samsung PN50C450B1DXZA

[ijchan223]

Hi , i am working on a PN50C450B1DXZA when i hit the power button the screen flickers once but doesn't come on. The power supply will stop delivering power to the logic board after a few seconds, if i don't short the pins to turn the tcon board on. The tcon board and the y buffer board has been replaced from supposedly working parts. The next board on my list would be the x and y sus boards, would either of those boards cause the psu to turn off , like a disconnected tcon board?

Also how do i know if the panel is shorted out ?

[munirutech]

Re: samsung PN50C450B1DXZA

yes if there is a shorted component on any of it,so disconnect both and see if your powers will flow

[munirutech]

Re: samsung PN50C450B1DXZA

x and y

[ijchan223]

Re: samsung PN50C450B1DXZA

i replaced both the x and y the panel and got magic smoke from around the y driver , i don't see any obviously blown component however i smell it . i am going to guess it is a shorted panel.