Philips 50PFL4909/F7 User Manual

Service Manual
Contents
50PFL4909/F7 PHILIPS (Serial No.: DS1)
50” LCD TV
chassis PL14.24
140306
© 2014 Funai Electric Co., Ltd.
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Philips 50PFL4909/F7 Specifications

General

Screen Size	50 inches
Display Type	LCD
Backlight Type	LED
Refresh Rate	60 Hz
HDMI Ports	3
USB Ports	2
Smart TV	Yes
Built-in Wi-Fi	Yes
Resolution	1920 x 1080
Audio Output	20W

Summary

Important Safety Notice

Specifications

TUNER / NTSC

Technical specifications for the NTSC tuner input.

TUNER / ATSC

Technical specifications for the ATSC tuner input.

LCD PANEL

Technical specifications for the LCD display panel performance.

VIDEO

Technical specifications for video signal inputs and processing.

AUDIO

Technical specifications for audio output and performance.

Important Safety Precautions

Safety Precautions for LCD TV Circuit

Specific safety measures for the LCD TV circuitry and components.

Antenna Cold Check

Procedure to check antenna circuit safety with AC plug removed.

Leakage Current Hot Check

Procedure to test for leakage current with the unit powered on.

Standard Notes for Servicing

Circuit Board Indications

How to identify pins and markings on circuit boards.

Pb (Lead) Free Solder

Information on using lead-free solder for specific PCBs.

How to Remove / Install Flat Pack-IC

Detailed steps for removing and installing flat pack ICs.

Cabinet Disassembly Instructions

Screw Torque Specification

Recommended torque values for various screws during assembly.

Disassembly Flowchart

Visual guide of the cabinet disassembly sequence.

Disassembly Method

Detailed instructions for removing cabinet parts.

Electrical Adjustment Instructions

Test Equipment Required

List of necessary tools and equipment for adjustments.

Purity Check Mode

How to use the purity check mode for display diagnostics.

White Balance Adjustment

Procedure to adjust white balance for accurate color reproduction.

How to Initialize the LCD TV

Firmware Renewal Mode

Equipment Required

List of items needed for firmware update.

Firmware Update Procedure

Step-by-step instructions for performing firmware updates.

Troubleshooting

Power Supply Section

Troubleshooting steps specific to the power supply unit.

Block Diagrams

System Control Block Diagram

Diagram of the main system control circuitry.

Video/Audio Block Diagram

Diagram of video and audio signal processing paths.

Digital Signal Process Block Diagram

Diagram of the digital signal processing functions.

LED Backlight Drive Block Diagram

Diagram of the LED backlight driver circuitry.

Power Supply Block Diagram

Diagram of the power supply circuit operation.

Schematic Diagrams / CBA and Test Points

Standard Notes

Important notes and warnings regarding schematic diagrams.

List of Caution, Notes, and Symbols

Explanation of symbols and cautions used in schematic diagrams.

Voltage Indications on Schematics

How voltage values are represented in circuit diagrams.

How to Read Converged Lines

Method for interpreting connection lines in schematics.

Test Point Information

Guidance on identifying and using test points.

Wiring Diagram

Exploded Views

Packing

Parts List [50PFL4909/F7 (Serial No.: DS1)]

Mechanical Parts

List of mechanical components and their part numbers.

Electrical Parts

List of electronic components and their part numbers.

POWER SUPPLY CBA

List of parts specifically for the Power Supply Circuit Board.

DIGITAL MAIN CBA UNIT

List of parts for the Digital Main Circuit Board Assembly.

MSW ASSEMBLY

List of parts for the MSW Assembly.

Revision History

Comparison List of Model Names