How to repair an LG LCD TV Model 32LH20-UA
Screen is dark. With "menu" selected and flashlight on front of screen there is no image in the background. (Back light assumed OK.) There is a lighted, colored raster line along the very top of the screen just below the bezel. So, the picture seems to be there but is not getting spread out horizontally across the screen.
Televison & Video - LG
Answers & Comments
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the sites linked here. Pull up older posts.
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In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
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