Element 50" LED ELEFW504 with white screen.

[Lmterickg]

I recently saved the landfill from another salvageable flat screen and it has completely white screen. Already took off the back panel to inspect the power board and T Con boards. No visible capacitor damage and I cleaned all connections with IP alcohol and reconnected. Still no change and I can't locate the surface mount fuse on the T Con board to check it. Any ideas of what to look for would be greatly appreciated. I ordered a full replacement kit with power board and T Con board in the mean time.

[dick_barton]

Re: Element 50" LED ELEFW504 with white screen.

Fuse on Tcon

[budm]

Re: Element 50" LED ELEFW504 with white screen.

The way the screen look I think the fuse is OK, if it is, then try having one ribbon cable between the LCD panel and the T-CON board connected one at a time to see if you will get image on half of the screen or not.

[Lmterickg]

Re: Element 50" LED ELEFW504 with white screen.

Well, when I was taking the TV apart I discovered what that crunching sound was when I was putting the stand back on. Apparently the screws that secure the stand attach to the metal panel that covers the T conn board and those screws are just long enough to barely miss the board. Well, I am glad that I ordered a new T conn board because I ruined it. Good news is that I am getting sound and when I detached the T conn from the screen, half the picture went off. Funny it was the opposite side that went off then I assumed would would turn off. Thanks for the help locating the fuse though.

[Lmterickg]

Re: Element 50" LED ELEFW504 with white screen.

Well after ordering and installing the complete TV repair kit from shopJimmy.com which includes the T conn and power board, I am getting a blank screen after installation. The menu and source list is not showing up. The backlights are working but I am getting no images. Tried the flashlight test to see if images show up with the light and nothing. Any ideas on what steps to take next? I am still getting sound and it does seem to auto select the source coming in when I plug my computer into HDMI 1. The screen isn't white anymore so I guess that's one less thing as Forest would say.

[CapLeaker]

Re: Element 50" LED ELEFW504 with white screen.

probe the LVDS with an oscilloscope while turning the OSD menu on and off all the time. This will verify if the mainboard is putting out video first place.

[cliff_hootarski]

Re: Element 50" LED ELEFW504 with white screen.

Do what budm suggests in post #3. This will help determine if it's a bad panel or not.

[ReeceyBurger123]

Re: Element 50" LED ELEFW504 with white screen.

do what budm suggests in post #3. This will help determine if it's a bad panel or not.

+1

[Lmterickg]

Re: Element 50" LED ELEFW504 with white screen.

Ok so I disconnected one ribbon of the T conn at a time and no change to screen. The backlights are on and still blank screen with no images. I was confused as to how I go from a white screen to black screen so I hooked up the old T-Con board and disconnected one ribbon at a time and one side goes dark while the other maintains the white screen somewhat. This happened with both ribbons. Attached are pictures of the ribbon removal test of the old T-Con board. I also noticed that the T-Con boards are different in some ways. I attached pictures of them as well. The old T-Con is connected and below the new one I purchased in the kit. Thanks again for any help.

[Lmterickg]

Re: Element 50" LED ELEFW504 with white screen.

Well turns out I ordered the wrong kit for my TV. Correcting this error now and ordered right part. I would still like confirmation that my panel is fine based on the diagnostic test results of one half the screen going dark