Panasonic TH-L42S25S

© Panasonic Corporation 2010. Unauthorized
copying and distribution is a violation of law.
ORDER NO. MTV1002004CE
LCD TV
Model No. TH-L42S25S
Chassis: LA02
Destination: INDONESIA
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 3
1.1.2. Leakage Current Hot Check (See Figure
1.) --------------------------------------------------------- 3
2 Warning -------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 4
2.2. About lead free solder (PbF)---------------------------- 5
3 Service Navigation ----------------------------------------------- 6
3.1. Service Hint ------------------------------------------------- 6
4 Specifications ----------------------------------------------------- 7
5 Service Mode ------------------------------------------------------ 9
5.1. How to enter into Service Mode ----------------------- 9
5.1.1. Contents of adjustment mode --------------------- 9
5.1.2. How to exit---------------------------------------------- 9
5.2. SRV-TOOL -------------------------------------------------10
5.2.1. How to access ----------------------------------------10
5.2.2. Display of SOS History -----------------------------10
5.2.3. POWER ON TIME/COUNT----------------------- 10
5.2.4. Exit ------------------------------------------------------ 10
5.3. Service Mode Adjustment------------------------------ 11
5.3.1. Self Check Mode ------------------------------------ 11
5.3.2. Hotel Mode Adjustment---------------------------- 11
5.3.3. Hotel Mode-------------------------------------------- 11
6 Troubleshooting Guide --------------------------------------- 12
6.1. Check of the IIC bus lines------------------------------ 12
6.1.1. How to access --------------------------------------- 12
6.1.2. Exit ------------------------------------------------------ 12
6.1.3. Screen display --------------------------------------- 12
6.1.4. Check Point------------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
6.3. No Power--------------------------------------------------- 13
7 Disassembly and Assembly Instructions--------------- 14
7.1. AC Cord Dressing---------------------------------------- 14
7.2. AC Cord Installation ------------------------------------- 15
7.3. Control Panel Fitting------------------------------------- 16
7.4. Side AV Bracket Preparation-------------------------- 17

Panasonic TH-L42S25S Specifications

General

Screen Size	42 inches
Display Type	LCD
Aspect Ratio	16:9
Refresh Rate	60 Hz
HDMI Ports	3
USB Ports	1
Speakers	2
Component Video Input	1
Composite Video Input	1
Weight	18 kg
Backlight	CCFL
Resolution	1920 x 1080
Audio Output	20W

Summary

Safety Precautions

General Guidelines

General safety rules for servicing, including lead dress, insulation, and wiring.

Leakage Current Checks

Procedures for cold and hot leakage current measurements to prevent shock hazards.

Warnings and Handling Precautions

Electrostatic Discharge (ESD) Prevention

Techniques to prevent damage to sensitive electronic components from static electricity.

Lead-Free Solder (PbF) Handling

Guidelines for using lead-free solder, including melting points and safety.

Service Mode Operations

Entering and Exiting Service Mode

Method to access the service mode using the remote control and main unit buttons.

SRV-TOOL and SOS History

Accessing and understanding the SRV-TOOL and SOS history features in service mode.

Service Mode Adjustments

Procedures for self-check, hotel mode, and other service mode adjustments.

Troubleshooting Guide

IIC Bus Line Checks

Steps to check IIC bus lines using the self-check function and interpret the screen display.

Power LED Blinking Chart

Table correlating power LED blinking times with specific error codes for fault diagnosis.

No Power Troubleshooting

Diagnostic flowcharts for identifying the cause of no power issues based on LED status.

Disassembly and Assembly Instructions

AC Cord Dressing and Installation

Steps for routing and securing the AC power cord during assembly.

Panel and Bracket Installation

Procedures for fixing the LCD panel, mask brackets, top/bottom mountings.

Internal Component Assembly

Instructions for LVDS metal, chassis frame, PCB, clamper, and wire installation.

Pedestal Assembly

Steps for assembling the TV stand, including grease application and rotation plate.