Philips es1e, Руководство по обслуживанию

Страница: 96 / 104

Circuit Descriptions, Abbreviation List, and IC Data Sheets EN 96 ES1E 9.
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
SNERT Synchronous No parity Eight bit
Reception and Transmission
SOG Sync On Green
SOPS Self Oscillating Power Supply
SOUND-ENABLE Control line to do hardware mute or
un-mute of loudspeakers.
SRAM Static RAM
SRAM Static RAM
SS Small Screen
ST-BY STandBY
STANDBY (POR) Signal coming from Main Supply
informing the supply is switching "off"
STATUS Status signal from pin 8 of SCART
connector
STBY STandBY
SVHS Super Video Home System
SW Software or Subwoofer or Switch
TBD To Be Defined
THD Total Harmonic Distortion
TILT PWM Output signal (variable DC level)
to control the picture tilt from the DOP
block of the ADOC.
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)
TXT-SW Teletext switch
U-100 U signal 1fH (after Feature Box)
UART Universal Asynchronous Receiver
Transmitter
UBE Ultra Bass Enhancement
µC Microcontroller
UI User Interface
UOC Ultimate One Chip
µP Microprocessor
UV Colour difference signals
V V_sync
V-100 V_sync from Feature Box (2fH)
V-2FH Vertical sync input for the 2fH source.
VA50 Vertical Acquisition 1fH
V-AMP Vertical Amplitude DAC output
V-BAT Main supply for deflection (usually 141
V)
VD-100 Vertical Drive 2fH; vertical sync pulse
from deflection
VD-NEG One of the symmetrical drive signals
for the DC frame output stage.
VD-POS One of the symmetrical drive signals
for the DC frame output stage
V-OSD Vertical sync OSD
VA Vertical Acquisition
VBI Vertical Blanking Interval; Time during
which the video signal is blanked when
going from bottom to top of the display
V-chip Violence chip. Adds content filtering
capabilities to NTSC video
VCR Video Cassette Recorder
VD Vertical Drive; Vertical sync pulse
coming from the Feature Box
VDS Virtual Dolby Surround
VERT Vertical Output pulse
VESA Video Electronics Standards
Association
VGA Video Graphics Array
VGND Video ground
VGUARD Vertical guard voltage
VIF Video Intermediate Frequency
VL Variable Level out; Processed audio
output towards external amplifier
VOL (+/-) Volume (+/-)
V-SYNC-VGA V_sync on VGA connector
WD Watch Dog
WE Write Enable control line
WS Wide Screen; Screens with an aspect
ratio of 16:9
WSS Wide Screen Signalling; Used by
broadcasters to transmit e.g.
PALPLUS and 16:9 Aspect Ratio
WST World System Teletext
WXGA 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
YPbPr Component video (Y= Luminance, Pb/
Pr= Colour difference signals B-Y and
R-Y, other amplitudes w.r.t. to YUV)
Y/C Y consists of luminance signal,
blanking level and sync; C consists of
chroma (colour) signal
Y-OUT Luminance-signal
YUV Colour space used by the NTSC and
PAL video systems. Y is the luminance
and U/V are the colour difference
signals
9.5 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
(with the exception of "memory" and "logic" ICs). This is not
applicable to this manual.