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The model UA40F5500AM is a 40-inch smart television produced by Samsung.

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Backlight on , no display or sound

Hi guys i have a samsung ua40d6000sr, my backlight comes on but keep going on and off, when i disconnect the main board ribbon it stays on. I know nothing about voltages or testing. any ideas what i should look at, the capacitors seem fine on psu board

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?? your symptoms might indicate the problem is in the main board or tuner, but you can’t rule out the PSU.

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Ashleer Singh crwdns2934231:0crwdne2934231:0
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