4-21
4. Troubleshooting
4-1-7. No Video (Component)
N
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the Component source
-
Check the Valencia
-
This may happen when the LVDS cable connecting the Main Board and the Panel is
-
disconnected.
Diagnostics
MAIN BOARD
SMPS BOARD
T-CON
Input the component source properly.
Please, contact Tech support.
Check CN501 or Compnent gender.
Change the Main Assy.
Check IC1001 (GenoaS) and
IC2001(Parma).
Change the Main Assy.
No
No
No
No
Yes
Yes
Yes
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Check a set in the ‘Stand-by mode’.
No
Yes
Check the component source and
check the connection of component
cables(Y,Pb,Pr) ?
Check the LVDS cable?
Check the T-con board?
Replace the LCD panel?
Does the component data appear at ?
Comp1 Y : R537
Pb : R544
Pr : R542
Check the LVDS clk signal at output of
Main board.(TX)
TX2_CLK : LV_TX2_DN/DP
TX4_CLK : LV_TX4_DN/DP
1
2
Caution
Make sure to disconnect the power before working on the IP board.
Summary of Contents for UN32D6500VF
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 ...