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Philips 42ta648bx/37 User Manual

Philips 42ta648bx/37
96 pages
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Published by WF 0864 BU TV Consumer Care Printed in the Netherlands Subject to modification EN 3122 785 17741
©
Copyright 2008 Koninklijke Philips Electronics N.V.
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.
Color Television Chassis
LC8.1U
LA
H_17740_000.eps
240408
MG8
MG8
ME8
ME8
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 20
6. Block Diagrams, Test Point Overview, and
Waveforms
Wiring Diagram 32" (ME8/MG8) 33
Wiring Diagram 42" & 47" (ME8/MG8) 34
Wiring Diagram 52" (ME8/MG8) 35
Block Diagram Video 36
Block Diagram Audio 37
Block Diagram Control & Clock Signals 38
SSB: Test Points (Bottom Side) 39
I2C IC Overview 40
Supply Lines Overview 41
7. Circuit Diagrams and PWB Layouts Diagram PWB
SSB: DC / DC Converter (B1) 42 59-68
SSB: Tuner & Demodulator (B2) 43 59-68
SSB: Class-D & Muting (B3) 44 59-68
SSB: MT5382-Power & Tuner (B4A) 45 59-68
SSB: MT5382-DDR2 SDRAM (B4B) 46 59-68
SSB: MT5382-Flash & NVM (B4C) 47 59-68
SSB: MT5382-LVDS (B4D) 48 59-68
SSB: MT5382-HDMI & Mux (B4E) 49 59-68
SSB: MT5382-Analog I/Os (B4F) 50 59-68
SSB: MJC MT8280-Power (B5P) 51 59-68
SSB: MJC MT8280-DDR2 (B5Q) 52 59-68
SSB: MJC MT8280-LVDS (B5R) 53 59-68
SSB: FPGA-AmbiLight (B6K) 54 59-68
SSB: ITV-Channel Decoder (Reserved) (B7L) 55 59-68
SSB: ITV-Pro:Idiom (Reserved) (B7M) 56 59-68
SSB: SRP List Explanation 57
SSB: SRP List Part 1 58
Keyboard Control Panel (E) 69 70
Keyboard Control Panel (E) 69 71
IR & LED Panel(J) 72 73
8. Alignments 75
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 79
Abbreviation List 89
IC Data Sheets 91
10. Spare Parts List 95
11. Revision List 95

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Philips 42ta648bx/37 Specifications

General IconGeneral
BrandPhilips
Model42ta648bx/37
CategoryTV
LanguageEnglish

Summary

1. Technical Specifications, Connections, and Chassis Overview

1.1 Technical Specifications

Details display, resolution, contrast, viewing angles, and sound specifications.

1.2 Connection Overview

Describes side and rear I/O ports, including HDMI, USB, AV, and antenna connections.

1.3 Chassis Overview

Illustrates the internal PWB/CBA locations for different screen sizes.

2. Safety Instructions, Warnings, and Notes

2.1 Safety Instructions

Outlines essential safety regulations for performing repairs on the set.

2.2 Warnings

Highlights critical warnings regarding ESD, high voltage, and component handling during repair.

2.3 Notes

Provides general notes on measurements, schematic symbols, BGA ICs, and soldering.

2.3.5 Alternative BOM Identification

Explains how the third digit of the serial number identifies the Bill Of Materials (BOM) used.

2.3.6 Board Level Repair vs. Component Level Repair

Discusses whether to exchange or repair boards, emphasizing OEM return policies.

2.3.7 Practical Service Precautions

Offers essential precautions for service, including electrical shock avoidance and high voltage insulation testing.

3. Directions for Use

3.1 Download Information

Provides website links for downloading service information and manuals.

4. Mechanical Instructions

4.1 Cable Dressing

Provides detailed illustrations and instructions for routing internal cables correctly during assembly.

4.2 Service Positions

Describes recommended set positions and foam bar usage for easier and safer servicing.

4.3 Assy/Panel Removal ME8 Styling

Details the procedure for removing the back cover and accessing internal components, with warnings.

4.4 Set Re-assembly

Outlines the steps for reassembling the set, emphasizing cable placement and EMC foam.

5. Service Modes, Error Codes, and Fault Finding

5.1 Test Points

Explains how test points are indicated in schematics and layouts for diagnosis.

5.2 Service Modes

Describes various service modes (SDM, SAM, CSM, ComPair) and their functions for repair.

5.3 Service Tools

Introduces ComPair as a Windows-based tool for diagnostics and software upgrades.

5.4 Error Codes

Explains the error buffer and how error codes indicate TV failures.

5.5 The Blinking LED Procedure

Details how to interpret front LED blinking sequences for error identification.

5.6 Fault Finding and Repair Tips

Offers general advice on software protections, hardware protections, and NVM editor usage.

5.7 Software Upgrading

Guides on upgrading TV software using a USB port and the "autorun.upg" file.

6. Block Diagrams, Test Point Overview, and Waveforms

6.1 Wiring Diagram 32" (ME8/MG8)

Provides a detailed wiring diagram for the 32-inch ME8/MG8 models.

6.2 Wiring Diagram 42" & 47" (ME8/MG8)

Presents a detailed wiring diagram for the 42" and 47" ME8/MG8 models.

6.3 Wiring Diagram 52" (ME8/MG8)

Offers a detailed wiring diagram for the 52-inch ME8/MG8 models.

6.4 Block Diagram Video

Illustrates the video signal flow and processing within the chassis.

6.5 Block Diagram Audio

Depicts the audio signal path and processing stages.

6.6 Block Diagram Control & Clock Signals

Shows the flow of control and clock signals across the system.

6.7 SSB: Test Points (Bottom Side)

Locates test points on the Small Signal Board (SSB) bottom side for troubleshooting.

6.8 I2C IC Overview

Details the I2C communication paths between ICs on the SSB.

6.9 Supply Lines Overview

Provides an overview of the power supply lines distributed throughout the SSB.

7. Circuit Diagrams and PWB Layouts

7.1 SSB: DC/DC Converter

Shows the schematic and PWB layout for the DC/DC converter circuit.

7.2 SSB: Tuner & Demodulator

Presents the circuit diagram and PWB layout for the tuner and demodulator.

7.3 SSB: Class-D & Muting

Details the circuit and PWB layout for the Class-D audio amplifier and muting circuit.

7.4 SSB: MT5382-Power & Tuner

Provides the circuit diagram and PWB layout for the MT5382 power and tuner sections.

7.5 SSB: MT5382-DDR2 SDRAM

Shows the circuit and PWB layout for the MT5382 DDR2 SDRAM connections.

7.6 SSB: MT5382-Flash & NVM

Presents the circuit and PWB layout for the MT5382 flash memory and NVM.

7.7 SSB: MT5382-LVDS

Details the circuit and PWB layout for the MT5382 LVDS interface.

7.8 SSB: MT5382-HDMI & Mux

Shows the circuit and PWB layout for the MT5382 HDMI inputs and multiplexer.

7.9 SSB: MT5382-Analog I/Os

Presents the circuit and PWB layout for the MT5382 analog input/output connections.

7.10 SSB: MJC MT8280-Power

Details the circuit and PWB layout for the MJC MT8280 power supply interface.

7.11 SSB: MJC MT8280-DDR2

Shows the circuit and PWB layout for the MJC MT8280 DDR2 memory connections.

7.12 SSB: MJC MT8280-LVDS

Presents the circuit and PWB layout for the MJC MT8280 LVDS interface.

7.13 SSB: FPGA-Ambilight

Provides the circuit and PWB layout for the Ambilight FPGA module.

7.14 SSB: ITV-Channel Decoder (Reserved)

Shows the circuit and PWB layout for the reserved ITV Channel Decoder.

7.15 SSB: ITV-Pro:Idiom (Reserved)

Details the circuit and PWB layout for the reserved ITV Pro:Idiom module.

7.16 SSB: SRP List Explanation

Explains the Service Reference Protocol (SRP) list used for signal tracing.

7.17 SSB: SRP List Part 1

Lists signal references and their schematic locations as per SRP.

7.18 Layout Small Signal Board (Overview Top Side)

Provides an overview of the SSB layout, divided into sections.

7.19 Layout Small Signal Board (Part 1 Top Side)

Shows the component placement on the top side of SSB Part 1.

7.20 Layout Small Signal Board (Part 2 Top Side)

Details component placement on the top side of SSB Part 2.

7.21 Layout Small Signal Board (Part 3 Top Side)

Illustrates component placement on the top side of SSB Part 3.

7.22 Layout Small Signal Board (Part 4 Top Side)

Shows component placement on the top side of SSB Part 4.

7.23 Layout Small Signal Board (Part 1 Bottom Side)

Details component placement on the bottom side of SSB Part 1.

7.24 Layout Small Signal Board (Part 2 Bottom Side)

Illustrates component placement on the bottom side of SSB Part 2.

7.25 Layout Small Signal Board (Part 3 Bottom Side)

Shows component placement on the bottom side of SSB Part 3.

7.26 Layout Small Signal Board (Part 4 Bottom Side)

Details component placement on the bottom side of SSB Part 4.

7.27 Keyboard Control Panel

Provides circuit diagrams and PWB layouts for the keyboard control panel.

7.28 IR & LED Panel

Shows the circuit diagram and PWB layout for the IR and LED panel.

7.29 Layout IR & LED Panel (Top Side)

Illustrates the component layout for the IR & LED panel (top side).

8. Alignments

8.1 General Alignment Conditions

Outlines the necessary conditions and settings for performing electrical adjustments.

8.2 Hardware Alignments

States that no hardware alignments are foreseen for this chassis.

8.3 Software Alignments

Details how to perform software alignments, including white tone and RGB adjustments.

8.3.1 RGB Alignment

Explains the procedure for RGB alignment, including white tone and black level offset.

8.4 Option Settings

Guides on setting option codes to configure the TV for specific hardware and features.

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets

9.1 Introduction

Introduces the LC8.1U chassis, its development name, and key components.

9.2 LCD Power Supply

Describes the PSU unit, its types, and voltage outputs to the chassis.

9.3 DC/DC converters

Details the on-board DC-DC converters and the voltages they supply to the SSB.

9.4 Front-End

Explains the tuner and signal processing for analog and digital reception.

9.5 Video Processing

Describes the video signal processing path within the MT5382 processor.

9.6 Audio Processing

Details the audio signal processing performed by the MT5382 processor.

9.7 HDMI

Explains the HDMI implementation, receivers, CEC support, and connectors.

9.8 Ambilight (when present)

Describes the location and implementation of AmbiLight units.

9.9 Control Signal Description

Overviews the control signal flow for the LC08SP platform, including GPIO functions.

9.10 Abbreviation List

Provides a comprehensive list of abbreviations used throughout the document.

9.11 IC Data Sheets

Shows internal block diagrams and pin configurations for key ICs.

10. Spare Parts List

11. Revision List

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