Philips 3122 785 14580 Service Manual page 109

Circuit Descriptions, Abbreviation List, and IC Data Sheets
RGB Red, Green, and Blue colour space;
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
S/C Short Circuit
SCL-F Clock signal on fast I
SD Standard Definition
SDA-F Data signal on fast I
SDI Samsung Display Industry
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. Colour carriers=
4.406250 MHz and 4.250000 MHz
SIF Sound Intermediate Frequency
SMD Surface Mounted Device
SMPS Switched Mode Power Supply
SNERT Synchronous No parity Eight bit
Reception and Transmit
SSB Small Signal Board
STBY Stand-by
SW Sub woofer
SVGA 800x600 (4:3)
SVHS Super Video Home System
TMDS Transition Minimised Differential
Signalling
TOP Table Of Pages; TXT standard
TXT Teletext
uP Microprocessor
UV Colour difference signals
UVSH UHF, VHF, S-, and Hyper-band
VA Vertical Acquisition
V-a Addressing voltage for the plasma
display
VDS Virtual Dolby Surround
VESA Video Electronics Standards
Association
VFB Vertical Flyback Pulse: vertical sync
pulse coming from the Feature Box
VGA Video Graphics Array; 640x480 (4:3)
VL Variable Level out: processed audio
output towards external amplifier
V-ra Setting voltage for V_a
V-rs Setting voltage for V_s
V-s Sustain voltage for the plasma display
WSS Wide Screen Signalling; used by
broadcasters to transmit e.g.
PALPLUS and 16:9 Aspect Ratio
WXGA Wide eXtended Graphics Array;
1280x768 (15:9) or 1366x768 (16:9)
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
XGA Extended Graphics Array; 1024x768
(4:3)
XTAL Quartz crystal
Y Luminance signal
Y100 Y from Feature Box
YPbPr This is a scaled version of the YUV
colour space. Y= Luminance, Pb/Pr=
Colour difference signals B-Y and R-Y,
other amplitudes w.r.t. to YUV
Y-OUT Luminance-signal to HOP IC
YUV Colour space used by the NTSC and
PAL video systems. Y is the luminance
and U/V are the colour difference
signals
2
C bus
2
C bus
FTP2.4E AA 9. EN 109