A le-24g90 tv sometimes display ok sometimes black, tested capacitors are ok, when black front panel seems to work fine
Hi, I have a led tv set, name is ONN , model: le-24g90 but I think it's a seiki , the problem is that sometimes it's fine and display right , but sometime it become black no display. when I use the front panel to control it semms to be ok , I can get him off, and when i input an audio source it plays ok and volume buttons are ok. I opened it and see the capacitors on the power unit hey are just fine. Tested also to remove and reset all the cables. but it keeps sometimes it's fine and sometimes it's all black . any idea? Thank you
Televison & Video - Seiki
Answers & Comments
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/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
the problem is that it function some times good and other times no, the power supply is MP113TH-36http://www.shopjimmy.com/megmeet-mp113th... so if it get function normal , how the backlight is out?"