hi
i have a Toshiba 46ZV555DB lcd set powers up and i can see the backlight lights the whole screen up ok.
fault is that the backlights are on but theres no picture or osd or anythink just backlight when you switch lcd on.
after some further investigation i managed to get a picture on set, from trying blind with remote to switch av channels i managed to get picture to come on when tv is on normal tv av tv channels.
however soon as you switch av channels to hdmi, or scart / component av the lcd reverts back to just blank screen with backlight on, so this points to a problem someware.
i have also noticed when the picture is on in the middle of screen theres thin black lines showing across middle of the screen and also there seems to be a mirror image showing at at bottom, i have attached a picture showing fault.
the one thing that sill baffles me is that you get a full tv picture on the lcd ( but mirror image at bottom & black lines in middle of lcd) but you can still see normal tv ok when you switch av to normal tv channels but blank when either on av1 /2 /component/hdmi.
also blank when freeview is pressed ( but shows freeview on 2nd tv connected to scart on lcd)
was suggested t-con board but surely if the t-con was gone then it would not get any sort of full tv picture on normal tv channels ?
as you can see from picture below theres thin black lines in middle of screen ( sometimes alot less lines) and theres a mirror image of picture at bottom of screen. so the t-con is recieving a signal on normal tv?
might be wrong, just trying to rule out possibilitys.
can anyone help.
thankyou
i have a Toshiba 46ZV555DB lcd set powers up and i can see the backlight lights the whole screen up ok.
fault is that the backlights are on but theres no picture or osd or anythink just backlight when you switch lcd on.
after some further investigation i managed to get a picture on set, from trying blind with remote to switch av channels i managed to get picture to come on when tv is on normal tv av tv channels.
however soon as you switch av channels to hdmi, or scart / component av the lcd reverts back to just blank screen with backlight on, so this points to a problem someware.
i have also noticed when the picture is on in the middle of screen theres thin black lines showing across middle of the screen and also there seems to be a mirror image showing at at bottom, i have attached a picture showing fault.
the one thing that sill baffles me is that you get a full tv picture on the lcd ( but mirror image at bottom & black lines in middle of lcd) but you can still see normal tv ok when you switch av to normal tv channels but blank when either on av1 /2 /component/hdmi.
also blank when freeview is pressed ( but shows freeview on 2nd tv connected to scart on lcd)
was suggested t-con board but surely if the t-con was gone then it would not get any sort of full tv picture on normal tv channels ?
as you can see from picture below theres thin black lines in middle of screen ( sometimes alot less lines) and theres a mirror image of picture at bottom of screen. so the t-con is recieving a signal on normal tv?
might be wrong, just trying to rule out possibilitys.
can anyone help.
thankyou
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