SamyGO

TV was brought from Singapore to HongKong. However, it only can tune analogue TV channel but not digital TV channel. I access the service manual, Option > MRT option > Region, try to change and tune. Region was last set to JAPAN. The TV keeps on booting between black screen and Samsung Logo. What I can do to recover it? Thanks.

It might does not have digital TV tuner on board that s why it only finds analog channels. Either buy main board with proper tuner, or replace tuner, which requires proof soldering skills.