Bn4400513a Samsung power board

[Jaysplace7]

Hi all I'm new to this I have a pn60e6500 Samsung tv about a year ago the power board failed so I found one online I ordered it and installed price was not too bad i installed it and was all good until today I opened it up and same spot was burnt the plastic piece screwed to aluminium bar ( correct me if my terms ar incorrect but I believe shotky diode attached to heat sink ) has one lead melted off and on the reverse side of the board there is a chip ( again correct me if I'm wrong a ic ) the location is labeled ds808 my question is you can get a kit to replace all but that ic chip how do I get my hands on one and is there any issues I should think about with trying to replace I'm not about to spend another 400 dollars to replace board and I would like to try and fix myself electronics repair interests me any help would be great thanks to all Jay

[Jaysplace7]

Re: Bn4400513a Samsung power board

[Dayshunter]

Re: Bn4400513a Samsung power board

Hi did you manage to fix the issue with this supply board? I have the same tv (EU model) that has PSU problem, tried repairing it twice in repair shop but after 10 days or so the board shorts out.

[Longbow]

Re: Bn4400513a Samsung power board

Obvioulsy, the problem is not on the power supply board, but on another board which is drawing too much current. Schematic.

[Jaysplace7]

Re: Bn4400513a Samsung power board

I have not repaired yet I have been to busy was just looking for parts and found my question and your questions would be great if anyone had any input on it

[ReeceyBurger123]

Re: Bn4400513a Samsung power board

Bad solder joints blows switching transistor and controller, might be best to replace the psu again and resolder ALL devices mounted on a heatsink for reliability.