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SERVICE
TFT-LCD TV
UA**D7000L*
LED-TV
Chassis : U55A
Model
: UA46D7000L*
UA55D7000L*
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Wiring Diagram
Contents

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Table of Contents
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Summarization of Contents

Precautions
Safety Precautions
Follow safety, servicing, and ESD precautions to prevent damage and protect against hazards.
Servicing Precautions
General servicing precautions for safe and effective maintenance.
Electrostatically Sensitive Devices (ESD) Precautions
Techniques to reduce component damage caused by static electricity.
Installation Precautions
Safety measures to follow during product installation.
Product Specifications
Product Information
Details on product information, including model comparison.
Feature & Specifications
Comprehensive features and technical specifications for the TV models.
Spec Comparison to the Old Models
Comparison of specifications between new and older TV models.
Detail Factory Option
Details on factory options and settings for main board replacement.
New Functions Explanation
Explanation of new smart TV functions like Smart Hub and Full Browser.
Built in Wi-Fi
Instructions for setting up and using the built-in Wi-Fi features.
Accessories
List of included accessories with their respective part codes.
Disassembly and Reassembly
Disassembly and Reassembly
Step-by-step procedures for disassembling and reassembling the LED TV.
Assembly of Touch Function
Instructions for assembling the touch function component.
Troubleshooting
Troubleshooting
Initial checks and common troubleshooting steps for TV malfunctions.
Simple flow chart of malfunction
Flowchart to diagnose and identify the cause of TV malfunctions.
How to check fault symptom
Detailed procedure for checking specific fault symptoms and their remedies.
No Video (Analog PC signal) Genoa-P
Troubleshooting steps for no video issues with analog PC input.
No Video (HDMI - Digital Signal) Valencia
Troubleshooting steps for no video issues with HDMI digital signal.
No Video (Tuner DTV) Genoa-P
Troubleshooting steps for no video issues with Tuner DTV input.
No Video (Video CVBS 1, 2) Valencia
Troubleshooting steps for no video issues with CVBS input.
No Sound (1.Speaker 2.Monitor_out, 3.Optical) Genoa-P
Troubleshooting steps for no sound issues from speakers or audio outputs.
Alignments and Adjustments
General instructions for performing alignments and adjustments.
Factory Mode Adjustments
Procedure for entering and adjusting factory mode settings.
Factory Data
Detailed list and description of factory data parameters.
Software Upgrade
Instructions for upgrading the TV's software via USB or online.
RS-232C
Information on RS-232C control and serial communication.
AV control code
Control codes for managing AV input and settings via AV control.
Rear Cover Dimension
Dimensional information for the rear cover of the TV.
Service Item
List of service items, their locations, and visual references.
Wiring Diagram
Wiring Diagram
Schematic showing the internal wiring connections of the TV.
Connector Functions
Description of functions for various connectors.
Cables
Identification and details of internal cables used in the TV.
Exploded View & Part List
Exploded View
Diagram illustrating the exploded view of the TV components.
Parts List
A comprehensive list of all parts used in the TV assembly.
Electrical Parts List
Detailed list of electrical components with part codes and specifications.

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