Philips PL22.06 - User Manual

Service Manual
Contents
55PUL7472/F7 PHILIPS (Serial No.: ME1)
55” LCD TV
chassis PL22.06
220111
© 2022 Funai Electric Co., Ltd.
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to the fullest extent of the law.
This service manual contains information of different types of models.
Make sure to refer to the section describing your model.

Summary

IMPORTANT SAFETY NOTICE

SPECIFICATIONS

TUNER; NTSC

Technical specifications for TV tuners in NTSC format.

TUNER; ATSC

Technical specifications for TV tuners in ATSC format.

LCD PANEL

Technical specifications for the LCD panel.

VIDEO

Technical specifications for video playback.

AUDIO

Technical specifications for audio output.

IMPORTANT SAFETY PRECAUTIONS

Safety Precautions for LCD TV Circuit

Crucial safety guidelines for servicing LCD TVs.

Antenna Cold Check

Procedure to check antenna circuit for safety issues.

Leakage Current Hot Check

Procedure to test for leakage current while the set is powered.

Precautions during Servicing

Safety Check after Servicing

Clearance Distance

Verifying minimum spacing for safety compliance after service.

Leakage Current Test

Measuring electrical current leakage to ensure user safety.

STANDARD NOTES FOR SERVICING

Circuit Board Indications

Identifying key pins and connectors on circuit boards.

How to Remove; Install Flat Pack-IC

Procedures for safely removing and installing flat pack ICs.

Instructions for Handling Semi-conductors

Ground for Human Body

Proper grounding procedures for technician safety.

Ground for Workbench

Workbench grounding for semiconductor handling safety.

CABINET DISASSEMBLY INSTRUCTIONS

Disassembly Flowchart

Visual guide detailing the sequence of disassembly steps.

Disassembly Method

Step-by-step instructions for disassembling the unit.

Precautions for LCD Panel Assembly

Important safety and handling guidelines for LCD panel disassembly/reassembly.

How to Remove the Cell Assembly

Step-by-step guide for removing the TV's cell assembly.

How to Attach Adjunctive Equipment

Instructions for attaching accessory parts to the front bezel.

TV Cable Wiring Diagram

ELECTRICAL ADJUSTMENT INSTRUCTIONS

Test Equipment Required

List of necessary tools for electrical adjustments.

How to Set Up Service Mode

Guide for accessing and navigating the service menu.

Purity Check Mode

Procedure to check screen for non-active pixels using color patterns.

White Balance Adjustment

Adjusting color beams for accurate white reproduction.

HOW TO INITIALIZE THE LCD TV

FIRMWARE RENEWAL MODE

TROUBLESHOOTING

Power Supply Section Troubleshooting

Troubleshooting procedures for the power supply unit.

Video Signal Section Troubleshooting

Troubleshooting procedures for video signal issues.

Audio Signal Section Troubleshooting

Troubleshooting procedures for audio signal problems.

BLOCK DIAGRAMS

System Control Block Diagram

Diagram illustrating the system's main control functions.

Video;Audio Block Diagram

Diagram showing the video and audio signal processing paths.

Digital Signal Process Block Diagram

Diagram illustrating the digital signal processing stages.

LED Backlight Drive Block Diagram

Diagram showing the LED backlight control circuitry.

Power Supply Block Diagram

Diagram illustrating the power supply unit's architecture.

SCHEMATIC DIAGRAMS; CBA AND TEST POINTS

Standard Notes for Schematics

Important guidelines and symbols used in schematic diagrams.

Schematic Diagram Conventions

Explains cautions, notes, symbols, and voltage indications in schematics.

How to Read Converged Lines

Guide on interpreting line connections in schematics.

Test Point Information

Explanation of symbols used to indicate test points on PCBs.

Power Supply Schematic Diagram

Digital Main Schematic Diagrams

IR Sensor Schematic Diagram

Power Supply CBA Views

WIRING DIAGRAM

EXPLODED VIEWS

Packing Procedures

PARTS LIST

Mechanical Parts List

List of mechanical components and their part numbers.

LCD Panel Assembly Parts

List of parts specific to the LCD panel assembly.

Electrical Parts List

List of electrical components, capacitors, diodes, ICs, and connectors.

Transistors

List of transistors with part numbers and specifications.

Resistors

List of resistors with part numbers and specifications.

Miscellaneous Parts

List of miscellaneous components like heat sinks, beads, fuses, and varistors.

REVISION HISTORY

COMPARISON LIST OF MODEL NAMES

Philips PL22.06 Specifications