47 in. Flat-Panel LCD HDTV

47 in. Flat-Panel LCD HDTV

My LG takes a longtime to turn on, why? - LG 47 in. Flat-Panel LCD HDTV

Posted by genejones on Jun 09, 2011

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47 in. Flat-Panel LCD HDTV

Product Troubleshooting for 47 in. Flat-Panel LCD HDTV


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Hi,You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.first of all check all the electrolytic capacitors in the power supply and back light inverter board.If available then replace these capacitors first.You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .ok
Hi,You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.first of all check all the electrolytic capacitors in the power supply and back light inverter board.If available then replace these capacitors first.You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .ok
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