SAMSUNG TU8000 SERIES Boot Loop Restarting

LCD Panel Assembly

The root failure is a dielectric breakdown within the Thin Film Transistor (TFT) layers of the LCD glass. This creates a low-impedance short circuit that pulls down the main power rails during the initialization sequence. Replacing the entire panel assembly is the only definitive mechanical resolution for this internal manufacturing defect.

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Main Logic Board

The Main Board hosts the Timing Controller (T-CON) logic which monitors panel feedback. While the board is often functional, it is the component that executes the 'restart' command after failing the Power-On Self-Test (POST) due to the panel short. It is replaced only if the panel short has back-fed and damaged the T-CON processing section.

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Power Supply Unit (PSU)

The PSU performs as designed by cycling power when it detects an abnormal load. In rare instances, the secondary-side filtering capacitors or the Power Factor Correction (PFC) IC may fail, leading to unstable DC output that mimics a boot loop under the high-current draw of the backlight startup.

SKU: BN44-01054A

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