SAMSUNG TV TU7000 WON T TURN ON RED LIGHT BLINKING General Troubleshooting
| CONF | DIAGNOSIS | PART MATCH | ACTION |
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86%
CONF
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Main PCB Assembly
The Main Board on the TU7000 series contains the system-on-chip and integrated T-Con circuitry. A blinking red light signifies a Power-On Self-Test (POST) failure, often caused by a corrupted EEPROM or a shorted component on the logic rail that prevents the TV from completing the boot sequence.
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CHECK PRICE |
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9%
CONF
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Power Supply Unit (PSU)
The PSU may fail to provide the sustained secondary voltage required to initialize the backlights and main logic. If the capacitors or MOSFETs on the board have degraded, the power rail will sag upon load, triggering the protection circuit and resulting in the blinking standby light.
SKU: BN44-01054A
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CHECK PRICE |
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5%
CONF
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LED Backlight Strip Set
A shorted LED diode within the backlight array can cause the constant-current driver to detect an over-current or under-current condition. This triggers an immediate shutdown of the power rails to prevent fire hazards, which the system communicates via the blinking red status LED.
SKU: BN96-50319A
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CHECK PRICE |
DIY Repair Guide
Watch exactly how to replace the Main PCB Assembly.