I have replaced as someone advised me here on Fixya.com that i need to replace back light inverter of my HD TV. because when i turned it on it gives only SOUND not PICTURE at all. i bought back Light Inverter from ebay and replaced with old one. but still the problem is same i am receiving on sound but no PICTURE screen is black. what should i do? please help
Dim the lights in the room, turn on the set, and shine a bright flash light on the screen. Do you see a faint picture? Also be advised that there are a lot of bad parts floating around on EBay. No backlight condition could be cause by a bad main board, power supply, inverter board, high voltage short on the inverter output, or a bad backlight bulb.
SOURCE: 47inch toshiba lcd tv (HL167) black picture, but
Best to replace both at the same time . Yes they are easy if you can find the parts.
SOURCE: hdtv screen turns on but is black
Chances are its the Inverter. However since the audio doesnt work either its also possible that the main board could be the cause. As in most cases audio will still work when an inverter fails. so its about a 50% for each board when the audio doesnt work either. You can get some free assistance yo help troubleshoot which board is at fault from www.tvcircuitboards.com they should also have replacement boards for your model.
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