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Repair documentation and service information for Hisense televisions.

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Backlights are working but screen is black...any ideas?

Hisense 65R7050e1

My tv originally was blinking on the Hisense screen. I troubleshooted from replacing the boards to just now replacing the backlights. Now the back lights are all working and the screen is black. I can hear audio (just general click noises) when turning up the volume on the remote..and a slight power up and down audio noise (that Ive never heard before) when I push the power button. So no Hisense screen...just black. Any ideas? Thank you

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Hi, so complete story. Tv started blinking on from the introductory Hisense screen to black. The left part of the screen was darker than the rest. I did some research, and was told it was the main board (Hisense 259415 243905 Main Board 65R7050E1) . Ordered it from Shop Jimmy. It came, I tried it. Same problem. Returned it and ordered the power supply board (Hisense 242585 Power Supply for 65H6570F also compatible with my 65R7050E1) It came, swapped it. Didnt work, same Blinking issue. Returned the board. Was told on a message board that it was the Back Lights, a frequent problem with this Tv....and apparently so because shop Jimmy was out. Waited a couple weeks and ordered when they were in stock. Replaced Back lights. Put Tv back together, and lights come on in full force but TV is black. Checked connections, pulled Tv apart, checked LED strip connections. All backlights work, screen is black. There is one last board that I havent swapped out... Tcon board. All the ribbon strips are intact. TY

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@iglooozzz you did not tell us which boards you have replaced. If it was all boards and you are sure that you now have a backlight, the only thing left then is the display. It is possible that a Tape-off might get your TV to function again. Tell us more about which boards you replaced and why. It is also imperative that the boards you did replace are compatible with the original Boards

Update (11/11/23)

@iglooozzz the initial issue was definitely the backlight stripos. Sorry you had to spend your money on replacement boards that were not needed. The current issue can most certainly be a failed T-con board. At this time, I suggest you replace that as well. OF course you can also try and check it out before replacing. There are some common voltages that your T-con board will have to have for it to even come on. IF you post some good pictures of it with your Question, we can try and find the test points for those voltages on your T-con board.

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