Question about Samsung LN40A530 40 in. LCD TV

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Samsung LN40A530P1F LCD TV keeps blowing main power fuse when i turn set on it blows right away i have replaced fuse many times. Also when back was off i noticed a arcing as fuse blows at a component just in back of power cord plugin on main board that is not a cap. anyone know whats up ?

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Http://www.samsung.com/us/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=&prd_mdl_cd=&prd_mdl_name=LN40A530P1F
If a fuse blows like that there is a major problem, inside. I suspect that what your are seeing is the inrush thermistor, and they exhibit this under great load. I would explect that this fault maybe in the actual PSU. Due to the lack of service manual support, i would get a quote for repair from an authorised service center.

Posted on Jun 22, 2010

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Good day. your power supply is defective. maybe the regulator is shorted. you need a qualified technician to fix your problem.

Posted on Jun 22, 2010

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