Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
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.
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
ON/OFF LED
On/Off control signal for the LED
OAD
Over the Air Download
OSD
On Screen Display
PAL
Phase Alternating Line. Colour system
used mainly in Western Europe
(colour carrier = 4.433619 MHz) and
South America (colour carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
PC
Personal Computer
PCB
Printed Circuit Board (or PWB)
PDP
Plasma Display Panel
PIG
Picture In Graphic
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)
PWM
Pulse Width Modulation
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
colour signals for TV. By mixing levels
of R, G, and B, all colours (Y/C) are
reproduced.
RGBHV
Red, Green, Blue, Horizontal sync,
and Vertical sync
ROM
Read Only Memory
SAM
Service Alignment Mode
SC
SandCastle: two-level pulse derived
from sync signals
SC1-OUT
SCART output of the MSP audio IC
SC2-OUT
SCART output of the MSP audio IC
S/C
Short Circuit
SCL
Clock signal on I2C bus
SD
Standard Definition: 480i, 576i
SDA
Data signal on I2C bus
SDI
Samsung Display Industry
SDM
Service Default Mode
SDRAM
Synchronous DRAM
SECAM
SEequence Couleur Avec Memoire.
Colour system used mainly in France
and Eastern Europe. Colour carriers =
4.406250 MHz and 4.250000 MHz
SIF
Sound Intermediate Frequency
SMPS
Switch Mode Power Supply
SND
SouND
SOPS
Self Oscillating Power Supply
S/PDIF
Sony Philips Digital InterFace
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
UART
Universal Asynchronous Receiver/
Transmitter
uP
Microprocessor
VL
Variable Level out: processed audio
output toward external amplifier
TXT
TeleteXT
VBI
Vertical Blanking Interval
VESA
Video Electronics Standards
Association
VGA
Video Graphics Array
WD
Watch Dog
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= Colour 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 colour signal.
Y-OUT
Luminance-signal
YUV
Baseband component video (Y=
Luminance, U/V= Colour difference
signals)
