Samsung HG NJ470 Series Repair Manual

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Repair Guide

Basic Model

HG32NJ470NFXZA

Applicable Model

HG**NJ470*

Ver.1.0

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Summary of Contents for Samsung HG NJ470 Series

Page 1 Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide Repair Guide...
Page 2: Table Of Contents
Contents 1. Precautions 1-1. Safety Precautions ..........................1-1 ................................................................................................................................................................................................................................................................................................................................................................................................................1-1-1. Warnings ..........................1-1 ......................................................................................................................................................................................................................................................................................................................................................................................................
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 resulting from a repair, or an attempt to repair, the product by any person other than a Samsung certified service...
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 Samsung reserves the right, at its sole discretion, to change, modify, add or remove portions of any part of this...
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 Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as...
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 Samsung is not liable for any damage to the product, any injury or any other product safety issue caused by...
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 Electrostatically Sensitive Devices (ESD).
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. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock.
Page 10: Disassembly And Reassembly
Disassembly and Reassemble 2. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LED TV. This LED TV contains electrostatically sensitive devices. Use caution when handling these components. This LED TV contains electrostatically sensitive devices. Use caution when handling these components. This LED TV contains electrostatically sensitive devices.
Page 11 Disassembly and Reassemble Description & Screws Picture Description Remove the ASSY COVER P-REAR. • Remove screws from the Cover and Insert the Opening-Jig at the indicated positions to release bottom left corners of the rear cover. • 3 EA Screws 6001-002755 SCREW-MACHINE : M3 x L6, ZPC(BLK) •...
Page 12 Disassembly and Reassemble Description & Screws Picture Description • FFC CABLE FFC CABLE Remove the ASSY SPEAKER P-FRONT(R/L). ASSY SPEAKER P-FRONT Cable • ASSY SPEAKER P-FRONT Cable ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L) ASSY SPEAKER P-FRONT(R/L)
Page 13 Disassembly and Reassemble Description & Screws Picture Description Remove the ASSY PCB MAIN BOARD. • Locking • Bottom chassis Guide Fixing Hole Locking Locking Locking Locking Locking Locking Locking Locking Locking Locking Locking • Gently lift up (Bottom Right corner) to release the Locking.
Page 14 Disassembly and Reassemble Description & Screws Picture Description Remove the DC VSS-PD BOARD. • Locking • Bottom chassis Guide Fixing Hole Locking Remove the Screws. • 1 EA Screws 6003-001439 SCREW-TAPTYPE : M4 x L8, ZPC(WHT) • SMPS+B/C Locking • Gently lift up (Bottom Right corner) to Gently lift up (Bottom Right corner) to Gently lift up (Bottom Right corner) to...
Page 15 Disassembly and Reassemble Description & Screws Picture Description Completed disassembly. • Panel NOTE Reassembly procedures are in the reverse order of disassembly procedures. Reassembly procedures are in the reverse order of disassembly procedures. Reassembly procedures are in the reverse order of disassembly procedures. Reassembly procedures are in the reverse order of disassembly procedures.
Page 16 Disassembly and Reassemble  40/43/49 inches Description & Screws Picture Description Place TV face down on cushioned table. Remove the screws from the ASSY STAND P-GUIDE. • 4 EA Screws 6003-001899 SCREW-TAPTYPE : M4 x L14, ZPC(BLK) SCREW-TAPTYPE : M4 x L14, ZPC(BLK) SCREW-TAPTYPE : M4 x L14, ZPC(BLK) SCREW-TAPTYPE : M4 x L14, ZPC(BLK) SCREW-TAPTYPE : M4 x L14, ZPC(BLK)
Page 17 Disassembly and Reassemble Description & Screws Picture Description LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable LEAD CONNECTOR-POWER Cable...
Page 18 Disassembly and Reassemble Description & Screws Picture Description LEAD CONNECTOR-SUB ASSY Remove the ASSY BOARD P-FUNCTION ONE KEY. • LEAD CONNECTOR-SUB ASSY (ASSY BOARD P-FUNCTION ONE KEY) ASSY BOARD P-FUNCTION ONE KEY ASSY BOARD P-FUNCTION ONE KEY ASSY BOARD P-FUNCTION ONE KEY ASSY BOARD P-FUNCTION ONE KEY ASSY BOARD P-FUNCTION ONE KEY ASSY BOARD P-FUNCTION ONE KEY...
Page 19 Disassembly and Reassemble Description & Screws Picture Description • Use both hands to hold the board and slide Up to release the board. Remove the DC VSS-PD BOARD. • Locking • Bottom chassis Guide Fixing Hole Locking Locking Locking Locking Locking Locking Locking...
Page 20 Disassembly and Reassemble Description & Screws Picture Description Completed disassembly. • 40" • 43" • 49" NOTE Reassembly procedures are in the reverse order of disassembly procedures. Reassembly procedures are in the reverse order of disassembly procedures. Reassembly procedures are in the reverse order of disassembly procedures. Reassembly procedures are in the reverse order of disassembly procedures.
Page 21: 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. • Remote Button Info - Factory Factory Remote (AA81-00243B) First Screen Appearing in Factory Mode Important Screen info: T-NKLAKUC-XXXX.XX...
Page 22 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. When replacing Main Board, certain values needs to be manually input in Factory menu to complete the replacement.
Page 23 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 Updates...
Page 24 Troubleshooting ④ Front Color :Check Label Rating of the TV Home Updates Exit Factory Reset Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type Type...
Page 25 Troubleshooting ⑤ Model code :Check Label Rating of the TV Home Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Updates Exit Factory Reset Factory Reset Factory Reset...
Page 26 Troubleshooting ■ SVC - S/N - Writing S/N <Writing S/N : Check Label Rating of the TV > <Writing S/N : Check Label Rating of the TV > <Writing S/N : Check Label Rating of the TV > <Writing S/N : Check Label Rating of the TV > <Writing S/N : Check Label Rating of the TV >...

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Samsung HG NJ470 Series Repair Manual

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