Why did my TV lose all sound?

Samsung HL-S5687W has no sound. Tried hooking up an external amplifier and speakers, nothing. Turn up volume to 100 %, nothing. Tried resetting TV and all sound menu adjustments, nothing. Is main board fried?

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Hi @mastertech53 ,

Have you tried different inputs at all to see if it occurs on all or only on one type of input?

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