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.
3.
No Video : If the problem is No Video but BLU is on and Indication LED is blinking repeatedly and faster than nomal booting,
a.
replace the T-Con board.
Distorted Picture : Check the inner patterns.
b.
For All mode
•
GenoaP
Napoli Pre
Napoli post
Piocture
Problem
OK
OK
OK
NG
Main board or Signal Source
NG
OK
OK
NG
Main board
NG
NG
NG
NG
Main or LVDS cable or T-con or Panel
Only for HDMI mode (additional check)
•
HDMI
Picture
Problem
OK
NG
There is no problems after HDMI IC check HDMI source or HDMI jack.
NG
NG
There is no problems before HDMI IC check GenoaS pattern or LVDS cable or T-con.
How to check inner pattern?
•
Factory mode(
1.
Mute
1
8
2
Power on
when TV is in ‘
Stand-by mode
’)
Move to SVC menu.
2.
Move to Test Pattern.
3.
Check inner patterns.
4.
(This model only support GenoaS, GenoaS FRC POST, HDMI)
MAIN BOARD
SMPS BOARD
T-CON
Summary of Contents for UN40D6400UF
Page 37: ...4 4 4 Troubleshooting Location Main A B Detail A B...
Page 38: ...4 5 4 Troubleshooting Location T Con C Detail C...
Page 40: ...4 7 4 Troubleshooting Location Main B A Detail A B...
Page 41: ...4 8 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output...
Page 43: ...4 10 4 Troubleshooting Location Main B A Detail A B...
Page 44: ...4 11 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output...
Page 46: ...4 13 4 Troubleshooting Location Main B A Detail A B...
Page 47: ...4 14 4 Troubleshooting WAVEFORMS 1 CVBS OUT Grey Bar 2 LVDS output...
Page 49: ...4 16 4 Troubleshooting Location Main B A Detail A B...
Page 50: ...4 17 4 Troubleshooting WAVEFORMS 1 LVDS output 2 CH_CLK CH_VALID...
Page 52: ...4 19 4 Troubleshooting Location Main B D C A Detail A B C D...
Page 53: ...4 20 4 Troubleshooting WAVEFORMS 1 CVBS OUT Grey Bar 2 LVDS output...
Page 55: ...4 22 4 Troubleshooting Location Main B A Detail A B...
Page 56: ...4 23 4 Troubleshooting WAVEFORMS 1 Compnent_Y Gray scale Pb Pr Color bar 2 LVDS output...
Page 58: ...4 25 4 Troubleshooting Location Main B A C Detail A B C...
Page 59: ...4 26 4 Troubleshooting WAVEFORMS 1 MCLK LRCLK PCM_I2C_DATA 2 Speaker Monitor OUT SPDIF OUT...