Philips LC4.1E - User Manual

Published by WS 0668 TV Service Printed in the Netherlands Subject to modification EN 3122 785 15311
©
Copyright 2006 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, Test Point Overviews, and
Waveforms
Wiring Diagram 17
Block Diagram Audio & Video 18
Block Diagram Scaler & Supply 19
Test Point 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 (ME5FL) (J) 43 43
Front IR / LED Panel (26” & 32”) (ME5P) (J) 44 44
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

Philips LC4.1E Specifications

General

Display Technology	LCD
Aspect Ratio	16:9
Audio Output	2 x 10W
Component Input	1
Composite Input	1
RF Input	1
Viewing Angle	176° (H/V)
Weight	18.5 kg

Summary

Technical Specifications and Chassis Overview

Technical Specifications

Detailed display, resolution, contrast, response time, viewing angle specs.

Connection Overview

Details front, side, and rear connection ports like SCART, DVI, USB.

Chassis Overview

Overview of the TV chassis and main PCB locations.

Safety Instructions, Warnings, and Notes

Safety Instructions and Warnings

Essential safety regulations, warnings on ESD, high voltage, and component handling.

General Notes

Notes on measurements, schematic conventions, and BGA rework.

Mechanical Instructions

Component Removal Procedures

Steps for removing rear cover, power supply, signal boards, and panels.

Service Position and Re-Assembly

Using foam bars for stable placement and general re-assembly steps.

Service Modes, Error Codes, and Fault Finding

Service Modes (SDM, SAM, CSM)

Explains Service Default, Alignment, and Customer Service Modes.

Error Codes and Troubleshooting

Details error codes, buffer clearing, blinking LED, and fault finding tips.

Service Tools (ComPair, LVDS)

Information on diagnostic tools like ComPair and LVDS Tool.

Block Diagrams, Test Points, and I2 C Overview

Block Diagrams

High-level and detailed block diagrams of video, audio, scaler, and supply sections.

Test Point Overviews

Layouts of test points on SSB, Front IR/LED Panel for troubleshooting.

I2 C Bus Interconnection

Diagram showing I2C communication paths between ICs.

Circuit Diagrams and PWB Layouts

SSB Circuit Diagrams

Circuit diagrams for Tuner, Hercules, TV Supply, Scaler, and I/O sections.

Panel Circuit Diagrams

Circuit diagrams for Side I/O, Keyboard, Top Control, Audio Amplifier, and IR/LED Panels.

PWB Layouts

PWB layouts for SSB, Side I/O, Keyboard, Top Control, Audio Amplifier, and IR/LED Panels.

Alignments

General Alignment Conditions

Conditions required for performing electrical adjustments.

Software Alignments (SAM)

Procedures for aligning geometry, white tone, tuner, and grey scale.

Hotel Mode Setup and Functions

Instructions for activating and configuring Hotel Mode using Smart-Loader.

Circuit Descriptions, Abbreviation List, and IC Data Sheets

Block Diagram and Descriptions

High-level block diagram and descriptions of TV sections like Video, Audio, Control.

IC Data Sheets

Block diagrams and pin configurations for key ICs like GM5221 and TDA12029H.

Abbreviation List

Glossary of abbreviations used in circuit descriptions and diagrams.

Spare Parts List

Spare Parts List

Comprehensive list of spare parts with order codes for various assemblies.

Revision List

Revision List

List of revisions made to the service manual.