Good morning, I am new registered my name is Luigi and I am pleased to be part of this forum.
I have in my hands I have a Samsung TV Mod. UE46F8500SZXZT that does not turn on.
When you give the power command, the internal relay activates for about a second and then returns to the open position, then OFF.
In fact, the power supply (5V) of the standby is there, when you turn it on with the remote control, for a moment the voltages come out, the LEDs on the T-CON light up for a moment.
I reviewed the welds on the most crucial points of the power supply (BN44-00635B), I also tried to heat and cool the most sensitive parts without positive results.
In the end I replaced all the capacitors, the small ones to understand, that are located around the power supply drive circuit without obtaining a result.
I tried to look for the TV scheme and the power supply but nothing is found.
Can anyone enlighten me on this?
Thank you
Hello, does anyone have any other suggestions for this repair? Thank you.
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Welcome,
Check the main boards for shorts. There is some DC-DC converter with balck round inductor. Measure resistance the inductror VS ground. 8-10 ohm acceptable.
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Done, 10 ohms
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Hi and welcome her,
I lodaded up some U85A-chasses doc -hopfely it helps for you..
Kari
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Thanks, but the suggested scheme does not match my TV model
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