Hello everyone, I'm trying to troubleshoot this LG hometheater player.
The customer forced her USB drive reversed into it's USB socket and since then the player won't work properly, only shows "Please wait" error forever on it's display.
Now I started diagnosing the USB socket and the mainboard where it's connected.
I found 20ohm resistance to ground on the 5V line of the USB.
5V is missing and I found the buck converter of the USB line, TPS65252 IC.
After measuring the pins I realized that both VIN and 3V3 is correctly present...
Comment