Led light flickering three times
Led flickering 3 times
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A 3 blink error code indicates a Main 5.0V failure on the B board or a Audio amp. protection error on the B Board or speakers
Here's the service manual for the TV that may help. See p.11 for the blink error codes and p.15 for the location of the B (BMX) board.
See p.36 for the NO Power (DC/DC converter check flowchart.
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@muthurajan16573 what is the exact model for your TV? What have you checked?
by oldturkey03