Philips 32PF9968/10 Service Manual page 82

EN 82 9. LC4.8L LA
FRONT-Y_CVBS
H
HA
HD
HP
I
2
I C
2
I S
IC
IF
IR
IRQ
LATAM
LCD
LED
L/L'
LS
LVDS
M/N
MOSFET
MSP
MUTE
NC
NICAM
NTSC
NVM
O/C
OSD
PAL
PC
PCB
PIP
PLL
PWB
RAM
RC
RGB
RGBHV
ROM
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Front input luminance or CVBS
(SVHS)
H_sync to the module
Horizontal Acquisition; horizontal sync
pulse
High Definition
HeadPhone
Monochrome TV system. Sound
carrier distance is 6.0 MHz. VHF- and
UHF-band
Integrated IC bus
Integrated IC Sound bus
Integrated Circuit
Intermediate Frequency
Infra Red
Interrupt ReQuest
LATin AMerica
Liquid Crystal Display
Light Emitting Diode; A semiconductor
diode that emits light when a current is
passed through it
Monochrome TV system. Sound
carrier distance is 6.5 MHz. L' is Band
I, L is all bands except for Band I
LoudSpeaker
Low Voltage Differential Signalling,
data transmission system for high
speed and low EMI communication.
Monochrome TV system. Sound
carrier distance is 4.5 MHz. M= 525
lines @ 60 Hz, N= 625 lines @ 50 Hz
Metal Oxide Semiconductor Field
Effect Transistor
Multi-standard Sound Processor: ITT
sound decoder
MUTE Line
Not Connected
Near Instantaneously Companded
Audio Multiplexing; This is a digital
sound system, mainly used in Europe
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
data such as alignment values, preset
stations
Open Circuit
On Screen Display
Phase Alternating Line. Color system
used mainly in Western Europe (color
carrier = 4.433619 MHz) and South
America (color carrier PAL M =
3.575612 MHz and PAL N = 3.582056
MHz)
Personal Computer
Printed Circuit Board (or PWB)
Picture In Picture
Phase Locked Loop. Used, for
example, in FST tuning systems. The
customer can directly provide the
desired frequency
Printed Wiring Board (also called PCB
or CBA)
Random Access Memory
Remote Control transmitter
Red, Green, and Blue color space;
The primary color signals for TV. By
mixing levels of R, G, and B, all colors
(Y/C) are reproduced
Red, Green, Blue, Horizontal sync,
and Vertical sync
Read Only Memory
SAM Service Alignment Mode
SC SandCastle: two-level pulse derived
from sync signals
S/C Short Circuit
SCART Syndicat des Constructeurs
d'Appareils Radiorécepteurs et
Téléviseurs; This is a 21-pin connector
used in EU, that carries various audio,
video, and control signals (it is also
called Péritel connector)
SCL Serial CLock Signal on I
SD Standard Definition
SDA Serial DAta Signal on I
SDRAM Synchronous DRAM
SECAM SÉquence Couleur Avec Mémoire;
Colour system mainly used in France
and East Europe. The chroma is FM
modulated and the R-Y and B-Y
signals are transmitted line
sequentially. Color carriers= 4.406250
MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
SMPS Switched Mode Power Supply
SND SouND
SOPS Self Oscillating Power Supply
S/PDIF Sony Philips Digital InterFace; This is
a consumer interface used to transfer
digital audio
SRAM Static RAM
STBY STandBY
SVHS Super Video Home System
SW Software or Subwoofer or Switch
THD Total Harmonic Distortion
TXT Teletext; TXT is a digital addition to
analogue TV signals that contain
textual and graphical information (25
rows x 40 columns). The information is
transmitted within the first 25 lines
during the Vertical Blank Interval (VBI)
P Microprocessor
VA Vertical Acquisition
VL Variable Level out: processed audio
output towards external amplifier
VCR Video Cassette Recorder
VGA Video Graphics Array; 640x480 (4:3)
WD Watch Dog
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
XTAL Quartz crystal
Y Luminance signal
Y/C Y consists of luminance signal,
blanking level and sync; C consists of
chroma (color) signal
YPbPr This is a scaled version of the YUV
color space. Y= Luminance, Pb/Pr=
Color difference signals B-Y and R-Y,
other amplitudes w.r.t. to YUV
YUV Color space used by the NTSC and
PAL video systems. Y is the luminance
and U/V are the color difference
signals
2
C bus
2
C bus