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Philips EM5A P/M User Manual

Philips EM5A P/M
154 pages
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Published by WO 0271 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 12611
©
Copyright 2002 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
EM5A P/M
AA
CL 26532079_000.eps
240702
Contents Page Contents Page
1. Technical Specifications, Connections and
Chassis Overview 2
2. Safety & Maintenance Instructions, Warnings and
Notes 4
3. Directions for Use 6
4. Mechanical Instructions 17
5. Service Modes, Error Codes and Faultfinding 21
6. Block Diagram, Testpoints, and Overviews
Wiring Diagram 31
Block Diagram Supply and Deflection 32
Block Diagram Video 33
Block Diagram Audio 34
I
2
C-IC Overview 35
Supply Lines Overview 36
Testpoint Overview LSP & CRT/Auto SCAVEM 37
Testpoint Overview SSB 38
7. Electrical Diagrams and PWB’s Diagram CBA
Main Supply (Diagram A1) 39 49-55
Stand-by Supply (Diagram A2) 40 49-55
Line Deflection (Diagram A3) 41 49-55
Frame Deflection & E/W Drive (Diagram A4) 42 49-55
Rotation Circuitry (Diagram A5) 43 49-55
Audio Amplifier (Diagram A6) 44 49-55
Tuner SIMM connector (Female) (Diagram A8) 45 49-55
Receiver (Diagram A9) 46 49-55
Front (Diagram A10) 46 49-55
Inputs/Outputs (Diagram A11) 47 49-55
Diversity Tables LSP 48
SIMM connector (Male) (Diagram B1) 56 66-75
IF, I/O Videoprocessing (Diagram B2) 57 66-75
PICNIC (Diagram B3A)58 66-75
Diversity Tables SSB 59 66-75
Falconic (Diagram B3B)60 66-75
Eagle (Diagram B3C)61 66-75
HOP (Diagram B4) 62 66-75
OTC (Diagram B5) 63 66-75
Audio Demodulator (Diagram B6) 64 66-75
Anti Moiré (Diagram B9) 65 66-75
Headphone Amplifier (Diagram B10) 65 66-75
DW Panel: Multi PIP Contr. (Diagram C1) 76 80-81
DW Panel: Tuner (Diagram C2) 77 80-81
DW Panel: I/O Processing (Diagram C3) 78 80-81
DW Panel: IF Video Sync (Diagram C4) 79 80-81
AC Power Switch Panel 1 (Diagram E) 82 83
AC Power Switch Panel 2 (Diagram E) 84 85
CRT 1(Diagram F1) 86 88-89
CRT/Auto Scavem Panel 1 (Diagram F2) 87 88-89
CRT 2 (Diagram F1) 90 92-93
CRT/Auto Scavem Panel 2 (Diagram F2) 91 92-93
DC Shift Panel(Diagram G) 94 94
VDAF + 2nd Orders Panel (Diagram I) 95 96
HD Jack Panel: Control (Diagram N1) 97 100
HD Jack Panel: Inputs/Outputs (Diagram N2) 98 100
HD Jack Panel: Sync Slicer (Diagram N3) 99 100
HD Jack Panel: Matrix (Diagram N4) 99 100
Side I/O Panel (Diagram O) 101 102
Top Control 1 (Diagram P) 103 103
Top Control 2 (Diagram P) 104 104
Auto SCAVEM(Diagram SC1) 105 106
8. Alignments 107
9. Circuit Description 116
Abbreviation List 140
IC Data Sheets 142
10 Spare Parts List 143
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Philips EM5A P/M Specifications

General IconGeneral
Display TechnologyLED
Aspect Ratio16:9
Audio Output20W
Remote ControlYes
Screen Size55 in
Input Voltage100-240V

Summary

Technical Specifications, Connections and Chassis Overview

Technical Specifications

Details on reception, sound systems, AV connections, channel selections, and miscellaneous specifications.

Connections

Information on front controls and side connections, including S-Video, Audio/Video, and headphone.

Chassis Overview

Safety and Maintenance Instructions, Warnings, and Notes

Safety Instructions

Guidelines and regulations for safe repair procedures, including handling high voltage and component replacement.

Directions for Use

Mechanical Instructions

Set Disassembly

Step-by-step instructions for disassembling the TV set, including cover and component removal.

Assembly / Board Removal

Procedures for swapping complete assemblies or printed wiring boards (PWBs).

Set Reassembly

Instructions for reassembling the set in reverse order of disassembly.

Service Modes, Error Codes and Fault Finding

Service Modes

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

Problems and Solving Tips (related to CSM)

Troubleshooting tips for common TV settings-related problems.

ComPair

Introduction and specifications for ComPair, a service tool for Philips Consumer Electronics products.

Error Codes

Explanation of the error code buffer and how to read and clear it.

Blinking LED Procedure

Procedure to make error buffer contents visible via the front LED, useful when there is no picture.

Protections

Description of the protection system, including I2C, OTC, and hardware related protections.

Repair tips

Miscellaneous tips for repairing the TV, including handling hot components and start-up sequences.

Wiring Diagram, Block Diagrams and Overviews

Wiring Diagram

Schematic representation of the TV's wiring connections.

Block Diagram Supply and Deflection

Block diagram illustrating the main supply and deflection circuitry.

Block Diagram Video

Block diagram detailing the video processing stages and signal flow.

Block Diagram Audio

Block diagram illustrating the audio signal path and processing.

Testpoint Overview LSP and CRT/Auto SCAVEM Panel

Layouts showing test points on the LSP, CRT panel, and Auto SCAVEM panel.

Testpoint Overview Small Signal Board

Layouts showing test points on the Small Signal Board (SSB) for diagnostics.

Circuit Diagrams and PWB Layouts

Large Signal Panel: Main Supply

Circuit diagram for the main power supply unit.

Large Signal Panel: Stand-by Supply

Circuit diagram for the standby power supply unit.

Large Signal Panel: Line Deflection

Circuit diagram for the horizontal (line) deflection stage.

Large Signal Panel: Frame Deflection E/W Drive

Circuit diagram for the vertical (frame) deflection and East/West drive stages.

Large Signal Panel: Audio Amplifier

Circuit diagram for the audio amplifier stages, including subwoofer and center speakers.

Large Signal Panel: Inputs/Outputs

Circuit diagram for various AV inputs and outputs, including SCART, CVBS, SVHS, and HD interfaces.

Small Signal Board: IF, I/O Video Processing

Circuit diagram for the IF and I/O video processing section.

Small Signal Board: PICNIC

Circuit diagram for the PICNIC IC, responsible for 100Hz conversion and picture improvement.

Alignments

Hardware Alignments

Hardware-specific alignment procedures, including Vg2, Focus, and Geometry.

Software Alignments

Software-based alignments for Geometry, White Tone, and Tuner IF settings.

Option Settings

Circuit Descriptions and Abbreviation List

Power Supply

Description of the power supply system, including main supply and standby supply circuits.

Control

Description of the OTC (microprocessor) functions, data storage, and power supply.

Tuner & IF

Description of the tuner's capabilities and the IF and video processing.

Video: HD Jack Interface

Description of the HD Jack interface module's functions.

Video: High-end Input Processor (HIP, Diagram B2)

Description of the HIP's functions including IF demodulation and sync acquisition.

Video: Feature Box 7 (50 Hz signals)

Description of the feature box (FBX7) for picture improvement on 50 Hz signals.

Video: Feature Box 7 (60 Hz signals)

Description of the feature box (FBX7) for picture improvement on 60 Hz signals.

PICNIC/FALCONIC (Diagram B3a and B3b)

Description of PICNIC and FALCONIC ICs for 100Hz conversion and picture enhancement.

Eagle (Diagram B3c)

Description of Eagle IC functions for picture improvements like LTI, CTI, and peaking.

Horizontal (Line) Deflection (Diagram A3)

Description of the horizontal deflection stage operation and principles.

Vertical (Frame) Deflection (Diagram A4)

Description of the vertical deflection stage drive, flyback generation, and protections.

Protection Circuits

Details on protection circuits like Bridge Coil, Frame Output, and ARC.

Audio (Diagram B6, B10 & A6)

Description of the audio system, including MSP IC, amplifier, and volume control.

CRT Panel / Rotation

Description of CRT panel RGB amplifiers and rotation control.

Auto Scavem (Diagrams SC1 and F2)

Description of the Auto Scavem circuit for sharpness improvement.

Double Window (DW, diagram C)

Description of the Double Window (DW) and Picture-in-Picture (PIP) functionalities.

Software Related Features

Description of AutoTV features like Noise Reduction, Auto Sharpness, and Auto Ambient.

Spare Parts List

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