Half of the screen dark

A dim half that still shows an image is usually backlight (strips or connector). A completely black side with no image points more to the T-con or ribbon. Answers vary by model.

Single source ~90 min advancedBrands: All

Before you start

Backlight and T-con work requires opening the TV; trained techs only. Do not tape or shim ribbons as a permanent fix.

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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