Hi my name is XXXXXX. XXX may I help you?
Once the screen goes blank can you see the on screen menu if using the Sanyo remote ?
the picture comes on for a few minutes then goes black
you can hear the sound but, no picture
does the screen have a slight blue look to it or is it completly black like the Tv was off ?
complete blackness like it is off but, the sound is on
This Tv has back light lamps the are used to light the inside of the panel so the picture can be seen on the LCD screen, this can be caused by a couple things, either the back light inverter board is failing or the LCD panel is failing.
can this be fixed or should i purchase a new tv
If the back light inverter board is the problem it can be fix, there are boards that can bought from salvage sites like shopjimmy and it's not that hard to replace, If the LCD panel is bad then the cost would meet or exceed the cost of the Tv.
Would like a link to a site where you can buy the back light inverter board ?
http://www.shopjimmy.com/catalogsearch/result/?q=CLT1554 you would have to look at the one in your set first and make certain the numbers are the same but i think you will the one for your set on this page. If you have any more questions you can always come back to this post and reply.