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4-19
4. Troubleshooting
4-1-8. No Video (Component)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the Component source
-
Check the chelsea.
-
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
Does the component daga appear at
TP-COMP_Y, COMP_PB, COMP_PR?
No
Yes
Power indicator LED is off.
Lamp(Backlight) on, no video?
Yes
Check the component source and
check the connection of
component cables(Y,Pb,Pr)?
No
Input the component
source properly.
Yes
Check CN802.
Change the main assy.
Check the LVDS cable?
Check the T-Con B’d?
Replace the LCD panel?
Please, Contact Tech support
No
Does the digital data appear at
OD(D3+),
ODD_TXCLK-(D3-)?
No
Check IC1102(SETD-10).
Change the main assy.
2
No
Check a set
in the ‘Stand-by mode’.
5
Yes
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LE19C45 Series
Страница 7: ...1 4 1 Precautions Memo ...
Страница 20: ...4 3 4 Troubleshooting Power CN2001 Pin 1 2 3 4 5 6 7 8 9 Dimming out A13V GND GND GND A5V A5V NC Panel Setting ...
Страница 22: ...4 5 4 Troubleshooting ...
Страница 23: ...4 6 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output ...
Страница 25: ...4 8 4 Troubleshooting ...
Страница 26: ...4 9 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output ...
Страница 28: ...4 11 4 Troubleshooting ...
Страница 29: ...4 12 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Страница 31: ...4 14 4 Troubleshooting ...
Страница 32: ...4 15 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Страница 34: ...4 17 4 Troubleshooting ...
Страница 35: ...4 18 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Страница 37: ...4 20 4 Troubleshooting ...
Страница 38: ...4 21 4 Troubleshooting WAVEFORMS 5 Compnent_Y Gray scale Pb Pr Color bar 2 LVDS output ...
Страница 40: ...4 23 4 Troubleshooting ...
Страница 41: ...4 24 4 Troubleshooting WAVEFORMS 6 I2S DATA 7 Speaker out ...
Страница 56: ...4 39 4 Troubleshooting 4 9 PCB diagram ...
Страница 57: ...4 40 4 Troubleshooting ...