The problem lies in a defective electrolytic capacitor in the Power Supply Board. Its the 1000 mf 25 volt. If you look carfully you will see its bulge. just repalce it and problem solve.
Hector, muchisimas gracias... ya le cambie el capacitor y funciona perfecto.
Many thanks, this worked for me. C123 was bulged. Replaced it with a 820 uF 24V Capacitor and it worked fine. This is my second device that I fixed by replacing a badcap. How many millions of devices will have been thrown in the trash because if this industry known badcap problem?
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SOURCE: My lg rh387h dvd wont go past hello screen
It shows that the memory IC of this set is corrupted,this is pre-programmed IC that can be replaced with the same programmed IC to solve the problem.
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