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MODEL: 32WLT66(S) May work for other models, untested.
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FAULT: Completely dead, no power LED
Powers up when cold or only occasionally
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DIAGNOSIS: Check for good 18V and 40V (measures 48V)
Check 2.5V DDR regulator on SCALER/HDMI board
If DDR power is too low, then this is the fault
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FIX: Replace 2.5V Buck or substitute your own exteral LM317T type.
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