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SERVICE
UHD TV
UN**KU650DF
UHD TV
Chassis : UKU6300G
Model
: UN49KU650DF
UN55KU650DF
UN65KU650DF
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 and Safety
Safety Precautions
General safety, servicing, and ESD precautions to prevent damage and electrical shock.
Servicing Warnings
Warning about modifying circuit boards and disconnecting power before servicing.
LED TV Servicing Guidelines
Guidelines for servicing LED TVs, including AC line cord disconnection and meter calibration.
Fire and Shock Hazard Checks
Safety checks for fire and shock hazards before returning the monitor to the user.
Product Safety Notices
Notices regarding special safety characteristics of electrical and mechanical parts.
General Servicing Precautions
Precautions for unplugging units, handling components, and checking wiring after servicing.
Static Electricity Precautions
Techniques to prevent component damage from static electricity, including handling ESD devices.
Installation Precautions
Safety precautions for carrying, installing, and operating the product to prevent fire or shock.
Product Specifications Overview
Product Information
Detailed product info including model, dimensions, and weight for different screen sizes.
Detailed Specifications
Detailed specs for General Info, Display, Video, and Audio features.
New Key Features
Highlights new key features, including Smart Hub and APPS Service.
Smart Control Features
Explanation of the Samsung Smart Remote functions and pairing process.
HDMI Color Settings
Details on HDMI UHD Color and Black Level for optimal picture quality.
Supported Formats
Info on supported image, music, and video file formats and codecs for playback.
Included Accessories
List of included accessories and their part codes, including Smart Touch Control and cables.
Disassembly and Reassembly Procedures
49KU6500 Disassembly
Procedure for disassembling and reassembling the 49-inch model, including screw removal and part identification.
55KU6500 Disassembly
Procedure for disassembling and reassembling the 55-inch model, including screw removal and part identification.
65KU6500 Disassembly
Procedure for disassembling and reassembling the 65-inch model, including screw removal and part identification.
Troubleshooting Common Issues
Troubleshooting Fault Symptoms
Guide on checking fault symptoms for Power, FUNCTION/IR, SMPS POWER, and BACKLIGHTS.
Power Troubleshooting
Steps to check for TV power issues, including standby LED, AC line voltage, and SMPS fuses.
Video Troubleshooting
Troubleshooting steps for video issues related to Main/T-CON boards and Panel defects.
Audio Troubleshooting
Troubleshooting audio issues like no sound, distortion, optical out errors, HDMI, and Bluetooth.
Network Troubleshooting
Troubleshooting network connectivity failures between TV, router, and internet.
Smart Hub Troubleshooting
Steps to troubleshoot Smart Hub connection issues, including network, DNS, ISP, and server tests.
Bluetooth/WiFi Module Troubleshooting
Troubleshooting Bluetooth/WiFi module issues, including pin voltages and MAC address errors.
Factory Mode Adjustments
Procedures for entering and navigating factory mode for TV adjustments and diagnostics.
RS-232C Control
Information on RS-232C control, including port settings and pin descriptions.
AV Control Table
Table of AV control commands for general, input, and picture settings.
TV Software Updates
Instructions for updating TV software via Internet or USB and enabling automatic updates.
Wiring Diagrams and Connectors
Internal Component Layout
Internal component layout diagrams for 49-inch, 55-inch, and 65-inch TV models.
49-inch Component Layout
Layout diagram showing the placement of main board, SMPS, speakers, and modules for the 49-inch model.
55-inch Component Layout
Layout diagram showing the placement of main board, SMPS, speakers, and modules for the 55-inch model.
65-inch Component Layout
Layout diagram showing the placement of main board, SMPS, speakers, and modules for the 65-inch model.
Overall Wiring Diagram
Overall wiring diagram showing connections between Main, SMPS, Speakers, IR, and BT/WIFI modules.
Main Board Connectors
Details of connectors on the Main Board, including USB, HDMI, LAN, AV, and component interfaces.
Main Board Connector Pin Maps
Pin maps and descriptions for various connectors on the Main Board.

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