Hi I have an older samsung led tv. I am having trouble with the screen being dark. I have replaced the t-con and power supply board but there are still areas on the screen that are darker than others. Before this the screen was completely dark and the only way to see the picture was with a flashlight. Could the LED strips be going bad as well? The model is UN46H5203AFXZA
Please replace all of the LED back lights strips.
SOURCE: screen on tv went dark everthing works but screen is darker led seiki 322fs
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should be troubles hooted. Contact any service technician. The circuit will differ with models and versions.
Type in the brand name of your device, in the search box [at the top right] of the display window, and press enter to get all related posts. It will make surf easy.
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Hi,
Hisense TV's usually use PCB Boards by Vestel and not Hisense themselves, have a look at: Vestel Help If the Boards in your Hisense match this Board/Part Number format at least you'll know what to search for, replacing the power supply will not help unless the process has been incorporated into the power supply and that is not known for certain yet
Good Hunting
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Do flashlight test to see if y0ou can see an image - if so replace the inverter board that powers backlights. If no image then go for the main board.
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