On my Hisense 50K23DG LED TV, I have sound but no picture.
First, in a dark room, I looked for light while TV was on. NONE. So no backlights. I did the flashlight test.... I see the picture on the TV. So that tells me that the T-Con board and main Board are both fine and the the issue is either the Inverter or LED Driver Board. My problem is that I can not locate either for this TV. I THINK the inverter is built in with the power supply... I am not sure where the LED Driver board is or if this TV has one or what. Should I replace the Power Supply Board?
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Re: On my Hisense 50K23DG LED TV, I have sound but no...
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
Nov 20, 2013 - Uploaded by After Hours Tv & Pc repair
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Back light problem. Check and replace the damaged components at its back light inverter circuit. http://electronicshelponline.blogspot.com/ Visit the site linked here to know more details. With some models the back light inverter circuit will be an integral part at its power supply circuit. If so the power supply regulator board might need replacement.
Hi, The part number for this inverter is: 167210, RSAG7.820.5463, it will be printed on the board somewhere perhaps on a sticky label, have a good search around all the boards if you are unfamiliar with the set. If its any help start with the smaller Boards first, the largest will be Main AV and the Power Supply
This is either the backlight or the backlight power supply that has failed. The unit is LED and those units push the LED lights to the maximum limit for brightness and the lights fail.. It is not as simple as changing a lightbulb though. The LED lights come in a strip and have to be ordered. They are soldered and glued or taped in place.