Troubleshooting - Samsung UN46C6900VF Service Manual

4. Troubleshooting

4-1. Troubleshooting
1. 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.
2. Check the power input to the Main Board.
3. How to distinguish if the problem is caused by Main Board or T-Con Board.
a. In case of No Video : If the problem is No Video but BLU is on and Indication LED is blinking repeatedly,
b. Distorted Picture :
check the LVDS cable first. If the problem exits change the T-con Board and then Main Board.
Check the internal patterns from the SVC option.
FBE : Factory mode(mute  1  8 - 2 power on when TV is "standby on")  SVC 
Test Pattern  FBE Pattern Sel "FBE pattern is created by Main IC(Valencia)
Case1: FBE pattern is ok , then change the T-con Board.
Case2: FBE pattern is NG , change the main Board.
SMPS BOARD
T-CON
MAIN BOARD
4. Troubleshooting
4-1