Sharp Aquos LC-60LE blank white screen only

[voltron88x]

Hey guys, have a Sharp Aquos Quattron LC-60LE832U that powers on fine, but only displays a blank white screen (no blinking front panel light). I can hit the menu/input buttons and the screen brightness undulates brighter or darker (looks like it's trying to do something), but nothing actually displays. There are some static horizontal lines present as well. Other symptom includes a slowly blinking D3303 led on the main board (DKEYMF733FM01S).

I've searched around but can't really find anything specific to this. I've been checking out this thread, but again symptoms are a bit different.

Any thoughts? Thanks!

("swirls" on tv picture are from camera)

[budm]

Re: Sharp Aquos LC-60LE blank white screen only

Quick test, try having on flat ribbon cable between the LCD panel and the T-CON connected one at a time to see what you get.

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

Yes I tried that and it just splits the screen in half...though one half is just white with no horizontal lines - the other half with the lines.

Quick test, try having on flat ribbon cable between the LCD panel and the T-CON connected one at a time to see what you get.

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

This is what it looks like with only one ribbon cable connected.

[CapLeaker]

Re: Sharp Aquos LC-60LE blank white screen only

what happens if you connect the one you disconnected and disconnect the other one?

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

what happens if you connect the one you disconnected and disconnect the other one?

Same, just alternated.

[CapLeaker]

Re: Sharp Aquos LC-60LE blank white screen only

Can you get your hands on to an oscilloscope?

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

Can you get your hands on to an oscilloscope?

Possibly. What would be the plan?

[CapLeaker]

Re: Sharp Aquos LC-60LE blank white screen only

get it and check the LVDS signal coming out of the main board. Turn the menu on and off all the time and signal should change on the oscilloscope. That makes sure you have video coming out of the main board and you know 100% you got a T-Con problem. You also can check the T-Con output the same way.

[CapLeaker]

Re: Sharp Aquos LC-60LE blank white screen only

A second thought: since you get a heartbeat (slow blinking LED on the main board), the video output should be working on the main board.

[Andrew F. Ali]

Re: Sharp Aquos LC-60LE blank white screen only

Bad T-Con Board is my guess....

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

Replaced the T-Con board and partial success!

Getting an odd vertical line issue on one side now...any thoughts?

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

Better pictures. Looks like it's the left-inner 25%

[CapLeaker]

Re: Sharp Aquos LC-60LE blank white screen only

defective tab

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

defective tab

Thanks. I suppose you're referring to the ribbon cable connectors?

[voltron88x]

Re: Sharp Aquos LC-60LE blank white screen only

Ah nevermind, figured out what you meant.