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Philips LC4.1E A - User Manual

Philips LC4.1E A
64 pages
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Published by BB 0566 TV Service Printed in the Netherlands Subject to modification EN 3122 785 15310
©
Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Colour Television Chassis
LC4.1E
AB
E_14520_000.eps
170904
Contents Page Contents Page
1. Technical Specifications, Connections, and Chassis
Overview 2
2. Safety Instructions, Warnings, and Notes 5
3. Directions for Use 7
4. Mechanical Instructions 8
5. Service Modes, Error Codes, and Fault Finding 10
6. Block Diagrams, Testpoint Overviews, and
Waveforms
Wiring Diagram 17
Block Diagram Audio & Video 18
Block Diagram Scaler & Supply 19
Testpoint Overview SSB (Top Side) 20
Testpoint Overview SSB (Bottom Side) 21
Testpoint Overview Front IR / LED Panel 22
I2C Overview 23
Supply Voltage Overview 24
7. Circuit Diagrams and PWB Layouts Drawing PWB
SSB: Tuner + VIF (B1) 25 35-36
SSB: Hercules (B2)26 35-36
SSB: Hercules (B3)27 35-36
SSB: Audio Amplifier + Processing (B4)28 35-36
SSB: TV Supply (B5) 29 35-36
SSB: Scaler (B6)30 35-36
SSB: Scaler (B7)31 35-36
SSB: Scaler I/O (B8)32 35-36
SSB: Supply (B9) 33 35-36
SSB: Rear I/O Scart (B10) 34 35-36
Side I/O Panel (D) 37 38
Keyboard Control Panel (E)39 39
Top Control Panel (E)40 40
Audio Amplifier (I) 41 42
Front IR / LED Panel (J) 43 43
8. Alignments 45
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 52
Abbreviation List 56
IC Data Sheets 58
10. Spare Parts List 61
11. Revision List 64
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Summary

Technical Specifications, Connections, and Chassis Overview

Technical Specifications

Details about vision, sound, and miscellaneous technical aspects.

Connection Overview

Overview of front and rear connectors, including color abbreviations.

Chassis Overview

Identifies the location of main printed circuit boards (PWBs) within the chassis.

Safety Instructions, Warnings, and Notes

Safety Instructions

Guidelines for safe repair procedures, including isolation transformers and component replacement.

Warnings

Alerts about electrostatic discharge (ESD), high voltage, and precautions during measurements.

Notes

General notes on measurements and schematic conventions, including rework on BGA ICs.

Lead-free Solder

Instructions and precautions for handling lead-free solder and components.

Practical Service Precautions

Advice on avoiding electrical shock and respecting voltage levels during service.

Directions for Use

Mechanical Instructions

Service Position

Describes how to set up the TV for service measurements using foam bars.

Rear Cover Removal

Step-by-step instructions for removing the rear cover of the television set.

Power Supply Unit Removal

Procedure for safely removing the power supply unit from the chassis.

Small Signal Board Removal

Instructions for removing the small signal board, including connector and screw details.

Side I;O Panel Removal

Steps to remove the side input/output panel, detailing fasteners and clips.

Top Control Panel Removal

Procedure for removing the top control panel, including cable and screw removal.

LED;IR Panel Removal

Instructions for removing the LED/IR panel, focusing on clamps and connectors.

Audio Amplifier Panel Removal

Steps to remove the audio amplifier panel, including screws and locking mechanisms.

Exchanging the LCD Panel

Guide for replacing the LCD panel, involving cable and cover removal.

Re-Assembly

General guidance for reassembling the set in reverse order of disassembly.

Service Modes, Error Codes, and Fault Finding

Test Points

Identifies test points and conditions for measurements in service mode.

Service Modes

Introduces Service Default Mode (SDM) and Service Alignment Mode (SAM).

Service Default Mode (SDM)

Explains the purpose, specifications, and how to enter SDM.

Service Alignment Mode (SAM)

Details the purpose, specifications, and navigation within SAM.

Customer Service Mode (CSM)

Explains CSM for customer support, its purpose, and how to enter it.

Problems and Solving Tips Related to CSM

Troubleshooting tips for picture and text issues using CSM.

Service Tools

Introduces ComPair, a PC-based service tool for diagnostics and repair.

ComPair

Details ComPair's advantages, connection, and ordering information.

LVDS Tool

Describes the LVDS tool for identifying SSB or display defects.

Error Codes

Explains the error code buffer, how to read and clear it, and lists error codes.

The Blinking LED Procedure

Method to view error codes via the front LED when there is no picture.

Fault Finding and Repair Tips

General notes and tips for troubleshooting various faults.

NVM Editor

How to change NVM contents directly using the NVM Editor in SAM mode.

Tuner and IF

Troubleshooting steps for tuner and IF issues, including specific problems.

Video Processing

Fault finding tips for video processing issues like no power or no picture.

Power Supply

Checks for fuses and troubleshooting power supply issues in standby and normal modes.

Block Diagrams, Testpoint Overviews, and Waveforms

Wiring Diagram

A schematic showing the electrical connections between major TV components.

Block Diagram Audio & Video

Illustrates the signal flow for audio and video processing within the TV.

Block Diagram Scaler & Supply

Shows the signal paths for the scaler and power supply sections of the TV.

Testpoint Overview SSB (Top Side)

Diagram showing test point locations on the top side of the Small Signal Board (SSB).

Testpoint Overview SSB (Bottom Side)

Diagram showing test point locations on the bottom side of the Small Signal Board (SSB).

Testpoint Overview Front IR; LED Panel

Shows test points on the Front IR/LED panel for diagnostics.

I2 C Overview

Diagram illustrating the I2C bus interconnections between various ICs.

Supply Voltage Overview

Schematic detailing the various supply voltages distributed throughout the TV.

Circuit Diagrams and PWB Layouts

SSB: Tuner + VIF

Circuit diagram and PWB layout for the Tuner and IF section.

SSB: Hercules

Circuit diagram and PWB layout for the Hercules (main processor) section.

SSB: Hercules

Circuit diagram and PWB layout for the Hercules (main processor) section.

SSB: Audio Amplifier + Processing

Circuit diagram and PWB layout for the audio amplifier and processing unit.

SSB: TV Supply

Circuit diagram and PWB layout for the TV's power supply section.

SSB: Scaler

Circuit diagram and PWB layout for the video scaler IC.

SSB: Scaler

Circuit diagram and PWB layout for the video scaler IC.

SSB: Scaler I;O

Circuit diagram and PWB layout for the scaler input/output interface.

SSB: Supply

Circuit diagram and PWB layout for the supply board, providing various voltages.

SSB: Rear I;O SCART

Circuit diagram and PWB layout for the rear SCART and I/O connections.

Layout SSB (Top Side)

PWB layout showing component placement on the top side of the SSB.

Layout SSB (Bottom Side)

PWB layout showing component placement on the bottom side of the SSB.

Side I;O Panel [D]

Circuit diagram and PWB layout for the side input/output panel.

Layout Side I;O Panel (Top Side)

PWB layout for the top side of the side I/O panel.

Layout Side I;O Panel (Bottom Side)

PWB layout for the bottom side of the side I/O panel.

Keyboard Control Panel

Circuit diagram and PWB layouts for the keyboard control panel.

Top Control Panel

Circuit diagram and PWB layouts for the top control panel, showing button functions.

Audio Amplifier

Circuit diagram for the audio amplifier section, showing connections and components.

Layout Audio Amplifier (Top Side)

PWB layout for the top side of the audio amplifier board.

Front IR; LED Panel

Circuit diagram and PWB layouts for the front IR and LED panel.

Alignments

General Alignment Conditions

Specifies conditions required for performing electrical adjustments and alignments.

Hardware Alignments

States that no specific hardware alignments are foreseen for this LCD TV.

Software Alignments

Describes software alignments for geometry, white tone, and tuner using SAM.

SAM Menu

Overview of the SAM menu structure and options available for alignment.

White Tone

Details how to adjust colour temperature and values in the White Tone menu.

Tuner Adjustment

Procedures for adjusting tuner parameters like AGC and AFC window.

Grey Scale Adjustment

Methods for adjusting SDTV and HD grey scale for accurate color reproduction.

Sound

Notes that no specific sound adjustments are needed beyond default values.

Options

Explains the function of options and how to change them via Option Bytes.

Hercules Default NVM Settings

Table detailing NVM settings for Hercules options across different models.

Circuit Descriptions, Abbreviation List, and IC Data Sheets

Introduction

Overview of the LC4.1 LCD TV chassis and its key features.

Block Diagram

High-level block diagram illustrating the main functional units of the TV.

Power Supply

Description of the power supply panel, including defect handling and ordering codes.

Tuner and IF

Details the tuner and IF circuitry, including signal processing and tuning methods.

Video IF Amplifier

Explains the function of the IF filter, amplifier, and AGC control.

Video: TV Part (diagrams B1, B2, and B3)

Describes the video processing handled by the Hercules IC in the TV part.

Video: Scaler Part (diagram B6, B7, and B8)

Explains the Scaler IC's functions for video processing and input/output ports.

Scaler Features

Lists key features of the Scaler IC, including scaling and input port capabilities.

Scaler Inputs

Details the analog RGB and DVI/DVI-D/VGA inputs for the Scaler.

Audio Processing

Describes the audio decoding, processing, and features handled by the Hercules IC.

Audio Diversity

Explains audio diversity concepts (QSS, Inter Carrier) and regional sound standards.

Audio Processing Functionality

Lists the audio features available in the Hercules, including treble, bass, and surround effects.

Audio Amplifier

Details the audio amplifier execution for different screen sizes and muting.

Control

Describes the control functions managed by the micro-controllers (OCM and Hercules).

Hercules Micro-controller

Details the Hercules micro-controller's role in video/audio processing and NVM usage.

Micro Controller Block Diagram

Block diagram of the micro-controller application, showing its interaction with other components.

Abbreviation List

List of abbreviations used in the manual with their meanings.

IC Data Sheets

Introduces IC data sheets, showing internal block diagrams and pin layouts.

GM5221 (IC7401) Diagram

Functional block diagram and pin configuration for the GM5221 scaler IC.

TDA12029 H (IC7011) Diagram

Block diagram and pin configuration for the TDA12029H (Hercules) processor.

S9993 CT (IC7808) Diagram

Block diagram and pin configuration for the S9993CT IC used in the TV.

Spare Parts List

Set Level Parts

Lists spare parts for the main set level, including power supply units.

Small Signal Board Parts

Lists spare parts for the Small Signal Board (SSB), including connectors and ICs.

Side I;O Panel Parts

Lists spare parts for the side I/O panel components.

Top Control Panel Parts

Lists spare parts for the top control panel components.

Audio Amplifier Parts

Lists spare parts for the audio amplifier components.

Front IR; LED Panel Parts

Lists spare parts for the front IR/LED panel components.

Revision List

Philips LC4.1E A Specifications

General IconGeneral
BrandPhilips
ModelLC4.1E A
CategoryChassis
LanguageEnglish

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