Samsung UN TU69 Series Repair Manual

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Repair Guide

Basic Model

UN43TU690TFXZA

Applicable Model

UN**TU69**

Ver.1.0

Table of Contents

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Summary of Contents for Samsung UN TU69 Series

Page 1 Repair Guide Basic Model UN43TU690TFXZA Applicable Model UN**TU69** Ver.1.0...
Page 2: Table Of Contents
Contents 1. Precautions 1-1. Safety Precautions ..........................1-1 1-1-1. Warnings ..........................1-1 1-1-2. Servicing the Product ......................1-1 1-1-3. Fire and Shock Hazard ......................1-1 1-1-4. Product Safety Notices ......................1-2 1-2. Servicing Precautions ........................1-3 1-2-1. General Servicing Precautions ...................1-3 1-3. Electrostatically Sensitive Devices (ESD) Precautions ..............1-4 1-4.
Page 3 Samsung- authorized service provider. Any damage or defect to product resulting from a repair, or an attempt to repair, the product by any person other than a Samsung certified service provider will not be covered by the warranty.
Page 4 Samsung’s liability in any case shall be limited to the greatest extent permitted by law. Samsung reserves the right, at its sole discretion, to change, modify, add or remove portions of any part of this manual at any time. It is your responsibility to check the manual periodically for changes. Your use of the manual...
Page 5: Precautions
Precautions 1. Precautions 1-1. Safety Precautions • Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.
Page 6: Product Safety Notices
Precautions 6. Observe the original lead dress, especially near the following areas: Antenna wiring, sharp edges, and especially the AC and high voltage power supplies. Always inspect for pinched, out-of-place, or frayed wiring. Do not change the spacing between components and the printed circuit board. Check the AC power cord for damage. Make sure that no wires or components touch thermally hot parts.
Page 7: Servicing Precautions
Following the repair by a non-authorised service provider, self-repair or non-professional repair of the product, Samsung is not liable for any damage to the product, any injury or any other product safety issue caused by any attempt to repair the product which does not carefully follow these repair and maintenance instructions.
Page 8: Electrostatically Sensitive Devices (Esd) Precautions
Precautions 1-3. Electrostatically Sensitive Devices (ESD) Precautions Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-effect transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
Page 9: Installation Precautions
Precautions 1-4. Installation Precautions 1. For safety reasons, more than a people are required for carrying the product. 2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. 3. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.
Page 10: Disassembly And Reassemble
This section of the service manual describes the disassembly and reassembly procedures for the LED TV. 1. Disconnect the LED TV from the power source before disassembly. 2. Follow these directions carefully. - Use the Samsung Service tool to disassemble the cabinet. • Recommend to use the Samsung Service tool CAUTION - Recommended Torque for Cabinet/Stand screws : 10 ~ 12kgf.
Page 11 3. Disassembly and Reassemble Description & Screws Picture Description Insert the Open Jig completely into the tab of the rear cover’s left side bottom corner and Jig Direction following directions 1→2→3. Assembly Misc P-jig-2017 BN81-14946A Locking tabs locations • 43 inches - Top : 8 point - Left/Right : 4 point - Bottom : 6 point...
Page 12 3. Disassembly and Reassemble Description & Screws Picture Description • 55 inches - Top : 10 point - Left/Right : 4 point - Bottom : 10 point - Cover Raer : 3 point Cover Rear Bottom Lift top side then pull back to remove the back cover.
Page 13 3. Disassembly and Reassemble Description & Screws Picture Description Remove the Cables. 1CNT • FFC Cables • ASSY SPEAKER P-FRONT Cable • LEAD CONNECTOR-SUB ASSY Cable FFC Cables ASSY SPEAKER P-FRONT Cable LEAD CONNECTOR-SUB ASSY Cable 2CNT FFC Cables ASSY SPEAKER P-FRONT Cable LEAD CONNECTOR-SUB ASSY Cable...
Page 14 3. Disassembly and Reassemble Description & Screws Picture Description Remove the Integrated Module (BT/WIFI/IR/ LEAD CONNECTOR-SUB ASSY Cable FUNCTION). • LEAD CONNECTOR-SUB ASSY Cable Integrated Module (BT/WIFI/IR/FUNCTION) Remove the ASSY SPEAKER P-FRONT. ASSY SPEAKER P-FRONT Cable • ASSY SPEAKER P-FRONT Cable •...
Page 15 3. Disassembly and Reassemble Description & Screws Picture Description Before remove ASSY PCB MAIN, Discharge Capacitors 1CNT Before remove 3in1 board, Must discharge capacitors for your safety. Check discharge point(1st, 2nd block) and then, discharge with discharge-Jig. Service Jig-Capacitor Discharge Measurement point •...
Page 16 3. Disassembly and Reassemble Description & Screws Picture Description Before remove ASSY PCB MAIN, Discharge Capacitors 2CNT Before remove 3in1 board, Must discharge capacitors for your safety. Check discharge point(1st, 2nd block) and then, discharge with discharge-Jig. Measurement point Service Jig-Capacitor Discharge •...
Page 17 3. Disassembly and Reassemble Description & Screws Picture Description Remove the ASSY PCB MAIN. • Gently lift up (Top Right corner) to release the lock. • Use both hands to hold the board and slide to the left to release the board. NOTE •...
Page 18 This section of the service manual describes the disassembly and reassembly procedures for the LED TV. 1. Disconnect the LED TV from the power source before disassembly. 2. Follow these directions carefully. - Use the Samsung Service tool to disassemble the cabinet. • Recommend to use the Samsung Service tool CAUTION - Recommended Torque for Cabinet/Stand screws : 10 ~ 12kgf.
Page 19 3. Disassembly and Reassemble 2-10...
Page 20 3. Disassembly and Reassemble 2-11...
Page 21 3. Disassembly and Reassemble 2-12...
Page 22 3. Disassembly and Reassemble 2-13...
Page 23 3. Disassembly and Reassemble 2-14...
Page 24 3. Disassembly and Reassemble 2-15...
Page 25 3. Disassembly and Reassemble 2-16...
Page 26 3. Disassembly and Reassemble 2-17...
Page 27 3. Disassembly and Reassemble 2-18...
Page 28 This section of the service manual describes the disassembly and reassembly procedures for the LED TV. 1. Disconnect the LED TV from the power source before disassembly. 2. Follow these directions carefully. - Use the Samsung Service tool to disassemble the cabinet. • Recommend to use the Samsung Service tool CAUTION - Recommended Torque for Cabinet/Stand screws : 10 ~ 12kgf.
Page 29 3. Disassembly and Reassemble 2-20...
Page 30 3. Disassembly and Reassemble 2-21...
Page 31 3. Disassembly and Reassemble 2-22...
Page 32 3. Disassembly and Reassemble 2-23...
Page 33 3. Disassembly and Reassemble 2-24...
Page 34 3. Disassembly and Reassemble 2-25...
Page 35 This section of the service manual describes the disassembly and reassembly procedures for the LED TV. 1. Disconnect the LED TV from the power source before disassembly. 2. Follow these directions carefully. - Use the Samsung Service tool to disassemble the cabinet. • Recommend to use the Samsung Service tool CAUTION - Recommended Torque for Cabinet/Stand screws : 10 ~ 12kgf.
Page 36 3. Disassembly and Reassemble 2-27...
Page 37 3. Disassembly and Reassemble 2-28...
Page 38 3. Disassembly and Reassemble 2-29...
Page 39 3. Disassembly and Reassemble 2-30...
Page 40 3. Disassembly and Reassemble 2-31...
Page 41: Troubleshooting
Troubleshooting 3. Troubleshooting 3-1. After Replacing Main Board ■ Setting TV into Factory Mode Samsung IR Remote (Limited Operation) 1. TV Power Standby. 2. Press as follows. Info - Factory Factory Remote (AA81-00243B) First Screen Appearing in Factory Mode Important Screen info: T-NKLAKUC-XXXX.XX...
Page 42 Troubleshooting MAIN : Option, MODE : SATELLITE, RES : NOSIGNAL Home Updates Exit Type 55K6AU0SB Local Set SW MODEL UCU8000 Front Color UCU8000 - U55CB2 SAMPLE Writing Fornt Color ■ Replacing Main Board When replacing Main Board, certain values needs to be manually input in Factory menu to complete the replacement. Steps to Replace Main Board (Example) 1.
Page 43 Troubleshooting ② Local Set : Set according to Local region(country) ③ SW Model : Check Label Rating of the TV(located on the Rear Cover) - SW Model is digits after “/” in Version No. Choose same SW Model code from the list. Home Updates Exit...
Page 44 Troubleshooting ④ Front Color :Check Label Rating of the TV Home Updates Exit Factory Reset Type 55K6AU0SB Writing Type Local Set SW Model UCU8000 Front Color UCU8000 - U55CB2 Writing Fornt Color Model Code UN55CU8000FXZA TUNER Ch Table NONE * Reference to Front Color list in the Factory Menu <"Front Color"...
Page 45 Troubleshooting ⑤ Model code :Check Label Rating of the TV Home Updates Exit Factory Reset SAMPLE Type 55K6AU0SB Writing Type Local Set SW Model UCU8000 Front Color UCU8000 - U55CB2 Writing Front Color Model Code UN55CU8000FXZA <Model Code digits exceeded > <Set Model Code>...
Page 46 Troubleshooting ■ SVC - S/N - Writing S/N <Writing S/N : Check Label Rating of the TV > SAMPLE...

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