4-2-5. No Video (Video AV)
Note
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 Video CVBS source.
•
This may happen when the LVDS cable connecting the Main Board and the Panel is
•
disconnected.
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
No
Check a set in the ‘Stand-by mode’.
Yes
Check the video source and check the
connection of video cable?
No
Input the video source properly.
Yes
2
Check the LVDS clk signal at output of
Main board. (TX)
TX2_CLK : ODD_TXCLK_DN/DP
-
TX4_CLK : EVEN_TXCLK_DN/DP
-
No
Check IC1001(X12)
Change the Main Ass’y.
Yes
Check the LVDS cable?
Replace the T CON / LCD panel?
No
Please, Contact tech support.
Caution
Make sure to disconnect the power before working on the IP Board.
4-16
4. Troubleshooting
Содержание UE32F6270SS
Страница 41: ...Waveforms 1 HDMI input RX_Data RX_Clk 2 LVDS output 4 9 4 Troubleshooting...
Страница 43: ...Location of Parts Main Board_Front C A B Detail A Pin 4 B3 3V Pin 1 B1 8V B C807 C 4 11 4 Troubleshooting...
Страница 44: ...Waveforms 1 CVBS OUT Grey Bar 2 LVDS output 4 12 4 Troubleshooting...
Страница 46: ...Location of Parts Main Board_Front B A Detail A Pin 4 B3 3V Pin 1 B1 8V B 4 14 4 Troubleshooting...
Страница 47: ...Waveforms 1 CVBS OUT Grey Bar 2 CH_CLK CH_VALID 2 CH_CLK CH_VALID 4 15 4 Troubleshooting...
Страница 49: ...Location of Parts Main Board_Front B A Detail A R816 COMP2_Y_CVBS B 4 17 4 Troubleshooting...
Страница 50: ...Waveforms 1 CVBS OUT Grey Bar 2 LVDS output 4 18 4 Troubleshooting...
Страница 56: ...Location of Parts Main Board_Front E Detail E CN302 SPK 4 24 4 Troubleshooting...