Panasonic TC-L55ET5-1 - User Manual

© Panasonic Corporation 2012.
Unauthorized copying and distribution is a violation
of law.
ORDER NO. MTNC121064AE
B32 Canada: B61
55 inch Class 1080p LCD HDTV
Model No. TC-L55ET5-1
LA35 Chassis
1 Different points
1.1. Electrical Replacement List
NOTE: These boards are forward and backward compatible, Parts No. is different because they were made by different vendors.
Please file and use this manual together with the service manual for Model No. TC-L55ET5,
Order No. MTNC120315CE.
Ref. No. Parts No. Parts name & Description Pcs Remarks
TC-L55ET5 TC-L55ET5-1
PCB TXN/P1SJUU TXN/P1SJUUP CIRCUIT BOARD P 1
PAVCA (RTL)
PCB TXNGK1SJUU TXNGK1SJUUP CIRCUIT BOARD GK 1
PAVCA (RTL)

Summary

1 Different points

1.1. Electrical Replacement List

Lists electrical replacement parts, highlighting differences between TC-L55ET5 and TC-L55ET5-1 models.

1 Safety Precautions

1.1. General Guidelines

Provides guidelines for safe servicing, including leakage current checks and handling of components.

2 Warning

2.1. Prevention of Electrostatic Discharge (ESD)

Details methods to prevent damage to sensitive electronic components from static electricity.

2.2. About lead free solder (PbF)

Explains the use of lead-free solder, its properties, and recommended soldering practices.

3 Service Navigation

3.1. PCB Layout

Illustrates the physical layout of the main circuit boards (A-Board, K-Board, P-Board, GK-Board).

5 Technical Descriptions

5.1. Specification of KEY for DTCP-IP, WMDRM and Widevine

Details the specifications and replacement procedures for security keys used in content protection.

6 Service Mode

6.1. How to enter into Service Mode

Explains how to access the service mode and lists available adjustment options and their default values.

6.2. SRV-TOOL

Describes the SRV-TOOL function, including accessing SOS history and power on time/count.

6.3. Hotel mode

Details how to access and configure the hotel mode for restricting TV functions and settings.

6.4. Data Copy by SD Card

Explains how to copy and restore TV settings and data using an SD card for board replacement or hotel setup.

7 Troubleshooting Guide

7.1. Check of the IIC bus lines

Provides steps to perform self-checks for IIC bus lines and interpret the results for fault diagnosis.

7.2. Power LED Blinking timing chart

Lists LED blinking patterns and their corresponding error codes to identify defective blocks.

7.3. LCD Panel test mode

Describes how to enter the LCD panel test mode to diagnose issues with the panel or the A-board.

8 Disassembly and Assembly Instructions

8.1. Disassembly Flow Chart for the Unit

Presents a visual flow chart outlining the sequence of disassembly for various TV components.

8.2. Disassembly Procedure for the Unit

Details the step-by-step procedures for disassembling specific parts of the TV, including covers, boards, and internal components.

9 Measurements and Adjustments

9.1. Voltage chart of P-board

Lists test points and their specified voltage values for the P-board (Power supply).

9.2. Voltage chart of A-board

Lists test points and their specified voltage values for the A-board (Main board).

10 Block Diagram

10.1. Main Block Diagram

Illustrates the overall functional blocks of the TV and their interconnections.

10.2. Block (1;2) Diagram

Shows a detailed block diagram of the TV's internal circuitry, part 1.

10.3. Block (2;2) Diagram

Shows a detailed block diagram of the TV's internal circuitry, part 2.

11 Wiring Connection Diagram

11.1. Caution statement.

Provides important cautions regarding the correct assembly and connection of flexible cables.

11.2. Wiring 1

Illustrates the first set of internal wiring connections within the TV unit.

11.3. Wiring 2

Details the second set of internal wiring connections, including specific cable routing and placement.

11.4. Wiring 3

Shows the third set of internal wiring connections, with diagrams and tolerance specifications.

11.5. Wiring 4

Presents the fourth set of internal wiring connections, illustrating cable routing and placement.

12 Schematic Diagram

Schematic Diagram Notes

Explains symbols, notations, and precautions used in the schematic diagrams.

13 Printed Circuit Board Diagrams

P-Board Diagrams

Illustrates the circuit layout for the P-board (Power supply), in two parts.

K-Board and GK-Board Diagrams

Shows the circuit layouts for the K-board and GK-board.

A-Board Diagrams

Presents the circuit layout for the A-board (Main board) across nine pages.

Other Board Diagrams (P;A-Board Sides, K;GK-Boards)

Displays foil and component side views for P and A boards, plus K and GK boards.

14 Exploded View

Exploded View of TV Components

Provides a visual diagram showing the assembly of the TV's main parts and accessories.

Panasonic TC-L55ET5-1 Specifications