Check the various cable connections first.
• Check to see if there is a burnt or damaged cable.
• Check to see if there is a disconnected or loose cable connection.
• Check to see if the cables are connected according to the connection diagram.
Check the power input to the Main Board.
Check the Power input to the FRC(Frame Rate Conversion) Board.
Check internal pattern of FBE3 if there is some picture noise.
FBE3: Factory mode(Info - Menu - Mute - Power on) → 4. Advanced Menu → Option Block → FBE3 → Patt-Sel →
Press right button of Remocon.
FBE3 NG: change the main board.