Repair Your TV Yourself
Identify the fault, check the boards and backlight, then avoid random replacements.
€9.90 Discover the ebookTV Repair Tips
Diagnose a TV fault before replacing a part
Find our guides to identify symptoms, understand possible causes, and perform initial checks before replacing a board, panel, or backlight kit.
TV no longer turns on, red light flashing, black screen with sound, sudden shutdown, boot loop, stuck on the logo, lines or half-black screen: choose the symptom that matches your TV and follow the checks in order.
Important: do not order a board or LED kit based solely on the symptom. Always check the full TV model number and the reference printed directly on the part.
Repair with a clear method
Two practical PDF guides to diagnose your TV and master the basics of electronics.
Practical Electronics
Understand the components, use a multimeter, and develop the right diagnostic habits.
€9.90 Discover the ebookAvailable TV Diagnostic Guides
Nine guides to diagnose faults and identify the right TV parts.
TV with black screen but with sound
Sound but no image? Check the LED backlight with the flashlight test.
Read the full guide →TV that turns on then off
The TV starts then shuts down? Check the backlight, power supply, and protection mode.
Read the full guide →TV with lines on the screen
Vertical, horizontal, or colored lines? Check the ribbon cables, T-Con, and panel.
Read the full guide →TV with half-black screen
Half the screen is black or frozen? Distinguish between backlight, ribbon cables, T-Con, and panel.
Read the full guide →TV that reboots in a loop
Repeated logo or endless reboots? Follow the software, power supply, and motherboard checks.
Read the full guide →TV stuck on the logo
TV frozen at startup? Test the reset, power supply, and motherboard before ordering anything.
Read the full guide →TV no longer turns on
No indicator light or any reaction? Check the outlet, standby, and power board.
Read the full guide →TV with flashing red light
Solid or flashing red light? Identify a protection mode or startup fault.
Read the full guide →Identify the LED strips of your TV
Reference, connectors, number of LEDs, and compatibility: find the right kit before ordering.
Read the full guide →Getting started with TV diagnostics
01
Observe the symptom
Note the indicator light, sound, logo, lighting, rebooting, and time before shutdown.
02
Perform simple tests
Unplug peripherals, perform an electrical reset, and the flashlight test if necessary.
03
Identify the part
Note the exact references before ordering a board, panel, or LED kit.
TV fault families
LED backlight
Black screen with sound, image visible with a flashlight, flashing or disappearing backlight.
Power board
No indicator light, impossible to start, immediate shutdown, or unstable voltages.
Motherboard
Reboots, stuck on the logo, no controls, or software malfunctions.
T-Con board or panel
Lines, doubled image, abnormal colors, or missing half of the image.
Need help identifying the fault?
Use the PiècesTV tool to analyze the symptoms and get initial leads before replacing a part.
Perform a free TV diagnosticCorrectly identify a spare part
The same TV model can receive several versions of boards, panels, or LED strips. Always note the brand, the full TV model number, the product code, and especially the reference printed directly on the part.
Useful tools for diagnosing and repairing a TV
Test and measure
Check the backlight and main voltages.
Disassemble the screen
Handle the panel more easily when replacing the LED strips.
Search for compatible LED strips
Your diagnosis confirms a backlight fault? Check our selection of kits for Samsung, LG, Philips, Sony, TCL, and many other brands.
View all TV LED stripsFollow a complete repair method
The PiècesTV premium guide covers diagnosis, board identification, electrical measurements, disassembly, and reference searching.
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PiècesTV Guides
PiècesTV has specialized in TV spare parts and diagnostics since 2011. This library now includes 9 TV diagnostic and identification guides. Updated on October 19, 2026.