Question about Samsung LE40R73BD 40 in. HD-Ready LCD Television
The power supply will sense if the set is 'drawing' too much current and switch itself off. This could be the case here. The power supply board may eventually go completely bad.
Posted on Feb 23, 2009
its the elecrolytic capaitors on the power supply.
it shows how to fix it yourself for only 'peanuts'
Posted on Aug 05, 2009
There are 3 capacitors in power supply board, all 1000uF10v.
2 for 5vdc and 1 for 12vdc. replace with best quality 1000uF 25V cap.
do it yourself repair will save you $300
Posted on Nov 16, 2009
hi i have replaced power controls boards in more than a few of these & this needs to b done by a expert .
Posted on Apr 11, 2010
Testimonial: "I figured it would be something along that line-Here in AK, repairs can be costly-but I'll get a pro. Thanks!"
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