Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 38 SK4.0L CA9.
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.
PTC Positive Temperature Coefficient, non
linear resistor (resistance increases if
temperature increases)
PWB Printed Wiring Board (also called PCB
or CBA)
QSS Quasi Split Sound
R Right audio channel / Red
RAM Random Access Memory
RC Remote Control transmitter
RC5 (6) Remote Control system 5 (6), the
signal from the remote control receiver
RF Real Flat (picture tube) or Radio
Frequency
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
RMS Root Mean Square value
ROM Read Only Memory
SAP Secondary Audio Program; Generally
used to transmit audio in a second
language
SAW Surface Acoustic Wave
SC SandCastle: two-level pulse derived
from sync signals
S/C Short Circuit
SCL Serial Clock signal on I
2
C bus
SD Standard Definition
SDA Serial Data line of I
2
C bus
SDRAM Synchronous DRAM
SIF Sound Intermediate Frequency
SMC Surface Mounted Component
SMD Surface Mounted Device
SMPS Switched Mode Power Supply
SND SouND
SRAM Static RAM
STBY STandBY
SVHS Super Video Home System
TBD To Be Defined
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)
µC Microcontroller
UOC Ultimate One Chip
µP Microprocessor
UV Colour difference signals
VV_sync
V-BAT Main supply for deflection (usually 141
V)
VA Vertical Acquisition
VBI Vertical Blanking Interval; Time during
which the video signal is blanked when
going from bottom to top of the display
VCR Video Cassette Recorder
VGA Video Graphics Array
VIF Video Intermediate Frequency
WE Write Enable control line
WST World System Teletext
XTAL Quartz crystal
Y Luminance signal
9.4 IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as “black boxes” in the electrical
diagrams.
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