DOWNLOAD Sharp LC-46LE631E (serv.man2) Service Manual ↓ Size: 10.49 MB | Pages: 127 in PDF or view online for FREE

0/6/12

SCART switch control signal on A/V 
board. 0 = loop through (AUX to TV), 
6 = play 16 : 9 format, 12 = play 4 : 3 
format

AARA

Automatic Aspect Ratio Adaptation: 
algorithm that adapts aspect ratio to 
remove horizontal black bars; keeps 
the original aspect ratio

ACI

Automatic Channel Installation: 
algorithm that installs TV channels 
directly from a 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

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

ASF

Auto Screen Fit: algorithm that adapts 
aspect ratio to remove horizontal black 
bars without discarding video 
information

ATSC

Advanced Television Systems 
Committee, the digital TV standard in 
the USA

ATV

See Auto TV

Auto TV

A hardware and software control 
system that measures picture content, 
and adapts image parameters in a 
dynamic way

AV

External Audio Video

AVC

Audio Video Controller

AVIP

Audio Video Input Processor

B/G

Monochrome TV system. Sound 
carrier distance is 5.5 MHz

BDS

Business Display Solutions (iTV)

BLR

Board-Level Repair

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

C

Centre channel (audio)

CEC

Consumer Electronics Control bus: 
remote control bus on HDMI 
connections

CL

Constant Level: audio output to 
connect with an external amplifier

CLR

Component Level Repair

If a board is defective, consult your repair procedure to decide 
if the board has to be exchanged or if it should be repaired on 
component level.
If your repair procedure says the board should be exchanged 
completely, do not solder on the defective board. Otherwise, it 
cannot be returned to the O.E.M. supplier for back charging!

•

It makes sense to avoid exposure to electrical shock. 
While some sources are expected to have a possible 
dangerous impact, others of quite high potential are of 
limited current and are sometimes held in less regard.

•

Always respect voltages. While some may not be 
dangerous in themselves, they can cause unexpected 
reactions that are best avoided. Before reaching into a 
powered TV set, it is best to test the high voltage insulation. 
It is easy to do, and is a good service precaution.

p

CP

Connected Planet / Copy Protection

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

DCM

Data Communication Module. Also 
referred to as System Card or 
Smartcard (for iTV). 

DDC

See “E-DDC”

D/K

Monochrome TV system. Sound 
carrier distance is 6.5 MHz

DFI

Dynamic Frame Insertion

DFU

Directions For Use: owner's manual

DMR

Digital Media Reader: card reader

DMSD

Digital Multi Standard Decoding

DNM

Digital Natural Motion

DNR

Digital Noise Reduction: noise 
reduction feature of the set

DRAM

Dynamic RAM

DRM

Digital Rights Management

DSP

Digital Signal Processing

DST

Dealer Service Tool: special remote 
control designed for service 
technicians

DTCP

Digital Transmission Content 
Protection; A protocol for protecting 
digital audio/video content that is 
traversing a high speed serial bus, 
such as IEEE-1394

DVB-C

Digital Video Broadcast - Cable

DVB-T

Digital Video Broadcast - Terrestrial

DVD

Digital Versatile Disc

DVI(-d)

Digital Visual Interface (d= digital only)

E-DDC

Enhanced Display Data Channel 
(VESA standard for communication 
channel and display). Using E-DDC, 
the video source can read the EDID 
information form the display.

EDID

Extended Display Identification Data 
(VESA standard)

EEPROM

Electrically Erasable and 
Programmable Read Only Memory

EMI

Electro Magnetic Interference

EPG

Electronic Program Guide

EPLD

Erasable Programmable Logic Device

EU

Europe

EXT

EXTernal (source), entering the set by 
SCART or by cinches (jacks)

FDS

Full Dual Screen (same as FDW)

FDW

Full Dual Window (same as FDS)

FLASH

FLASH memory

FM

Field Memory or Frequency 
Modulation

FPGA

Field-Programmable Gate Array

FTV

Flat TeleVision

Gb/s

Giga bits per second

G-TXT

Green TeleteXT

H

H_sync to the module 

HD

High Definition

HDD

Hard Disk Drive

HDCP

High-bandwidth Digital Content 
Protection: A “key” encoded into the 
HDMI/DVI signal that prevents video 
data piracy. If a source is HDCP coded 
and connected via HDMI/DVI without 
the proper HDCP decoding, the 
picture is put into a “snow vision” mode 
or changed to a low resolution. For 
normal content distribution the source 
and the display device must be 
enabled for HDCP “software key” 
decoding.

HDMI

High Definition Multimedia Interface

HP

HeadPhone

I

Monochrome TV system. Sound 
carrier distance is 6.0 MHz

I

2

C

Inter IC bus

I

2

D

Inter IC Data bus

I

2

S

Inter IC Sound bus

IF

Intermediate Frequency

IR

Infra Red

IRQ

Interrupt Request

ITU-656

The ITU Radio communication Sector 
(ITU-R) is a standards body 
subcommittee of the International 
Telecommunication Union relating to 
radio communication. ITU-656 (a.k.a. 

SDI), is a digitized video format used 
for broadcast grade video. 
Uncompressed digital component or 
digital composite signals can be used. 
The SDI signal is self-synchronizing, 
uses 8 bit or 10 bit data words, and has 
a maximum data rate of 270 Mbit/s, 
with a minimum bandwidth of 135 
MHz.

ITV

Institutional TeleVision; TV sets for 
hotels, hospitals etc.

LS

Last Status; The settings last chosen 
by the customer and read and stored 
in RAM or in the NVM. They are called 
at start-up of the set to configure it 
according to the customer's 
preferences

LATAM

Latin America

LCD

Liquid Crystal Display

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

LS

Loudspeaker

LVDS

Low Voltage Differential Signalling

Mbps

Mega bits per second

M/N

Monochrome TV system. Sound 
carrier distance is 4.5 MHz

MHEG

Part of a set of international standards 
related to the presentation of 
multimedia information, standardised 
by the Multimedia and Hypermedia 
Experts Group. It is commonly used as 
a language to describe interactive 
television services

MIPS

Microprocessor without Interlocked 
Pipeline-Stages; A RISC-based 
microprocessor

MOP

Matrix Output Processor

MOSFET

Metal Oxide Silicon Field Effect 
Transistor, switching device

MPEG

Motion Pictures Experts Group

MPIF

Multi Platform InterFace

MUTE

MUTE Line

MTV

Mainstream TV: TV-mode with 
Consumer TV features enabled (iTV)

NC

Not Connected

NICAM

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

NTC

Negative Temperature Coefficient, 
non-linear resistor

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 such as alignments

O/C

Open Circuit

OSD

On Screen Display

OAD

Over the Air Download. Method of 
software upgrade via RF transmission. 
Upgrade software is broadcasted in 
TS with TV channels.

OTC

On screen display Teletext and 
Control; also called Artistic (SAA5800)

P50

Project 50: communication protocol 
between TV and peripherals

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 (same as “PWB”)

PCM

Pulse Code Modulation

PDP

Plasma Display Panel

PFC

Power Factor Corrector (or Pre-
conditioner)

PIP

Picture In Picture

PLL

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

POD

Point Of Deployment: a removable 
CAM module, implementing the CA 
system for a host (e.g. a TV-set)

POR

Power On Reset, signal to reset the uP

PSDL

Power Supply for Direct view LED 
backlight with 2D-dimming

PSL

Power Supply with integrated LED 
drivers

PSLS

Power Supply with integrated LED 
drivers with added Scanning 
functionality

PTC

Positive Temperature Coefficient, 
non-linear resistor

PWB

Printed Wiring Board (same as “PCB”)

PWM

Pulse Width Modulation

QRC

Quasi Resonant Converter

QTNR

Quality Temporal Noise Reduction

QVCP

Quality Video Composition Processor

RAM

Random Access Memory

RGB

Red, Green, and Blue. The primary 
color signals for TV. By mixing levels 
of R, G, and B, all colors (Y/C) are 
reproduced.

RC

Remote Control

RC5 / RC6

Signal protocol from the remote 
control receiver 

RESET

RESET signal

ROM

Read Only Memory

RSDS

Reduced Swing Differential Signalling 
data interface

R-TXT

Red TeleteXT

SAM

Service Alignment Mode

S/C

Short Circuit

SCART

Syndicat des Constructeurs 
d'Appareils Radiorécepteurs et 
Téléviseurs

SCL

Serial Clock I

2

C

SCL-F

CLock Signal on Fast I

2

C bus

SD

Standard Definition

SDA

Serial Data I

2

C

SDA-F

DAta Signal on Fast I

2

C bus

SDI

Serial Digital Interface, see “ITU-656”

SDRAM

Synchronous DRAM

SECAM

SEequence Couleur Avec Mémoire. 
Color system mainly used in France 
and East Europe. Color carriers= 
4.406250 MHz and 4.250000 MHz

SIF

Sound Intermediate Frequency

SMPS

Switched Mode Power Supply

SoC

System on Chip

SOG

Sync On Green

SOPS

Self Oscillating Power Supply

SPI

Serial Peripheral Interface bus; a 4-
wire synchronous serial data link 
standard

S/PDIF

Sony Philips Digital InterFace

SRAM

Static RAM

SRP

Service Reference Protocol

SSB

Small Signal Board

SSC

Spread Spectrum Clocking, used to 
reduce the effects of EMI

STB

Set Top Box

STBY

STand-BY

SVGA

800 × 600 (4:3)

SVHS

Super Video Home System

SW

Software

SWAN

Spatial temporal Weighted Averaging 
Noise reduction

SXGA

1280 × 1024

TFT

Thin Film Transistor

THD

Total Harmonic Distortion

TMDS

Transmission Minimized Differential 
Signalling

TS

Transport Stream

TXT

TeleteXT

TXT-DW

Dual Window with TeleteXT

UI

User Interface

uP

Microprocessor

UXGA

1600 × 1200 (4:3)

V

V-sync to the module 

VESA

Video Electronics Standards 
Association

VGA

640 × 480 (4:3)

VL

Variable Level out: processed audio 
output toward external amplifier

VSB

Vestigial Side Band; modulation 
method

WYSIWYR

What You See Is What You Record: 
record selection that follows main 
picture and sound

WXGA

1280 × 768 (15:9)

XTAL

Quartz crystal

XGA

1024 × 768 (4:3)

Y

Luminance signal

Y/C

Luminance (Y) and Chrominance (C) 
signal

YPbPr

Component video. Luminance and 
scaled color difference signals (B-Y 
and R-Y)

YUV

Component video

Notes: 
•

Figures below can deviate slightly from the actual situation, 
due to the different set executions.

10 tapes (80 mm)

2 tapes (150 mm)

2 conductive tapes (40 mm)

1 x 11 mm clamp

4.1 Cable Dressing  LC-xx631E series Styling

4.2 Service Positions

4.3 Assy/Panel Removal Sundance Styling (LC-xxLE631E series)

4.4 Set Re-assembly

4.5 Dimensions 32”

4.6 Dimensions 40”

4.7 Dymensions 46”

4.8 Removing of Major Parts 32”

4.9 Removing of Major Parts 40” & 46”