Philips L01.1L AC, Service Manual

Circuit Description

EN 80

L01.1L AC

9.

9.8

Abbreviation list

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

AR

Aspect Ratio: 4 by 3 or 16 by 9

ATS

Automatic Tuning System

AV

External Audio Video

AVL

Automatic Volume Level

BC-PROT

Beam Current Protection

BCL

Beam Current Limitation

B/G

Monochrome TV system. Sound 
carrier distance is 5.5 MHz

BLC-INFORMATION

Black current information

BTSC

Broadcast Television Standard 
Committee. Multiplex FM stereo sound 
system, originating from the USA and 
used e.g. in LATAM and AP-NTSC 
countries

B-TXT

Blue teletext

CBA

Circuit Board Assembly

CC

Closed Caption

ComPair

Computer aided rePair

CRT

Cathode Ray Tube or picture tube

CSM

Customer Service Mode

CTI

Color Transient Improvement: 
manipulates steepness of chroma 
transients

CVBS

Composite Video Blanking and 
Synchronization

DAC

Digital to Analogue Converter

DBE

Dynamic Bass Enhancement: extra 
low frequency amplification

DBX

Dynamic Bass Expander

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-INFORMATION

Extra High Tension information

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

FLASH

Flash memory

FM

Field Memory

FM

Frequency Modulation

HA

Horizontal Acquisition: horizontal sync 
pulse coming out of the HIP

HFB

Horizontal Flyback Pulse: horizontal 
sync pulse from large signal deflection

HP

Headphone

Hue 

Color phase control for NTSC (not the 
same as 'Tint')

I

Monochrome TV system. Sound 
carrier distance is 6.0 MHz

I

2

C

Integrated IC bus

IF

Intermediate Frequency

IIC

Integrated IC bus

Interlaced

Scan mode where two fields are used 
to form one frame. Each field contains 
half the number of the total amount of 
lines. The fields are written in 'pairs', 
causing line flicker.

ITV

Institutional TV 

LATAM

Latin America

LED

Light Emitting Diode

L/L'

Monochrome TV system. Sound 
carrier distance is 6.5 MHz. L' is Band 
I, L is all bands except for Band I

LNA

Low Noise Amplifier

LS

Large Screen

LS

Loudspeaker

LSP

Large signal panel

M/N

Monochrome TV system. Sound 
carrier distance is 4.5 MHz

MSP

Multi standard Sound Processor: ITT 
sound decoder

MUTE

Mute-Line

NC

Not Connected

NICAM

Near Instantaneous Compounded 
Audio Multiplexing. This is a digital 
sound system, mainly used in Europe.

NTSC

National Television Standard 
Committee. Color system mainly used 
in North America and Japan. Color 
carrier NTSC M/N = 3.579545 MHz, 
NTSC 4.43 = 4.433619 MHz (this is a 
VCR norm, it is not transmitted off-air)

NVM

Non Volatile Memory: IC containing 
TV related data e.g. alignments

OB

Option Byte

OC

Open Circuit

OSD

On Screen Display

PAL

Phase Alternating Line. Color system 
mainly used in West Europe (color 
carrier =  4.433619 MHz) and South 
America (color carrier PAL M = 
3.575612 MHz and PAL N = 3.582056 
MHz)

PCB

Printed Circuit board

PIP

Picture In Picture

PLL

Phase Locked Loop. Used for e.g. 
FST tuning systems. The customer 
can give directly the desired frequency

POR

Power-On Reset

Progressive Scan

Scan mode where all scan lines are 
displayed in one frame at the same 
time, creating a double vertical 
resolution.

PTP

Picture Tube Panel (or CRT-panel)

RAM

Random Access Memory

RC

Remote Control handset

RC5

Remote Control system 5, signal from 
the remote control receiver 

RGB

Red Green Blue

ROM

Read Only Memory

SAM

Service Alignment Mode

SAP

Second Audio Program

SC

Sandcastle: pulse derived from sync 
signals

S/C

Short Circuit

SCAVEM

Scan Velocity Modulation

SCL

Serial Clock