Circuit descriptions and abbreviation list
GB 96
EM1A
9.
9.2
Abbreviation list
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 sets
directly from cable network by
means of a predefined TXT page
ADC
Analogue 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
featurebox
AI
Artificial Intelligence
AM
Amplitude Modulation
ANR
Automatic Noise Reduction: one of
the algorithms of Auto TV
AR
Aspect Ratio: 4 by 3 or 16 by 9
ASF
Auto Screen Fit: algorithm that
adapts aspect ratio to remove
horizontal black bars but without
throwing away video information
ATV
See Auto TV
AUDIO_C
Audio Centre
AUDIO_L
Audio Left
AUDIO_R
Audio Right
AUDIO_SL
Audio Surround Left
AUDIO_SW
Audio Subwoofer
AUDIO-L-PROC
Audio left processed
AUDIO-R-PROC
Audio right processed
AUDIO-SR
Audio surround right
Auto TV
Name for the combination of picture
features/improvements, which work
automatically (ANR/Auto sharpness/
Auto Histo/ambient light).
BC-PROT
Beam current protection
BG
System B and G
BLC-INFO
Black current information
B-SC1-IN
Blue EXT1 in
B-SC2-IN
Blue EXT2 in
B-TXT
Blue teletext
CENTER
Centre speaker
C-FRONT
Chrominance front input
CL
Constant Level: audio output to
connect with an external amplifier
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
Synchronisation
CVBS-SC1-IN
CVBS EXT1 in
CVBS-SC2 OUT
CVBS EXT2 out
CVBS-SC2-IN
CVBS EXT2 in
CVBS-SC3-IN
CVBS EXT3 in
CVBS-SC4-IN
CVBS EXT4 IN
CVBS-TER
CVBS terrestrial
CVBS-TXT-DS-
OUT
CBVBS teletext Dual Screen out
CVBS-TXT-OUT
CVBS teletext out
CVBS-Y-FRONT
CVBS luminance front input
DAC-HOP
Digital analogue converter HOP IC
DBE
Dynamic Bass Enhancement: extra
low frequency amplification
DC-filament
Filament supply voltage
DC-PROT
DC protection
DFU
Direction For Use: description for the
end user
DNR
Digital Noise Reduction: noise
reduction feature of the box
DSP
Digital Signal Processing
DST
Dealer Service Tool: special remote
control designed for dealers to enter
e.g. service mode
DVD
Digital Versatile Disc
DYN-FASE-COR
Dynamic phase correction
EHT
Extra High Tension
EHT-INFO
Extra High Tension information
EPG
Electronic Program Guide: system
used by broadcasters to transmit TV
guide information (= NexTView)
EW
East West, related to horizontal
deflection of the set
EXT
External (source), entering the set
via EXT or via cinches
FBL
Fast Blanking: DC signal
accompanying RGB signals
FBL-SC1-IN
Fast blanking signal for EXT1 in
FBL-SC2-IN
Fast blanking signal for EXT2 in
FBL-TXT
Fast Blanking Teletext
FBX
Feature Box: part of small signal /
separate module which contains 100
Hz processing, extra featuring and
AutoTV algorithms
FEAT-U
U from Feature Box
FEAT-V
V from Feature Box
FEAT-Y
Y from Feature Box
FILAMENT
Filament of CRT
FLASH
Flash memory
FM
Field Memory or Frequency
Modulation
FMS
Functional Module Specification:
document that describes an isolated
hardware function
FRONT-C
Front input chrominance (SVHS)
FRONT-DETECT
Front input detection
FRONT-Y_CVBS
Front input luminance or CVBS
(SVHS)
FRS
Functional Requirement
Specification: software specification
document
G-SC1-IN
Green EXT1 in
G-SC2-IN
Green EXT2 in
G-TXT
Green teletext
HA
Horizontal Acquisition: horizontal
sync pulse coming out of the HIP
HD100
Horizontal Drive: horizontal sync
pulse coming out of the featurebox
HDTV
High Definition TV: highest
resolution defined by the ATSC
standard (1080 lines and 1920
horizontal pixels, referred to as
1080i) The second HDTV standard,
720p x 1280 is not used in EM1A
chassis (3fH standard not feasible)
Headroom
Extra margin provision to avoid
clipping of signals
HEATER
Heater (Filament)
HFB
Horizontal Flyback Pulse: horizontal
sync pulse from large signal
deflection
HFB+13V
Non rectified output 13V-winding
LOT
HIP
High-end video Input Processor:
video and chroma decoder of EM1A
HOP
High-end video Output Processor:
video, sync and geometry controller
of EM1A
HP
Headphone
HSI
Hardware Software Interface
IN-FRONT-SNDL
Sound left front in
IN-FRONT-SNDR
Sound right front in
IN-SC1-B
In EXT1 Blue