Look for cold solder joints in the power supply section first, especially around 24vdc supply section which is needed by the backlight inverter board to work, check the voltage when you lost the picture, if the 24vdc is still there, then the problem will be at the backlight inverter board. If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: Please see my basic troubleshooting guide here: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://s807.photobucket.com/home/budm/allalbums http://en.wikipedia.org/wiki/Capacitor_plague
The 2 long boards call the LCD inverter board,that the problems.These 2 long inverter board help the LCD screen to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 long LCD inverter boards for the replacement.
Answers & Comments
Look for cold solder joints in the power supply section first, especially around 24vdc supply section which is needed by the backlight inverter board to work, check the voltage when you lost the picture, if the 24vdc is still there, then the problem will be at the backlight inverter board.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
The 2 long boards call the LCD inverter board,that the problems.These 2 long inverter board help the LCD screen to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 long LCD inverter boards for the replacement.