tv lg 32ld750 lcd firmware 04-00-00 restarting continuously problems – update 2

I forgot to get back with more info.
The problem seems to be with the cable that enter in the back of TV for power supply.
If the cable it’s on a good position it does not restarting, i did not make a visit at LG customer support, as the warranty did expired, and the TV it’s fine 🙂 .