Philips LC7.2E User Manual

Published by TY 0769 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 16863
©
Copyright 2007 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
LC7.2E
LA
G_16860_000.eps
200207
ME7
ME7
Contents Page Contents Page
1. Technical Specifications, Connections, and Chassis
Overview 2
2. Safety Instructions, Warnings, and Notes 6
3. Directions for Use 7
4. Mechanical Instructions 8
5. Service Modes, Error Codes, and Fault Finding 16
6. Block Diagrams, Test Point Overviews, and
Waveforms
Wiring Diagram 26” & 32” 29
Wiring Diagram 37” & 42” 30
Wiring Diagram 37” & 42” (ME7 Promo Set) 31
Wiring Diagram 42” 1080p 32
Wiring Diagram 47” (ME7) 33
Wiring Diagram 47” 1080p (ME7) 34
Block Diagram Video 35
Block Diagram Audio 36
Block Diagram Control & Clock Signals 37
Test Point Overview SSB (Bottom Side) 38
I2C IC’s Overview 39
Supply Lines Overview 40
7. Circuit Diagrams and PWB Layouts Diagram PWB
SSB: DC/DC (B02) 41 57-66
SSB: Tuner & Demodulator (B03A) 42 57-66
SSB: DVB - Demodulator (B03B) 43 57-66
SSB: DVB - Common Interface (B03C) 44 57-66
SSB: DVB - Mojo (B03D) 45 57-66
SSB: DVB - Mojo Memory (B03E) 46 57-66
SSB: DVB - Mojo Analog Back End (B03F) 47 57-66
SSB: Micro Processor (B04A) 48 57-66
SSB: Video Processor (B04B) 49 57-66
SSB: PNX2015: Audio Processor (B04C) 50 57-66
SSB: YPBPR & Rear IO (B06A) 51 57-66
SSB: I/O Scart 1 & 2 (B06B) 52 57-66
SSB: HDMI (B06C) 53 57-66
SSB: Headphone Amp & Muting (B06D) 54 57-66
SSB: Audio (B07) 55 57-66
SSB: SRP List 56 57-66
Side A/V Panel (D) 67 68
Keyboard Control Panel (E) 69 70
1080P Panel: On Chip uController (F1) 71 78
1080P Panel: Flash & NVM (F2) 72 78
1080P Panel: LVDS In (F3) 73 78
1080P Panel: LVDS Out (F4) 74 78
1080P Panel: Supply In (F5) 75 78
1080P Panel: DDR SDRAM (F6) 76 78
1080P Panel: DC Power Supply (F7) 77 78
Front IR / LED Panel (J) 79 80
8. Alignments 81
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 86
Abbreviation List 93
IC Data Sheets 95
10. Spare Parts List 103
11. Revision List 111

Philips LC7.2E Specifications

General

Display Technology	LCD
Screen Size	32 inches
Resolution	1366 x 768
Aspect Ratio	16:9
Refresh Rate	60 Hz
Sound Output	20W
USB Ports	1

Summary

Technical Specifications and Connections

1.1 Technical Specifications

Details display type, screen size, resolution, contrast, response time, viewing angles, and miscellaneous specs.

1.2 Connection Overview

Illustrates and details side and rear I/O connections, listing pin assignments for signal routing.

Safety Instructions, Warnings, and Notes

2.1 Safety Instructions

Details safety regulations and precautions for servicing the set during and after repair.

2.3.8 Practical Service Precautions

Provides advice on electrical shock avoidance and respecting voltages during service.

Mechanical Instructions

4.1 Cable Dressing

Details the proper routing and securing of cables within the chassis for different screen sizes.

4.3 Assy/Panel Removal

Provides step-by-step instructions for removing the rear cover, keyboard control panel, and IR/LED panel.

Service Modes, Error Codes, and Fault Finding

5.1 Test Points

Explains how test points are indicated in schematics and layouts, and how to use test patterns.

5.2 Service Modes

Details Service Default Mode (SDM), Service Alignment Mode (SAM), Customer Service Mode (CSM), and ComPair.

5.4 Error Codes

Explains how error codes indicate failures and how to read the error buffer for diagnostics.

5.5 The Blinking LED Procedure

Describes how to interpret front LED blinking patterns to identify errors when OSD is not working.

5.6 Software Upgrading

Provides instructions for upgrading TV main SW and Digital TV (IBO Zapper) software.

5.7 Fault Finding and Repair Tips

Offers notes on component mounting, option settings, NVM editor usage, and default value loading.

Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 26” & 32”

Shows the wiring layout for 26-inch and 32-inch LCD models, detailing connections between main modules.

Wiring Diagram 37” & 42”

Illustrates the wiring diagram for 37-inch and 42-inch LCD models (ME7 styling), showing module interconnections.

Wiring Diagram 42” 1080p

Details the wiring connections for 42-inch 1080p LCD models, including the 1080p bolt-on panel.

Wiring Diagram 47” (ME7)

Wiring Diagram 47” 1080p (ME7)

Block Diagram Video

Provides a high-level overview of the video signal path, from input sources to the display processing.

Block Diagram Audio

Illustrates the audio signal flow, including processing, amplification, and output to speakers and headphones.

Block Diagram Control & Clock Signals

SSB: DC/DC

SSB: Tuner & Demodulator

SSB: DVB - Demodulator

SSB: DVB - Mojo

SSB: Micro Processor

Shows the circuit diagram and pin configuration for the main microprocessor (Renesas).

SSB: Video Processor

Presents the circuit diagram and pin configuration for the Trident Video Processor (SVP CX32).

SSB: PNX2015: Audio Processor

Details the circuit diagram and pin configuration for the audio processor (MSP4450P).

SSB: HDMI

Details the circuit diagram and pin configuration for the HDMI receiver (Sil9025CTU).

SSB: Audio

Side A/V Panel

Keyboard Control Panel

1080P Panel: On Chip uController

1080P Panel: Flash & NVM

1080P Panel: LVDS In

1080P Panel: LVDS Out

1080P Panel: Supply In

1080P Panel: DDR SDRAM

1080P Panel: DC Power Supply

Front IR / LED Panel

Alignments

8.1 General Alignment Conditions

Specifies electrical conditions required for performing alignments, including power supply and test probe requirements.

8.3 Software Alignments

Details software alignments for Tuner (RF AGC) and RGB (White Tone) using Service Alignment Mode (SAM).

8.4 Option Settings

Explains how to set option codes to configure the microprocessor's communication with ICs.

Circuit Descriptions, Abbreviation List, and IC Data Sheets

9.1.1 SSB Cell Layout

9.3 DC/DC converters

9.5 DVB-T Signal Processing

Details the DVB-T signal path, including tuner, COFDM decoder, MPEG decoder, and Common Interface (CI) slot.

9.6 Video Processing

Explains the Trident SVP CX32 video processor's features and signal paths for analogue and digital inputs.

9.8 1080p Panel (if present)

9.9 Audio Processing

Details the audio decoding process using the MSP4450P, including Automatic Standard Detection and Sound Select.

9.10 HDMI

Explains the HDMI interface, its features, and the implementation using the Sil9025 receiver IC.