Hi,

You symptoms indicate a power supply problem - the voltages not coming up to specifications for proper operation.

Unfortunately, this is a common problem with Samsung TVs - they used marginal tolerances in their power supply components - to keep costs down, along with customer satisfaction.

The most common problem in the power supplies - with the capacitors (which regulate the voltages). For an example, a capacitor rated at 1000mf, 16vdc, is under rated for the voltage, it should be the next higher voltage rating, like 25vdc.

Many service shops will replace the components on the power supply (a little more labor) with better tolerance components. Others will replace them with the power supply board - and you get the same marginally rated components - and failure again in a few years.

A power supply repair will run about $200, labor included.

A service estimate will run about $45-$75, depending on your location. The estimate charge will apply towards labor for repairs, should you decide to have it repaired.

Sorry it is not a simple fix.

Thanks,
Rod

Without actually testing the equipment myself and performing diagnostics, I can only provide you with the most probable problem from my experience, service information and likely resolution. Please only accept if you are satisfied and can provide positive feedback - feedback rates the expert and not JustAnswer.com.