Abbreviation List - Philips L04E Service Manual

Circuit Descriptions, Abbreviation List, and IC Data Sheets
Muting is done via the VOLUME_MUTE line connected to pin
2 of the amplifier-IC and coming from the UOC.
The following table shows pin functionality of the Audio
Amplifier:
Table 9-13 Pinning overview TDA2616
Pin Pin Name
1 Input Left
2 Mute
3 Ground
4 Output L Channel
5 Supply Voltage (negative)
6 Output R Channel
7 Supply Voltage (positive)
8 Inverting inputs L and R
9 Input Right
9.9 Picture in Picture (PIP)
The PIP application has two tuners, one with a splitter on the
main chassis and another with "phono" input on the PIP panel.
The same signal is injected to both tuners, so that it does not
need separate auto tuning for the PIP tuner.
The TDA9887TS (item 7201) is an alignment free multi-
standard vision and sound IF signal PLL demodulator for
positive and negative modulation, including sound AM and FM
processing.
The SDA9489 (item 7242) is a multi system colour decoder
with many features such as: half screen size PIP, selectable
YUV or YPbPr, 16:9 application, WSS detection, Closed
Caption, and OSD display for PIP window etc.
The PIP power supply is based on the step down converter
principle. The +9V input voltage is converted to +5V and +3.3V
via the regulator (item 7501).

9.10 Abbreviation List

Normal Operation
Input AC signal
16 V_dc
0 V
AC waveform
-16 V_dc
AC waveform
+ 16 V_dc
0 V
Input AC signal
L04E AE
2CS 2 Carrier (or Channel) Stereo
ACI Automatic Channel Installation:
algorithm that installs TV sets directly
from cable network by means of a
predefined TXT page
ADC Analogue to Digital Converter
AFC Automatic Frequency Control: control
signal used to tune to the correct
frequency
AFT Automatic Fine Tuning
AGC Automatic Gain Control: algorithm that
controls the video input of the feature
box
AM Amplitude Modulation
AP Asia Pacific region
AR Aspect Ratio: 4 by 3 or 16 by 9
ATS Automatic Tuning System
AV External Audio Video
AVL Automatic Volume Leveller
BCL Beam Current Limitation
B/G Monochrome TV system. Sound
carrier distance is 5.5 MHz
BTSC Broadcast Television Standard
Committee. Multiplex FM stereo sound
system, originating from the USA and
used e.g. in LATAM and AP-NTSC
countries
CC Closed Caption
CCC Continuous Cathode Calibration
ComPair Computer aided rePair
CRT Cathode Ray Tube or picture tube
CSM Customer Service Mode
CTI Colour Transient Improvement:
manipulates steepness of chroma
transients
CVBS Composite Video Blanking and
Synchronization
CVI Component Video Input
DAC Digital to Analogue Converter
DBX Dynamic Bass Expander or noise
reduction system in BTSC
D/K Monochrome TV system. Sound
carrier distance is 6.5 MHz
DFU Direction For Use: description for the
end user
DNR Dynamic Noise Reduction
DSP Digital Signal Processing
DST Dealer Service Tool: special remote
control designed for dealers to enter
e.g. service mode
DVD Digital Versatile Disc
EEPROM Electrically Erasable and
Programmable Read Only Memory
EHT Extra High Tension
EHT-INFO Extra High Tension information
EPG Electronic Programming Guide
EU Europe
EW East West, related to horizontal
deflection of the set
EXT External (source), entering the set via
SCART or Cinch
FBL Fast Blanking: DC signal
accompanying RGB signals
FILAMENT Filament of CRT
FM Field Memory or Frequency
Modulation
H Horizontal sync signal
HP Headphone
I Monochrome TV system. Sound
carrier distance is 6.0 MHz
I2C Integrated IC bus
IF Intermediate Frequency
9. EN 79