HISENSE H55B7500UK has backlight no picture

[Diah]

Re: HISENSE H55B7500UK has backlight no picture

I know that but i want to know the reason how my tv happen like that and can learn more about it.

when your screen displaying image for you.... then you will know why MB get issue.... let pray your screen working

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

then from 2 make one working LOL

I know that but i want to know the reason how my tv happen like that and can learn more about it.

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

Hmmm, then seems like the tcon isn't the problem.

I bought the cracked screen hisense tv only £15^^
It s really good price for parts

[Diah]

Re: HISENSE H55B7500UK has backlight no picture

then from 2 make one working LOL

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

which model and size the cracked one?

H55A6250UK, same size

[Diah]

Re: HISENSE H55B7500UK has backlight no picture

My t con board s still in working condition. When i test it with the cracked screen tv, i can see pictures change during i press menu button on remote control.

which model and size the cracked one?

[nomoresonys]

Re: HISENSE H55B7500UK has backlight no picture

Hmmm, then seems like the tcon isn't the problem.

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

hisense when screen crack it still show some kind of image.. you said t-con are same... then test yours on this cracked screen set.... MB can some how if the VDC pin out same can be used too for testing

My t con board s still in working condition. When i test it with the cracked screen tv, i can see pictures change during i press menu button on remote control.

[Diah]

Re: HISENSE H55B7500UK has backlight no picture

I m having 1 more cracked screen hisense tv(diffirent model but uses the same t con board). I tried to replace the t con board but nothing changed.

hisense when screen crack it still show some kind of image.. you said t-con are same... then test yours on this cracked screen set.... MB can some how if the VDC pin out same can be used too for testing

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

I just took a quick look, so if you get one make sure it's compatible.

I m having 1 more cracked screen hisense tv(diffirent model but uses the same t con board). I tried to replace the t con board but nothing changed.

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

do it again with half screen each time...by disconnect the ribbon , LVDS must be disconnected... if same result then i suggest as my Post #49

Yes i tried disconnecting one by one but it s helpless.
I already took another t con board from a cracked screen hisense tv to replace mine but the screen s still has nothing and the led light keep flashing 6 times.
@@

[nomoresonys]

Re: HISENSE H55B7500UK has backlight no picture

I just took a quick look, so if you get one make sure it's compatible.

[nomoresonys]

Re: HISENSE H55B7500UK has backlight no picture

https://www.ebay.co.uk/sch/i.html?_f...acat=0&_sop=15

[nomoresonys]

Re: HISENSE H55B7500UK has backlight no picture

Saw some tcons on ebay UK for 20 pounds, probably try matching up the numbers on the white barcode, also seems like these guys claim they will price match: https://www.tvparts.co.uk/lcd-tv-spa...7500uk-a190421

[Diah]

Re: HISENSE H55B7500UK has backlight no picture

I already jumped 12v to the fuse on the t con board and wait for a minute but still got nothing@@

do it again with half screen each time...by disconnect the ribbon , LVDS must be disconnected... if same result then i suggest as my Post #49

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

Snow, diah has had me do this test on this type of TV also. Jump the 12v to fuse on tcon with lvds disc from MB . When I did it though I had to wait like 10-14 seconds before anything showed. ALSO I hooked up a backlight tester (assuming your backlights turn on during this test you won't have to) if lights don't turn on you better hit screen with a flashlight during test. My screen cycled green/red/colors BUT I had no backlight so I had to light it up. This info may or may not help but gl

I already jumped 12v to the fuse on the t con board and wait for a minute but still got nothing@@

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

Ok i will do the test again and wait a little bit longer. Maybe the screen will show color patterns ^^

[EazyBone]

Re: HISENSE H55B7500UK has backlight no picture

Snow, diah has had me do this test on this type of TV also. Jump the 12v to fuse on tcon with lvds disc from MB . When I did it though I had to wait like 10-14 seconds before anything showed. ALSO I hooked up a backlight tester (assuming your backlights turn on during this test you won't have to) if lights don't turn on you better hit screen with a flashlight during test. My screen cycled green/red/colors BUT I had no backlight so I had to light it up. This info may or may not help but gl

[Diah]

Re: HISENSE H55B7500UK has backlight no picture

because you did test it before ... disconnect the lvds cable from it,,, and feed the fuse of it 12v from power boards,,, but you don't have any sign or color pattern on panel


you can do the test again .. for several time... hope it come out and give sign

[snowangel27]

Re: HISENSE H55B7500UK has backlight no picture

invest to replace t-con

Can you explain more detail why the t con board need to be replaced, please?