Samsung UN65C800XF No Power

[gamethriller]

So I opened up this TV and pulled the powerboard to find this....Check photos would this cause no lights or power..

[dick_barton]

Re: Samsung UN65C800XF No Power

Yes, the circled device (diode) is well and truly blown and needs to be replaced.
The question now is why did it blow?

I would also check out the two 20N60C3 mosfets which are along side for short circuits.

[gamethriller]

Re: Samsung UN65C800XF No Power

OK do you know where to purchase? I can solder great dunno where to order from....

[CapLeaker]

Re: Samsung UN65C800XF No Power

The cracked diode is a Schottky diode, 600V and 6A. Look at Mouser, Digikey, Allied, Ali, etc.

[gamethriller]

Re: Samsung UN65C800XF No Power

The cracked diode is a Schottky diode, 600V and 6A. Look at Mouser, Digikey, Allied, Ali, etc.

Thank You

[gamethriller]

Re: Samsung UN65C800XF No Power

The cracked diode is a Schottky diode, 600V and 6A. Look at Mouser, Digikey, Allied, Ali, etc.

So the part is replaced. Still nothing I would replace the board but I'm having a lot of problems finding it.

[budm]

Re: Samsung UN65C800XF No Power

That is the PFC Booster diode, so do you have 160VDC between the two legs of the main filter cap?
Do you have standby Voltage?