Abbreviation List - Philips 21PT2327/79 Service Manual

Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.4

Abbreviation List

1080i
1080p
ADC
AFC
AGC
AM
AR
AV
B/G
BTSC
CBA
CVBS
CVI
DAC
DFU
DNR
DRAM
DSP
DVD
EEPROM
EXT
FBL
FM
H
HD
HP
I
I2C
IC
IF
IR
IRQ
Last Status
LATAM
LED
LS
M/N
MOSFET
MUTE
NAFTA
NC
NTSC
NVM
O/C
OSD
PAL
1080 visible lines, interlaced
1080 visible lines, progressive scan
Analogue to Digital Converter
Automatic Frequency Control: control
signal used to tune to the correct
frequency
Automatic Gain Control: algorithm that
controls the video input of the feature
box
Amplitude Modulation
Aspect Ratio: 4 by 3 or 16 by 9
Audio Video
Monochrome TV system. Sound
carrier distance is 5.5 MHz
Broadcast Television System
Committee
Circuit Board Assembly (or PWB)
Composite Video Blanking and
Synchronization
Component Video Input
Digital to analogue Converter
Directions For Use: owner's manual
Dynamic Noise Reduction
Dynamic RAM
Digital Signal Processing
Digital Versatile Disc
Electrically Erasable and
Programmable Read Only Memory
EXTernal (source), entering the set by
SCART or by cinches (jacks)
Fast Blanking: DC signal
accompanying RGB signals
Field Memory / Frequency Modulation
H_sync
High Definition: 720p, 1080i, 1080p
Head Phone
Monochrome TV system. Sound
carrier distance is 6.0 MHz
Integrated IC bus
Integrated Circuit
Intermediate Frequency
Infra Red
Interrupt ReQuest
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
LATin AMerica
Light Emitting Diode
Loud Speaker
Monochrome TV system. Sound
carrier distance is 4.5 MHz
Metal Oxide Semiconductor Field
Effect Transistor
MUTE Line
North American Free Trade
Association: Trade agreement
between Canada, USA and Mexico
Not Connected
National Television Standard
Committee. Color system used mainly
in North America and Japan. Color
carrier NTSC M/N = 3.579545 MHz,
NTSC 4.43 = 4.433619 MHz (this is a
VCR norm, it is not transmitted off-air)
Non Volatile Memory: IC containing
TV related data (for example, options)
Open Circuit
On Screen Display
Phase Alternating Line. Color system
used mainly in Western Europe (color
TC8.1A CA
carrier = 4.433619 MHz) and South
America (color carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PCB Printed Circuit Board (or PWB)
PIP Picture In Picture
PLL Phase Locked Loop. Used, for
example, in FST tuning systems. The
customer can directly provide the
desired frequency
PSU Power Supply Unit
PWB Printed Wiring Board (or PCB)
RAM Random Access Memory
RC Remote Control transmitter
RC5 (6) Remote Control system 5 (6), the
signal from the remote control receiver
RF Radio Frequency
RGB Red, Green, and Blue. The primary
color signals for TV. By mixing levels
of R, G, and B, all colors (Y/C) are
reproduced.
RGBHV Red, Green, Blue, Horizontal sync,
and Vertical sync
ROM Read Only Memory
SC SandCastle: two-level pulse derived
from sync signals
S/C Short Circuit
SCL Clock signal on I2C bus
SD Standard Definition: 480i, 576i
SDA Data signal on I2C bus
SDRAM Synchronous DRAM
SECAM SEequence Couleur Avec Memoire.
Color system used mainly in France
and Eastern Europe. Color carriers =
4.406250 MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
SMPS Switch Mode Power Supply
SND SouND
SOPS Self Oscillating Power Supply
SRAM Static RAM
SSB Small Signal Board
STBY Stand-by
SVHS Super Video Home System
SW Sub Woofer / SoftWare / Switch
THD Total Harmonic Distortion
TXT TeleteXT
uP Microprocessor
VL Variable Level out: processed audio
output toward external amplifier
VCR Video Cassette Recorder
VGA Video Graphics Array
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
XTAL Quartz crystal
YPbPr Component video (Y= Luminance, Pb/
Pr= Color difference signals B-Y and
R-Y, other amplitudes w.r.t. to YUV)
Y/C Video related signals: Y consists of
luminance signal, blanking level and
sync; C consists of color signal.
Y-OUT Luminance-signal
YUV Baseband component video (Y=
Luminance, U/V= Color difference
signals)
9. EN 33