sharp LC-60LE644U main board problem.

[sputnikoff]

I have had a number of LC-60LE644U with main board problems.The set sometime turns on and other times just back lights.I haven't troubleshooted the module as the replacement is 62$ so was more economic to swap out.Seems like main processor is issue.Has anyone had in depth experience with this particular model?

[shelby5041]

Re: sharp LC-60LE644U main board problem.

hi
did u fix issue?
i have same model tv
tv sometimes powers on ok but sometimes when powered on the screen flickers and does some funky distortions and then image kicks on ok but then after about 15 min the image fades away and then no image and backlight stays on..it seems the lcd panel is powering off...and the power indicator light stays on fine

during this time i can hear a buzzing sound (faulty component such as capacitor or transormer)) coming from back of tv..

i have no taken apart yet

my initial guess is power supply or tcon but with these newer tvs it can be anyhting...

[shelby5041]

Re: sharp LC-60LE644U main board problem.

update..took tv apart today....as i figured it was not main board issue

it was bad capacitor on power supply as i thought

replaced 470uf cap..tv fixed