Tv jvc lt-40v750 no image

[sorinede]

Helo , this tv led has :
Mainboard 17MB97 DISPLAY VES400UNDS-200-N11
Has sound ,but no image...The fuse on t-con is ok and components on it seems ok..
So i was trying some firmware with usb method from internet , but no success..so i need the good firmware for usb update.......thanks in advance..

[viktorkane]

Re: Tv jvc lt-40v750 no image

you are amateur or professional
not is problem firmware when there has sound

look dioda led switched on or not
if with a light bulb looks like a figure then the diodes are burned
or does not run out of tension fron power supply

[sorinede]

Re: Tv jvc lt-40v750 no image

thank you for answer....i am professional , that why i think is about the firmware.....Tv is working ok , from remote i can change channels and do power off and on , but no screen only baclightso i need again the right firmware for usb method update..

[budm]

Re: Tv jvc lt-40v750 no image

Can we at least see good clear pictures of the whole backside of the TV showing all the boards and also straight shot pictures of the whole board of each board?

[sorinede]

Re: Tv jvc lt-40v750 no image

Hello , here are some pictures of boards..

[ducky29]

Re: Tv jvc lt-40v750 no image

Is there backlight?

[sorinede]

Re: Tv jvc lt-40v750 no image

sorry for late responses but i am working to other tv's for resolve them........yes tv has backilght...i have update it bye usb ,with some firmware from other models with same mb =17mb97, but with no succes... Mean time i have to decide to make a interface between tv and pc (UNBUNTU ..S.O )..so i have connected a usb to ttl converter to euroscart socket , and when tv was on, on pc terminal show l a configuration of tv , but with some bad blocks ....i uplode this if someone who know better like me , where is the problem....i think the nand flash has to many bad block and must be replace....thanks again ror reading my post..