Samsung LN40A550P3R - Troubleshooting Common Issues; General Troubleshooting Steps

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4. Troubleshooting
4. Troubleshooting
4-1. Troubleshooting
Check the various cable connections rst.
• 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 internal Pattern FBE3 if there is some picture noise.
FBE3: Factory mode(mute 1 - 8 - 2 power on)-> FBE3-> Pattern sel-> Press right button of Remocon.
Case1: FBE3 NG, change the main board
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