السلام عليكم
جرب هذه الطريقة
1-1 Go to the function set menu (there are two ways
a. Press VOL+ key and VOL- key on the control board at the same time and switch on power switch, then
go to the function set menu.
b. After TV is on, press "factory" key (See Note 1) twin,then go to the function set menu.
1-2 Press 'PM' key and 'SM' key on the control board at the same time until the “INITIAL PART OK ” apears,
this means the memory having been partially initialized. Operate repeatedly if the picture has no change.