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samsung ue40f8000sz

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downunder:

That's too bad, Al. The BN44-00622 has a known issue but I've not seen it on other PSUs.

If yours still plays up with the main disconnected then it's either the PSU or duff LEDs as Chris suggests.

To be sure you'd have to remove the display panel and diffuser sheets and see if any LEDs are going out.

You can run the set without the screen and the LEDs will work normally - if they're OK.                                 Bruce

call me al:
thanks for all the info will take apart tomorrow and will report back :c017:

call me al:
Took screen apart its edge lit leds looks ok so  put it back together.The fault is on the power board its clicking even when powered on its own.Have not found where the problem is Still head scratching  :03:

michael first:
Hi a happy New Year to all,try to remove  QQ856(2N700K,smd MOSFET) which puts to GND the line PS_ON_S as a protection.

downunder:

That's an interesting tip, Michael. I once spent ages trying to locate such a device, seeing as the PSU is held up with the Main disconnected.

Bruce

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