal to the tuner.
AM Amplitude Modulation
ANR Automatic Noise Reduction: one of the algorithms of Auto TV
AP / A/P Asia Pacific
AR Aspect Ratio: 4 by 3 or 16 by 9
ASD Automatic Standard Detection
AV External Audio Video
AVL Automatic Volume Level control
BBlue
B/G Monochrome TV system. Sound carrier distance is 5.5 MHz
BBD Black Bar Detection
BCL Beam Current Limiter
BC-PROT PROTection signal to the microprocessor for a too high Beam
Current.
BG System B and G
BLC-INFO BLack Current INFO
BLD Black Level Detection
BS Black Stretch
BTSC Broadcast Television Standard Committee. Multiplex FM stereo
sound system, originating from the USA and used e.g. in LATAM
and AP-NTSC countries
C Chroma (video) / Centre channel (audio)
CL Constant Level: audio output to connect with an external amplifier
CLUT Colour Look Up Table
ComPair Computer aided rePair
CRT Cathode Ray Tube or picture tube
CSM Customer Service Mode
CTI Colour Transient Improvement: manipulates steepness of chroma
transients
CVBS Composite Video Blanking and Synchronization
CVI Component Video Input
D/K Monochrome TV system. Sound carrier distance is 6.5 MHz
DAC Digital to Analogue Converter
DBE Dynamic Bass Enhancement: extra low frequency amplification
DC (or dc) Direct Current
DCC Dynamic Contrast Control
DC-filament Filament supply voltage
DEGAUSS Control line. Logic LOW to enable CRT degaussing. Logic HIGH
to disable the CRT degaussing.
DFU Directions For Use: owner's manual
DNR Digital Noise Reduction: noise reduction feature of the set
DOP Digital Output Processor (Part of ADOC which takes care of RGB
control and delection)
DPL Dolby Pro Logic
DRAM Dynamic RAM
DS Digital Scan
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)
DTS Digital Theatre Sound
DVD Digital Versatile Disc
DVI(-d) Digital Visual Interface (d= digital only)
DW Double Window
DYN-FASE-
COR
Dynamic phase correction, to correct the phase of the H-drive
EEPROM Electrically Erasable and Programmable Read Only Memory
EHT Extra High Tension
EHT-INFO Extra High Tension INFOrmation, used for contrast reduction,
vertical and horizontal amplitude correction, beam current
protection, and flash detection
EMI Electro Magnetic Interference
EPG Electronic Program Guide: system used by broadcasters to
transmit TV guide information (= NexTView)
EPLD Erasable Programmable Logic Device
EU Europe
EW East West, related to horizontal deflection of the set
EW-DRIVE East -West correction drive signal.
EXT EXTernal (source), entering the set by SCART or by Cinches
(jacks)
FBL Fast BLanking: DC signal accompanying RGB signals
FBX Feature Box: module which contains 100 Hz processing, Pixel
Plus, and AutoTV algorithms (FBX6= based on PICNIC, FBX7=
based on PICNIC and Eagle)
FE Front End
Field Each interlaced broadcast FRAME is composed of two Fields,
each Field consists of either Odd or Even lines
FILAMENT Filament of CRT
FLASH FLASH memory
FM Field Memory / Frequency Modulation
FM Radio Audio receiver which can receive the FM Band 87.5 - 108 MHz
FMR FM Radio
Frame A complete TV picture comprising of all lines (625/525)
FRAMEDRIV
E -
Differential frame (vertical) drive signal (negative)
FRAMEDRIV
E+
Differential frame (vertical) drive signal (positive)
FRC Frame Rate Converter
FRONT-
DETECT
Control line for detection of headphone insertion, Service Mode
jumper, power failure detection.
FRONT-
Y_CVBS
Front input luminance or CVBS (SVHS)
GGreen
Gb/s Giga bits per second
H H_sync to the module
H_2FH Horizontal sync input for the 2fH source.
H_A50 Horizontal Acquisition 1fH: horizontal sync pulse coming out of the
HIP
H_D100 Horizontal Drive 2fH: horizontal sync pulse coming out of the
feature-box
H_DRIVE Horizontal Drive
H_FLYBACK Horizontal Flayback
H_OUT H_sync output of the module
H_OUT Horizontal Output pulse
HA Horizontal Acquisition: horizontal sync pulse coming out of the
BOCMA
HD High Definition
HDMI High Definition Multimedia Interface: Interface that supports RGB
or YCbCr digital video at rates up to 5Gbps, up to eight channels
of digital audio, along with a AV-link capability. Is meant as
succesor of DVI.
HEADPHONE
-L
Stereo headphone (Left) signal output.
HEADPHONE
-R
Stereo headphone (Right) signal output.
HFB Horizontal Flyback Pulse: horizontal sync pulse from large signal
deflection
HP HeadPhone
HW Hardware
I Monochrome TV system. Sound carrier distance is 6.0 MHz
I2C Integrated IC bus (same as IIC)
I2S Integrated IC Sound bus
IC Integrated Circuit
IDRIVE- Vertical drive -
IDRIVE+ Vertical drive +
IF Intermediate Frequency
IF-TER IF signal from main tuner
IIC Integrated IC bus (same as I2C)
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.
IO In/Out
IR Infra Red
IROM Internal ROM (inside uP)
IRQ Interrupt ReQuest
ITV Institutional TV
JTAG Joint Test Action Group. Definition for a standardised serial test
interface
KEYB Front panel keyboard
Abbreviation Description
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