4-1
4. Troubleshooting
4. Troubleshooting
4-1. Troubleshooting
Check the various cable connections first.
1.
• 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.
2.
How to distinguish if the problem is caused by Main Board or T-Con Board.
3.
a. In case of No Video : If the problem is No Video but BLU is on and Indication LED is blinking repeatedly,
check the LVDS cable first. If the problem exits change the T-con Board and then Main Board.
b. Distorted Picture : 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
MAIN BOARD
T-CON
Содержание UN46C6900VF
Страница 43: ...4 3 4 Troubleshooting ...
Страница 53: ...4 13 4 Troubleshooting Location Main TOP CN401 IC901 Location Main BOTTOM ...
Страница 54: ...4 14 4 Troubleshooting WAVEFORMS 1 2 PC Input V Sync H Sync 3 LVDS Out CLK ...
Страница 56: ...4 16 4 Troubleshooting Location Main TOP CN1902 IC601 IC1101 Location Main BOTTOM ...
Страница 57: ...4 17 4 Troubleshooting WAVEFORMS 4 5 HDMI Input CLK 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
Страница 59: ...4 19 4 Troubleshooting Location Main TOP TU801 IC1101 CN1902 Location Main BOTTOM ...
Страница 60: ...4 20 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 6 Eagle Out Clk H Sync ...
Страница 62: ...4 22 4 Troubleshooting Location Main TOP TU801 IC1101 CN1902 Location Main BOTTOM ...
Страница 63: ...4 23 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
Страница 65: ...4 25 4 Troubleshooting Location Main TOP R528 IC1101 CN1902 Location Main BOTTOM ...
Страница 66: ...4 26 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar ...
Страница 68: ...4 28 4 Troubleshooting Location Main TOP IC1101 CN1902 R503 R502 R501 Location Main BOTTOM ...
Страница 69: ...4 29 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 9 Component Input Y Pb ...
Страница 71: ...4 31 4 Troubleshooting Location Main TOP CN407 IC1101 IC301 Location Main BOTTOM ...
Страница 72: ...4 32 4 Troubleshooting WAVEFORMS 0 Audio Input Sign Wave I2S Input Clk Data Audio Amp Out Sign Wave ...