Sony KDL-40S4100 | no image, no sound, just green "on" light - AVS Forum
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post #1 of 1 Old 08-27-2010, 08:26 AM - Thread Starter
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Last post on any KDL-40S4100 string is more than 1.5 years ago: goes to show this Sony flat-panel is pretty old.

I'm new to this board. Got here through a search for the backlight inverter board for the Sony KDL-40S4100.

Please let me know if you can provide some assistance with this.

I've had this TV for 2 years. This morning, while it was turned on, there was a slight buzzing noise that lasted about 5 minutes. And then it stopped. We turned the TV off shortly after. The next time we turned it on, the green power light came on (with the click noise), but there is no picture, no sound. Nothing.

From other forums, it seems like it is either backlight inverter or t-con board. But, how do I know for sure? How can I diagnose this problem correctly and therefore buy the correct parts?

Any help would be greatly appreciated. I'm looking forward to working on this myself (and not have to pay the repair shop), and would gladly do a tutorial while I make my own repair.

Thanks!
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