Philips LC4.7E, Service Manual

Page: 69 / 79

Circuit Descriptions, Abbreviation List, and IC Data Sheets EN 69 LC4.7E AA 9.
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
Progressive Scan Scan mode where all scan lines are
displayed in one frame at the same
time, creating a double vertical
resolution.
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
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
SIF Sound Intermediate Frequency
SC SandCastle: two-level pulse derived
from sync signals
SC1-OUT SCART output of the MSP audio IC
SC2-B-IN SCART2 Blue in
SC2-C-IN SCART2 chrominance in
SC2-OUT SCART output of the MSP audio IC
S/C Short Circuit
SCL Clock signal on I
2
C bus
SD Standard Definition
SDA Data signal on I
2
C bus
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
SNDL-SC1-IN Sound left SCART1 in
SNDL-SC1-OUT Sound left SCART1 out
SNDL-SC2-IN Sound left SCART2 in
SNDL-SC2-OUT Sound left SCART2 out
SNDR-SC1-IN Sound right SCART1 in
SNDR-SC1-OUT Sound right SCART1 out
SNDR-SC2-IN Sound right SCART2 out
SNDR-SC2-OUT Sound right SCART2 out
SNDS-VL-OUT Surround sound left variable level out
SNDS-VR-OUT Surround sound right variable level out
SOPS Self Oscillating Power Supply
S/PDIF Sony Philips Digital InterFace
SRAM Static RAM
STBY Stand-by
SVHS Super Video Home System
SW SubWoofer / SoftWare
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
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)