SAMSUNG TV CRYSTAL UHD BLACK SCREEN SOUND WORKING General Troubleshooting
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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85%
CONF
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LED Backlight Strip Set
The Samsung Crystal UHD series frequently suffers from premature LED failure within the backlight array. Since the TV produces sound, the logic board is processing data, but the lack of image indicates the panel is not being illuminated. Replacing the full set of strips restores the light source necessary to make the LCD image visible.
SKU: BN96-50319A / BN96-50320A
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|
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10%
CONF
|
Power Supply Board (LIPS)
If the backlight strips are functional, the secondary failure point is the LED driver circuit on the Power Supply Board. A failed MOSFET or capacitor in the high-voltage section can prevent the board from sending the required current to the backlight array, resulting in a black screen.
SKU: BN44-01054A
|
|
|
5%
CONF
|
Main Logic Board
In rare cases, the Main Board fails to send the 'Backlight On' (BL_ON) signal to the power supply. While the board is functional enough to process audio, the video output stage or control signaling may be compromised, requiring a board replacement.
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DIY Repair Guide
Watch exactly how to replace the LED Backlight Strip Set.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.